From: Dennis Ritchie <dmr@research.uucp>
Date: Fri, 9 Jun 1972 12:00:16 +0000 (-0500)
Subject: Research V2 development
X-Git-Tag: Research-V2~24
X-Git-Url: https://git.subgeniuskitty.com/unix-history/.git/commitdiff_plain/6e35445f9423cb5bd8d34727fac790edcbfaf049

Research V2 development
Work on file c/cctab.s

Synthesized-from: v2
---

diff --git a/c/cctab.s b/c/cctab.s
new file mode 100644
index 0000000000..97886397e8
--- /dev/null
+++ b/c/cctab.s
@@ -0,0 +1,118 @@
+/ c code tables-- set condition codes
+
+.globl	_cctab
+
+_cctab=.;.+2
+	20.;	rest
+	21.;	rest
+	22.;	rest
+	30.;	rest
+	31.;	rest
+	34.;	rest
+	35.;	rest
+	36.;	rest
+	37.;	rest
+	40.;	rest
+	41.;	rest
+	42.;	rest
+	43.;	rest
+	44.;	rest
+	45.;	rest
+	46.;	rest
+	47.;	rest
+	48.;	rest
+	60.;	cc60
+	61.;	cc60
+	62.;	cc60
+	63.;	cc60
+	64.;	cc60
+	65.;	cc60
+	66.;	cc60
+	67.;	cc60
+	68.;	cc60
+	69.;	cc60
+	70.;	rest
+	71.;	rest
+	72.;	rest
+	73.;	rest
+	74.;	rest
+	75.;	rest
+	76.;	rest
+	77.;	rest
+	78.;	rest
+	79.;	rest
+	80.;	rest
+
+/ relationals
+cc60:
+%a,z
+	tstB1	A1
+
+%n*,z
+	F*
+	tstB1	#1(R)
+
+%n,z
+	F
+	tst	R
+
+%a,a
+	cmpBE	A1,A2
+
+%n*,a
+	F*
+	cmpBE	#1(R),A2
+
+%n,a
+	F
+	cmpB2	R,A2
+
+%n*,e*
+	F*
+	S1*
+	cmpBE	#1(R),#2(R1)
+
+%n*,e
+	F*
+	S1
+	cmpB1	#1(R),R1
+
+%n,e*
+	F
+	S1*
+	cmpB2	R,#2(R1)
+
+%n,e
+	F
+	S1
+	cmp	R,R1
+
+%n*,n*
+	FS*
+	S*
+	cmpBE	(sp)+,#2(R)
+
+%n*,n
+	FS*
+	S
+	cmpB1	*(sp)+,R
+
+%n,n*
+	FS
+	S*
+	cmpB2	(sp)+,#2(R)
+
+%n,n
+	FS
+	S
+	cmp	(sp)+,R
+
+/ set codes right
+rest:
+%n,n
+	H
+
+.data
+.even
+.text
+