32 lines
363 B
ArmAsm
32 lines
363 B
ArmAsm
|
.define .blm
|
||
|
|
|
||
|
|
! Block move
|
||
|
|
! Expects in de-reg: size of block
|
||
|
|
! Expects on stack: destination address
|
||
|
|
! source address
|
||
|
|
|
||
|
|
.blm: pop h
|
||
|
|
shld .retadr
|
||
|
|
mov h,b
|
||
|
|
mov l,c
|
||
|
|
shld .bcreg
|
||
|
|
|
||
|
|
pop h ! hl = destination address
|
||
|
|
pop b ! bc = source address
|
||
|
|
|
||
|
|
1: ldax b
|
||
|
|
mov m,a
|
||
|
|
inx b
|
||
|
|
inx h
|
||
|
|
dcx d
|
||
|
|
mov a,d
|
||
|
|
ora e
|
||
|
|
jnz 1b
|
||
|
|
|
||
|
|
lhld .bcreg
|
||
|
|
mov b,h
|
||
|
|
mov c,l
|
||
|
|
lhld .retadr
|
||
|
|
pchl
|
||
|
|
|