48 lines
500 B
ArmAsm
48 lines
500 B
ArmAsm
.sect .text; .sect .rom; .sect .data; .sect .bss
|
|
.sect .text
|
|
.define printc,printd,prints
|
|
|
|
! argument in ax
|
|
! uses bx
|
|
prints:
|
|
xchg ax,bx
|
|
1:
|
|
movb al,(bx)
|
|
inc bx
|
|
testb al,al
|
|
jz 2f
|
|
call printc
|
|
jmp 1b
|
|
2:
|
|
ret
|
|
|
|
! argument in ax
|
|
! uses cx and dx
|
|
printd:
|
|
xor dx,dx
|
|
mov cx,10
|
|
div cx
|
|
test ax,ax
|
|
jz 1f
|
|
push dx
|
|
call printd
|
|
pop dx
|
|
1:
|
|
xchg ax,dx
|
|
addb al,'0'
|
|
|
|
! argument in ax
|
|
printc:
|
|
push ax
|
|
mov bx,sp
|
|
mov ax,1
|
|
push ax
|
|
push bx
|
|
push ax
|
|
call _write
|
|
pop bx
|
|
pop bx
|
|
pop bx
|
|
pop bx
|
|
ret
|