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added code to generate code for ACK assembler.

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Works if ACK_ASS is defined.
This commit is contained in:
sater 1984-10-16 13:31:44 +00:00
parent 9eb72b6ee8
commit 5d5a09a5d0
2 changed files with 51 additions and 1 deletions
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30
mach/pdp/cg/mach.c
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@ -49,11 +49,34 @@ con_mult(sz) word sz; {
if (sz != 4)
fatal("bad icon/ucon size");
#ifdef ACK_ASS
fprintf(codefile,".long %s\n",str);
#else
l = atol(str);
fprintf(codefile,"\t%o;%o\n",(int)(l>>16),(int)l);
#endif
}
/*
* The next function is difficult to do when not running on a PDP 11 or VAX
* The strategy followed is to assume the code generator is running on a PDP 11
* unless the ACK_ASS define is on.
* In the last case floating point constants are simply not handled
*/
con_float() {
#ifdef ACK_ASS
static int been_here;
if (argval != 4 && argval != 8)
fatal("bad fcon size");
fprintf(codefile,".long\t");
if (argval == 8)
fprintf(codefile,"F_DUM,");
fprintf(codefile,"F_DUM\n");
if ( !been_here++)
fprintf(stderr,"Warning : dummy float-constant(s)\n");
#else
double f;
register short *p,i;
@ -67,6 +90,7 @@ con_float() {
i = *p++;
}
fprintf(codefile,"\t%o;%o\n",i,*p++);
#endif
}
#ifdef REGVARS
@ -131,7 +155,7 @@ f_regsave() {
regsave(regstr,off,size) char *regstr; long off; {
fprintf(codefile,"/ Local %ld into %s\n",off,regstr);
fprintf(codefile,"%c Local %ld into %s\n",COMMENTCHAR,off,regstr);
/* commented away
#ifndef REGPATCH
fprintf(codefile,"mov %s,-(sp)\n",regstr);
@ -197,7 +221,11 @@ mes(type) word type; {
return ;
default:
strarg(argt) ;
#ifdef ACK_ASS
fprintf(codefile,".define %s\n",argstr) ;
#else
fprintf(codefile,".globl %s\n",argstr) ;
#endif
break ;
}
}

22
mach/pdp/cg/mach.h
View file

@ -1,12 +1,28 @@
/* $Header$ */
/* The next define switches between codegeneration for an ACK assembler
* or for the standard UNIX V7 assembler.
* If on code is generated for the ACK assembler.
*/
/* #define ACK_ASS /* code for ACK assembler */
#ifdef ACK_ASS
#define COMMENTCHAR '!'
#define ex_ap(y) fprintf(codefile,".extern %s\n",y)
#else
#define COMMENTCHAR '/'
#define ex_ap(y) fprintf(codefile,".globl %s\n",y)
#endif
#define in_ap(y) /* nothing */
#define newplb(x) fprintf(codefile,"%s:\n",x)
#define newilb(x) fprintf(codefile,"%s:\n",x)
#define newdlb(x) fprintf(codefile,"%s:\n",x)
#ifdef ACK_ASS
#define newlbss(l,x) fprintf(codefile,"%s:.space 0%o\n",l,x);
#else
#define newlbss(l,x) fprintf(codefile,"%s:.=.+0%o\n",l,x);
#endif
#define cst_fmt "$0%o"
#define off_fmt "0%o"
@ -16,9 +32,15 @@
#define hol_off "0%o+hol%d"
#ifdef ACK_ASS
#define con_cst(x) fprintf(codefile,".short 0%o\n",x)
#define con_ilb(x) fprintf(codefile,".short %s\n",x)
#define con_dlb(x) fprintf(codefile,".short %s\n",x)
#else
#define con_cst(x) fprintf(codefile,"0%o\n",x)
#define con_ilb(x) fprintf(codefile,"%s\n",x)
#define con_dlb(x) fprintf(codefile,"%s\n",x)
#endif
#define id_first '_'
#define BSS_INIT 0