19 lines
266 B
ArmAsm
19 lines
266 B
ArmAsm
|
.define prstring
|
||
|
|
|
||
|
|
! print a string of characters to the console
|
||
|
|
! entry: de-reg points to the string
|
||
|
|
! string terminator is 0x00
|
||
|
|
! exit: de-reg points to string terminator
|
||
|
|
|
||
|
|
prstring:
|
||
|
|
push psw
|
||
|
|
1: ldax d
|
||
|
|
ora a
|
||
|
|
jz 2f
|
||
|
|
call putchar
|
||
|
|
inx d
|
||
|
|
jmp 1b
|
||
|
|
2: pop psw
|
||
|
|
ret
|
||
|
|
|