scc

commit 1f0c930bc6f1bda3337f5b29e1787791bcec4a9f
parent d23cd64c95e731617ed7906bbe033d6b3ab43bfa
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Thu, 19 Sep 2019 20:40:05 +0200

[as/x86] Add more comments in the opcode table

Diffstat:
M
src/cmd/as/target/x86/x86.dat
 | 
4
++++

1 file changed, 4 insertions(+), 0 deletions(-)
diff --git a/src/cmd/as/target/x86/x86.dat b/src/cmd/as/target/x86/x86.dat
@@ -28,6 +28,10 @@ RET	none	1	0xc3	noargs	I286,I386,AMD64
 # 8 bit arithmetic operations
 ADDB	reg8,reg8	2	0x00	reg8_reg8	I286,I386,AMD64
 ADDB	imm8,reg8	3	0x80	imm8_reg8	I286,I386,AMD64
+
+# 16 bit arithmetic operations
 ADDW	reg16,reg16	2	0x01	reg16_reg16	I286
 ADDW	reg16,reg16	3	0x66,0x01	reg16_reg16	I386,AMD64
+
+# 32 bit arithmetic operations
 ADDL	reg32,reg32	2	0x01	reg32_reg32	I386,AMD64