mirror of
https://github.com/cc65/cc65.git
synced 2024-11-18 00:07:21 +00:00
40 lines
483 B
ArmAsm
40 lines
483 B
ArmAsm
|
;
|
||
|
|
; Ullrich von Bassewitz, 08.08.1998
|
||
|
|
;
|
||
|
|
; void cputhex8 (unsigned char val);
|
||
|
|
; void cputhex16 (unsigned val);
|
||
|
|
;
|
||
|
|
|
||
|
|
.export _cputhex8, _cputhex16
|
||
|
|
.import _cputc
|
||
|
|
.import __hextab
|
||
|
|
|
||
|
|
|
||
|
|
_cputhex16:
|
||
|
|
pha ; Save low byte
|
||
|
|
txa ; Get high byte into A
|
||
|
|
jsr _cputhex8 ; Output high byte
|
||
|
|
pla ; Restore low byte and run into _cputhex8
|
||
|
|
|
||
|
|
_cputhex8:
|
||
|
|
pha ; Save the value
|
||
|
|
lsr a
|
||
|
|
lsr a
|
||
|
|
lsr a
|
||
|
|
lsr a
|
||
|
|
tay
|
||
|
|
lda __hextab,y
|
||
|
|
jsr _cputc
|
||
|
|
pla
|
||
|
|
and #$0F
|
||
|
|
tay
|
||
|
|
lda __hextab,y
|
||
|
|
jmp _cputc
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|