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Applerm-II
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Implement _cp and _inc

This commit is contained in:
Takashi Toyoshima 2014-12-07 11:47:22 +09:00
parent b86a32323e
commit 90feea53ed
1 changed files with 23 additions and 2 deletions
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@ -347,7 +347,24 @@
.endm
.macro _cp reg
// TODO
mov r1, \reg
subs r0, r1, r0
__cl (FLAG_N | FLAG_Z | FLAG_C)
beq 1f
bcc 3f
__se FLAG_C
b 3f
1:
bcc 2f
__se FLAG_C
2:
__se FLAG_Z
3:
movs r1, #0x80
tst r0, r1
beq 1f
__se FLAG_N
1:
.endm
.macro _dec
@ -359,7 +376,11 @@
.endm
.macro _inc
// TODO
mov r0, RA
subs r0, r0, #1
mov RA, r0
_flag_nz
adds PC, PC, #1
.endm
.macro _jmp