ack/mach/pdp/libem/printf.s

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ArmAsm
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.sect .text; .sect .rom; .sect .data; .sect .bss; .sect .text
.sect .text
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.define printf~
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! $Id$
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printf~:
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mov r2,-(sp)
mov r3,-(sp)
mov r4,-(sp)
mov sp,r3
mov $buff,r4
add $010,r3
mov (r3)+,r2
prloop:
movb (r2)+,r0
beq ready
cmpb r0,$045
bne 1f
movb (r2)+,r0
cmpb r0,$0144
beq 2f
cmpb r0,$0163
beq 3f
1: movb r0,(r4)+
br prloop
2: mov (r3)+,r1
bge 4f
movb $055,(r4)+
neg r1
4: jsr pc,printn
br prloop
printn:
clr r0
div $010,r0
beq 5f
mov r1,-(sp)
mov r0,r1
jsr pc,printn
mov (sp)+,r1
5: add $060,r1
movb r1,(r4)+
rts pc
3: mov (r3)+,r1
7: movb (r1)+,r0
bne 6f
br prloop
6: movb r0,(r4)+
br 7b
ready:
movb r0,(r4)+
sub $buff,r4
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mov r4,-(sp)
mov $buff,-(sp)
mov $01,-(sp)
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jsr pc,WRITE
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add $06,sp
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mov (sp)+,r4
mov (sp)+,r3
mov (sp)+,r2
rts pc
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.sect .bss
buff: .space 256