From 5d5a09a5d0fd29ac2160780c2dd2a35b36ff206c Mon Sep 17 00:00:00 2001
From: sater <none@none>
Date: Tue, 16 Oct 1984 13:31:44 +0000
Subject: [PATCH] added code to generate code for ACK assembler. Works if
 ACK_ASS is defined.

---
 mach/pdp/cg/mach.c | 30 +++++++++++++++++++++++++++++-
 mach/pdp/cg/mach.h | 22 ++++++++++++++++++++++
 2 files changed, 51 insertions(+), 1 deletion(-)

diff --git a/mach/pdp/cg/mach.c b/mach/pdp/cg/mach.c
index dc478e499..faf167b67 100644
--- a/mach/pdp/cg/mach.c
+++ b/mach/pdp/cg/mach.c
@@ -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 ;
 			}
 		}
diff --git a/mach/pdp/cg/mach.h b/mach/pdp/cg/mach.h
index 7bacb57b1..eae2d5790 100644
--- a/mach/pdp/cg/mach.h
+++ b/mach/pdp/cg/mach.h
@@ -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
-- 
2.34.1