Files
unix-v6/source/s2/pfe.s
T
2018-01-27 22:35:41 +09:00

45 lines
492 B
ArmAsm

/ print last floating error
stst = 170300^tst
stst r1
cmp r1,$14
blos 1f
clr r1
1:
bic $1,r1
mov mesg(r1),r1
1:
movb (r1)+,ch
beq 1f
mov $1,r0
sys write; ch; 1
br 1b
1:
sys exit
mesg:
1f
2f
3f
4f
5f
6f
7f
8f
1: <No error.\n\0>
2: <Floating op code error\n\0>
3: <Floating divide check\n\0>
4: <Integer conversion error\n\0>
5: <Floating overflow\n\0>
6: <Floating underflow\n\0>
7: <Floating undefined\n\0>
8: <Floating maintennace trap\n\0>
.even
.bss
ch: .=.+2