Import VBCC source snapshot (29/04/2022)
diff --git a/machines/c16x/machine.c b/machines/c16x/machine.c
new file mode 100755
index 0000000..b80fd10
--- /dev/null
+++ b/machines/c16x/machine.c
@@ -0,0 +1,3728 @@
+/* Code generator for SAB c16x microcontrollers. */
+
+#include "supp.h"
+
+static char FILE_[]=__FILE__;
+/* Public data that MUST be there. */
+
+/* Name and copyright. */
+char cg_copyright[]="vbcc code-generator for c16x V0.3 (c) in 1998-2005 by Volker Barthelmann";
+
+/* Commandline-flags the code-generator accepts */
+int g_flags[MAXGF]={VALFLAG,0,0,0,
+ 0,0,0,0,
+ 0};
+char *g_flags_name[MAXGF]={"cpu","int32","no-delayed-popping","const-in-data",
+ "merge-constants","no-peephole","mtiny","mlarge",
+ "mhuge","tasking"};
+union ppi g_flags_val[MAXGF];
+
+/* Typenames (needed because of HAVE_EXT_TYPES). */
+char *typname[]={"strange","bit","char","short","int","long","long long",
+ "float","double","long double","void",
+ "near-pointer","far-pointer","huge-pointer",
+ "array","struct","union","enum","function"};
+
+/* Alignment-requirements for all types in bytes. */
+zmax align[MAX_TYPE+1];
+
+/* Alignment that is sufficient for every object. */
+zmax maxalign;
+
+/* CHAR_BIT of the target machine. */
+zmax char_bit;
+
+/* Sizes of all elementary types in bytes. */
+zmax sizetab[MAX_TYPE+1];
+
+/* Minimum and Maximum values each type can have. */
+/* Must be initialized in init_cg(). */
+zmax t_min[MAX_TYPE+1];
+zumax t_max[MAX_TYPE+1];
+zumax tu_max[MAX_TYPE+1];
+
+/* Names of all registers. */
+char *regnames[]={"noreg","R0","R1","R2","R3","R4","R5","R6","R7",
+ "R8","R9","R10","R11","R12","R13","R14","R15",
+ "R6/R7","R7/R8","R8/R9","R4/R5",
+ "R14/R15","R13/R14","R12/R13",
+ "R3/R4","R2/R3",
+ "MAXR+1","MAXR+2","ZEROS","ONES"};
+
+/* The Size of each register in bytes. */
+zmax regsize[MAXR+1];
+
+/* Type which can store each register. */
+struct Typ *regtype[MAXR+1];
+
+/* regsa[reg]!=0 if a certain register is allocated and should */
+/* not be used by the compiler pass. */
+int regsa[MAXR+1];
+
+/* Specifies which registers may be scratched by functions. */
+int regscratch[MAXR+1]={0,1,1,1,1,1,1,0,0,0,0,1,1,1,1,1,1,0,0,0,1,1,1,1,1,1};
+
+int reg_prio[MAXR+1]={0,0,0,0,0,2,3,1,1,1,1,0,0,4,5,6,7,1,1,1,2,6,5,4,0,0};
+
+struct reg_handle empty_reg_handle={0};
+
+/* Names of target-specific variable attributes. */
+char *g_attr_name[]={"__interrupt","__dpp0","__dpp1","__dpp2","__dpp3",0};
+#define INTERRUPT 1
+#define DPP0 2
+#define DPP1 4
+#define DPP2 8
+#define DPP3 16
+
+
+/****************************************/
+/* Some private data and functions. */
+/****************************************/
+
+static char *bregnames[]={"nobreg","RL0","RL1","RL2","RL3","RL4","RL5","RL6","RL7",
+ "e8","e9","e10","e11","e12","e13","e14","e15","e16",
+ "e17","e18","e19","e20","e21","e22"
+};
+
+static long malign[MAX_TYPE+1]= {1,1,1,2,2,2,2,2,2,2,1,2,2,2,1,1,1,2,1};
+static long msizetab[MAX_TYPE+1]={0,1,1,2,2,4,8,4,8,8,0,2,4,4,0,0,0,2,0};
+
+struct Typ ityp={SHORT},ltyp={LONG};
+
+#define INT32 (g_flags[1]&USEDFLAG)
+#define TINY (g_flags[6]&USEDFLAG)
+#define LARGE (g_flags[7]&USEDFLAG)
+#define HUGE (g_flags[8]&USEDFLAG)
+#define TASKING (g_flags[9]&USEDFLAG)
+
+
+#define NDATA 0
+#define NBSS 1
+#define NCDATA 2
+#define FDATA 3
+#define FBSS 4
+#define FCDATA 5
+#define HDATA 6
+#define HBSS 7
+#define HCDATA 8
+#define CODE 9
+#define SPECIAL 10
+#define BITS 11
+
+#define SEG r2
+#define SOF r1
+
+#define MTMP1 MAXR+1
+#define MTMP2 MAXR+2
+#define ZEROS MAXR+3
+#define ONES MAXR+4
+
+static int section=-1,newobj,scnt;
+static char *codename="SCODE\tSECTION CODE WORD PUBLIC 'CPROGRAM'\n",*ecode="SCODE\tends\n",
+ *ndataname="NDATA\tSECTION LDAT WORD PUBLIC\n",*endata="NDATA\tends\n",
+ *fdataname="FDATA\tSECTION LDAT WORD PUBLIC\n",*efdata="FDATA\tends\n",
+ *hdataname="HDATA\tSECTION LDAT WORD PUBLIC\n",*ehdata="HDATA\tends\n",
+ *nbssname="NBSS\tSECTION LDAT WORD PUBLIC\n",*enbss="NBSS\tends\n",
+ *fbssname="FBSS\tSECTION LDAT WORD PUBLIC\n",*efbss="FBSS\tends\n",
+ *hbssname="HBSS\tSECTION LDAT WORD PUBLIC\n",*ehbss="HBSS\tends\n",
+ *ncdataname="NCDATA\tSECTION LDAT WORD PUBLIC\n",*encdata="NCDATA\tends\n",
+ *fcdataname="FCDATA\tSECTION LDAT WORD PUBLIC\n",*efcdata="FCDATA\tends\n",
+ *hcdataname="HCDATA\tSECTION LDAT WORD PUBLIC\n",*ehcdata="HCDATA\tends\n",
+
+ *bitsname="BITS\tSECTION BIT BIT PUBLIC 'CBITS'\n",*ebits="BITS\tends\n";
+
+static char *even="\teven\n",*public="public",*comment="; ";
+
+#define IMM_IND 1
+#define VAR_IND 2
+#define POST_INC 3
+#define PRE_DEC 4
+
+static char sec_end[32];
+/* (user)stack-pointer, pointer-tmp, int-tmp; reserved for compiler */
+static const int sp=1,tp=2,ti=11,ti2=12,r4=5,r5=6,r4r5=20;
+static int tmp1,tmp2,tmp3,tmp4;
+static void pr(FILE *,struct IC *);
+static void function_top(FILE *,struct Var *,long);
+static void function_bottom(FILE *f,struct Var *,long);
+static int scratchreg(int,struct IC *);
+static struct Var nvar,fvar;
+
+static char *marray[]={0,
+ "__far=__attr(\"far\")",
+ "__near=__attr(\"near\")",
+ "__huge=__attr(\"huge\")",
+ "__bit=__attr(\"bit\") unsigned char",
+ /*"__section(x)=__vattr(\"section(\"x\")\")",*/
+ "__section(x,y)=__vattr(\"section(\"#x\",\"#y\")\")",
+ "__rbank(x)=__vattr(\"rbank(\"__str(x)\")\")",
+ "__interrupt(x)=__interrupt __vattr(\"ivec(\"__str(x)\")\")",
+ "__sysstack(x)=__stack2(x)",
+ "__usrstack(x)=__stack(x)",
+ "__C16X__",
+ "__C167__",
+ "__ST10__",
+ "__sfr(x)=__vattr(\"sfr(\"__str(x)\")\") extern",
+ "__sfrbit(x,y)=__vattr(\"sfrbit(\"__str(x)\",\"__str(y)\")\") extern",
+ "__esfr(x)=__vattr(\"sfre(\"__str(x)\")\") extern",
+ "__esfrbit(x,y)=__vattr(\"sfrbite(\"__str(x)\",\"__str(y)\")\") extern",
+ "__SIZE_T_INT=1",
+ "__str(x)=#x",
+ 0};
+
+#define isreg(x) ((p->x.flags&(REG|DREFOBJ))==REG)
+#define isconst(x) ((p->x.flags&(KONST|DREFOBJ))==KONST)
+#define issfrv(v) (v->vattr&&strstr(v->vattr,"sfr("))
+#define issfrbitv(v) (v->vattr&&strstr(v->vattr,"sfrbit("))
+#define isesfrv(v) (v->vattr&&strstr(v->vattr,"sfre("))
+#define isesfrbitv(v) (v->vattr&&strstr(v->vattr,"sfrbite("))
+#define issfr(x) ((p->x.flags&(VAR|DREFOBJ))==VAR&&issfrv(p->x.v))
+#define issfrbit(x) ((p->x.flags&(VAR|DREFOBJ))==VAR&&issfrbitv(p->x.v))
+#define isesfr(x) ((p->x.flags&(VAR|DREFOBJ))==VAR&&isesfrv(p->x.v))
+#define isesfrbit(x) ((p->x.flags&(VAR|DREFOBJ))==VAR&&isesfrbitv(p->x.v))
+
+static long loff,sysstackoffset,usrstackoffset,notpopped,dontpop,
+ usrmaxpushed,sysmaxpushed,sysstack,usrstack;
+
+static char *x_t[]={"?","","b","","","","","","","","","","","","","",""};
+static char *ccs[]={"z","nz","lt","ge","le","gt"};
+static char *logicals[]={"or","xor","and"};
+static char *arithmetics[]={"shl","shr","add","sub","mul","div","mod"};
+static char *dct[]={"","dbit","db","dw","dw","dw","dw","dw","dw","dw",
+ "(void)","dw","dsptr","dsptr"};
+static char *vdct[]={"",".bit",".byte",".short",".short",".short",".short",".short",".short",".short",
+ "(void)",".short",".long",".long"};
+static int pushedsize,pushorder=2;
+static char *idprefix="_",*labprefix="l";
+static int ti2_used;
+static struct rpair qp;
+static int exit_label,have_frame,stackchecklabel,stack_valid;
+static char *ret,*call,*jump;
+static int frame_used;
+
+static char *dppprefix="___DPP_";
+static int romdpp=0,ramdpp=1;
+
+#define STR_NEAR "near"
+#define STR_FAR "far"
+#define STR_HUGE "huge"
+#define STR_BADDR "baddr"
+
+#define ISNULL() (zmeqto(vmax,l2zm(0L))&&zumeqto(vumax,ul2zum(0UL))&&zldeqto(vldouble,d2zld(0.0)))
+#define ISLWORD(t) ((t&NQ)==LONG||(t&NQ)==FPOINTER||(t&NQ)==HPOINTER||(t&NQ)==FLOAT)
+#define ISHWORD(t) ((t&NQ)==INT||(t&NQ)==SHORT||(t&NQ)==NPOINTER)
+#define ISSTATIC(v) ((v)->storage_class==EXTERN||(v)->storage_class==STATIC)
+#define ISBADDR(v) ((v)->vtyp->attr&&strstr(STR_BADDR,(v)->vtyp->attr))
+
+static int dppuse(struct Var *v,int section)
+{
+ if(v->tattr&DPP0) return 0;
+ if(v->tattr&DPP1) return 1;
+ if(v->tattr&DPP2) return 2;
+ if(v->tattr&DPP3) return 3;
+ if(section==NCDATA) return romdpp;
+ if(section==NDATA||section==NBSS) return ramdpp;
+ return -1;
+}
+
+static int ISFAR(struct Var *v)
+{
+ struct Typ *vt;
+ if(v==&nvar) return 0;
+ if(v==&fvar) return 1;
+ if(issfrv(v)||isesfrv(v)||issfrbitv(v)||isesfrbitv(v))
+ return 0;
+ vt=v->vtyp;
+ while(ISARRAY(vt->flags)) vt=vt->next;
+ if(vt->attr&&strstr(STR_NEAR,vt->attr))
+ return 0;
+ if(HUGE||LARGE)
+ return 1;
+ if(vt->attr&&(strstr(STR_FAR,vt->attr)||strstr(STR_HUGE,vt->attr)))
+ return 1;
+ return 0;
+}
+
+static int special_section(FILE *f,struct Var *v)
+{
+ char *sec,*e;
+ if(!v->vattr) return 0;
+ sec=strstr(v->vattr,"section(");
+ if(!sec) return 0;
+ sec+=strlen("section(");
+ if(f&&TASKING){
+ emit(f,sec_end);
+ e=sec_end;
+ while(*sec&&*sec!=')') {
+ *e++=*sec;
+ emit_char(f,*sec++);
+ }
+ *e=0;
+ strcat(sec_end,"\tends\n");
+ emit(f,"\tSECTION LDAT WORD PUBLIC\n");
+ }else{
+ emit(f,"\t.section\t");
+ while(*sec&&*sec!=')') emit_char(f,*sec++);
+ emit(f,"\n");
+ }
+ if(f) section=SPECIAL;
+ return 1;
+}
+
+static struct fpconstlist {
+ struct fpconstlist *next;
+ int label,typ;
+ union atyps val;
+} *firstfpc;
+
+static int addfpconst(struct obj *o,int t)
+{
+ struct fpconstlist *p=firstfpc;
+ t&=NQ;
+ if(g_flags[4]&USEDFLAG){
+ for(p=firstfpc;p;p=p->next){
+ if(t==p->typ){
+ eval_const(&p->val,t);
+ if(t==FLOAT&&zldeqto(vldouble,zf2zld(o->val.vfloat))) return p->label;
+ if(t==DOUBLE&&zldeqto(vldouble,zd2zld(o->val.vdouble))) return p->label;
+ if(t==LDOUBLE&&zldeqto(vldouble,o->val.vldouble)) return p->label;
+ }
+ }
+ }
+ p=mymalloc(sizeof(struct fpconstlist));
+ p->next=firstfpc;
+ p->label=++label;
+ p->typ=t;
+ p->val=o->val;
+ firstfpc=p;
+ return p->label;
+}
+static void callee_push(long usr,long sys)
+{
+ if(usr-usrstackoffset>usrstack)
+ usrstack=usr-usrstackoffset;
+ if(sys-sysstackoffset>sysstack)
+ sysstack=sys-sysstackoffset;
+}
+static void push(long usr,long sys)
+{
+ usrstackoffset-=usr;
+ if(usrstackoffset<usrmaxpushed)
+ usrmaxpushed=usrstackoffset;
+ if(-usrmaxpushed>usrstack) usrstack=-usrmaxpushed;
+ sysstackoffset-=sys;
+ if(sysstackoffset<sysmaxpushed)
+ sysmaxpushed=sysstackoffset;
+ if(-sysmaxpushed>sysstack) sysstack=-sysmaxpushed;
+}
+static void pop(long usr,long sys)
+{
+ usrstackoffset+=usr;
+ sysstackoffset+=sys;
+}
+int pointer_type(struct Typ *p)
+{
+ struct Typ *merk=p;
+ if(!p) ierror(0);
+ while(ISARRAY(p->flags)||ISFUNC(p->flags)) p=p->next;
+ if(p->attr){
+ if(strstr(p->attr,STR_HUGE)) return HPOINTER;
+ if(strstr(p->attr,STR_FAR)) return FPOINTER;
+ if(strstr(p->attr,STR_NEAR)) return NPOINTER;
+ }
+ if((merk->flags&NQ)==FUNKT){
+ if(TINY)
+ return NPOINTER;
+ else
+ return HPOINTER;
+ }
+ if(LARGE)
+ return FPOINTER;
+ else if(HUGE)
+ return HPOINTER;
+ else
+ return NPOINTER;
+}
+static long voff(struct obj *p)
+{
+ if(p->v->offset<0)
+ return loff-zm2l(p->v->offset)+zm2l(p->val.vmax)-usrstackoffset+pushedsize-2;
+ return zm2l(p->v->offset)+zm2l(p->val.vmax)-usrstackoffset;
+}
+static int alignment(struct obj *o)
+{
+ if(o->flags&DREFOBJ) return 1;
+ if(!(o->flags&VAR)) ierror(0);
+ if(ISSTATIC(o->v)) return zm2l(o->val.vmax)&1;
+ return voff(o)&1;
+}
+
+static int isseg;
+
+static void emit_obj(FILE *f,struct obj *p,int t)
+/* Gibt Objekt auf Bildschirm aus */
+{
+ if(p->am){
+ static struct rpair bp;
+ int base;
+ if(reg_pair(p->am->base,&bp))
+ base=bp.SOF;
+ else
+ base=p->am->base;
+ if(p->am->flags==POST_INC){
+ emit(f,"[%s+]",regnames[base]);
+ return;
+ }else if(p->am->flags==PRE_DEC){
+ emit(f,"[-%s]",regnames[base]);
+ return;
+ }else{
+ emit(f,"[%s+#%ld",regnames[base],p->am->offset);
+ if(p->am->v){
+ if(p->am->v->storage_class==STATIC)
+ emit(f,"+%s%ld",labprefix,zm2l(p->am->v->offset));
+ else
+ emit(f,"+%s%s",idprefix,p->am->v->identifier);
+ }
+ emit(f,"]");
+ return;
+ }
+ }
+ if((p->flags&(KONST|DREFOBJ))==(KONST|DREFOBJ)){
+ emitval(f,&p->val,p->dtyp&NU);
+ return;
+ }
+ if((p->flags&(DREFOBJ|REG))==(DREFOBJ|REG)) emit(f,"[");
+ if(p->flags&VARADR) emit(f,"#");
+ if((p->flags&(VAR|REG))==VAR){
+ if(p->v==&nvar||p->v==&fvar){
+ if(p->v==&fvar) emit(f,"SOF ");
+ emitval(f,&p->val,p->dtyp&NU);
+ return;
+ }else if(issfrv(p->v)||isesfrv(p->v)||issfrbitv(p->v)||isesfrbitv(p->v)){
+ emit(f,"%s",p->v->identifier);
+ }else if(p->v->storage_class==AUTO||p->v->storage_class==REGISTER){
+ if(voff(p))
+ emit(f,"[%s+#%ld]",regnames[sp],voff(p));
+ else emit(f,"[%s]",regnames[sp]);
+ }else{
+ if(!isseg&&!ISFUNC(p->v->vtyp->flags)){
+ if(ISFAR(p->v))
+ emit(f,"SOF ");
+ else
+ emit(f,"DPPX:");
+ }
+ isseg=0;
+ if(!zmeqto(l2zm(0L),p->val.vmax)){emitval(f,&p->val,LONG);emit(f,"+");}
+ if(p->v->storage_class==STATIC){
+ emit(f,"%s%ld",labprefix,zm2l(p->v->offset));
+ }else{
+ emit(f,"%s%s",idprefix,p->v->identifier);
+ }
+ }
+ }
+ if(p->flags®){
+ if(p->reg==MTMP1||p->reg==MTMP2){
+ if(!reg_pair(p->reg,&rp)) ierror(0);
+ emit(f,"%s",regnames[rp.SOF]);
+ }else{
+ emit(f,"%s",regnames[p->reg]);
+ if((t&NQ)==BIT) emit(f,".0");
+ }
+ }
+ /* sometimes we just or a REG into a KONST */
+ if((p->flags&(KONST|REG))==KONST){
+ if(ISFLOAT(t)){
+ emit(f,"%s%d",labprefix,addfpconst(p,t));
+ }else{
+ emit(f,"#");emitval(f,&p->val,t&NU);
+ }
+ }
+ if((p->flags&(DREFOBJ|REG))==(DREFOBJ|REG)) emit(f,"]");
+}
+
+static void pr(FILE *f,struct IC *p)
+{
+}
+static int switched_bank;
+static void function_top(FILE *f,struct Var *v,long offset)
+/* erzeugt Funktionskopf */
+{
+ int i;char *tmp;
+ static int wrote_header;
+ if(f&&!wrote_header){
+ wrote_header=1;
+ if(!TASKING){
+ emit(f,"\t.sfr\tZEROS,0xfe,0x8e\n");
+ emit(f,"\t.sfr\tONES,0xfe,0x8f\n");
+ emit(f,"\t.sfr\tCP,0xfe,0x08\n");
+ emit(f,"\t.sfr\tMDH,0xfe,0x06\n");
+ emit(f,"\t.sfr\tMDL,0xfe,0x07\n");
+ emit(f,"\t.sfr\tPSW,0xfe,0x88\n");
+ }
+ }
+ have_frame=0;stack_valid=1;
+ pushedsize=0;
+ if(v->vattr&&(tmp=strstr(v->vattr,"ivec("))){
+ int vec;char c;int rc;
+ rc=sscanf(tmp+5,"%i%c",&vec,&c);
+ if(rc!=2||c!=')') error(324,"illegal vector number");
+ emit(f,"\t.section\t\".ivec%d\",\"axr\"\n",vec);
+ emit(f,"\t.global\tivec%d\nivec%d:\n",vec,vec);
+ if(v->storage_class==EXTERN)
+ emit(f,"\tjmps\t%s%s\n",idprefix,v->identifier);
+ else
+ emit(f,"\tjmps\t%s%ld\n",labprefix,zm2l(v->offset));
+ section=-1;
+ }
+ if(!special_section(f,v)&§ion!=CODE){
+ if(f&&TASKING){
+ emit(f,sec_end);emit(f,codename);
+ section=CODE;
+ strcpy(sec_end,ecode);
+ }else
+ emit(f,codename);
+ }
+ if(TASKING){
+ if(v->storage_class==EXTERN){
+ if((v->flags&(INLINEFUNC|INLINEEXT))!=INLINEFUNC)
+ emit(f,"\tpublic\t%s%s\n",idprefix,v->identifier);
+ if(TINY)
+ emit(f,"%s%s\tproc\tnear\n",idprefix,v->identifier);
+ else
+ emit(f,"%s%s\tproc\tfar\n",idprefix,v->identifier);
+ }else{
+ if(TINY)
+ emit(f,"%s%ld\tproc\tnear\n",labprefix,zm2l(v->offset));
+ else
+ emit(f,"%s%ld\tproc\tfar\n",labprefix,zm2l(v->offset));
+ }
+ }else{
+ if(v->storage_class==EXTERN){
+ if((v->flags&(INLINEFUNC|INLINEEXT))!=INLINEFUNC)
+ emit(f,"\t.global\t%s%s\n",idprefix,v->identifier);
+ emit(f,"\t.align\t1\n%s%s:\n",idprefix,v->identifier);
+ }else{
+ emit(f,"\t.align\t1\n%s%ld:\n",labprefix,zm2l(v->offset));
+ }
+ }
+ if(v->vattr&&(tmp=strstr(v->vattr,"rbank("))){
+ char *p;
+ tmp+=strlen("rbank(");
+ emit(f,"\tmov\t%s",idprefix);
+ for(p=tmp;*p&&*p!=')';p++) emit_char(f,*p);
+ emit(f,",%s\n",regnames[sp]);
+ emit(f,"\tscxt\tCP,#%s",idprefix);
+ for(p=tmp;*p&&*p!=')';p++) emit_char(f,*p);
+ emit(f,"\n");
+ switched_bank=1;
+ }else
+ switched_bank=0;
+ if(v->tattr&INTERRUPT){
+ /*FIXME?*/
+ emit(f,"\tpush\tMDL\n");
+ emit(f,"\tpush\tMDH\n");
+ }
+ if(stack_check){
+ stackchecklabel=++label;
+ BSET(regs_modified,tp);
+ emit(f,"\tmov\t%s,#%s%d\n",regnames[tp],labprefix,stackchecklabel);
+ emit(f,"\t%s\t%s__stack_check\n",call,idprefix);/*FIXME:usrstack*/
+ }
+ for(i=1;i<=16;i++){
+ if(regused[i]&&!regscratch[i]&&!regsa[i]){
+ emit(f,"\tmov\t[-%s],%s\n",regnames[sp],regnames[i]);
+ push(2,0);
+ have_frame=1;pushedsize+=2;
+ }
+ }
+ if(offset){
+ emit(f,"\tsub\t%s,#%ld\n",regnames[sp],offset);
+ have_frame=1;
+ }
+}
+static void function_bottom(FILE *f,struct Var *v,long offset)
+/* erzeugt Funktionsende */
+{
+ int i;
+ if(offset) emit(f,"\tadd\t%s,#%ld\n",regnames[sp],offset);
+ for(i=16;i>0;i--){
+ if(regused[i]&&!regscratch[i]&&!regsa[i]){
+ emit(f,"\tmov\t%s,[%s+]\n",regnames[i],regnames[sp]);
+ pop(2,0);
+ }
+ }
+ if(v->tattr&INTERRUPT){
+ emit(f,"\tpop\tMDH\n");
+ emit(f,"\tpop\tMDL\n");
+ }
+ if(switched_bank)
+ emit(f,"\tpop\tCP\n");
+ if(ret) emit(f,"\t%s\n",ret);
+ if(TASKING){
+ if(v->storage_class==EXTERN){
+ emit(f,"%s%s\tendp\n",idprefix,v->identifier);
+ if(!strcmp("main",v->identifier)) emit(f,"\textern\t__CSTART:far\n");
+ }else
+ emit(f,"%s%ld\tendp\n",labprefix,zm2l(v->offset));
+ }else{
+ if(v->storage_class==EXTERN){
+ emit(f,"\t.type\t%s%s,@function\n",idprefix,v->identifier);
+ emit(f,"\t.size\t%s%s,$-%s%s\n",idprefix,v->identifier,idprefix,v->identifier);
+ }else{
+ emit(f,"\t.type\t%s%ld,@function\n",labprefix,zm2l(v->offset));
+ emit(f,"\t.size\t%s%ld,$-%s%ld\n",labprefix,zm2l(v->offset),labprefix,zm2l(v->offset));
+ }
+ }
+ if(stack_check)
+ emit(f,"%s%d\tequ\t%ld\n",labprefix,stackchecklabel,offset+pushedsize-usrmaxpushed);
+ if(stack_valid){
+ long ustack=usrstack+offset+pushedsize,sstack=sysstack;
+ if(!v->fi) v->fi=new_fi();
+ if(v->fi->flags&ALL_STACK){
+ if(v->fi->stack1!=ustack)
+ if(f) error(319,"user-",ustack,v->fi->stack1);
+ if(v->fi->stack2!=sstack)
+ if(f) error(319,"system-",sstack,v->fi->stack2);
+ }else{
+ v->fi->flags|=ALL_STACK;
+ v->fi->stack1=ustack;
+ v->fi->stack2=sstack;
+ }
+#if 0
+ emit(f,"%s usrstacksize=%ld\n",comment,zm2l(v->fi->stack1));
+ emit(f,"%s sysstacksize=%ld\n",comment,zm2l(v->fi->stack2));
+#endif
+ if(TASKING){
+ }else{
+ emit(f,"\t.equ\t%s__ustack_%s,%ld\n",idprefix,v->identifier,zm2l(v->fi->stack1));
+ emit(f,"\t.equ\t%s__sstack_%s,%ld\n",idprefix,v->identifier,zm2l(v->fi->stack2));
+ }
+ }
+}
+static int compare_objects(struct obj *o1,struct obj *o2)
+{
+ if(o1->flags==o2->flags&&o1->am==o2->am){
+ if(!(o1->flags&VAR)||(o1->v==o2->v&&zmeqto(o1->val.vmax,o2->val.vmax))){
+ if(!(o1->flags®)||o1->reg==o2->reg){
+ return 1;
+ }
+ }
+ }
+ return 0;
+}
+#define EXT_IC_CMPIA 1
+#define EXT_IC_BTST 2
+#define EXT_IC_CMPIB 3
+static void clear_ext_ic(struct ext_ic *p)
+{
+ p->flags=0;
+ p->r=0;
+ p->offset=0;
+}
+static long pof2(zumax x)
+/* Yields log2(x)+1 oder 0. */
+{
+ zumax p;int ln=1;
+ p=ul2zum(1L);
+ while(ln<=32&&zumleq(p,x)){
+ if(zumeqto(x,p)) return ln;
+ ln++;p=zumadd(p,p);
+ }
+ return 0;
+}
+static void peephole(struct IC *p)
+{
+ int c,c2,r,t;struct IC *p2;
+ struct AddressingMode *am;
+ frame_used=0;
+ for(;p;p=p->next){
+ c=p->code;
+ if(!frame_used){
+ if((p->q1.flags&(REG|VAR))==VAR&&!ISSTATIC(p->q1.v)) frame_used=1;
+ if((p->q2.flags&(REG|VAR))==VAR&&!ISSTATIC(p->q2.v)) frame_used=1;
+ if((p->z.flags&(REG|VAR))==VAR&&!ISSTATIC(p->z.v)) frame_used=1;
+ }
+ /* letztes Label merken */
+ if(c!=FREEREG&&c!=ALLOCREG&&(c!=SETRETURN||!isreg(q1)||p->q1.reg!=p->z.reg)) exit_label=0;
+ if(c==LABEL) exit_label=p->typf;
+ /* and x,#const;bne/beq */
+ if(c==AND&&isconst(q2)&&isreg(z)&&!ISLWORD(ztyp(p))){
+ long bit;
+ eval_const(&p->q2.val,p->typf);
+ if(bit=pof2(vumax)){
+ struct IC *cmp=0;int fr=0;
+ for(p2=p->next;p2;p2=p2->next){
+ c2=p2->code;
+ if(c2==TEST){
+ if((p2->q1.flags&(REG|DREFOBJ))==REG&&p2->q1.reg==p->z.reg){
+ cmp=p2;continue;
+ }
+ }
+ if(c2==COMPARE&&(p2->q1.flags&(REG|DREFOBJ))==REG&&p2->q1.reg==p->z.reg&&(p2->q2.flags&(KONST|DREFOBJ))==KONST){
+ eval_const(&p2->q2.val,p2->typf);
+ if(ISNULL()){
+ cmp=p2;continue;
+ }
+ break;
+ }
+ if(c2==FREEREG&&p2->q1.reg==p->z.reg) {fr++;continue;}
+ if((c2==BNE||c2==BEQ)&&cmp&&fr==1){
+ p->ext.flags=EXT_IC_BTST;
+ p2->ext.flags=EXT_IC_BTST;
+ p2->ext.offset=bit-1;
+ cmp->code=NOP;
+ cmp->q1.flags=cmp->q2.flags=cmp->z.flags=0;
+ break;
+ }
+ if(((p2->q1.flags®)&&p2->q1.reg==p->z.reg)||((p2->q2.flags®)&&p2->q2.reg==p->z.reg)||((p2->z.flags®)&&p2->z.reg==p->z.reg)) break;
+ if(c2==CALL||c2==LABEL||(c2>=BEQ&&c2<=BRA)) break;
+ }
+ }
+ }
+ /* [Rx+] in q1 */
+ if(!p->q1.am&&(p->q1.flags&(REG|DREFOBJ))==(REG|DREFOBJ)){
+ r=p->q1.reg; t=q1typ(p);
+ if((!(p->q2.flags®)||p->q2.reg!=r)&&(!(p->z.flags®)||p->z.reg!=r)){
+ for(p2=p->next;p2;p2=p2->next){
+ c2=p2->code;
+ if((c2==ADD||(c2==ADDI2P&&(p2->typf2&NQ)!=HPOINTER))&&(p2->q1.flags&(REG|DREFOBJ))==REG&&(p2->z.flags&(REG|DREFOBJ))==REG&&p2->q1.reg==r&&p2->z.reg==r&&(p2->q2.flags&(KONST|DREFOBJ))==KONST){
+ eval_const(&p2->q2.val,p2->typf2);
+ if((zmeqto(vmax,l2zm(1L))&&(t&NQ)==CHAR)||(zmeqto(vmax,l2zm(2L))&&ISHWORD(t))){
+ p2->code=NOP;
+ p2->q1.flags=p2->q2.flags=p2->z.flags=0;
+ p->q1.am=mymalloc(sizeof(*am));
+ p->q1.am->flags=POST_INC;
+ p->q1.am->base=r;
+ }else break;
+ }
+ if(c2==CALL||c2==LABEL||(c2>=BEQ&&c2<=BRA)) break;
+ if(((p2->q1.flags®)&&p2->q1.reg==r)||((p2->q2.flags®)&&p2->q2.reg==r)||((p2->z.flags®)&&p2->z.reg==r)) break;
+ }
+ }
+ }
+ /* [Rx+] in q2 */
+ if(!p->q2.am&&(p->q2.flags&(REG|DREFOBJ))==(REG|DREFOBJ)){
+ r=p->q2.reg; t=q2typ(p);
+ if((!(p->q1.flags®)||p->q1.reg!=r)&&(!(p->z.flags®)||p->z.reg!=r)){
+ for(p2=p->next;p2;p2=p2->next){
+ c2=p2->code;
+ if((c2==ADD||(c2==ADDI2P&&(p2->typf2&NQ)!=HPOINTER))&&(p2->q1.flags&(REG|DREFOBJ))==REG&&(p2->z.flags&(REG|DREFOBJ))==REG&&p2->q1.reg==r&&p2->z.reg==r&&(p2->q2.flags&(KONST|DREFOBJ))==KONST){
+ eval_const(&p2->q2.val,p2->typf2);
+ if((zmeqto(vmax,l2zm(1L))&&(t&NQ)==CHAR)||(zmeqto(vmax,l2zm(2L))&&ISHWORD(t))){
+ p2->code=NOP;
+ p2->q1.flags=p2->q2.flags=p2->z.flags=0;
+ p->q2.am=mymalloc(sizeof(*am));
+ p->q2.am->flags=POST_INC;
+ p->q2.am->base=r;
+ }else break;
+ }
+ if(c2==CALL||c2==LABEL||(c2>=BEQ&&c2<=BRA)) break;
+ if(((p2->q1.flags®)&&p2->q1.reg==r)||((p2->q2.flags®)&&p2->q2.reg==r)||((p2->z.flags®)&&p2->z.reg==r)) break;
+ }
+ }
+ }
+ /* move x->t; add/sub x,#1/-1/2/-2-> x; test/cmp t,#0; freereg t => cmpid12 */
+ if(c==ASSIGN&&isreg(q1)&&isreg(z)&&ISHWORD(p->typf)){
+ p2=p->next;if(p2) c2=p2->code;
+ if(p2&&(c2==ADD||c2==SUB||c2==ADDI2P||c2==SUBIFP)&&(p2->q1.flags&(REG|DREFOBJ))==REG&&(p2->z.flags&(REG|DREFOBJ))==REG&&p2->q1.reg==p->q1.reg&&p2->z.reg==p2->q1.reg&&(p2->q2.flags&(KONST|DREFOBJ))==KONST&&ISHWORD(p2->typf)){
+ long l;
+ eval_const(&p2->q2.val,p2->typf);
+ l=zm2l(vmax);
+ if((l==1||l==2||l==-1||l==-2)&&p2->next){
+ struct IC *p3=p2->next;
+ if((p3->code==TEST||(p3->code==COMPARE&&(p3->q2.flags&(KONST|DREFOBJ))==KONST))&&(p3->q1.flags&(REG|DREFOBJ))==REG&&p3->q1.reg==p->z.reg&&scratchreg(p->z.reg,p3)&&ISHWORD(p3->typf)){
+ if(c2==SUB||c2==SUBIFP) l=-l;
+ p3->q1=p->q1;
+ p->code=c=NOP;
+ p->q1.flags=p->q2.flags=p->z.flags=0;
+ p2->code=NOP;
+ p2->q1.flags=p2->q2.flags=p2->z.flags=0;
+ p3->ext.flags=EXT_IC_CMPIB;
+ p3->ext.offset=l;
+ p3->ext.r=p->q1.reg;
+ }
+ }
+ }
+ }
+ /* add/sub x,#1/2/-1/-2 ->x; cmp x,#c => cmpid12 x,#c+-12 */
+ if((c==ADD||c==SUB||c==ADDI2P||c==SUBIFP)&&isreg(q1)&&isreg(z)&&p->q1.reg==p->z.reg&&isconst(q2)&&ISHWORD(p->typf)&&!reg_pair(p->q1.reg,&rp)){
+ eval_const(&p->q2.val,p->typf);
+ if(zmeqto(vmax,l2zm(-1L))||zmeqto(vmax,l2zm(-2L))||zmeqto(vmax,l2zm(1L))||zmeqto(vmax,l2zm(2L))){
+ long l=zm2l(vmax);
+ if(c==SUB||c==SUBIFP) l=-l;
+ r=p->q1.reg;
+ for(p2=p->next;p2;p2=p2->next){
+ c2=p2->code;
+ if((p2->q1.flags&(REG|DREFOBJ))==REG&&p2->q1.reg==r&&(c2==TEST||(c2==COMPARE&&(p2->q2.flags&(KONST|DREFOBJ))==KONST))&&ISHWORD(p2->typf)){
+ unsigned long ul;
+ eval_const(&p2->q2.val,q2typ(p2));
+ ul=zum2ul(vumax);
+ if(ul<65534){
+ p2->ext.flags=EXT_IC_CMPIA;
+ p2->ext.offset=l;
+ p2->ext.r=r;
+ p->code=c=NOP;
+ p->q1.flags=p->q2.flags=p->z.flags=0;
+ }
+ break;
+
+ }
+ if(c2==CALL||c2==LABEL||(c2>=BEQ&&c2<=BRA)) break;
+ if((p2->q1.flags®)&&p2->q1.reg==r) break;
+ if((p2->q2.flags®)&&p2->q2.reg==r) break;
+ if((p2->z.flags®)&&p2->z.reg==r) break;
+ }
+ }
+ }
+ /* [Rx+#const] */
+ if((c==ADDI2P||c==SUBIFP)&&((p->typf2&NQ)==NPOINTER||(p->typf2&NQ)==FPOINTER)&&isreg(z)&&((p->q2.flags&(KONST|DREFOBJ))==KONST||(p->q1.flags&VARADR))){
+ int base;zmax of;struct obj *o;struct Var *v;
+ if(p->q1.flags&VARADR){
+ v=p->q1.v;
+ of=p->q1.val.vmax;
+ r=p->z.reg;
+ if(isreg(q2)) base=p->q2.reg; else base=r;
+ }else{
+ eval_const(&p->q2.val,p->typf);
+ if(c==SUBIFP) of=zmsub(l2zm(0L),vmax); else of=vmax;
+ v=0;
+ r=p->z.reg;
+ if(isreg(q1)) base=p->q1.reg; else base=r;
+ }
+ o=0;
+ for(p2=p->next;p2;p2=p2->next){
+ c2=p2->code;
+ if(c2==CALL||c2==LABEL||(c2>=BEQ&&c2<=BRA)) break;
+ if(c2!=FREEREG&&(p2->q1.flags&(REG|DREFOBJ))==REG&&p2->q1.reg==r) break;
+ if(c2!=FREEREG&&(p2->q2.flags&(REG|DREFOBJ))==REG&&p2->q2.reg==r) break;
+ if(c2!=CALL&&(c2<LABEL||c2>BRA)/*&&c2!=ADDRESS*/){
+ if(!p2->q1.am&&(p2->q1.flags&(REG|DREFOBJ))==(REG|DREFOBJ)&&p2->q1.reg==r){
+ if(o) break;
+ o=&p2->q1;
+ }
+ if(!p2->q2.am&&(p2->q2.flags&(REG|DREFOBJ))==(REG|DREFOBJ)&&p2->q2.reg==r){
+ if(o) break;
+ o=&p2->q2;
+ }
+ if(!p2->z.am&&(p2->z.flags&(REG|DREFOBJ))==(REG|DREFOBJ)&&p2->z.reg==r){
+ if(o) break;
+ o=&p2->z;
+ }
+ }
+ if(c2==FREEREG||(p2->z.flags&(REG|DREFOBJ))==REG){
+ int m;
+ if(c2==FREEREG)
+ m=p2->q1.reg;
+ else
+ m=p2->z.reg;
+ if(m==r){
+ if(o){
+ o->am=am=mymalloc(sizeof(*am));
+ am->flags=IMM_IND;
+ am->base=base;
+ am->offset=zm2l(of);
+ am->v=v;
+ if(!v){
+ if(isreg(q1)){
+ p->code=c=NOP;p->q1.flags=p->q2.flags=p->z.flags=0;
+ }else{
+ p->code=c=ASSIGN;p->q2.flags=0;
+ p->typf=p->typf2;p->q2.val.vmax=sizetab[p->typf2&NQ];
+ }
+ }else{
+ if(isreg(q2)){
+ p->code=c=NOP;p->q1.flags=p->q2.flags=p->z.flags=0;
+ }else{
+ p->code=c=ASSIGN;p->q1=p->q2;p->q2.flags=0;
+ p->q2.val.vmax=sizetab[p->typf&NQ];
+ }
+ }
+ }
+ break;
+ }
+ if(/*get_reg!! c2!=FREEREG&&*/m==base) break;
+ continue;
+ }
+ }
+ }
+ }
+}
+
+static struct obj *cam(int flags,int base,long offset,struct Var *v)
+/* Initializes an addressing-mode structure and returns a pointer to */
+/* that object. Will not survive a second call! */
+{
+ static struct obj obj;
+ static struct AddressingMode am;
+ obj.am=&am;
+ am.flags=flags;
+ am.base=base;
+ am.offset=offset;
+ am.v=v;
+ return &obj;
+}
+/* prints label types used by tasking assembler */
+static void emit_label_type(FILE *f,struct Var *v)
+{
+ if(TASKING){
+ if(ISFUNC(v->vtyp->flags)){
+ if(TINY)
+ emit(f,"near");
+ else
+ emit(f,"far");
+ }else{
+ if((v->vtyp->flags&NQ)==BIT)
+ emit(f,"bit");
+ else if((v->vtyp->flags&NQ)==CHAR)
+ emit(f,"byte");
+ else
+ emit(f,"word");
+ }
+ }
+}
+static void move(FILE *f,struct obj *q,int qr,struct obj *z,int zr,int t)
+/* Generates code to move object q (or register qr) into object z (or */
+/* register zr). One must be a register and DREFOBJ only allowed with */
+/* registers. */
+{
+ long l=0;
+ t&=NQ;
+ if(q&&(q->flags&(REG|DREFOBJ))==REG) qr=q->reg;
+ if(z&&(z->flags&(REG|DREFOBJ))==REG) zr=z->reg;
+ if(qr&&qr==zr) return;
+ if((t&NQ)==BIT){
+ if(!zr&&((z->flags&(VAR|REG|DREFOBJ|VARADR))!=VAR||!ISSTATIC(z->v))) ierror(0);
+ if(q&&(q->flags&(KONST|DREFOBJ))==KONST){
+ if(z&&(z->flags&(VAR|DREFOBJ))==VAR&&isesfrbitv(z->v))
+ emit(f,"\textr\t#1\n");
+ eval_const(&q->val,BIT);
+ if(zmeqto(vmax,l2zm(0L)))
+ emit(f,"\tbclr\t");
+ else
+ emit(f,"\tbset\t");
+ if(zr) emit(f,"%s.0",regnames[zr]); else emit_obj(f,z,t);
+ emit(f,"\n");
+ }else{
+ if(!qr&&((q->flags&(VAR|REG|DREFOBJ|VARADR))!=VAR||!ISSTATIC(q->v))) ierror(0);
+ if((q->flags&(VAR|DREFOBJ))==VAR&&isesfrbitv(q->v)){
+ if(!zr&&((z->flags&(VAR|DREFOBJ))!=VAR||!isesfrbitv(z->v))){
+ emit(f,"\textr\t#1\n");
+ emit(f,"\tbmov\t%s.0,",regnames[ti]);
+ if(qr) emit(f,"%s.0",regnames[qr]); else emit_obj(f,q,t);
+ emit(f,"\n");
+ emit(f,"\tbmov\t");
+ if(zr) emit(f,"%s.0",regnames[zr]); else emit_obj(f,z,t);
+ emit(f,",%s.0\n",regnames[ti]);
+ return;
+ }else
+ emit(f,"\textr\t#1\n");
+ }else if(z&&(z->flags&(VAR|DREFOBJ))==VAR&&isesfrbitv(z->v)){
+ if(!qr){
+ emit(f,"\tbmov\t%s.0,",regnames[ti]);
+ if(qr) emit(f,"%s.0",regnames[qr]); else emit_obj(f,q,t);
+ emit(f,"\n");
+ emit(f,"\textr\t#1\n");
+ emit(f,"\tbmov\t");emit_obj(f,z,t);
+ emit(f,",%s.0\n",regnames[ti]);
+ return;
+ }else
+ emit(f,"\textr\t#1\n");
+ }
+ emit(f,"\tbmov\t");
+ if(zr) emit(f,"%s.0",regnames[zr]); else emit_obj(f,z,t);
+ emit(f,",");
+ if(qr) emit(f,"%s.0",regnames[qr]); else emit_obj(f,q,t);
+ emit(f,"\n");
+ }
+ return;
+ }
+ if(q){
+ if(!zr) ierror(0);
+ if(q->am&®_pair(q->am->base,&rp)){
+ l=rp.SOF;
+ if(zr>16)
+ emit(f,"\texts\t%s,#2\n",regnames[rp.SEG]);
+ else
+ emit(f,"\texts\t%s,#1\n",regnames[rp.SEG]);
+ }else if((q->flags&DREFOBJ)&®_pair(q->reg,&rp)){
+ l=rp.SOF;
+ if(zr>16)
+ emit(f,"\texts\t%s,#2\n",regnames[rp.SEG]);
+ else
+ emit(f,"\texts\t%s,#1\n",regnames[rp.SEG]);
+ }else if((q->flags&(VAR|REG|VARADR))==VAR&&ISSTATIC(q->v)&&ISFAR(q->v)){
+ emit(f,"\texts\t#SEG ");
+ isseg=1;emit_obj(f,q,INT);
+ if(zr>16)
+ emit(f,",#2\n");
+ else
+ emit(f,",#1\n");
+ }
+ if(reg_pair(zr,&rp)){
+ if(q->am){
+ emit(f,"\tmov\t%s,",regnames[rp.r1]);
+ emit_obj(f,q,t);emit(f,"\n");
+ q->am->offset+=2;
+ emit(f,"\tmov\t%s,",regnames[rp.r2]);
+ emit_obj(f,q,t);emit(f,"\n");
+ q->am->offset-=2;
+ return;
+ }else if(q->flags&DREFOBJ){
+ int tmp=0;
+ if(!(q->flags®)) ierror(0);
+ if(!l) l=q->reg;
+ if(l==rp.r1){
+ tmp=rp.r1;
+ /*FIXME: tp hier immer frei? */
+ BSET(regs_modified,tp);
+ rp.r1=tp;
+ }
+ /*FIXME: test auf scratchreg*/
+ if(q->reg>MAXR){
+ emit(f,"\tmov\t%s,[%s+]\n",regnames[rp.r1],regnames[l]);
+ emit(f,"\tmov\t%s,[%s]\n",regnames[rp.r2],regnames[l]);
+ }else{
+ emit(f,"\tmov\t%s,[%s]\n",regnames[rp.r1],regnames[l]);
+ emit(f,"\tmov\t%s,[%s+#2]\n",regnames[rp.r2],regnames[l]);
+ }
+ if(tmp) emit(f,"\tmov\t%s,%s\n",regnames[tmp],regnames[rp.r1]);
+ return;
+ }else if(q->flags&VARADR){
+ q->flags&=~VARADR;
+ emit(f,"\tmov\t%s,#",regnames[rp.r1]);emit_obj(f,q,t);emit(f,"\n");
+ emit(f,"\tmov\t%s,#SEG ",regnames[rp.r2]);isseg=1;emit_obj(f,q,t);emit(f,"\n");
+ q->flags|=VARADR;
+ return;
+ }else if((q->flags&(KONST|DREFOBJ))==KONST){
+ long l2;
+ if(ISFLOAT(t)) ierror(0);
+ eval_const(&q->val,t);
+ l=zm2zl(zmand(vmax,l2zm(65535L)));
+ emit(f,"\tmov\t%s,#%ld\n",regnames[rp.r1],l);
+ l2=zm2l(zmrshift(vmax,l2zm(16L)));
+ if(l2==l) emit(f,"\tmov\t%s,%s\n",regnames[rp.r2],regnames[rp.r1]);
+ else emit(f,"\tmov\t%s,#%ld\n",regnames[rp.r2],l2);
+ return;
+ }else if(qr){
+ if(!reg_pair(qr,&qp)) ierror(0);
+ emit(f,"\tmov\t%s,%s\n",regnames[rp.r1],regnames[qp.r1]);
+ emit(f,"\tmov\t%s,%s\n",regnames[rp.r2],regnames[qp.r2]);
+ return;
+ }else{
+ if(!(q->flags&VAR)) ierror(0);
+ if(q->v->storage_class==AUTO||q->v->storage_class==REGISTER){
+ l=voff(q);
+ if(l)
+ emit(f,"\tmov\t%s,[%s+#%ld]\n",regnames[rp.r1],regnames[sp],l);
+ else
+ emit(f,"\tmov\t%s,[%s]\n",regnames[rp.r1],regnames[sp]);
+ emit(f,"\tmov\t%s,[%s+#%ld]\n",regnames[rp.r2],regnames[sp],l+2);
+ return;
+ }else{
+ emit(f,"\tmov\t%s,",regnames[rp.r1]);emit_obj(f,q,t);emit(f,"\n");
+ emit(f,"\tmov\t%s,",regnames[rp.r2]);emit_obj(f,q,t);emit(f,"+2\n");
+ return;
+ }
+ }
+ ierror(0);
+ }else{
+ emit(f,"\tmov%s\t%s,",x_t[t&NQ],(t==CHAR?bregnames[zr]:regnames[zr]));
+ if(qr&&t==CHAR)
+ emit(f,"%s",bregnames[qr]);
+ else if(!q->am&&(q->flags&(REG|DREFOBJ))==(REG|DREFOBJ)&®_pair(q->reg,&rp))
+ emit(f,"[%s]",regnames[rp.SOF]);
+ else
+ emit_obj(f,q,t);
+ emit(f,"\n");
+ return;
+ }
+ }
+ if(z){
+ if(!qr) ierror(0);
+ if(z->am&®_pair(z->am->base,&rp)){
+ l=rp.SOF;
+ if(qr>16)
+ emit(f,"\texts\t%s,#2\n",regnames[rp.SEG]);
+ else
+ emit(f,"\texts\t%s,#1\n",regnames[rp.SEG]);
+ }else if((z->flags&DREFOBJ)&®_pair(z->reg,&rp)){
+ l=rp.SOF;
+ if(qr>16)
+ emit(f,"\texts\t%s,#2\n",regnames[rp.SEG]);
+ else
+ emit(f,"\texts\t%s,#1\n",regnames[rp.SEG]);
+ }else if((z->flags&(VAR|REG|VARADR))==VAR&&ISSTATIC(z->v)&&ISFAR(z->v)){
+ emit(f,"\texts\t#SEG ");
+ isseg=1;emit_obj(f,z,INT);
+ if(qr>16)
+ emit(f,",#2\n");
+ else
+ emit(f,",#1\n");
+ }
+ if(reg_pair(qr,&rp)){
+ if(z->am){
+ emit(f,"\tmov\t");emit_obj(f,z,t);emit(f,",%s\n",regnames[rp.r1]);
+ z->am->offset+=2;
+ emit(f,"\tmov\t");emit_obj(f,z,t);emit(f,",%s\n",regnames[rp.r2]);
+ z->am->offset-=2;
+ return;
+ }else if(z->flags&DREFOBJ){
+ if(!(z->flags®)) ierror(0);
+ if(!l) l=z->reg;
+ /*FIXME: test auf scratchreg statt >MAXR*/
+ if(z->reg>MAXR&&l!=rp.r2){
+ emit(f,"\tmov\t[%s+],%s\n",regnames[l],regnames[rp.r1]);
+ emit(f,"\tmov\t[%s],%s\n",regnames[l],regnames[rp.r2]);
+ }else{
+ emit(f,"\tmov\t[%s],%s\n",regnames[l],regnames[rp.r1]);
+ emit(f,"\tmov\t[%s+#2],%s\n",regnames[l],regnames[rp.r2]);
+ }
+ return;
+ }else if(zr){
+ if(!reg_pair(zr,&qp)) ierror(0);
+ emit(f,"\tmov\t%s,%s\n",regnames[qp.r1],regnames[rp.r1]);
+ emit(f,"\tmov\t%s,%s\n",regnames[qp.r2],regnames[rp.r2]);
+ return;
+ }else{
+ if(!(z->flags&VAR)) ierror(0);
+ if(z->v->storage_class==AUTO||z->v->storage_class==REGISTER){
+ l=voff(z);
+ if(l)
+ emit(f,"\tmov\t[%s+#%ld],%s\n",regnames[sp],l,regnames[rp.r1]);
+ else
+ emit(f,"\tmov\t[%s],%s\n",regnames[sp],regnames[rp.r1]);
+ emit(f,"\tmov\t[%s+#%ld],%s\n",regnames[sp],l+2,regnames[rp.r2]);
+ return;
+ }else{
+ emit(f,"\tmov\t");emit_obj(f,z,t);emit(f,",%s\n",regnames[rp.r1]);
+ emit(f,"\tmov\t");emit_obj(f,z,t);emit(f,"+2,%s\n",regnames[rp.r2]);
+ return;
+ }
+ }
+ ierror(0);
+ }else{
+ emit(f,"\tmov%s\t",x_t[t&NQ]);
+ if(!z->am&&(z->flags&(REG|DREFOBJ))==(REG|DREFOBJ)&®_pair(z->reg,&rp))
+ emit(f,"[%s]",regnames[rp.SOF]);
+ else if(zr&&t==CHAR)
+ emit(f,"%s",bregnames[zr]);
+ else
+ emit_obj(f,z,t);
+ emit(f,",%s\n",((t==CHAR)?bregnames[qr]:regnames[qr]));
+ return;
+ }
+ }
+ /*reg->reg*/
+ if(t==CHAR){
+ emit(f,"\tmovb\t%s,%s\n",bregnames[zr],bregnames[qr]);
+ }else if(ISLWORD(t)){
+ if(!reg_pair(qr,&qp)) ierror(0);
+ if(!reg_pair(zr,&rp)) ierror(0);
+ emit(f,"\tmov\t%s,%s\n",regnames[rp.r1],regnames[qp.r1]);
+ emit(f,"\tmov\t%s,%s\n",regnames[rp.r2],regnames[qp.r2]);
+ }else{
+ emit(f,"\tmov\t%s,%s\n",regnames[zr],regnames[qr]);
+ }
+}
+
+static int get_reg(FILE *f,struct IC *p)
+{
+ int i;
+ for(i=1;i<=16;i++){
+ if(!regs[i]&®scratch[i]){
+ BSET(regs_modified,i);
+ return i;
+ }
+ }
+ ierror(0);
+}
+
+static void save_result(FILE *f,int r,struct IC *p,int t)
+/* Saves result in register r to object o. May use tp or ti. */
+{
+ if((p->z.flags&(REG|DREFOBJ))==DREFOBJ){
+ BSET(regs_modified,tp);
+ if(ISLWORD(p->z.dtyp)){
+ if(!ti2_used) tmp4=ti2; else tmp4=get_reg(f,p);
+ BSET(regs_modified,tmp3);
+ tmp3=tp;
+ p->z.flags&=~DREFOBJ;
+ move(f,&p->z,0,0,MTMP2,FPOINTER);
+ p->z.flags=(DREFOBJ|REG);
+ p->z.reg=MTMP2;
+ }else if(!(p->z.flags&KONST)){
+ int tmp=(r==tp)?ti:tp;
+ BSET(regs_modified,tmp);
+ p->z.flags&=~DREFOBJ;
+ move(f,&p->z,0,0,tmp,NPOINTER);
+ p->z.flags=(DREFOBJ|REG);
+ p->z.reg=tmp;
+ }
+ }
+ move(f,0,r,&p->z,0,t);
+}
+
+static int scratchreg(int r,struct IC *p)
+{
+ int c;
+ if(r==tp||r==ti||r==ti2||r==MTMP1||r==MTMP2)
+ return 1;
+ while(1){
+ p=p->next;
+ if(!p||((c=p->code)==FREEREG&&p->q1.reg==r)) return 1;
+ if(c==CALL||(c>=BEQ&&c<=BRA)) return 0;
+ if((p->q1.flags®)&&p->q1.reg==r) return 0;
+ if((p->q2.flags®)&&p->q2.reg==r) return 0;
+ if((p->z.flags®)&&p->z.reg==r) return 0;
+ }
+}
+
+static char *longcmd(char *s)
+{
+ if(!strcmp(s,"add")) return "addc";
+ if(!strcmp(s,"sub")) return "subc";
+ /*FIXME*/
+ return s;
+}
+
+/* perform long arithmetic using library functions */
+/* the functions take arguments in r4/r5 and r10/r11 */
+/* giving the result in r4/r5 */
+/* returns , if the operation was performed, 0 if */
+/* the IC should be handled by inline-code */
+static int lib_larith(FILE *f,struct IC *p)
+{
+ int r4p,r5p,c=p->code,t=ztyp(p);char *s;
+ if(regs[r4]&&(!isreg(z)||p->z.reg==r4r5)){
+ emit(f,"\tmov\t[-%s],%s\n",regnames[sp],regnames[r4]);
+ push(2,0);
+ r4p=1;
+ }else
+ r4p=0;
+ if(regs[r5]&&(!isreg(z)||p->z.reg==r4r5)){
+ emit(f,"\tmov\t[-%s],%s\n",regnames[sp],regnames[r5]);
+ push(2,0);
+ r5p=1;
+ }else
+ r5p=0;
+ if(!p->q1.am&&(p->q1.flags&DREFOBJ)){
+ if(!(p->q1.flags&(REG))){
+ if(ISLWORD(p->q1.dtyp)){
+ tmp3=ti2;tmp4=ti;ti2_used=1;
+ BSET(regs_modified,ti);
+ BSET(regs_modified,ti2);
+ p->q1.flags&=~DREFOBJ;
+ move(f,&p->q1,0,0,MTMP2,FPOINTER);
+ p->q1.reg=MTMP2;
+ p->q1.flags=(REG|DREFOBJ);
+ }else if(!(p->q1.flags&KONST)){
+ BSET(regs_modified,ti);
+ p->q1.flags&=~DREFOBJ;
+ move(f,&p->q1,0,0,ti,NPOINTER);
+ p->q1.reg=ti;
+ p->q1.flags=(REG|DREFOBJ);
+ }
+ }
+ }
+ BSET(regs_modified,r4r5);
+ move(f,&p->q1,0,0,r4r5,q1typ(p));
+ if(!p->q2.am&&(p->q2.flags&DREFOBJ)){
+ if(!(p->q2.flags&(REG))){
+ if(ISLWORD(p->q2.dtyp)){
+ BSET(regs_modified,ti);
+ BSET(regs_modified,ti2);
+ tmp3=ti2;tmp4=ti;ti2_used=1;
+ p->q2.flags&=~DREFOBJ;
+ move(f,&p->q2,0,0,MTMP2,FPOINTER);
+ p->q2.reg=MTMP2;
+ p->q2.flags=(REG|DREFOBJ);
+ }else if(!(p->q2.flags&KONST)){
+ BSET(regs_modified,ti);
+ p->q2.flags&=~DREFOBJ;
+ move(f,&p->q2,0,0,ti,NPOINTER);
+ p->q2.reg=ti;
+ p->q2.flags=(REG|DREFOBJ);
+ }
+ }
+ }
+ /* ti/ti2 must be r10/r11 */
+ tmp3=ti;tmp4=ti2;ti2_used=1;
+ BSET(regs_modified,ti);
+ BSET(regs_modified,ti2);
+ move(f,&p->q2,0,0,MTMP2,q2typ(p));
+ if(c==MULT)
+ s="_mul";
+ else if(c==DIV&&(t&UNSIGNED))
+ s="_udil";
+ else if(c==DIV&&!(t&UNSIGNED))
+ s="_sdil";
+ else if(c==MOD&&(t&UNSIGNED))
+ s="_umol";
+ else if(c==MOD&&!(t&UNSIGNED))
+ s="_smol";
+ else
+ ierror(0);
+ if(TASKING){
+ emit(f,"\textern\t%s%s:%s\n",idprefix,s,TINY?"near":"far");
+ emit(f,"\t%s\t%s%s\n",call,idprefix,s);
+ }
+ save_result(f,r4r5,p,ztyp(p));
+ if(r5p){
+ emit(f,"\tmov\t%s,[%s+]\n",regnames[r5],regnames[sp]);
+ pop(2,0);
+ }
+ if(r4p){
+ emit(f,"\tmov\t%s,[%s+]\n",regnames[r4],regnames[sp]);
+ pop(2,0);
+ }
+ return 1;
+}
+
+/****************************************/
+/* End of private fata and functions. */
+/****************************************/
+
+int emit_peephole(void)
+{
+ int entries,i;long x,y,z;
+ char *asmline[EMIT_BUF_DEPTH];
+ i=emit_l;
+ if(emit_f==0)
+ entries=i-emit_f+1;
+ else
+ entries=EMIT_BUF_DEPTH;
+ asmline[0]=emit_buffer[i];
+ if(entries>=1){
+ if(sscanf(asmline[0],"\tshl\tR%ld,#%ld\n",&x,&y)==2&&(y<0||y>15)){
+ sprintf(asmline[0],"\tmov\tR%ld,#0\n",x);
+ return 1;
+ }
+ if(sscanf(asmline[0],"\tshr\tR%ld,#%ld\n",&x,&y)==2&&(y<0||y>15)){
+ sprintf(asmline[0],"\tmov\tR%ld,#0\n",x);
+ return 1;
+ }
+ }
+ if(entries>=2){
+ i--;
+ if(i<0) i=EMIT_BUF_DEPTH-1;
+ asmline[1]=emit_buffer[i];
+ if(sscanf(asmline[0],"\tadd\tR0,#%ld",&x)==1&&sscanf(asmline[1],"\tadd\tR0,#%ld",&y)==1){
+ sprintf(asmline[1],"\tadd\tR0,#%ld\n",x+y);
+ remove_asm();
+ return 1;
+ }
+ if(sscanf(asmline[1],"\tmov\tR11,#%ld",&x)==1&&sscanf(asmline[0],"\texts\tR11,#%ld",&y)==1){
+ sprintf(asmline[1],"\texts\t#%ld,#%ld\n",x,y);
+ remove_asm();
+ return 1;
+ }
+ }
+ if(entries>=3){
+ i--;
+ if(i<0) i=EMIT_BUF_DEPTH-1;
+ asmline[2]=emit_buffer[i];
+ if(sscanf(asmline[2],"\tmov\tR1,#%ld",&x)==1&&sscanf(asmline[1],"\texts\t#%ld,#1",&y)==1&&sscanf(asmline[0],"\tmov\t[R1],R%ld",&z)==1){
+ strcpy(asmline[2],asmline[1]);
+ sprintf(asmline[1],"\tmov\t%ld,R%ld\n",x,z);
+ remove_asm();
+ return 1;
+ }
+ }
+ return 0;
+}
+
+int init_cg(void)
+/* Does necessary initializations for the code-generator. Gets called */
+/* once at the beginning and should return 0 in case of problems. */
+{
+ int i;
+ /* Initialize some values which cannot be statically initialized */
+ /* because they are stored in the target's arithmetic. */
+ maxalign=l2zm(2L);
+ char_bit=l2zm(8L);
+ for(i=0;i<=MAX_TYPE;i++){
+ sizetab[i]=l2zm(msizetab[i]);
+ align[i]=l2zm(malign[i]);
+ }
+ for(i=1;i<=MAXR;i++){
+ if(i<=16){
+ regsize[i]=l2zm(2L);regtype[i]=&ityp;
+ }else{
+ regsize[i]=l2zm(4L);regtype[i]=<yp;
+ }
+ }
+
+ /* Initialize the min/max-settings. Note that the types of the */
+ /* host system may be different from the target system and you may */
+ /* only use the smallest maximum values ANSI guarantees if you */
+ /* want to be portable. */
+ /* That's the reason for the subtraction in t_min[INT]. Long could */
+ /* be unable to represent -2147483648 on the host system. */
+ t_min[CHAR]=l2zm(-128L);
+ t_min[SHORT]=l2zm(-32768L);
+ t_min[INT]=t_min[SHORT];
+ t_min[LONG]=zmsub(l2zm(-2147483647L),l2zm(1L));
+ t_min[LLONG]=zmlshift(l2zm(1L),l2zm(63L));
+ t_min[MAXINT]=t_min(LLONG);
+ t_max[CHAR]=ul2zum(127L);
+ t_max[SHORT]=ul2zum(32767UL);
+ t_max[INT]=t_max[SHORT];
+ t_max[LONG]=ul2zum(2147483647UL);
+ t_max[LLONG]=zumrshift(zumkompl(ul2zum(0UL)),ul2zum(1UL));
+ t_max[MAXINT]=t_max(LLONG);
+ tu_max[CHAR]=ul2zum(255UL);
+ tu_max[SHORT]=ul2zum(65535UL);
+ tu_max[INT]=tu_max[SHORT];
+ tu_max[LONG]=ul2zum(4294967295UL);
+ tu_max[LLONG]=zumkompl(ul2zum(0UL));
+ tu_max[MAXINT]=t_max(UNSIGNED|LLONG);
+
+ /* Reserve a few registers for use by the code-generator. */
+ regsa[sp]=regsa[tp]=regsa[ti]=regsa[ti2]=1;
+ regscratch[sp]=regscratch[tp]=regscratch[ti]=regscratch[ti2]=0;
+ target_macros=marray;
+ if(TINY) marray[0]="__TINY__";
+ else if(LARGE) marray[0]="__LARGE__";
+ else if(HUGE) marray[0]="__HUGE__";
+ else marray[0]="__MEDIUM__";
+
+ if(!TASKING){
+ codename="\t.section\t.text,\"carx1\"\n";
+ ndataname="\t.section\t.ndata,\"darw1\"\n";
+ fdataname="\t.section\t.fdata,\"darw1\"\n";
+ hdataname="\t.section\t.hdata,\"darw1\"\n";
+ nbssname="\t.section\t.nbss,\"uarw1\"\n";
+ fbssname="\t.section\t.fbss,\"uarw1\"\n";
+ hbssname="\t.section\t.hbss,\"uarw1\"\n";
+ ncdataname="\t.section\t.ncdata,\"dar1\"\n";
+ fcdataname="\t.section\t.fcdata,\"dar1\"\n";
+ hcdataname="\t.section\t.hcdata,\"dar1\"\n";
+ bitsname="\t.section\t.bits,\"darw0\"\n";
+ even="\t.align\t1\n";
+ public=".global";
+ comment="; ";
+ }
+
+ nvar.storage_class=STATIC;
+ fvar.storage_class=STATIC;
+
+
+ /* TODO: set argument registers */
+ declare_builtin("__mulint64",LLONG,LLONG,0,LLONG,0,1,0);
+ declare_builtin("__addint64",LLONG,LLONG,0,LLONG,0,1,0);
+ declare_builtin("__subint64",LLONG,LLONG,0,LLONG,0,1,0);
+ declare_builtin("__andint64",LLONG,LLONG,0,LLONG,0,1,0);
+ declare_builtin("__orint64",LLONG,LLONG,0,LLONG,0,1,0);
+ declare_builtin("__eorint64",LLONG,LLONG,0,LLONG,0,1,0);
+ declare_builtin("__negint64",LLONG,LLONG,0,0,0,1,0);
+ declare_builtin("__lslint64",LLONG,LLONG,0,INT,0,1,0);
+
+ declare_builtin("__divsint64",LLONG,LLONG,0,LLONG,0,1,0);
+ declare_builtin("__divuint64",UNSIGNED|LLONG,UNSIGNED|LLONG,0,UNSIGNED|LLONG,0,1,0);
+ declare_builtin("__modsint64",LLONG,LLONG,0,LLONG,0,1,0);
+ declare_builtin("__moduint64",UNSIGNED|LLONG,UNSIGNED|LLONG,0,UNSIGNED|LLONG,0,1,0);
+ declare_builtin("__lsrsint64",LLONG,LLONG,0,INT,0,1,0);
+ declare_builtin("__lsruint64",UNSIGNED|LLONG,UNSIGNED|LLONG,0,INT,0,1,0);
+ declare_builtin("__cmpsint64",INT,LLONG,0,LLONG,0,1,0);
+ declare_builtin("__cmpuint64",INT,UNSIGNED|LLONG,0,UNSIGNED|LLONG,0,1,0);
+ declare_builtin("__sint64toflt32",FLOAT,LLONG,0,0,0,1,0);
+ declare_builtin("__uint64toflt32",FLOAT,UNSIGNED|LLONG,0,0,0,1,0);
+ declare_builtin("__sint64toflt64",DOUBLE,LLONG,0,0,0,1,0);
+ declare_builtin("__uint64toflt64",DOUBLE,UNSIGNED|LLONG,0,0,0,1,0);
+ declare_builtin("__flt32tosint64",LLONG,FLOAT,0,0,0,1,0);
+ declare_builtin("__flt32touint64",UNSIGNED|LLONG,FLOAT,0,0,0,1,0);
+ declare_builtin("__flt64tosint64",LLONG,DOUBLE,0,0,0,1,0);
+ declare_builtin("__flt64touint64",UNSIGNED|LLONG,DOUBLE,0,0,0,1,0);
+
+ declare_builtin("__flt32toflt64",DOUBLE,FLOAT,0,0,0,1,0);
+ declare_builtin("__flt64toflt32",FLOAT,DOUBLE,0,0,0,1,0);
+
+
+ declare_builtin("__addflt32",FLOAT,FLOAT,0,FLOAT,0,1,0);
+ declare_builtin("__subflt32",FLOAT,FLOAT,0,FLOAT,0,1,0);
+ declare_builtin("__mulflt32",FLOAT,FLOAT,0,FLOAT,0,1,0);
+ declare_builtin("__divflt32",FLOAT,FLOAT,0,FLOAT,0,1,0);
+ declare_builtin("__negflt32",FLOAT,FLOAT,0,FLOAT,0,1,0);
+ declare_builtin("__cmpflt32",INT,FLOAT,0,FLOAT,0,1,0);
+
+ declare_builtin("__addflt64",DOUBLE,DOUBLE,0,DOUBLE,0,1,0);
+ declare_builtin("__subflt64",DOUBLE,DOUBLE,0,DOUBLE,0,1,0);
+ declare_builtin("__mulflt64",DOUBLE,DOUBLE,0,DOUBLE,0,1,0);
+ declare_builtin("__divflt64",DOUBLE,DOUBLE,0,DOUBLE,0,1,0);
+ declare_builtin("__negflt64",DOUBLE,DOUBLE,0,DOUBLE,0,1,0);
+ declare_builtin("__cmpflt64",INT,DOUBLE,0,DOUBLE,0,1,0);
+
+ return 1;
+}
+
+int freturn(struct Typ *t)
+/* Returns the register in which variables of type t are returned. */
+/* If the value cannot be returned in a register returns 0. */
+{
+ int f=t->flags&NQ;
+ if(f==LLONG||f==DOUBLE||f==LDOUBLE)
+ return 0;
+ if(ISSCALAR(f)){
+ if(f==LONG||f==FPOINTER||f==HPOINTER)
+ return 20;
+ else
+ return 5;
+ }
+ return 0;
+}
+
+int regok(int r,int t,int mode)
+/* Returns 0 if register r cannot store variables of */
+/* type t. If t==POINTER and mode!=0 then it returns */
+/* non-zero only if the register can store a pointer */
+/* and dereference a pointer to mode. */
+{
+ t&=NQ;
+ if(r==0) return(0);
+ if(mode>0&&!ISPOINTER(t)) return 0;
+ if(t==NPOINTER&&mode>0){
+ if(r<=4) return 1; else return 0;
+ }
+ if(t<=CHAR&&r>8) return 0;
+ if((t<LONG||t==NPOINTER)&&r<=16) return 1;
+ if(t==LONG||t==FLOAT||t==FPOINTER||t==HPOINTER){
+ if(r>16) return 1;
+ }
+ return 0;
+}
+
+int reg_pair(int r,struct rpair *p)
+/* Returns 0 if the register is no register pair. If r */
+/* is a register pair non-zero will be returned and the */
+/* structure pointed to p will be filled with the two */
+/* elements. */
+{
+ if(r<=16) return 0;
+ if(p){
+ switch(r){
+ case 17: p->r1=7;p->r2=8;break;
+ case 18: p->r1=8;p->r2=9;break;
+ case 19: p->r1=9;p->r2=10;break;
+ case 20: p->r1=5;p->r2=6;break;
+ case 21: p->r1=15;p->r2=16;break;
+ case 22: p->r1=14;p->r2=15;break;
+ case 23: p->r1=13;p->r2=14;break;
+ case 24: p->r1=4;p->r2=5;break;
+ case 25: p->r1=3;p->r2=4;break;
+
+ /* pseudos */
+ case MTMP1: p->r1=tmp1;p->r2=tmp2;break;
+ case MTMP2: p->r1=tmp3;p->r2=tmp4;break;
+ case ZEROS: return 0;
+ case ONES: return 0;
+ default: ierror(0);
+ }
+ }
+ return 1;
+}
+
+int cost_savings(struct IC *p,int r,struct obj *o)
+{
+ int c=p->code;
+ if((o->flags&DREFOBJ)){
+ if(o->flags&VKONST) return 1;
+ if(r<=4&&p->q2.flags&&o!=&p->z)
+ return 6;
+ else
+ return 4;
+ }else if(o->flags&VKONST){
+ struct obj *co=&o->v->cobj;
+ if((p->code==ASSIGN&&(p->z.flags&DREFOBJ))||p->code==PUSH)
+ return 4;
+ if(co->flags&VARADR)
+ return 4;
+ if(o==&p->q1)
+ eval_const(&co->val,q1typ(p));
+ else
+ eval_const(&co->val,q2typ(p));
+ /*FIXME*/
+ return 0;
+ }else if(c==GETRETURN&&p->q1.reg==r){
+ return 4;
+ }else if(c==SETRETURN&&p->z.reg==r){
+ return 4;
+ }else if(c==CONVERT&&((p->typf&NQ)==CHAR||(p->typf2&NQ)==CHAR)&®ok(r,CHAR,0)){
+ return 3;
+ }
+ return 2;
+}
+
+int dangerous_IC(struct IC *p)
+/* Returns zero if the IC p can be safely executed */
+/* without danger of exceptions or similar things. */
+/* vbcc may generate code in which non-dangerous ICs */
+/* are sometimes executed although control-flow may */
+/* never reach them (mainly when moving computations */
+/* out of loops). */
+/* Typical ICs that generate exceptions on some */
+/* machines are: */
+/* - accesses via pointers */
+/* - division/modulo */
+/* - overflow on signed integer/floats */
+{
+ int c=p->code;
+ if((p->q1.flags&DREFOBJ)||(p->q2.flags&DREFOBJ)||(p->z.flags&DREFOBJ))
+ return 1;
+ if((c==DIV||c==MOD)&&!isconst(q2))
+ return 1;
+ return 0;
+}
+
+int must_convert(int o,int t,int const_expr)
+/* Returns zero if code for converting np to type t */
+/* can be omitted. */
+/* In this generic 32bit RISC cpu pointers and 32bit */
+/* integers have the same representation and can use */
+/* the same registers. */
+{
+ int op=o&NQ,tp=t&NQ;
+ if(op==tp) return 0;
+ if(ISHWORD(op)&&ISHWORD(tp)) return 0;
+ if(ISFLOAT(op)||ISFLOAT(tp)) return 1;
+ if(ISLWORD(op)&&ISLWORD(tp)) return 0;
+ return 1;
+}
+
+void gen_ds(FILE *f,zmax size,struct Typ *t)
+/* This function has to create <size> bytes of storage */
+/* initialized with zero. */
+{
+#if 0
+ emit(f,"\tds\t%ld\n",zm2l(size));
+#endif
+ /*FIXME: we currently do not use ds because of initialization */
+ long l=zm2l(size);
+ if(TASKING){
+ if(t&&(t->flags&NQ)==BIT){
+ emit(f,"\tdbit\n");
+ return;
+ }
+ /*FIXME:alignment while(size>=4) {emit(f,"\tddw\t0\n");size-=4;}*/
+ while(size--) emit(f,"\tdb\t0\n");
+ }else{
+ if(newobj&§ion!=SPECIAL)
+ emit(f,"%ld\n",zm2l(size));
+ else
+ emit(f,"\t.space\t%ld\n",zm2l(size));
+ newobj=0;
+ }
+}
+
+void gen_align(FILE *f,zmax align)
+/* This function has to make sure the next data is */
+/* aligned to multiples of <align> bytes. */
+{
+ if(section!=BITS&&!zmleq(align,l2zm(1L)))
+ emit(f,even);
+}
+static void new_section(FILE *f,int nsec)
+{
+ if(!f||section==nsec) return;
+ if(TASKING)
+ emit(f,sec_end);
+ section=nsec;
+ if(nsec==HDATA){
+ emit(f,hdataname);
+ strcpy(sec_end,ehdata);
+ }else if(nsec==FDATA){
+ emit(f,fdataname);
+ strcpy(sec_end,efdata);
+ }else if(nsec==NDATA){
+ emit(f,ndataname);
+ strcpy(sec_end,endata);
+ }else if(nsec==HCDATA){
+ emit(f,hcdataname);
+ strcpy(sec_end,ehcdata);
+ }else if(nsec==FCDATA){
+ emit(f,fcdataname);
+ strcpy(sec_end,efcdata);
+ }else if(nsec==NCDATA){
+ emit(f,ncdataname);
+ strcpy(sec_end,encdata);
+ }else if(nsec==HBSS){
+ emit(f,hbssname);
+ strcpy(sec_end,ehbss);
+ }else if(nsec==FBSS){
+ emit(f,fbssname);
+ strcpy(sec_end,efbss);
+ }else if(nsec==NBSS){
+ emit(f,nbssname);
+ strcpy(sec_end,enbss);
+ }else if(nsec==BITS){
+ emit(f,bitsname);
+ strcpy(sec_end,ebits);
+ }
+}
+void gen_var_head(FILE *f,struct Var *v)
+/* This function has to create the head of a variable */
+/* definition, i.e. the label and information for */
+/* linkage etc. */
+{
+ int constflag;
+ char *attr;struct Typ *tv;
+ tv=v->vtyp;
+ while(tv->flags==ARRAY) tv=tv->next;
+ attr=tv->attr;
+ if(v->clist) constflag=is_const(v->vtyp);
+ if(v->storage_class==STATIC){
+ if(ISFUNC(v->vtyp->flags)) return;
+ if(!TASKING){
+ emit(f,"\t.type\t%s%ld,@object\n",labprefix,zm2l(v->offset));
+ emit(f,"\t.size\t%s%ld,%ld\n",labprefix,zm2l(v->offset),zm2l(szof(v->vtyp)));
+ }
+ if(!special_section(f,v)){
+ if((v->vtyp->flags&NQ)==BIT){
+ new_section(f,BITS);
+ }else{
+ if(v->clist&&(!constflag||(g_flags[3]&USEDFLAG))){
+ if(attr&&strstr(attr,STR_HUGE))
+ new_section(f,HDATA);
+ else if(attr&&strstr(attr,STR_FAR))
+ new_section(f,FDATA);
+ else if(attr&&strstr(attr,STR_NEAR))
+ new_section(f,NDATA);
+ else{
+ if(HUGE)
+ new_section(f,HDATA);
+ else if(LARGE)
+ new_section(f,FDATA);
+ else
+ new_section(f,NDATA);
+ }
+ }
+ if(v->clist&&constflag&&!(g_flags[3]&USEDFLAG)){
+ if(attr&&strstr(attr,STR_HUGE))
+ new_section(f,HCDATA);
+ else if(attr&&strstr(attr,STR_FAR))
+ new_section(f,FCDATA);
+ else if(attr&&strstr(attr,STR_NEAR))
+ new_section(f,NCDATA);
+ else{
+ if(HUGE)
+ new_section(f,HCDATA);
+ else if(LARGE)
+ new_section(f,FCDATA);
+ else
+ new_section(f,NCDATA);
+ }
+ }
+ if(!v->clist){
+ if(attr&&strstr(attr,STR_HUGE))
+ new_section(f,HBSS);
+ else if(attr&&strstr(attr,STR_FAR))
+ new_section(f,FBSS);
+ else if(attr&&strstr(attr,STR_NEAR))
+ new_section(f,NBSS);
+ else{
+ if(HUGE)
+ new_section(f,HBSS);
+ else if(LARGE)
+ new_section(f,FBSS);
+ else
+ new_section(f,NBSS);
+ }
+ }
+ }
+ }
+ gen_align(f,falign(v->vtyp));
+ if(TASKING){
+ emit(f,"%s%ld\tlabel\t",labprefix,zm2l(v->offset));
+ emit_label_type(f,v);
+ emit(f,"\n");
+ }else{
+ if(dppuse(v,section)>=0)
+ emit(f,"\t.set\t%s%s%ld,%d\n",dppprefix,labprefix,zm2l(v->offset),dppuse(v,section));
+ emit(f,"%s%ld:\n",labprefix,zm2l(v->offset));
+ }
+ }
+ if(v->storage_class==EXTERN){
+ if(v->flags&(DEFINED|TENTATIVE)){
+ if(!TASKING){
+ emit(f,"\t.type\t%s%s,@object\n",idprefix,v->identifier);
+ emit(f,"\t.size\t%s%s,%ld\n",idprefix,v->identifier,zm2l(szof(v->vtyp)));
+ }
+ emit(f,"\t%s\t%s%s\n",public,idprefix,v->identifier);
+ if(!special_section(f,v)){
+ if((v->vtyp->flags&NQ)==BIT){
+ if(f&§ion!=BITS){
+ if(TASKING)
+ emit(f,sec_end);
+ strcpy(sec_end,ebits);
+ emit(f,bitsname);
+ section=BITS;
+ }
+ }else{
+ if(v->clist&&(!constflag||(g_flags[3]&USEDFLAG))){
+ if(attr&&strstr(attr,STR_HUGE))
+ new_section(f,HDATA);
+ else if(attr&&strstr(attr,STR_FAR))
+ new_section(f,FDATA);
+ else if(attr&&strstr(attr,STR_NEAR))
+ new_section(f,NDATA);
+ else{
+ if(HUGE)
+ new_section(f,HDATA);
+ else if(LARGE)
+ new_section(f,FDATA);
+ else
+ new_section(f,NDATA);
+ }
+ }
+ if(v->clist&&constflag&&!(g_flags[3]&USEDFLAG)){
+ if(attr&&strstr(attr,STR_HUGE))
+ new_section(f,HCDATA);
+ else if(attr&&strstr(attr,STR_FAR))
+ new_section(f,FCDATA);
+ else if(attr&&strstr(attr,STR_NEAR))
+ new_section(f,NCDATA);
+ else{
+ if(HUGE)
+ new_section(f,HCDATA);
+ else if(LARGE)
+ new_section(f,FCDATA);
+ else
+ new_section(f,NCDATA);
+ }
+ }
+ if(!v->clist){
+ if(attr&&strstr(attr,STR_HUGE))
+ new_section(f,HBSS);
+ else if(attr&&strstr(attr,STR_FAR))
+ new_section(f,FBSS);
+ else if(attr&&strstr(attr,STR_NEAR))
+ new_section(f,NBSS);
+ else{
+ if(HUGE)
+ new_section(f,HBSS);
+ else if(LARGE)
+ new_section(f,FBSS);
+ else
+ new_section(f,NBSS);
+ }
+ }
+ }
+ }
+ gen_align(f,falign(v->vtyp));
+ if(TASKING){
+ emit(f,"%s%s\tlabel\t",idprefix,v->identifier);
+ emit_label_type(f,v);
+ emit(f,"\n");
+ }else{
+ if(dppuse(v,section)>=0){
+ emit(f,"\t.global\t%s%s%s\n",dppprefix,idprefix,v->identifier);
+ emit(f,"\t.set\t%s%s%s,%d\n",dppprefix,idprefix,v->identifier,dppuse(v,section));
+ }
+ emit(f,"%s%s:\n",idprefix,v->identifier);
+ }
+ }else if(strcmp(v->identifier,"__va_start")&&!issfrv(v)&&!isesfrv(v)&&!issfrbitv(v)&&!isesfrbitv(v)){
+ if(TASKING){
+ emit(f,"\textern\t%s%s:",idprefix,v->identifier);
+ emit_label_type(f,v);
+ emit(f,"\n");
+ }else{
+ emit(f,"\t.global\t%s%s\n",idprefix,v->identifier);
+ }
+ }
+ }
+}
+
+void gen_dc(FILE *f,int t,struct const_list *p)
+/* This function has to create static storage */
+/* initialized with const-list p. */
+{
+ if(ISPOINTER(t)){
+ if(p->tree)
+ emit(f,"\t%s\t",TASKING?dct[t&NQ]:vdct[t&NQ]);
+ if(ISLWORD(t))
+ t=UNSIGNED|LONG;
+ else
+ t=UNSIGNED|SHORT;
+ if(!p->tree)
+ emit(f,"\t%s\t",TASKING?dct[t&NQ]:vdct[t&NQ]);
+ }else{
+ emit(f,"\t%s\t",TASKING?dct[t&NQ]:vdct[t&NQ]);
+ }
+ if(!p->tree){
+ if(ISFLOAT(t)){
+ /* auch wieder nicht sehr schoen und IEEE noetig */
+ unsigned char *ip;
+
+ ip=(unsigned char *)&p->val.vdouble;
+ emit(f,"0x%02x%02x%02x%02x",ip[3],ip[2],ip[1],ip[0]);
+ if((t&NQ)==DOUBLE||(t&NQ)==LDOUBLE){
+ emit(f,",0x%02x%02x%02x%02x",ip[7],ip[6],ip[5],ip[4]);
+ }
+ }else{
+ if(ISLWORD(t)){
+ long l;
+ eval_const(&p->val,t);
+ l=zm2l(zmand(p->val.vmax,l2zm(65535L)));
+ emit(f,"%ld",l);
+ l=zm2l(zmand(zmrshift(p->val.vmax,l2zm(16L)),l2zm(65535L)));
+ emit(f,",%ld",l);
+ }else if((t&NQ)!=BIT)
+ /*FIXME: initialization of bits impossible */
+ emitval(f,&p->val,(t&NU)|UNSIGNED);
+ }
+ }else{
+ int m=p->tree->o.flags;
+ p->tree->o.flags&=~VARADR;
+ emit_obj(f,&p->tree->o,t&NU);
+ p->tree->o.flags=m;
+ }
+ emit(f,"\n");
+}
+
+/* The main code-generation routine. */
+/* f is the stream the code should be written to. */
+/* p is a pointer to a doubly linked list of ICs */
+/* containing the function body to generate code for. */
+/* v is a pointer to the function. */
+/* offset is the size of the stackframe the function */
+/* needs for local variables. */
+void gen_code(FILE *f,struct IC *p,struct Var *v,zmax offset)
+{
+ int c,t,lastcomp=0,reg,short_add,bit_reverse,need_return=0;
+ struct obj *bit_obj;char *bit_reg;
+ static int idone;
+ struct obj o,*cc=0;int cc_t;
+ struct IC *p2;
+ if(TINY){
+ ret="ret";
+ call="calla\tcc_uc,";
+ jump="jmpa\tcc_uc,";
+ }else{
+ ret="rets";
+ call="calls";
+ jump="jmps\t";
+ }
+ if(v->tattr&INTERRUPT)
+ ret="reti";
+ if(DEBUG&1) printf("gen_code()\n");
+ if(!v->fi) v->fi=new_fi();
+ v->fi->flags|=ALL_REGS;
+ if(f&&TASKING&&!idone){
+ emit(f,"$EXTEND\n");
+ emit(f,"$MODEL(SMALL)\n");
+ idone=1;
+ }
+ for(p2=p;p2;p2=p2->next) clear_ext_ic(&p2->ext);
+ if(!(g_flags[5]&USEDFLAG)){
+ peephole(p);
+ if(!frame_used) offset=l2zm(0L);
+ }
+ for(c=1;c<=15;c++) regs[c]=regsa[c];
+ regs[16]=0;
+ for(c=1;c<=MAXR;c++){
+ if(regscratch[c]&&(regsa[c]||regused[c])){
+ BSET(regs_modified,c);
+ }
+ }
+ loff=((zm2l(offset)+1)/2)*2;
+ function_top(f,v,loff);
+ usrstackoffset=sysstackoffset=notpopped=dontpop=usrmaxpushed=sysmaxpushed=0;
+ sysstack=usrstack=0;
+ for(;p;pr(f,p),p=p->next){
+ if((p->q1.flags&(KONST|DREFOBJ))==(KONST|DREFOBJ)){
+ p->q1.flags=VAR;
+ p->q1.v=ISLWORD(p->q1.dtyp)?&fvar:&nvar;
+ }
+ if((p->q2.flags&(KONST|DREFOBJ))==(KONST|DREFOBJ)){
+ p->q2.flags=VAR;
+ p->q2.v=ISLWORD(p->q2.dtyp)?&fvar:&nvar;
+ }
+ if((p->z.flags&(KONST|DREFOBJ))==(KONST|DREFOBJ)){
+ p->z.flags=VAR;
+ p->z.v=ISLWORD(p->z.dtyp)?&fvar:&nvar;
+ }
+ if(!TASKING){
+ int rn,rb;char *rs;
+ if(issfr(q1)){
+ rs=strstr(p->q1.v->vattr,"sfr(");
+ sscanf(rs+4,"%i",&rn);
+ if(rn<=255) rn=0xfe00+2*rn;
+ emit(f,"\t.sfr\t%s,%d\n",p->q1.v->identifier,rn);
+ }
+ if(issfr(q2)){
+ rs=strstr(p->q2.v->vattr,"sfr(");
+ sscanf(rs+4,"%i",&rn);
+ if(rn<=255) rn=0xfe00+2*rn;
+ emit(f,"\t.sfr\t%s,%d\n",p->q2.v->identifier,rn);
+ }
+ if(issfr(z)){
+ rs=strstr(p->z.v->vattr,"sfr(");
+ sscanf(rs+4,"%i",&rn);
+ if(rn<=255) rn=0xfe00+2*rn;
+ emit(f,"\t.sfr\t%s,%d\n",p->z.v->identifier,rn);
+ }
+ if(issfrbit(q1)){
+ rs=strstr(p->q1.v->vattr,"sfrbit(");
+ sscanf(rs+7,"%i,%i",&rn,&rb);
+ if(rn<=255) rn=0xfe00+2*rn;
+ emit(f,"\t.sfr\t%s,%d,%d\n",p->q1.v->identifier,rn,rb);
+ }
+ if(issfrbit(q2)){
+ rs=strstr(p->q2.v->vattr,"sfrbit(");
+ sscanf(rs+7,"%i,%i",&rn,&rb);
+ if(rn<=255) rn=0xfe00+2*rn;
+ emit(f,"\t.sfr\t%s,%d,%d\n",p->q2.v->identifier,rn,rb);
+ }
+ if(issfrbit(z)){
+ rs=strstr(p->z.v->vattr,"sfrbit(");
+ sscanf(rs+7,"%i,%i",&rn,&rb);
+ if(rn<=255) rn=0xfe00+2*rn;
+ emit(f,"\t.sfr\t%s,%d,%d\n",p->z.v->identifier,rn,rb);
+ }
+ if(isesfr(q1)){
+ rs=strstr(p->q1.v->vattr,"sfre(");
+ sscanf(rs+5,"%i",&rn);
+ if(rn<=255) rn=0xf000+2*rn;
+ emit(f,"\t.equ\t%s,%d\n",p->q1.v->identifier,rn);
+ }
+ if(isesfr(q2)){
+ rs=strstr(p->q2.v->vattr,"sfre(");
+ sscanf(rs+5,"%i",&rn);
+ if(rn<=255) rn=0xf000+2*rn;
+ emit(f,"\t.equ\t%s,%d\n",p->q2.v->identifier,rn);
+ }
+ if(isesfr(z)){
+ rs=strstr(p->z.v->vattr,"sfre(");
+ sscanf(rs+5,"%i",&rn);
+ if(rn<=255) rn=0xf000+2*rn;
+ emit(f,"\t.equ\t%s,%d\n",p->z.v->identifier,rn);
+ }
+ if(isesfrbit(q1)){
+ rs=strstr(p->q1.v->vattr,"sfrbite(");
+ sscanf(rs+8,"%i,%i",&rn,&rb);
+ if(rn<=255) rn=0xf000+2*rn;
+ emit(f,"\t.sfr\t%s,%d,%d\n",p->q1.v->identifier,rn,rb);
+ }
+ if(isesfrbit(q2)){
+ rs=strstr(p->q2.v->vattr,"sfrbite(");
+ sscanf(rs+8,"%i,%i",&rn,&rb);
+ if(rn<=255) rn=0xf000+2*rn;
+ emit(f,"\t.sfr\t%s,%d,%d\n",p->q2.v->identifier,rn,rb);
+ }
+ if(isesfrbit(z)){
+ rs=strstr(p->z.v->vattr,"sfrbite(");
+ sscanf(rs+8,"%i,%i",&rn,&rb);
+ if(rn<=255) rn=0xf000+2*rn;
+ emit(f,"\t.sfr\t%s,%d,%d\n",p->z.v->identifier,rn,rb);
+ }
+ }
+
+ c=p->code;t=p->typf;
+ ti2_used=0; short_add=0;
+ if(c==NOP) continue;
+ if(c==ALLOCREG){
+ regs[p->q1.reg]=1;
+ if(reg_pair(p->q1.reg,&rp)) regs[rp.r1]=regs[rp.r2]=1;
+ BSET(regs_modified,p->q1.reg);
+ continue;
+ }
+ if(c==FREEREG){
+ regs[p->q1.reg]=0;
+ if(reg_pair(p->q1.reg,&rp)) regs[rp.r1]=regs[rp.r2]=0;
+ continue;
+ }
+ if(notpopped&&!dontpop){
+ int flag=0;
+ if(c==LABEL||c==COMPARE||c==TEST||c==BRA){
+ emit(f,"\tadd\t%s,#%ld\n",regnames[sp],notpopped);
+ pop(notpopped,0);notpopped=0;cc=0;
+ }
+ }
+ if(c==LABEL) {cc=0;emit(f,"%s%d:\n",labprefix,t);continue;}
+ if(c>=BEQ&&c<=BGT&&t==exit_label) need_return=1;
+ if(c==BRA){
+ if(p->typf==exit_label&&!have_frame){
+ emit(f,"\t%s\n",ret);
+ }else{
+ if(t==exit_label) need_return=1;
+ emit(f,"\tjmpr\tcc_uc,%s%d\n",labprefix,t);
+ }
+ cc=0;continue;
+ }
+ if(c==BEQ||c==BNE){
+ if(p->ext.flags==EXT_IC_BTST){
+ if(bit_reg){
+ emit(f,"\tj%sb\t%s.%ld,%s%d\n",(c==BEQ)?"n":"",bit_reg,p->ext.offset,labprefix,t);
+ }else{
+ if(!bit_obj) ierror(0);
+ emit(f,"\tj%sb\t",(c==BEQ)?"n":"");
+ emit_obj(f,bit_obj,t);emit(f,".%ld,%s%d\n",p->ext.offset,labprefix,t);
+ }
+ }else if(lastcomp==BIT){
+ if(c==BEQ) bit_reverse=1-bit_reverse;
+ emit(f,"\tj%sb\t",(bit_reverse==1)?"n":"");
+ if(bit_obj)
+ emit_obj(f,bit_obj,t);
+ else
+ emit(f,"%s",bit_reg);
+ emit(f,",%s%d\n",labprefix,t);
+ }else
+ emit(f,"\tjmpr\tcc_%s,%s%d\n",ccs[c-BEQ],labprefix,t);
+ cc=0;continue;
+ }
+ if(c>BNE&&c<BRA){
+ if(p->ext.flags==EXT_IC_BTST||lastcomp==BIT) ierror(0);
+ if(lastcomp&UNSIGNED) emit(f,"\tjmpr\tcc_u%s,%s%d\n",ccs[c-BEQ],labprefix,t);
+ else emit(f,"\tjmpr\tcc_s%s,%s%d\n",ccs[c-BEQ],labprefix,t);
+ cc=0;continue;
+ }
+ if(c==MOVETOREG){
+ move(f,&p->q1,0,0,p->z.reg,SHORT);
+ cc=&p->q1;cc_t=SHORT;continue;
+ }
+ if(c==MOVEFROMREG){
+ move(f,0,p->q1.reg,&p->z,0,SHORT);
+ cc=&p->z;cc_t=SHORT;continue;
+ }
+
+ if((t&NQ)==DOUBLE) {pric2(stdout,p);ierror(0);}
+ if((t&NQ)==BIT){
+ cc=0;
+ if(c==ASSIGN){
+ if(!isreg(z)&&((p->z.flags&(VAR|REG|DREFOBJ|VARADR))!=VAR||!ISSTATIC(p->z.v))) ierror(0);
+ move(f,&p->q1,0,&p->z,0,t);
+ continue;
+ }
+ if(c==COMPARE){
+ if(!isconst(q2)){
+ if(!isreg(q2)&&((p->q2.flags&(VAR|REG|DREFOBJ|VARADR))!=VAR||!ISSTATIC(p->q2.v))) ierror(0);
+ bit_reg="PSW.1";bit_obj=0;lastcomp=BIT;bit_reverse=1;
+ if(isesfrbit(q1)){
+ if(!isesfrbit(q2)&&!isreg(q2)){
+ move(f,&p->q1,0,0,ti,t);
+ emit(f,"\tbcmp\t%s.0,",regnames[ti]);
+ emit_obj(f,&p->q2,t);emit(f,"\n");
+ continue;
+ }else
+ emit(f,"\textr\t#1\n");
+ }else if(isesfrbit(q2)){
+ if(!isreg(q1)){
+ move(f,&p->q2,0,0,ti,t);
+ emit(f,"\tbcmp\t");
+ emit_obj(f,&p->q1,t);
+ emit(f,",%s.0\n",regnames[ti]);
+ continue;
+ }else
+ emit(f,"\textr\t#1\n");
+ }
+ emit(f,"\tbcmp\t");emit_obj(f,&p->q1,t);
+ emit(f,",");emit_obj(f,&p->q2,t);emit(f,"\n");
+ }else{
+ bit_reg=0;bit_obj=&p->q1;lastcomp=BIT;
+ eval_const(&p->q2.val,t);
+ if(ISNULL())
+ bit_reverse=0;
+ else
+ bit_reverse=1;
+ if(isesfrbit(q1)) emit(f,"\textr\t#1\n");
+ }
+ continue;
+ }
+ if(c==TEST){
+ bit_reg=0;bit_obj=&p->q1;bit_reverse=0;lastcomp=BIT;
+ if(isesfrbit(q1)) emit(f,"\textr\t#1\n");
+ continue;
+ }
+ if(c==AND||c==OR||c==XOR){
+ char *s;
+ if(compare_objects(&p->z,&p->q2)){
+ struct obj m;
+ m=p->q1;p->q1=p->q2;p->q2=m;
+ }
+ if(!compare_objects(&p->q1,&p->z))
+ move(f,&p->q1,0,&p->z,0,t);
+ /*FIXME: const, esfr etc. */
+ if(c==AND) s="band";
+ else if(c==OR) s="bor";
+ else s="bxor";
+ if(isesfrbit(q2)&&!isesfrbit(z)&&!isreg(z)){
+ move(f,&p->q2,0,0,ti,t);
+ emit(f,"\t%s\t",s);
+ emit_obj(f,&p->z,t);
+ emit(f,",%s.0\n",regnames[ti]);
+ }else if(isesfrbit(z)&&!isesfrbit(q2)&&!isreg(q2)){
+ move(f,&p->q2,0,0,ti,t);
+ emit(f,"\textr\t#1\n");
+ emit(f,"\t%s\t",s);
+ emit_obj(f,&p->z,t);
+ emit(f,",%s.0\n",regnames[ti]);
+ }else{
+ if(isesfrbit(z)) emit(f,"\textr\t#1\n");
+ emit(f,"\t%s\t",s);
+ emit_obj(f,&p->z,t);emit(f,",");
+ emit_obj(f,&p->q2,t);emit(f,"\n");
+ }
+ continue;
+ }
+ if(c!=CONVERT) ierror(0);
+ }
+
+ if(c==TEST){
+ lastcomp=t;
+ if(p->ext.flags==EXT_IC_CMPIA){
+ if(p->ext.offset<0)
+ emit(f,"\tsub\t%s,#%ld\n",regnames[p->ext.r],-p->ext.offset);
+ else
+ emit(f,"\tadd\t%s,#%ld\n",regnames[p->ext.r],p->ext.offset);
+ cc=0;continue;
+ }
+ if(p->ext.flags==EXT_IC_CMPIB){
+ if(p->ext.offset<0)
+ emit(f,"\tcmpd%ld\t%s,#0\n",-p->ext.offset,regnames[p->ext.r]);
+ else
+ emit(f,"\tcmpi%ld\t%s,#0\n",p->ext.offset,regnames[p->ext.r]);
+ cc=0;continue;
+ }
+ if(cc&&(cc_t&NU)==(t&NU)&&compare_objects(cc,&p->q1)){
+ continue;
+ }
+ p->code=c=COMPARE;
+ gval.vmax=l2zm(0L);
+ p->q2.flags=KONST;
+ eval_const(&gval,MAXINT);
+ insert_const(&p->q2.val,t);
+ }
+ if(c==COMPARE&&isconst(q1)){
+ struct IC *p2;
+ o=p->q1;p->q1=p->q2;p->q2=o;
+ p2=p->next;
+ while(p2&&p2->code==FREEREG) p2=p2->next;
+ if(!p2||p2->code<BEQ||p2->code>BGT) ierror(0);
+ if(p2->code==BLT) p2->code=BGT;
+ else if(p2->code==BGT) p2->code=BLT;
+ else if(p2->code==BLE) p2->code=BGE;
+ else if(p2->code==BGE) p2->code=BLE;
+ }
+ if(c==COMPARE&&p->ext.flags==EXT_IC_CMPIA){
+ long l;
+ if(!isconst(q2)) ierror(0);
+ eval_const(&p->q2.val,t);
+ l=zm2l(vmax);
+ if(p->ext.offset<0)
+ emit(f,"\tcmpd%ld\t%s,#%ld\n",-p->ext.offset,regnames[p->ext.r],l-p->ext.offset);
+ else
+ emit(f,"\tcmpi%ld\t%s,#%ld\n",p->ext.offset,regnames[p->ext.r],l-p->ext.offset);
+ cc=0;lastcomp=t;continue;
+ }
+ if(c==COMPARE&&p->ext.flags==EXT_IC_CMPIB){
+pric2(stdout,p);
+ if(p->ext.offset<0)
+ emit(f,"\tcmpd%ld\t%s,",-p->ext.offset,regnames[p->ext.r]);
+ else
+ emit(f,"\tcmpi%ld\t%s,",p->ext.offset,regnames[p->ext.r]);
+ emit_obj(f,&p->q2,t);emit(f,"\n");
+ cc=0;lastcomp=t;continue;
+ }
+ if(c==COMPARE&&isconst(q2)){
+ eval_const(&p->q2.val,t);
+ if(ISNULL()){
+ if(cc&&(cc_t&NU)==(t&NU)&&compare_objects(cc,&p->q1)){
+ lastcomp=t;continue;
+ }
+ }
+ }
+
+ if(c==SUBPFP){
+ p->code=c=SUB;
+ if((p->typf2&NQ)==NPOINTER) p->typf=t=INT;
+ else if((p->typf2&NQ)==HPOINTER) p->typf=t=LONG;
+ else ierror(0);
+ if((p->typf2&NQ)==NPOINTER){
+ cc=&p->z;cc_t=NPOINTER;
+ }else{
+ cc=0;
+ }
+ }
+
+ if(c==ADDI2P||c==SUBIFP){
+ /*if(c==ADDI2P) p->code=c=ADD; else p->code=c=SUB;*/
+ if((p->typf2&NQ)!=HPOINTER){
+ p->typf=t=(UNSIGNED|SHORT);
+ short_add=2;
+ if(isreg(q2)&®_pair(p->q2.reg,&rp)){
+ /*FIXME:warning*/
+ p->q2.reg=rp.r1;
+ }
+ }else if(ISHWORD(t)){
+ p->typf=t=(UNSIGNED|LONG);
+ short_add=1;
+ }
+ if((p->typf2&NQ)==NPOINTER){
+ cc=&p->z;cc_t=NPOINTER;
+ }else{
+ cc=0;
+ }
+ }
+ /* try to avoid z==q2 */
+ if((c==ADD||c==AND||c==OR||c==XOR||(c==ADDI2P&&!short_add))&&compare_objects(&p->q2,&p->z)){
+ o=p->q1;p->q1=p->q2;p->q2=o;
+ }
+ /* DREFOBJs nach q2, um evtl. op reg,[ri] zu nutzen */
+ if(c==ADD||c==MULT||c==OR||c==AND||c==XOR){
+ if(isreg(q2)&&scratchreg(p->q2.reg,p)){
+ o=p->q1;p->q1=p->q2;p->q2=o;
+ }
+ if((p->q1.flags&DREFOBJ)&&(!(p->q1.flags®)||p->q1.reg<=4)&&(!p->q1.am||p->q1.am->flags!=IMM_IND)){
+ if(!((p->q2.flags&DREFOBJ)&&(!p->q2.am||p->q2.am->flags!=IMM_IND))){
+ struct obj o;
+ o=p->q1;p->q1=p->q2;p->q2=o;
+ }
+ }
+ }
+ /*FIXME: ICs mit mehreren Typen*/
+ if(switch_IC(p)&&isreg(z)){
+ reg=p->z.reg;
+ }else if(isreg(q1)&&(!ISLWORD(t)||reg_pair(p->q1.reg,&rp))&&(scratchreg(p->q1.reg,p)||(isreg(z)&&p->z.reg==p->q1.reg)||(!ISLWORD(t)&&c==COMPARE))){
+ reg=p->q1.reg;
+ }else{
+ if(ISLWORD(ztyp(p))){
+ tmp1=ti;tmp2=ti2;ti2_used=1;
+ BSET(regs_modified,ti);
+ BSET(regs_modified,ti2);
+ reg=MTMP1;
+ }else{
+ if((t&NQ)==CHAR){
+ BSET(regs_modified,tp);
+ reg=tp;
+ }else{
+ BSET(regs_modified,ti);
+ reg=ti;
+ }
+ }
+ }
+ /* op reg,mem/const */
+ if(issfr(z)&&(c==ADD||c==SUB||c==AND||c==OR||c==XOR||c==ADDI2P)&&(compare_objects(&p->q1,&p->z)||((c!=SUB&&c!=SUBIFP)&&compare_objects(&p->q2,&p->z)))){
+ char *s;
+ if(!compare_objects(&p->q1,&p->z)){o=p->q1;p->q1=p->q2;p->q2=o;}
+ if((p->q2.flags&(KONST|DREFOBJ))==KONST||((p->q2.flags&(VAR|DREFOBJ))==VAR&&ISSTATIC(p->q2.v))){
+ if(c>=OR&&c<=AND){
+ s=logicals[c-OR];
+ }else{
+ if(c==ADDI2P)
+ s=arithmetics[ADD-LSHIFT];
+ else if(c==SUBIFP)
+ s=arithmetics[SUB-LSHIFT];
+ else
+ s=arithmetics[c-LSHIFT];
+ }
+ if((p->q2.flags&VAR)&&ISFAR(p->q2.v)){
+ emit(f,"\texts\t#SEG ");isseg=1;emit_obj(f,&p->q2,t);emit(f,",#1\n");
+ }
+ emit(f,"\t%s%s\t",s,(t&NQ)==CHAR?"b":"");
+ emit_obj(f,&p->q1,t);
+ emit(f,",");
+ emit_obj(f,&p->q2,t);
+ emit(f,"\n");
+ cc=&p->z;cc_t=t;
+ continue;
+ }
+ }
+ /* op mem,reg */
+ if((c==ADD||c==SUB||c==AND||c==OR||c==XOR||c==ADDI2P)&&(compare_objects(&p->q1,&p->z)||((c!=SUB&&c!=SUBIFP)&&compare_objects(&p->q2,&p->z)))&&(p->z.flags&(VAR|VARADR|DREFOBJ|REG))==VAR&&ISSTATIC(p->z.v)){
+ char *s;
+ if(!compare_objects(&p->q1,&p->z)){o=p->q1;p->q1=p->q2;p->q2=o;}
+ cc=&p->z;cc_t=t;
+ if(isreg(q2)){
+ reg=p->q2.reg;
+ }else if(issfr(q2)){
+ reg=0;
+ }else if(isconst(q2)){
+ eval_const(&p->q2.val,t);
+ if(ISLWORD(t)){
+ unsigned long ul;
+ reg=MTMP1;
+ if((c==ADD||c==SUB||c==ADDI2P||c==SUBIFP)&&zumeqto(vumax,ul2zum(1UL))){
+ if(c==ADD) c=SUB;
+ else if(c==SUB) c=ADD;
+ else if(c==ADDI2P) c=SUBIFP;
+ else c=ADDI2P;
+ tmp1=ONES;tmp2=ONES;
+ }else{
+ ul=zum2ul(zumand(vumax,ul2zum(65535UL)));
+ if(ul==0) tmp1=ZEROS;
+ else if(ul==0xffff) tmp1=ONES;
+ else{
+ BSET(regs_modified,ti);
+ tmp1=ti;
+ emit(f,"\tmov\t%s,#%lu\n",regnames[ti],ul);
+ }
+ ul=zum2ul(zumand(zumrshift(vumax,ul2zum(16UL)),ul2zum(65535UL)));
+ if(ul==0) tmp2=ZEROS;
+ else if(ul==0xffff) tmp2=ONES;
+ else{
+ BSET(regs_modified,ti2);
+ tmp2=ti2;
+ emit(f,"\tmov\t%s,#%lu\n",regnames[ti2],ul);
+ }
+ }
+ }else{
+ long l;
+ if(c==OR&&(l=pof2(vumax))&&ISBADDR(p->z.v)){
+ emit(f,"\tbset\t");emit_obj(f,&p->z,t);
+ emit(f,".%ld\n",l-1);
+ cc=0;continue;
+ }else if(c==AND&&(l=pof2(zumkompl(vumax)))&&ISBADDR(p->z.v)){
+ emit(f,"\tbclr\t");emit_obj(f,&p->z,t);
+ emit(f,".%ld\n",l-1);
+ cc=0;continue;
+ }else if((c==ADD||c==SUB||c==ADDI2P||c==SUBIFP)&&zumeqto(vumax,ul2zum(1UL))){
+ if(c==ADD) c=SUB;
+ else if(c==SUB) c=ADD;
+ else if(c==ADDI2P) c=SUBIFP;
+ else c=ADDI2P;
+ reg=ONES;
+ }else{
+ if(zumeqto(vumax,ul2zum(0UL))) reg=ZEROS;
+ else if(zumeqto(vumax,ul2zum(0xffffUL))) reg=ONES;
+ else{
+ BSET(regs_modified,tp);
+ reg=tp;
+ move(f,&p->q2,0,0,reg,t);
+ }
+ }
+ }
+ }else{
+ /*FIXME:ones/zeros nutzen*/
+ if(ISLWORD(t)){
+ tmp1=ti;tmp2=ti2;
+ BSET(regs_modified,ti);
+ BSET(regs_modified,ti2);
+ reg=MTMP1;
+ }else{
+ BSET(regs_modified,tp);
+ reg=tp;
+ }
+ if((p->q2.flags&(DREFOBJ|REG))==DREFOBJ){
+ if(ISLWORD(p->q2.dtyp)){
+ tmp3=ti2;tmp4=ti;
+ BSET(regs_modified,ti);
+ BSET(regs_modified,ti2);
+ p->q2.flags&=~DREFOBJ;
+ move(f,&p->q2,0,0,MTMP2,HPOINTER);
+ p->q2.flags=(REG|DREFOBJ);p->q2.reg=MTMP2;
+ }else if(!(p->q2.flags&KONST)){
+ BSET(regs_modified,ti);
+ move(f,&p->q2,0,0,ti,NPOINTER);
+ p->q2.flags=REG;p->q2.reg=ti;
+ }
+ }
+ move(f,&p->q2,0,0,reg,t);
+ }
+ if(c>=OR&&c<=AND){
+ s=logicals[c-OR];
+ }else{
+ if(c==ADDI2P)
+ s=arithmetics[ADD-LSHIFT];
+ else if(c==SUBIFP)
+ s=arithmetics[SUB-LSHIFT];
+ else
+ s=arithmetics[c-LSHIFT];
+ }
+ if(reg&®_pair(reg,&rp)){
+ if(ISFAR(p->z.v)){
+ emit(f,"\texts\t#SEG ");isseg=1;emit_obj(f,&p->z,t);emit(f,",#2\n");
+ }
+ emit(f,"\t%s\t",s);
+ emit_obj(f,&p->q1,t);emit(f,",%s\n",regnames[rp.r1]);
+ s=longcmd(s);
+ p->q1.val.vmax=zmadd(p->q1.val.vmax,l2zm(2L));
+ emit(f,"\t%s\t",s);
+ emit_obj(f,&p->q1,t);emit(f,",%s\n",regnames[rp.r2]);
+ p->q1.val.vmax=zmsub(p->q1.val.vmax,l2zm(2L));
+ }else{
+ if(ISFAR(p->z.v)){
+ emit(f,"\texts\t#SEG ");isseg=1;emit_obj(f,&p->z,t);emit(f,",#1\n");
+ }
+ emit(f,"\t%s%s\t",s,(t&NQ)==CHAR?"b":"");
+ emit_obj(f,&p->q1,t);
+ if(reg)
+ emit(f,",%s\n",((t&NQ)==CHAR&®<=MAXR)?bregnames[reg]:regnames[reg]);
+ else{
+ emit(f,",");
+ emit_obj(f,&p->q2,t);
+ emit(f,"\n");
+ }
+ }
+ cc=&p->z;cc_t=t;
+ continue;
+ }
+ if(p->ext.flags==EXT_IC_BTST){
+ if(isreg(q1)){bit_reg=regnames[p->q1.reg];continue;}
+ if((p->q1.flags&(VAR|VARADR|DREFOBJ|REG))==VAR&&ISSTATIC(p->q1.v)&&ISBADDR(p->q1.v)){
+ bit_reg=0;bit_obj=&p->q1;
+ continue;
+ }
+ }
+
+ if((c==MULT||((c==DIV||c==MOD)&&(p->typf&UNSIGNED)))&&isconst(q2)){
+ long ln;
+ eval_const(&p->q2.val,t);
+ if(zmleq(l2zm(0L),vmax)&&zumleq(ul2zum(0UL),vumax)){
+ if(ln=pof2(vumax)){
+ if(c==MOD){
+ vmax=zmsub(vmax,l2zm(1L));
+ p->code=AND;
+ }else{
+ vmax=l2zm(ln-1);
+ if(c==DIV) p->code=RSHIFT; else p->code=LSHIFT;
+ }
+ c=p->code;
+ gval.vmax=vmax;
+ eval_const(&gval,MAXINT);
+ if(c==AND){
+ insert_const(&p->q2.val,t);
+ }else{
+ insert_const(&p->q2.val,INT);
+ p->typf2=INT;
+ }
+ }
+ }
+ }
+ if(ISLWORD(t)&&(c==MULT||c==DIV||c==MOD)){
+ if(lib_larith(f,p)) continue;
+ }
+
+ if(!p->q1.am&&(p->q1.flags&DREFOBJ)){
+ if(!(p->q1.flags&(REG))){
+ if(ISLWORD(p->q1.dtyp)){
+ tmp3=ti2;tmp4=ti;ti2_used=1;
+ BSET(regs_modified,ti);
+ BSET(regs_modified,ti2);
+ p->q1.flags&=~DREFOBJ;
+ move(f,&p->q1,0,0,MTMP2,FPOINTER);
+ p->q1.reg=MTMP2;
+ p->q1.flags=(REG|DREFOBJ);
+ }else if(!(p->q1.flags&KONST)){
+ BSET(regs_modified,ti);
+ p->q1.flags&=~DREFOBJ;
+ move(f,&p->q1,0,0,ti,NPOINTER);
+ p->q1.reg=ti;
+ p->q1.flags=(REG|DREFOBJ);
+ }
+ }
+ if(p->q2.flags){
+ move(f,&p->q1,0,0,reg,q2typ(p));/*FIXME*/
+ if((!isreg(q1)||p->q1.reg!=reg)&&c==COMPARE&&!ISLWORD(t)&&isconst(q2)){
+ /* avoid cmp, if not needed */
+ eval_const(&p->q2.val,t);
+ if(ISNULL()){
+ lastcomp=t;continue;
+ }
+ }
+ }
+ }else{
+ if(p->q2.flags){
+ move(f,&p->q1,0,0,reg,q1typ(p));/*FIXME*/
+ if((!isreg(q1)||p->q1.reg!=reg)&&c==COMPARE&&!ISLWORD(t)&&isconst(q2)){
+ /* avoid cmp, if not needed */
+ eval_const(&p->q2.val,t);
+ if(ISNULL()){
+ lastcomp=t;continue;
+ }
+ }
+ }
+ }
+ if(p->ext.flags==EXT_IC_BTST){ bit_reg=regnames[reg];continue;}
+ if(!p->q2.am&&(p->q2.flags&DREFOBJ)){
+ if(!(p->q2.flags&(REG))||p->q2.reg>4){
+ if(ISLWORD(p->q2.dtyp)){
+ if(ti2_used) tmp4=get_reg(f,p); else tmp4=ti2;
+ tmp3=tp;
+ BSET(regs_modified,tmp3);
+ BSET(regs_modified,tmp4);
+ p->q2.flags&=~DREFOBJ;
+ move(f,&p->q2,0,0,MTMP2,FPOINTER);
+ p->q2.reg=MTMP2;
+ p->q2.flags=(REG|DREFOBJ);
+ }else if(!(p->q2.flags&KONST)){
+ BSET(regs_modified,tp);
+ p->q2.flags&=~DREFOBJ;
+ move(f,&p->q2,0,0,tp,NPOINTER);
+ p->q2.flags=(REG|DREFOBJ);
+ p->q2.reg=tp;
+ }
+ }
+ }
+ if(c==CONVERT&&!must_convert(p->typf,p->typf2,0)){
+ p->code=c=ASSIGN;
+ p->q2.val.vmax=sizetab[p->typf&NQ];
+ }
+
+ if(c==CONVERT){
+ int to=p->typf2&NU;
+ if(to==INT) to=SHORT;
+ if(to==(UNSIGNED|INT)||to==NPOINTER) to=(UNSIGNED|SHORT);
+ if(to==FPOINTER||to==HPOINTER) to=(UNSIGNED|LONG);
+ if((t&NU)==INT) t=SHORT;
+ if((t&NU)==(UNSIGNED|INT)||(t&NU)==NPOINTER) t=(UNSIGNED|SHORT);
+ if((t&NQ)==FPOINTER||(t&NQ)==HPOINTER) t=(UNSIGNED|LONG);
+ if((to&NQ)<=LONG&&(t&NQ)<=LONG){
+ if((to&NQ)<=(t&NQ)){
+ if((to&NQ)==(t&NQ)) ierror(0);
+ if((to&NQ)==BIT){
+ cc=0;
+ if((p->q1.flags&(VAR|REG|DREFOBJ|VARADR))!=VAR||!ISSTATIC(p->q1.v)) ierror(0);
+ if(reg_pair(reg,&rp)){
+ emit(f,"\tmov\t%s,#0\n",regnames[rp.r1]);
+ emit(f,"\tmov\t%s,#0\n",regnames[rp.r2]);
+ emit(f,"\tbmov\t%s.0,",regnames[rp.r1]);
+ emit_obj(f,&p->q1,t);emit(f,"\n");
+ }else{
+ emit(f,"\tmov\t%s,#0\n",regnames[reg]);
+ emit(f,"\tbmov\t%s.0,",regnames[reg]);
+ }
+ emit_obj(f,&p->q1,t);emit(f,"\n");
+ save_result(f,reg,p,t);
+ continue;
+ }
+ if((p->q1.flags&(VAR|REG|VARADR))==VAR&&ISSTATIC(p->q1.v)&&ISFAR(p->q1.v)){
+ emit(f,"\texts\t#SEG ");isseg=1;emit_obj(f,&p->q1,t);
+ emit(f,",#1\n");
+ }
+ qp.SEG=0;
+ if(!p->q1.am&&(p->q1.flags&DREFOBJ)&®_pair(p->q1.reg,&qp))
+ emit(f,"\texts\t%s,#1\n",regnames[qp.SEG]);
+ if(p->q1.am&®_pair(p->q1.am->base,&qp))
+ emit(f,"\texts\t%s,#1\n",regnames[qp.SEG]);
+ if(reg_pair(reg,&rp)){
+ cc=0;
+ if((to&NQ)==CHAR){
+ if(isreg(q1)||((p->q1.flags&(VAR|VARADR|DREFOBJ))==VAR&&ISSTATIC(p->q1.v))){
+ emit(f,"\tmovb%c\t%s,",(to&UNSIGNED)?'z':'s',regnames[rp.r1]);
+ if((to&NQ)==CHAR&&isreg(q1)) emit(f,"%s",bregnames[p->q1.reg]);
+ else if(qp.SEG) emit(f,"[%s]",regnames[qp.SOF]);
+ else emit_obj(f,&p->q1,to);
+ emit(f,"\n");
+ }else{
+ BSET(regs_modified,tp);
+ emit(f,"\tmovb\t%s,",bregnames[tp]);
+ if(isreg(q1)) emit(f,"%s",bregnames[p->q1.reg]);
+ else if(!p->q1.am&&qp.SEG) emit(f,"[%s]",regnames[qp.SOF]);
+ else emit_obj(f,&p->q1,to);
+ emit(f,"\n");
+ emit(f,"\tmovb%c\t%s,%s\n",(to&UNSIGNED)?'z':'s',regnames[rp.r1],bregnames[tp]);
+ }
+ }else{
+ emit(f,"\tmov\t%s,",regnames[rp.r1]);
+ if(qp.SEG) emit(f,"[%s]",regnames[qp.SOF]);
+ else emit_obj(f,&p->q1,to);
+ emit(f,"\n");
+ }
+ if(to&UNSIGNED)
+ emit(f,"\tmov\t%s,#0\n",regnames[rp.r2]);
+ else
+ emit(f,"\tmov\t%s,%s\n\tashr\t%s,#15\n",regnames[rp.r2],regnames[rp.r1],regnames[rp.r2]);
+
+ }else{
+ cc=&p->z;cc_t=t;
+ if(isreg(q1)||((p->q1.flags&(VAR|VARADR|DREFOBJ))==VAR&&ISSTATIC(p->q1.v))){
+ emit(f,"\tmovb%c\t%s,",(to&UNSIGNED)?'z':'s',regnames[reg]);
+ if((to&NQ)==CHAR&&isreg(q1)) emit(f,"%s",bregnames[p->q1.reg]);
+ else if(qp.SEG) emit(f,"[%s]",regnames[qp.SOF]);
+ else emit_obj(f,&p->q1,to);
+ emit(f,"\n");
+ }else{
+ BSET(regs_modified,tp);
+ emit(f,"\tmovb\t%s,",bregnames[tp]);
+ if(isreg(q1)) emit(f,"%s",bregnames[p->q1.reg]);
+ else if(!p->q1.am&&qp.SEG) emit(f,"[%s]",regnames[qp.SOF]);
+ else emit_obj(f,&p->q1,to);
+ emit(f,"\n");
+ emit(f,"\tmovb%c\t%s,%s\n",(to&UNSIGNED)?'z':'s',regnames[reg],bregnames[tp]);
+ }
+ }
+ save_result(f,reg,p,t);
+ continue;
+ }else{
+ if((t&NQ)==BIT){
+ if(!isreg(z)&&((p->z.flags&(VAR|REG|DREFOBJ|VARADR))!=VAR||!ISSTATIC(p->z.v))) ierror(0);
+ if(isreg(q1)){
+ reg=p->q1.reg;
+ }else{
+ if(ISLWORD(to)){
+ tmp1=ti;tmp2=ti2;
+ BSET(regs_modified,ti);
+ BSET(regs_modified,ti2);
+ reg=MTMP1;
+ }
+ }
+ move(f,&p->q1,0,0,reg,to);
+ if(reg_pair(reg,&rp)){
+ if(isreg(q1)&&!scratchreg(reg,p)){
+ BSET(regs_modified,ti);
+ emit(f,"\tmov\t%s,%s\n",regnames[ti],regnames[rp.r1]);
+ emit(f,"\tor\t%s,%s\n",regnames[ti],regnames[rp.r2]);
+ }else
+ emit(f,"\tor\t%s,%s\n",regnames[rp.r1],regnames[rp.r2]);
+ }else{
+ if(isreg(q1)) emit(f,"\tcmp%s\t%s,#0\n",(to&NQ)==CHAR?"b":"",(to&NQ)==CHAR?bregnames[reg]:regnames[reg]);
+ }
+ emit(f,"\tbmovn\t");
+ if(isesfrbit(z))
+ emit(f,"%s.0",regnames[ti]);
+ else
+ emit_obj(f,&p->z,t);
+ emit(f,",PSW.3\n");
+ if(isesfrbit(z)){
+ emit(f,"\textr\t#1\n");
+ emit(f,"\tbmov\t");
+ emit_obj(f,&p->z,t);
+ emit(f,",%s.0\n",regnames[ti]);
+ }
+ cc=0;continue;
+ }
+ cc=&p->z;cc_t=t;
+ if(ISLWORD(to)){
+ if(isreg(q1)) {reg_pair(p->q1.reg,&rp);p->q1.reg=rp.r1;}
+ to=SHORT;
+ }
+ if(isreg(q1)&®ok(p->q1.reg,t,0)) reg=p->q1.reg;
+ if(isreg(z)) reg=p->z.reg;
+ if(!regok(reg,t,0)){
+ reg=tp;
+ BSET(regs_modified,tp);
+ }
+ move(f,&p->q1,0,0,reg,to);
+ save_result(f,reg,p,t);
+ }
+ continue;
+ }
+ ierror(0);
+ }
+ if(c==MINUS||c==KOMPLEMENT){
+ move(f,&p->q1,0,0,reg,t);
+ if(reg_pair(reg,&rp)){
+ emit(f,"\t%s\t%s\n",(c==MINUS?"neg":"cpl"),regnames[rp.r1]);
+ if(c==MINUS) emit(f,"\taddc\t%s,#0\n",regnames[rp.r2]);
+ emit(f,"\t%s\t%s\n",(c==MINUS?"neg":"cpl"),regnames[rp.r2]);
+ cc=0;
+ }else{
+ emit(f,"\t%s%s\t%s\n",(c==MINUS?"neg":"cpl"),x_t[t&NQ],regnames[reg]);
+ cc=&p->z;cc_t=t;
+ }
+ save_result(f,reg,p,t);
+ continue;
+ }
+ if(c==SETRETURN){
+ if(p->z.reg){
+ move(f,&p->q1,0,0,p->z.reg,t);
+ BSET(regs_modified,p->z.reg);
+ }
+ cc=0; /* probably not needed */
+ continue;
+ }
+ if(c==GETRETURN){
+ if(p->q1.reg){
+ if(!isreg(z)||p->z.reg!=p->q1.reg){ cc=&p->z;cc_t=t;}
+ save_result(f,p->q1.reg,p,t);
+ }
+ continue;
+ }
+ if(c==CALL){
+ int reg,jmp=0;long csstack=0,custack=0;
+ cc=0;
+ if((p->q1.flags&(VAR|DREFOBJ))==VAR&&!strcmp("__va_start",p->q1.v->identifier)){
+ long va_off=loff-usrstackoffset+pushedsize+zm2l(va_offset(v));
+ emit(f,"\tmov\t%s,%s\n",regnames[r4],regnames[sp]);
+ if(va_off)
+ emit(f,"\tadd\t%s,#%ld\n",regnames[r4],va_off);
+ BSET(regs_modified,r4);
+ if(LARGE||HUGE){
+ emit(f,"\tmov\t%s,#0\n",regnames[r5]);
+ BSET(regs_modified,r5);
+ }
+ continue;
+ }
+ if(stack_valid){
+ int i;
+ if(p->call_cnt<=0){
+ err_ic=p;if(f) error(320);
+ stack_valid=0;
+ }
+ for(i=0;stack_valid&&i<p->call_cnt;i++){
+ if(p->call_list[i].v->fi&&(p->call_list[i].v->fi->flags&ALL_STACK)){
+ if(p->call_list[i].v->fi->stack1>custack) custack=p->call_list[i].v->fi->stack1;
+ if(p->call_list[i].v->fi->stack2>csstack) csstack=p->call_list[i].v->fi->stack2;
+ }else{
+ err_ic=p;if(f) error(317,p->call_list[i].v->identifier);
+ stack_valid=0;
+ }
+ }
+ }
+ if(!calc_regs(p,f!=0)&&v->fi) v->fi->flags&=~ALL_REGS;
+ if((p->q1.flags&VAR)&&p->q1.v->fi&&p->q1.v->fi->inline_asm){
+ emit_inline_asm(f,p->q1.v->fi->inline_asm);
+ callee_push(custack,csstack);
+ }else{
+ if(usrstackoffset==0&&!have_frame&&!(v->tattr&INTERRUPT)){
+ struct IC *p2;
+ jmp=1;
+ for(p2=p->next;p2;p2=p2->next){
+ if(p2->code!=FREEREG&&p2->code!=ALLOCREG&&p2->code!=LABEL&&
+ (p2->code!=GETRETURN||(p2->z.flags&(REG|DREFOBJ))!=REG||p2->q1.reg!=p2->z.reg)&&
+ (p2->code!=SETRETURN||(p2->q1.flags&(REG|DREFOBJ))!=REG||p2->q1.reg!=p2->z.reg)){
+ jmp=0;break;
+ }
+ }
+ }
+ if(p->q1.flags&DREFOBJ){
+ int clabel=++label;
+ if(ISLWORD(p->q1.dtyp)){
+ int tmp;
+ if(!ti2_used) tmp=ti2; else tmp=tp;
+ BSET(regs_modified,tmp);
+ emit(f,"\tmov\t%s,#SEG %s%d\n",regnames[tmp],labprefix,clabel);
+ emit(f,"\tpush\t%s\n",regnames[tmp]);
+ emit(f,"\tmov\t%s,#SOF %s%d\n",regnames[tmp],labprefix,clabel);
+ emit(f,"\tpush\t%s\n",regnames[tmp]);
+ push(0,4);
+ }
+ if(!(p->q1.flags®)) ierror(0);
+ reg=p->q1.reg;
+ p->q1.flags&=~DREFOBJ;
+ if(!ISLWORD(p->q1.dtyp)){
+ emit(f,"\tcalli\tcc_uc,[%s]\n",regnames[reg]);
+ push(0,2);
+ callee_push(custack,csstack);
+ pop(0,2);
+ }else{
+ if(!reg_pair(reg,&rp)) ierror(0);
+ emit(f,"\tpush\t%s\n",regnames[rp.r2]);
+ emit(f,"\tpush\t%s\n",regnames[rp.r1]);
+ push(0,4);
+ callee_push(custack,csstack);
+ emit(f,"\trets\n");
+ emit(f,"%s%d:\n",labprefix,clabel);
+ pop(0,8);
+ }
+ }else{
+ if(jmp){
+ emit(f,"\t%s",jump);
+ if(!need_return) ret=TASKING?"retv":"";
+ callee_push(custack,csstack);
+ }else{
+ emit(f,"\t%s\t",call);
+ if(TINY)
+ push(0,2);
+ else
+ push(0,4);
+ callee_push(custack,csstack);
+ if(TINY)
+ pop(0,2);
+ else
+ pop(0,4);
+ }
+ emit_obj(f,&p->q1,t);
+ emit(f,"\n");
+ }
+ }
+ if(!zmeqto(l2zm(0L),p->q2.val.vmax)){
+ notpopped+=zm2l(p->q2.val.vmax);
+ dontpop-=zm2l(p->q2.val.vmax);
+ if(!(g_flags[2]&USEDFLAG)&&usrstackoffset==-notpopped){
+ /* Entfernen der Parameter verzoegern */
+ }else{
+ emit(f,"\tadd\t%s,#%ld\n",regnames[sp],zm2l(p->q2.val.vmax));
+ pop(zm2l(p->q2.val.vmax),0);
+ notpopped-=zm2l(p->q2.val.vmax);cc=0;
+ }
+ }
+ continue;
+ }
+ if(c==ASSIGN||c==PUSH){
+ if(c==PUSH) dontpop+=zm2l(p->q2.val.vmax);
+ if(!ISSCALAR(t)||!zmeqto(p->q2.val.vmax,sizetab[t&NQ])||!zmleq(p->q2.val.vmax,l2zm(4L))){
+ int alq,alz,rq,rz;unsigned long size;
+ cc=0;
+ size=zm2l(p->q2.val.vmax);
+ /*FIXME: check for (s)huge */
+ if(malign[t&NQ]==1){
+ alq=alignment(&p->q1);
+ alz=alignment(&p->z);
+ }else{
+ alq=alz=0;
+ }
+ if(size==1||(size==2&&alq==0&&alz==0)){
+ if(c==PUSH&&zm2l(p->z.val.vmax)==1){
+ emit(f,"\tsub\t%s,#1\n",regnames[sp]);
+ push(1,0);size=1;
+ }
+ BSET(regs_modified,tp);
+ move(f,&p->q1,0,0,tp,size==1?CHAR:SHORT);
+ if(c==PUSH){
+ emit(f,"\tmov\t[-%s],%s\n",regnames[sp],regnames[tp]);
+ push(size,0);
+ }else
+ save_result(f,tp,p,size==1?CHAR:SHORT);
+ continue;
+ }
+ if(size==4&&alq==0&&alz==0){
+ tmp1=ti;tmp2=ti2;
+ BSET(regs_modified,ti);
+ BSET(regs_modified,ti2);
+ move(f,&p->q1,0,0,MTMP1,LONG);
+ if(c==PUSH){
+ emit(f,"\tmov\t[-%s],%s\n",regnames[sp],regnames[tmp2]);
+ emit(f,"\tmov\t[-%s],%s\n",regnames[sp],regnames[tmp1]);
+ push(4,0);
+ }else
+ save_result(f,MTMP1,p,LONG);
+ continue;
+ }
+ if(p->q1.am){
+ if(p->q1.am->flags!=IMM_IND) ierror(0);
+ if(!scratchreg(p->q1.am->base,p)){
+ BSET(regs_modified,ti);
+ emit(f,"\tmov\t%s,%s\n",regnames[ti],regnames[p->q1.am->base]);
+ rq=ti;
+ }else
+ rq=p->q1.am->base;
+ emit(f,"\tadd\t%s,#%ld",regnames[rq],p->q1.am->offset);
+ if(p->q1.am->v){
+ if(p->q1.am->v->storage_class==EXTERN)
+ emit(f,"+%s%s\n",idprefix,p->q1.am->v->identifier);
+
+ else
+ emit(f,"+%s%ld\n",labprefix,zm2l(p->q1.am->v->offset));
+ }
+ emit(f,"\n");
+ }else if(p->q1.flags®){
+ if(scratchreg(p->q1.reg,p)){
+ rq=p->q1.reg;
+ }else{
+ BSET(regs_modified,ti);
+ emit(f,"\tmov\t%s,%s\n",regnames[ti],regnames[p->q1.reg]);
+ rq=ti;
+ }
+ }else if((p->q1.flags&VAR)&&ISSTATIC(p->q1.v)){
+ int m=p->q1.flags;
+ rq=ti;
+ BSET(regs_modified,ti);
+ if(p->q1.flags&DREFOBJ)
+ p->q1.flags&=~DREFOBJ;
+ else
+ p->q1.flags|=VARADR;
+ move(f,&p->q1,0,0,ti,NPOINTER);
+ p->q1.flags&=~VARADR;
+ }else{
+ BSET(regs_modified,ti);
+ rq=ti;
+ emit(f,"\tmov\t%s,%s\n",regnames[ti],regnames[sp]);
+ if(voff(&p->q1))
+ emit(f,"\tadd\t%s,#%ld\n",regnames[ti],voff(&p->q1));
+ }
+ if(!p->z.flags){
+ /* PUSH */
+ emit(f,"\tsub\t%s,#%lu\n",regnames[sp],size);
+ emit(f,"\tmov\t%s,%s\n",regnames[ti2],regnames[sp]);
+ rz=ti2;
+ push(size,0);
+ BSET(regs_modified,ti2);
+ }else if(p->z.am){
+ if(p->z.am->flags!=IMM_IND) ierror(0);
+ if(!scratchreg(p->z.am->base,p)){
+ BSET(regs_modified,ti2);
+ emit(f,"\tmov\t%s,%s\n",regnames[ti2],regnames[p->z.am->base]);
+ rz=ti2;
+ }else
+ rz=p->z.am->base;
+ emit(f,"\tadd\t%s,#%ld",regnames[rz],p->z.am->offset);
+ if(p->z.am->v){
+ if(p->z.am->v->storage_class==EXTERN)
+ emit(f,"+%s%s",idprefix,p->z.am->v->identifier);
+ else
+ emit(f,"%+s%ld",labprefix,zm2l(p->z.am->v->offset));
+
+ }
+ emit(f,"\n");
+ }else if(p->z.flags®){
+ if(scratchreg(p->z.reg,p)){
+ rz=p->z.reg;
+ }else{
+ BSET(regs_modified,ti2);
+ emit(f,"\tmov\t%s,%s\n",regnames[ti2],regnames[p->z.reg]);
+ rz=ti2;
+ }
+ }else if(ISSTATIC(p->z.v)){
+ int m=p->z.flags;
+ rz=ti2;
+ BSET(regs_modified,ti2);
+ if(p->z.flags&DREFOBJ)
+ p->z.flags&=~DREFOBJ;
+ else
+ p->z.flags|=VARADR;
+ move(f,&p->z,0,0,ti2,NPOINTER);
+ p->z.flags=m;
+ }else{
+ BSET(regs_modified,ti2);
+ rz=ti2;
+ emit(f,"\tmov\t%s,%s\n",regnames[ti2],regnames[sp]);
+ if(voff(&p->z))
+ emit(f,"\tadd\t%s,#%ld\n",regnames[ti2],voff(&p->z));
+ }
+ if(alq==0&&alz==0){
+ if(optspeed){
+ if((size/8)>1){
+ BSET(regs_modified,tp);
+ emit(f,"\tmov\t%s,#%lu\n",regnames[tp],size/8);
+ emit(f,"%s%d:\n",labprefix,++label);
+ }
+ if(size>=8){
+ emit(f,"\tmov\t[%s],[%s+]\n",regnames[rz],regnames[rq]);
+ emit(f,"\tadd\t%s,#2\n",regnames[rz]);
+ emit(f,"\tmov\t[%s],[%s+]\n",regnames[rz],regnames[rq]);
+ emit(f,"\tadd\t%s,#2\n",regnames[rz]);
+ emit(f,"\tmov\t[%s],[%s+]\n",regnames[rz],regnames[rq]);
+ emit(f,"\tadd\t%s,#2\n",regnames[rz]);
+ emit(f,"\tmov\t[%s],[%s+]\n",regnames[rz],regnames[rq]);
+ emit(f,"\tadd\t%s,#2\n",regnames[rz]);
+ }
+ if((size/8)>1){
+ emit(f,"\tsub\t%s,#1\n",regnames[tp]);
+ emit(f,"\tjmpr\tcc_nz,%s%d\n",labprefix,label);
+ }
+ size&=7;
+ if(size>=4){
+ emit(f,"\tmov\t[%s],[%s+]\n",regnames[rz],regnames[rq]);
+ emit(f,"\tadd\t%s,#2\n",regnames[rz]);
+ emit(f,"\tmov\t[%s],[%s+]\n",regnames[rz],regnames[rq]);
+ if(size>4) emit(f,"\tadd\t%s,#2\n",regnames[rz]);
+ }
+ size&=3;
+ if(size>=2){
+ emit(f,"\tmov\t[%s],[%s+]\n",regnames[rz],regnames[rq]);
+ if(size>2) emit(f,"\tadd\t%s,#2\n",regnames[rz]);
+ }
+ if(size&1)
+ if(size&1) emit(f,"\tmovb\t[%s],[%s]\n",regnames[rz],regnames[rq]);
+ }else{
+ BSET(regs_modified,tp);
+ emit(f,"\tmov\t%s,#%lu\n",regnames[tp],size/2);
+ emit(f,"%s%d:\n",labprefix,++label);
+ emit(f,"\tmov\t[%s],[%s+]\n",regnames[rz],regnames[rq]);
+ emit(f,"\tadd\t%s,#2\n",regnames[rz]);
+ emit(f,"\tsub\t%s,#1\n",regnames[tp]);
+ emit(f,"\tjmpr\tcc_nz,%s%d\n",labprefix,label);
+ if(size&1) emit(f,"\tmovb\t[%s],[%s]\n",regnames[rz],regnames[rq]);
+ }
+ }else{
+ BSET(regs_modified,tp);
+ emit(f,"\tmov\t%s,#%lu\n",regnames[tp],size);
+ emit(f,"%s%d:\n",labprefix,++label);
+ emit(f,"\tmovb\t[%s],[%s+]\n",regnames[rz],regnames[rq]);
+ emit(f,"\tadd\t%s,#1\n",regnames[rz]);
+ emit(f,"\tsub\t%s,#1\n",regnames[tp]);
+ emit(f,"\tjmpr\tcc_nz,%s%d\n",labprefix,label);
+ }
+ continue;
+ }
+ /* mov [rx],[ry] ; mov [rx+],[ry] ; mov [rx],[ry+] */
+ if(!ISLWORD(t)&&(p->q1.flags&(REG|DREFOBJ))==(REG|DREFOBJ)&&(p->z.flags&(REG|DREFOBJ))==(REG|DREFOBJ)&&(!p->z.am||p->z.am->flags==POST_INC)&&(!p->q1.am||p->q1.am->flags==POST_INC)&&!reg_pair(p->q1.reg,&rp)&&!reg_pair(p->z.reg,&rp)){
+ emit(f,"\tmov%s\t",(t&NQ)==CHAR?"b":"");
+ emit_obj(f,&p->z,t);emit(f,",");
+ emit_obj(f,&p->q1,t);emit(f,"\n");
+ cc=&p->z;cc_t=t;continue;
+ }
+ /* mov mem,[rx]/reg */
+ if(!ISLWORD(t)&&(issfr(q1)||(p->q1.flags&(REG|DREFOBJ))==(REG|DREFOBJ))&&(p->z.flags&(REG|DREFOBJ|VAR))==VAR&&!p->q1.am&&(p->z.v->storage_class==STATIC||p->z.v->storage_class==EXTERN)){
+ emit(f,"\tmov%s\t",(t&NQ)==CHAR?"b":"");
+ emit_obj(f,&p->z,t);emit(f,",");
+ emit_obj(f,&p->q1,t);emit(f,"\n");
+ cc=&p->z;cc_t=t;continue;
+ }
+ /* mov [rx]/reg,mem */
+ if(!ISLWORD(t)&&(issfr(z)||(p->z.flags&(REG|DREFOBJ))==(REG|DREFOBJ))&&(p->q1.flags&(REG|DREFOBJ|VAR))==VAR&&!p->z.am&&(p->q1.v->storage_class==STATIC||p->q1.v->storage_class==EXTERN)){
+ emit(f,"\tmov%s\t",(t&NQ)==CHAR?"b":"");
+ emit_obj(f,&p->z,t);emit(f,",");
+ emit_obj(f,&p->q1,t);emit(f,"\n");
+ cc=&p->z;cc_t=t;continue;
+ }
+ /* mov reg,op */
+ if(issfr(z)&&(p->q1.flags&KONST)){
+ emit(f,"\tmov%s\t",(t&NQ)==CHAR?"b":"");
+ emit_obj(f,&p->z,t);emit(f,",");
+ emit_obj(f,&p->q1,t);emit(f,"\n");
+ cc=&p->z;cc_t=t;continue;
+ }
+
+ if(isreg(q1)){
+ reg=p->q1.reg;
+ }else if(isreg(z)){
+ reg=p->z.reg;
+ }else{
+ BSET(regs_modified,ti);
+ if(ISLWORD(t)){
+ BSET(regs_modified,ti2);
+ tmp1=ti;tmp2=ti2;
+ reg=MTMP1;
+ }else
+ reg=ti;
+ }
+ if(c==PUSH){
+ move(f,&p->q1,0,0,reg,t);
+ if(reg_pair(reg,&rp)){
+ emit(f,"\tmov\t[-%s],%s\n",regnames[sp],regnames[rp.r2]);
+ emit(f,"\tmov\t[-%s],%s\n",regnames[sp],regnames[rp.r1]);
+ cc=0;
+ }else{
+ emit(f,"\tmov%s\t[-%s],%s\n",x_t[t&NQ],regnames[sp],regnames[reg]);
+ cc=&p->q1;cc_t=t;
+ }
+ push(zm2l(p->z.val.vmax),0);
+ continue;
+ }
+ if(c==ASSIGN){
+ if((p->z.flags&(VAR|REG|DREFOBJ))==VAR&&ISSTATIC(p->z.v)&&isconst(q1)){
+ /*FIXME: long und ones */
+ eval_const(&p->q1.val,t);
+ if(ISNULL()&&!ISLWORD(t)){
+ emit(f,"\tmov%s\t",(t&NQ)==CHAR?"b":"");emit_obj(f,&p->z,t);
+ emit(f,",ZEROS\n");
+ cc=&p->z;cc_t=t;continue;
+ }
+ }
+ if((t&NQ)==CHAR&&!regok(reg,CHAR,0)){
+ reg=tp;
+ BSET(regs_modified,tp);
+ }
+ move(f,&p->q1,0,0,reg,t);
+ save_result(f,reg,p,t);
+ if(ISLWORD(t)){
+ cc=0;
+ }else{
+ cc=&p->z;cc_t=t;
+ }
+ continue;
+ }
+ ierror(0);
+ }
+ if(c==ADDRESS){
+ if(reg_pair(reg,&rp)){
+ emit(f,"\tmov\t%s,%s\n",regnames[rp.r1],regnames[sp]);
+ emit(f,"\tmov\t%s,#0\n",regnames[rp.r2]);
+ if(voff(&p->q1))
+ emit(f,"\tadd\t%s,#%ld\n",regnames[rp.r1],voff(&p->q1)&0xffff);
+ }else{
+ emit(f,"\tmov\t%s,%s\n",regnames[reg],regnames[sp]);
+ if(voff(&p->q1)) emit(f,"\tadd\t%s,#%ld\n",regnames[reg],voff(&p->q1));
+ }
+ save_result(f,reg,p,p->typf2);
+ cc=0;
+ continue;
+ }
+
+ if(c==MOD||c==DIV){
+ if(ISLWORD(t)) ierror(0);
+ /*FIXME:suboptimal*/
+ emit(f,"\tmov\tMDL,%s\n",regnames[reg]);
+ move(f,&p->q2,0,0,reg,t);
+ emit(f,"\tdiv%s\t%s\n",(t&UNSIGNED)?"u":"",regnames[reg]);
+ if(c==MOD)
+ emit(f,"\tmov\t%s,MDH\n",regnames[reg]);
+ else
+ emit(f,"\tmov\t%s,MDL\n",regnames[reg]);
+ save_result(f,reg,p,t);
+ cc=&p->z;cc_t=t;
+ continue;
+ }
+ if((c>=LSHIFT&&c<=MOD)||(c>=OR&&c<=AND)||c==COMPARE||c==ADDI2P||c==SUBIFP){
+ char *s;
+ /*FIXME: nicht immer besser*/
+/* rfi: better performed in LSHIFT code generation
+ if(ISLWORD(t)&&c==LSHIFT&&isconst(q2)){
+ eval_const(&p->q2.val,t);
+ if(zm2l(vmax)==1&&!p->q1.am){
+ p->code=c=ADD;
+ p->q2=p->q1;
+ }
+ }
+*/
+ if(ISLWORD(t)&&c==MULT) ierror(0);
+ if(ISLWORD(t)&&(c==LSHIFT||c==RSHIFT)){
+/* rfi: we now handle constant value greater than 16 in const shift generation
+ if(isconst(q2))
+ eval_const(&p->q2.val,q2typ(p));
+ if(!isconst(q2)||zmleq(l2zm(16L),vmax)){
+*/
+ if(!isconst(q2)){
+ int cnt,lab1,lab2;
+ if(isreg(q2)&&scratchreg(p->q2.reg,p)){
+ cnt=p->q2.reg;
+ }else{
+ BSET(regs_modified,tp);
+ cnt=tp;
+ if(isreg(q2)&®_pair(p->q2.reg,&rp))
+ move(f,0,rp.r1,0,tp,INT);
+ else
+ move(f,&p->q2,0,0,tp,INT);
+ }
+ if(reg_pair(cnt,&rp))
+ cnt=rp.r1;
+ /*move(f,&p->q1,0,0,reg,ztyp(p));*/
+ lab1=++label;lab2=++label;
+ if(!reg_pair(reg,&rp)) ierror(0);
+ if(c==LSHIFT){
+ emit(f,"\tjmpr\tcc_uc,%s%d\n",labprefix,lab2);
+ emit(f,"%s%d:\n",labprefix,lab1);
+ emit(f,"\tadd\t%s,%s\n",regnames[rp.r1],regnames[rp.r1]);
+ emit(f,"\taddc\t%s,%s\n",regnames[rp.r2],regnames[rp.r2]);
+ emit(f,"%s%d:\n",labprefix,lab2);
+/* rfi: fix off by one and handle negative shift value
+ emit(f,"\tsub\t%s,#1\n",regnames[cnt]);
+ emit(f,"\tjmpr\tcc_ne,%s%d\n",labprefix,lab1);
+*/
+ emit(f,"\tcmpd1\t%s,#1\n",regnames[cnt]);
+ emit(f,"\tjmpr\tcc_sge,%s%d\n",labprefix,lab1);
+ }else{
+ emit(f,"\tjmpr\tcc_uc,%s%d\n",labprefix,lab2);
+ emit(f,"%s%d:\n",labprefix,lab1);
+ emit(f,"\tshr\t%s,#1\n",regnames[rp.r1]);
+ emit(f,"\tbmov\t%s.15,%s.0\n",regnames[rp.r1],regnames[rp.r2]);
+/* rfi: use ashr for signed shift
+ emit(f,"\tshr\t%s,#1\n",regnames[rp.r2]);
+*/
+ emit(f,"\t%sshr\t%s,#1\n",(t&UNSIGNED)?"":"a",regnames[rp.r2]);
+ emit(f,"%s%d:\n",labprefix,lab2);
+/* rfi: fix off by one and handle negative shift value
+ emit(f,"\tsub\t%s,#1\n",regnames[cnt]);
+ emit(f,"\tjmpr\tcc_ne,%s%d\n",labprefix,lab1);
+*/
+ emit(f,"\tcmpd1\t%s,#1\n",regnames[cnt]);
+ emit(f,"\tjmpr\tcc_sge,%s%d\n",labprefix,lab1);
+ }
+ save_result(f,reg,p,ztyp(p));
+ continue;
+ }
+ }
+ if(c>=OR&&c<=AND){
+ s=logicals[c-OR];
+ }else{
+ if(c==ADDI2P)
+ s=arithmetics[ADD-LSHIFT];
+ else if(c==SUBIFP)
+ s=arithmetics[SUB-LSHIFT];
+ else
+ s=arithmetics[c-LSHIFT];
+ }
+ if(c==RSHIFT&&!(t&UNSIGNED)) s="ashr";
+ if(c==COMPARE){
+ lastcomp=t;
+ if(ISLWORD(t)) s="sub"; else s="cmp";
+ }
+ if((c==MULT&&!isreg(q2))){
+ BSET(regs_modified,tp);
+ move(f,&p->q2,0,0,tp,t);
+ p->q2.flags=REG;
+ p->q2.reg=tp;
+ }
+ if((c==LSHIFT||c==RSHIFT)&&!isconst(q2)&&!isreg(q2)){
+ BSET(regs_modified,tp);
+ move(f,&p->q2,0,0,tp,t);
+ p->q2.flags=REG;
+ p->q2.reg=tp;
+ }
+ if(isreg(q2)){
+ if(reg_pair(reg,&rp)){
+ if(!reg_pair(p->q2.reg,&qp)) qp.r1=p->q2.reg;
+ emit(f,"\t%s\t%s,%s\n",s,regnames[rp.r1],regnames[qp.r1]);
+ s=longcmd(s);
+ if(!short_add) emit(f,"\t%s\t%s,%s\n",s,regnames[rp.r2],regnames[qp.r2]);
+ }else{
+ emit(f,"\t%s%s\t%s,%s\n",s,x_t[t&NQ],(t&NQ)==CHAR?bregnames[reg]:regnames[reg],(t&NQ)==CHAR?bregnames[p->q2.reg]:regnames[p->q2.reg]);
+ }
+ }else if(p->q2.am){
+ if(reg_pair(p->q2.am->base,&rp)){
+ int seg=rp.SEG;
+ if(!short_add&®_pair(reg,&rp))
+ emit(f,"\texts\t%s,#3\n",regnames[seg]);
+ else
+ emit(f,"\texts\t%s,#1\n",regnames[seg]);
+ }
+ if(reg_pair(reg,&rp)){
+ BSET(regs_modified,tp);
+ emit(f,"\tmov\t%s,",regnames[tp]);emit_obj(f,&p->q2,t);emit(f,"\n");
+ emit(f,"\t%s\t%s,%s\n",s,regnames[rp.r1],regnames[tp]);
+ s=longcmd(s);
+ if(!short_add){
+ p->q2.am->offset+=2;
+ emit(f,"\tmov\t%s,",regnames[tp]);emit_obj(f,&p->q2,t);emit(f,"\n");
+ emit(f,"\t%s\t%s,%s\n",s,regnames[rp.r2],regnames[tp]);
+ p->q2.am->offset-=2;
+ }
+ }else{
+ if(p->q2.am->flags==POST_INC&&p->q2.am->base<=4){
+ emit(f,"\t%s%s\t%s,",s,x_t[t&NQ],(t&NQ)==CHAR?bregnames[reg]:regnames[reg]);
+ emit_obj(f,&p->q2,t);emit(f,"\n");
+ }else{
+ BSET(regs_modified,tp);
+ emit(f,"\tmov%s\t%s,",x_t[t&NQ],(t&NQ)==CHAR?bregnames[tp]:regnames[tp]);
+ emit_obj(f,&p->q2,t);emit(f,"\n");
+ emit(f,"\t%s%s\t%s,%s\n",s,x_t[t&NQ],(t&NQ)==CHAR?bregnames[reg]:regnames[reg],(t&NQ)==CHAR?bregnames[tp]:regnames[tp]);
+ }
+ }
+ }else if((p->q2.flags&(VAR|VARADR|REG))==VAR&&ISSTATIC(p->q2.v)){
+ if(ISFAR(p->q2.v)){
+ emit(f,"\texts\t#SEG ");isseg=1;emit_obj(f,&p->q2,t);
+ emit(f,",#%d\n",(reg_pair(reg,&rp)?2:1));
+ }
+ if(reg_pair(reg,&rp)){
+ emit(f,"\t%s\t%s,",s,regnames[rp.r1]);
+ emit_obj(f,&p->q2,t);emit(f,"\n");
+ s=longcmd(s);
+ if(!short_add){
+ emit(f,"\t%s\t%s,",s,regnames[rp.r2]);
+ emit_obj(f,&p->q2,t);emit(f,"+2\n");
+ }
+ }else{
+ emit(f,"\t%s%s\t%s,",s,x_t[t&NQ],(t&NQ)==CHAR?bregnames[reg]:regnames[reg]);
+ emit_obj(f,&p->q2,t);emit(f,"\n");
+ }
+ }else if(isconst(q2)){
+ if(ISFLOAT(t)) ierror(0);
+ if(reg_pair(reg,&rp)){
+ long l;
+/* rfi: shift constant must be evaluated according to own type
+ eval_const(&p->q2.val,t);
+*/
+ eval_const(&p->q2.val,q2typ(p));
+ if(c==RSHIFT){
+ l=zm2l(vmax);
+/* rfi: new generation for constant right shift */
+ if( l < 0) {
+ /* TODO: we should raise a warning */
+ /* Implementation dependent: negative shift is same as null shift */
+ /* avoid shift generation */
+ } else if( l > 31) {
+ /* TODO: we should raise a warning */
+ /* Implementation dependent: same behaviour as non const shift */
+ if( t & UNSIGNED)
+ emit(f,"\tmov\t%s,#0\n",regnames[rp.r2]);
+ else
+ emit(f,"\t%s\t%s,#15\n",s,regnames[rp.r2]);
+
+ emit(f,"\tmov\t%s,%s\n",regnames[rp.r1],regnames[rp.r2]);
+ } else if( l > 15) {
+ emit(f,"\tmov\t%s,%s\n",regnames[rp.r1],regnames[rp.r2]);
+ if( t & UNSIGNED)
+ emit(f,"\tmov\t%s,#0\n",regnames[rp.r2]);
+ else
+ emit(f,"\t%s\t%s,#15\n",s,regnames[rp.r2]);
+
+ l -= 16 ;
+ if( l > 0)
+ emit(f,"\t%s\t%s,#%ld\n",s,regnames[rp.r1],l);
+ } else if( l == 0) {
+ /* avoid shift generation */
+ } else if( l == 1) {
+ emit(f,"\tshr\t%s,#1\n",regnames[rp.r1]);
+ emit(f,"\tbmov\t%s.15,%s.0\n",regnames[rp.r1],regnames[rp.r2]);
+ emit(f,"\t%s\t%s,#1\n",s,regnames[rp.r2]);
+ } else {
+/* rfi: warning should be raised in corresponding case (see TODO above)
+ if(l<1||l>15) ierror(0);
+*/
+ BSET(regs_modified,tp);
+ emit(f,"\tmov\t%s,%s\n",regnames[tp],regnames[rp.r2]);
+ emit(f,"\tshr\t%s,#%ld\n",regnames[rp.r1],l);
+ emit(f,"\t%s\t%s,#%ld\n",s,regnames[rp.r2],l);
+ emit(f,"\tshl\t%s,#%ld\n",regnames[tp],16-l);
+ emit(f,"\tor\t%s,%s\n",regnames[rp.r1],regnames[tp]);
+ }
+ }else if(c==LSHIFT){
+ l=zm2l(vmax);
+/* rfi: new generation for constant left shift */
+ if( l < 0) {
+ /* TODO: we should raise a warning */
+ /* Implementation dependent: negative shift is same as null shift */
+ /* avoid shift generation */
+ } else if( l > 31) {
+ /* TODO: we should raise a warning */
+ /* Implementation dependent: same behaviour as non const shift */
+ emit(f,"\tmov\t%s,#0\n",regnames[rp.r1]);
+ emit(f,"\tmov\t%s,%s\n",regnames[rp.r2],regnames[rp.r1]);
+ } else if( l > 15) {
+ emit(f,"\tmov\t%s,%s\n",regnames[rp.r2],regnames[rp.r1]);
+ emit(f,"\tmov\t%s,#0\n",regnames[rp.r1]);
+ l -= 16 ;
+ if( l > 0)
+ emit(f,"\tshl\t%s,#%ld\n",regnames[rp.r2],l);
+ } else if( l == 0) {
+ /* avoid shift generation */
+ } else if( l == 1) {
+ emit(f,"\tadd\t%s,%s\n",regnames[rp.r1],regnames[rp.r1]);
+ emit(f,"\taddc\t%s,%s\n",regnames[rp.r2],regnames[rp.r2]);
+ } else
+/* rfi: warning should be raised in corresponding case (see TODO above)
+ if(l<1||l>15) ierror(0);
+*/
+ if(l==2){
+ emit(f,"\tadd\t%s,%s\n",regnames[rp.r1],regnames[rp.r1]);
+ emit(f,"\taddc\t%s,%s\n",regnames[rp.r2],regnames[rp.r2]);
+ emit(f,"\tadd\t%s,%s\n",regnames[rp.r1],regnames[rp.r1]);
+ emit(f,"\taddc\t%s,%s\n",regnames[rp.r2],regnames[rp.r2]);
+ }else{
+ BSET(regs_modified,tp);
+ emit(f,"\tmov\t%s,%s\n",regnames[tp],regnames[rp.r1]);
+ emit(f,"\tshl\t%s,#%ld\n",regnames[rp.r1],l);
+ emit(f,"\tshl\t%s,#%ld\n",regnames[rp.r2],l);
+ emit(f,"\tshr\t%s,#%ld\n",regnames[tp],16-l);
+ emit(f,"\tor\t%s,%s\n",regnames[rp.r2],regnames[tp]);
+ }
+ }else{
+ l=zm2l(zmand(vmax,l2zm(65535L)));
+ emit(f,"\t%s\t%s,#%ld\n",s,regnames[rp.r1],l);
+ l=zm2l(zmrshift(vmax,l2zm(16L)));
+ s=longcmd(s);
+ if(!short_add) emit(f,"\t%s\t%s,#%ld\n",s,regnames[rp.r2],l);
+ }
+ }else{
+ emit(f,"\t%s%s\t%s,",s,x_t[t&NQ],(t&NQ)==CHAR?bregnames[reg]:regnames[reg]);
+ emit_obj(f,&p->q2,t);emit(f,"\n");
+ }
+ }else if(p->q2.flags&VARADR){
+ p->q2.flags&=~VARADR;
+ if(reg_pair(reg,&rp)){
+ emit(f,"\t%s\t%s,#SOF ",s,regnames[rp.r1]);emit_obj(f,&p->q2,t);emit(f,"\n");
+ s=longcmd(s);
+ if(!short_add)
+ emit(f,"\t%s\t%s,#SEG ",s,regnames[rp.r2]);isseg=1;emit_obj(f,&p->q2,t);emit(f,"\n");
+ }else{
+ emit(f,"\t%s\t%s,#",s,regnames[reg]);emit_obj(f,&p->q2,t);emit(f,"\n");
+ }
+ p->q2.flags|=VARADR;
+ }else if(p->q2.flags&DREFOBJ){
+ int seg=0,sof=0;
+ /* if(!(p->q2.flags®)) ierror(0);*/
+ if(reg_pair(p->q2.reg,&rp)){
+ seg=rp.SEG;sof=rp.SOF;
+ if(!short_add&®_pair(reg,&rp)){
+ emit(f,"\texts\t%s,#2\n",regnames[seg]);
+ }else
+ emit(f,"\texts\t%s,#1\n",regnames[seg]);
+ }
+ if(reg_pair(reg,&rp)){
+ if(scratchreg(p->q2.reg,p)){
+ emit(f,"\t%s\t%s,[%s+]\n",s,regnames[rp.r1],regnames[sof?sof:p->q2.reg]);
+ s=longcmd(s);
+ if(!short_add) emit(f,"\t%s\t%s,[%s]\n",s,regnames[rp.r2],regnames[sof?sof:p->q2.reg]);
+ }else{
+ emit(f,"\t%s\t%s,[%s]\n",s,regnames[rp.r1],regnames[sof?sof:p->q2.reg]);
+ s=longcmd(s);
+ if(!short_add){
+ BSET(regs_modified,tp);
+ emit(f,"\tmov\t%s,[%s+#2]\n",regnames[tp],regnames[sof?sof:p->q2.reg]);
+ emit(f,"\t%s\t%s,%s\n",s,regnames[rp.r2],regnames[tp]);
+ }
+ }
+ }else{
+ emit(f,"\t%s%s\t%s,",s,x_t[t&NQ],(t&NQ)==CHAR?bregnames[reg]:regnames[reg]);
+ emit_obj(f,&p->q2,t);emit(f,"\n");
+ }
+ }else if((p->q2.flags&(VAR|DREFOBJ))==VAR&&(p->q2.v->storage_class==AUTO||p->q2.v->storage_class==REGISTER)){
+ long l=voff(&p->q2);
+ if(reg_pair(reg,&rp)){
+ if(l){
+ BSET(regs_modified,tp);
+ emit(f,"\tmov\t%s,[%s+#%ld]\n",regnames[tp],regnames[sp],l);
+ emit(f,"\t%s\t%s,%s\n",s,regnames[rp.r1],regnames[tp]);
+ }else
+ emit(f,"\t%s\t%s,[%s]\n",s,regnames[rp.r1],regnames[sp]);
+ s=longcmd(s);
+ if(!short_add){
+ BSET(regs_modified,tp);
+ emit(f,"\tmov\t%s,[%s+#%ld]\n",regnames[tp],regnames[sp],l+2);
+ emit(f,"\t%s\t%s,%s\n",s,regnames[rp.r2],regnames[tp]);
+ }
+ }else{
+ if(l){
+ BSET(regs_modified,tp);
+ emit(f,"\tmov%s\t%s,[%s+#%ld]\n",x_t[t&NQ],(t&NQ)==CHAR?bregnames[tp]:regnames[tp],regnames[sp],l);
+ emit(f,"\t%s%s\t%s,%s\n",s,x_t[t&NQ],(t&NQ)==CHAR?bregnames[reg]:regnames[reg],(t&NQ)==CHAR?bregnames[tp]:regnames[tp]);
+ }else
+ emit(f,"\t%s%s\t%s,[%s]\n",s,x_t[t&NQ],(t&NQ)==CHAR?bregnames[reg]:regnames[reg],regnames[sp]);
+ }
+ }else
+ ierror(0);
+ if(c==MULT) emit(f,"\tmov\t%s,MDL\n",regnames[reg]);
+ /*FIXME:signed*/
+ if(short_add==1) emit(f,"\t%s\t%s,#0\n",s,regnames[rp.r2]);
+ if(c!=COMPARE) save_result(f,reg,p,t);
+ if(!ISLWORD(t)||((c==ADD||c==SUB||c==ADDI2P||c==SUBIFP)&&!short_add)){
+ cc=&p->z;cc_t=t;
+ }else
+ cc=0;
+ continue;
+ }
+ ierror(0);
+ }
+ if(notpopped){
+ emit(f,"\tadd\t%s,#%ld\n",regnames[sp],notpopped);
+ pop(notpopped,0);notpopped=0;
+ }
+ function_bottom(f,v,loff);
+}
+
+int shortcut(int c,int t)
+{
+ if(c==COMPARE||c==AND||c==OR||c==XOR) return 1;
+ if((t&NQ)!=BIT&&(c==ADD||c==SUB)) return 1;
+ return 0;
+}
+
+void cleanup_cg(FILE *f)
+{
+ struct fpconstlist *p;
+ unsigned char *ip;
+ if(f&&stack_check){
+ emit(f,"\t%s\t%s__stack_check\n",public,idprefix);
+ }
+ while(p=firstfpc){
+ if(f){
+ new_section(f,NDATA);
+ emit(f,even);
+ emit(f,"%s%d:\n\t%s\t",labprefix,p->label,TASKING?dct[SHORT]:vdct[SHORT]);
+ ip=(unsigned char *)&p->val.vdouble;
+ emit(f,"0x%02x%02x%02x%02x",ip[3],ip[2],ip[1],ip[0]);
+ if((p->typ&NQ)==DOUBLE||(p->typ&NQ)==LDOUBLE){
+ emit(f,",0x%02x%02x%02x%02x",ip[7],ip[6],ip[5],ip[4]);
+ }
+ emit(f,"\n");
+ }
+ firstfpc=p->next;
+ free(p);
+ }
+ if(f&&TASKING) emit(f,"%s\tREGDEF R0-R15\n\tend\n",sec_end);
+}
+
+int reg_parm(struct reg_handle *p,struct Typ *t,int mode,struct Typ *fkt)
+{
+ int f=t->flags&NQ;
+ if(!ISSCALAR(f)) return 0;
+ if(p->gpr>3||mode) return 0;
+ if(f==LLONG||f==DOUBLE||f==LDOUBLE)
+ return 0;
+ else if(f==LONG||f==FPOINTER||f==HPOINTER){
+ if(p->gpr==0) {p->gpr=2;return 23;}
+ if(p->gpr==1) {p->gpr=3;return 22;}
+ if(p->gpr==2) {p->gpr=4;return 21;}
+ return 0;
+ }else
+ return 13+p->gpr++;
+}
+
+void insert_const(union atyps *p,int t)
+/* Traegt Konstante in entprechendes Feld ein. */
+{
+ if(!p) ierror(0);
+/* *p = (union atyps) 0 ; /* rfi: clear unused bits */
+ t&=NU;
+ if(t==BIT) {if(zmeqto(zc2zm(vchar),l2zm(0L))) p->vchar=zm2zc(l2zm(0L)); else p->vchar=zm2zc(l2zm(1L));return;}
+ if(t==CHAR) {p->vchar=vchar;return;}
+ if(t==SHORT) {p->vshort=vshort;return;}
+ if(t==INT) {p->vint=vint;return;}
+ if(t==LONG) {p->vlong=vlong;return;}
+ if(t==LLONG) {p->vllong=vllong;return;}
+ if(t==MAXINT) {p->vmax=vmax;return;}
+ if(t==(UNSIGNED|BIT)) {if(zumeqto(zuc2zum(vuchar),ul2zum(0UL))) p->vuchar=zum2zuc(ul2zum(0UL)); else p->vuchar=zum2zuc(ul2zum(1UL));return;}
+ if(t==(UNSIGNED|CHAR)) {p->vuchar=vuchar;return;}
+ if(t==(UNSIGNED|SHORT)) {p->vushort=vushort;return;}
+ if(t==(UNSIGNED|INT)) {p->vuint=vuint;return;}
+ if(t==(UNSIGNED|LONG)) {p->vulong=vulong;return;}
+ if(t==(UNSIGNED|LLONG)) {p->vullong=vullong;return;}
+ if(t==(UNSIGNED|MAXINT)) {p->vumax=vumax;return;}
+ if(t==FLOAT) {p->vfloat=vfloat;return;}
+ if(t==DOUBLE) {p->vdouble=vdouble;return;}
+ if(t==LDOUBLE) {p->vldouble=vldouble;return;}
+ if(t==NPOINTER) {p->vuint=vuint;return;}
+ if(t==FPOINTER||t==HPOINTER) {p->vulong=vulong;return;}
+}
+void eval_const(union atyps *p,int t)
+/* Weist bestimmten globalen Variablen Wert einer CEXPR zu. */
+{
+ int f=t&NQ;
+ if(!p) ierror(0);
+ if(f==MAXINT||(f>=BIT&&f<=LLONG)){
+ if(!(t&UNSIGNED)){
+ if(f==BIT){
+ if(zmeqto(zc2zm(p->vchar),l2zm(0L))) vmax=l2zm(0L); else vmax=l2zm(1L);
+ }else if(f==CHAR) vmax=zc2zm(p->vchar);
+ else if(f==SHORT)vmax=zs2zm(p->vshort);
+ else if(f==INT) vmax=zi2zm(p->vint);
+ else if(f==LONG) vmax=zl2zm(p->vlong);
+ else if(f==LLONG) vmax=zll2zm(p->vllong);
+ else if(f==MAXINT) vmax=p->vmax;
+ else ierror(0);
+ vumax=zm2zum(vmax);
+ vldouble=zm2zld(vmax);
+ }else{
+ if(f==BIT){
+ if(zumeqto(zuc2zum(p->vuchar),ul2zum(0UL))) vumax=ul2zum(0UL); else vumax=ul2zum(1UL);
+ }else if(f==CHAR) vumax=zuc2zum(p->vuchar);
+ else if(f==SHORT)vumax=zus2zum(p->vushort);
+ else if(f==INT) vumax=zui2zum(p->vuint);
+ else if(f==LONG) vumax=zul2zum(p->vulong);
+ else if(f==LLONG) vumax=zull2zum(p->vullong);
+ else if(f==MAXINT) vumax=p->vumax;
+ else ierror(0);
+ vmax=zum2zm(vumax);
+ vldouble=zum2zld(vumax);
+ }
+ }else{
+ if(ISPOINTER(f)){
+ if(f==NPOINTER)
+ vumax=zui2zum(p->vuint);
+ else
+ vumax=zul2zum(p->vulong);
+ vmax=zum2zm(vumax);vldouble=zum2zld(vumax);
+ }else{
+ if(f==FLOAT) vldouble=zf2zld(p->vfloat);
+ else if(f==DOUBLE) vldouble=zd2zld(p->vdouble);
+ else vldouble=p->vldouble;
+ vmax=zld2zm(vldouble);
+ vumax=zld2zum(vldouble);
+ }
+ }
+ vfloat=zld2zf(vldouble);
+ vdouble=zld2zd(vldouble);
+ vuchar=zum2zuc(vumax);
+ vushort=zum2zus(vumax);
+ vuint=zum2zui(vumax);
+ vulong=zum2zul(vumax);
+ vullong=zum2zull(vumax);
+ vchar=zm2zc(vmax);
+ vshort=zm2zs(vmax);
+ vint=zm2zi(vmax);
+ vlong=zm2zl(vmax);
+ vllong=zm2zll(vmax);
+}
+void printval(FILE *f,union atyps *p,int t)
+/* Gibt atyps aus. */
+{
+ t&=NU;
+ if(t==BIT){fprintf(f,"B");vmax=zc2zm(p->vchar);fprintf(f,"%d",!zmeqto(vmax,l2zm(0L)));}
+ if(t==(UNSIGNED|BIT)){fprintf(f,"UB");vumax=zuc2zum(p->vuchar);fprintf(f,"%d",!zumeqto(vmax,ul2zum(0UL)));}
+ if(t==CHAR){fprintf(f,"C");vmax=zc2zm(p->vchar);printzm(f,vmax);}
+ if(t==(UNSIGNED|CHAR)){fprintf(f,"UC");vumax=zuc2zum(p->vuchar);printzum(f,vumax);}
+ if(t==SHORT){fprintf(f,"S");vmax=zs2zm(p->vshort);printzm(f,vmax);}
+ if(t==(UNSIGNED|SHORT)){fprintf(f,"US");vumax=zus2zum(p->vushort);printzum(f,vumax);}
+ if(t==FLOAT){fprintf(f,"F");vldouble=zf2zld(p->vfloat);printzld(f,vldouble);}
+ if(t==DOUBLE){fprintf(f,"D");vldouble=zd2zld(p->vdouble);printzld(f,vldouble);}
+ if(t==LDOUBLE){fprintf(f,"LD");printzld(f,p->vldouble);}
+ if(t==INT){fprintf(f,"I");vmax=zi2zm(p->vint);printzm(f,vmax);}
+ if(t==(UNSIGNED|INT)||t==NPOINTER){fprintf(f,"UI");vumax=zui2zum(p->vuint);printzum(f,vumax);}
+ if(t==LONG){fprintf(f,"L");vmax=zl2zm(p->vlong);printzm(f,vmax);}
+ if(t==(UNSIGNED|LONG)||t==FPOINTER||t==HPOINTER){fprintf(f,"UL");vumax=zul2zum(p->vulong);printzum(f,vumax);}
+ if(t==LLONG){fprintf(f,"LL");vmax=zll2zm(p->vllong);printzm(f,vmax);}
+ if(t==(UNSIGNED|LLONG)){fprintf(f,"ULL");vumax=zull2zum(p->vullong);printzum(f,vumax);}
+ if(t==MAXINT) printzm(f,p->vmax);
+ if(t==(UNSIGNED|MAXINT)) printzum(f,p->vumax);
+}
+void emitval(FILE *f,union atyps *p,int t)
+/* Gibt atyps aus. */
+{
+ t&=NU;
+ if(t==BIT){vmax=zc2zm(p->vchar);emit(f,"%d",!zmeqto(vmax,l2zm(0L)));}
+ if(t==(UNSIGNED|BIT)){vumax=zuc2zum(p->vuchar);emit(f,"%d",!zumeqto(vumax,ul2zum(0UL)));}
+ if(t==CHAR){vmax=zc2zm(p->vchar);emitzm(f,vmax);}
+ if(t==(UNSIGNED|CHAR)){vumax=zuc2zum(p->vuchar);emitzum(f,vumax);}
+ if(t==SHORT){vmax=zs2zm(p->vshort);emitzm(f,vmax);}
+ if(t==(UNSIGNED|SHORT)){vumax=zus2zum(p->vushort);emitzum(f,vumax);}
+ if(t==FLOAT){vldouble=zf2zld(p->vfloat);emitzld(f,vldouble);}
+ if(t==DOUBLE){vldouble=zd2zld(p->vdouble);emitzld(f,vldouble);}
+ if(t==LDOUBLE){emitzld(f,p->vldouble);}
+ if(t==INT){vmax=zi2zm(p->vint);emitzm(f,vmax);}
+ if(t==(UNSIGNED|INT)||t==NPOINTER){vumax=zui2zum(p->vuint);emitzum(f,vumax);}
+ if(t==LONG){vmax=zl2zm(p->vlong);emitzm(f,vmax);}
+ if(t==(UNSIGNED|LONG)||t==FPOINTER||t==HPOINTER){vumax=zul2zum(p->vulong);emitzum(f,vumax);}
+ if(t==LLONG){vmax=zll2zm(p->vllong);emitzm(f,vmax);}
+ if(t==(UNSIGNED|LLONG)){vumax=zull2zum(p->vullong);emitzum(f,vumax);}
+ if(t==MAXINT) emitzm(f,p->vmax);
+ if(t==(UNSIGNED|MAXINT)) emitzum(f,p->vumax);
+}
+void conv_typ(struct Typ *p)
+/* Erzeugt extended types in einem Typ. */
+{
+ char *attr;
+ while(p){
+ if(ISPOINTER(p->flags)){
+ p->flags=((p->flags&~NU)|POINTER_TYPE(p->next));
+ if(attr=p->next->attr){
+ if(strstr(attr,STR_NEAR))
+ p->flags=((p->flags&~NU)|NPOINTER);
+ if(strstr(attr,STR_FAR))
+ p->flags=((p->flags&~NU)|FPOINTER);
+ if(strstr(attr,STR_HUGE))
+ p->flags=((p->flags&~NU)|HPOINTER);
+ }
+ }
+ if(ISINT(p->flags)&&(attr=p->attr)&&strstr(attr,"bit"))
+ p->flags=((p->flags&~NU)|BIT);
+ p=p->next;
+ }
+}
+
+void init_db(FILE *f)
+{
+}
+
+void cleanup_db(FILE *f)
+{
+}
+
+char *use_libcall(int c,int t,int t2)
+{
+ static char fname[16];
+ char *ret=0,*tt;
+
+ if(c==COMPARE){
+ if((t&NQ)==LLONG||ISFLOAT(t)){
+ sprintf(fname,"__cmp%s%s%ld",(t&UNSIGNED)?"u":"s",ISFLOAT(t)?"flt":"int",zm2l(sizetab[t&NQ])*8);
+ ret=fname;
+ }
+ }else{
+ t&=NU;
+ t2&=NU;
+ if(t==LDOUBLE) t=DOUBLE;
+ if(t2==LDOUBLE) t2=DOUBLE;
+ if(c==CONVERT){
+ if(t==t2) return 0;
+ if(t==FLOAT&&t2==DOUBLE) return "__flt64toflt32";
+ if(t==DOUBLE&&t2==FLOAT) return "__flt32toflt64";
+
+ if(ISFLOAT(t)){
+ sprintf(fname,"__%cint%ldtoflt%d",(t2&UNSIGNED)?'u':'s',zm2l(sizetab[t2&NQ])*8,(t==FLOAT)?32:64);
+ ret=fname;
+ }
+ if(ISFLOAT(t2)&&(t&NU)==LLONG){
+ sprintf(fname,"__flt%dto%cint%ld",((t2&NU)==FLOAT)?32:64,(t&UNSIGNED)?'u':'s',zm2l(sizetab[t&NQ])*8);
+ ret=fname;
+ }
+ }
+ if((t&NQ)==LLONG||ISFLOAT(t)){
+ if((c>=LSHIFT&&c<=MOD)||(c>=OR&&c<=AND)||c==KOMPLEMENT||c==MINUS){
+ if(t==(UNSIGNED|LLONG)&&(c==DIV||c==MOD||c==RSHIFT)){
+ sprintf(fname,"__%suint64",ename[c]);
+ ret=fname;
+ }else if((t&NQ)==LLONG){
+ sprintf(fname,"__%sint64",ename[c]);
+ ret=fname;
+ }else{
+ sprintf(fname,"__%s%s%s%ld",ename[c],(t&UNSIGNED)?"u":"",ISFLOAT(t)?"flt":"int",zm2l(sizetab[t&NQ])*8);
+ ret=fname;
+ }
+ }
+ }
+ }
+
+
+ return ret;
+}