fix in csb: must be able to handle 0 cases

1988-03-17 09:24:01 +00:00 · 1988-03-17 09:24:01 +00:00 · 24e18a0eca
commit 24e18a0eca
parent 52d43d4889
3 changed files with 4 additions and 2 deletions
--- a/mach/ns/libem/csb.s
+++ b/mach/ns/libem/csb.s
@ -12,6 +12,8 @@
 .csb:
 	save[r2,r3]
 	movd 4(r1), r2		!number of entries
+	cmpqd 0, r2
+	beq 3f
 	movd r1, r3
 1:
 	addd 8, r3		!find addres of next index
--- a/mach/ns/libem/putchar.s
+++ b/mach/ns/libem/putchar.s
@ -15,6 +15,6 @@
 	addr	8(fp),tos
 	movqd	1,tos
 	bsr	_write
-	asjspb	-12
+	adjspb	-12
 	exit	[]
 	ret	0
--- a/mach/ns/libem/trp.s
+++ b/mach/ns/libem/trp.s
@ -22,7 +22,7 @@
 	movqd 0, @.trpreg
 	jsr r1
 3:
-	adjspd $-4
+	adjspd -4
 	restore [r0, r1]
 	ret 4
 2: