mirror of
https://github.com/cc65/cc65.git
synced 2024-11-18 15:05:14 +00:00
47 lines
821 B
ArmAsm
47 lines
821 B
ArmAsm
|
;
|
||
|
|
; Ullrich von Bassewitz, 20.11.2000
|
||
|
|
;
|
||
|
|
; CC65 runtime: Support for calling module constructors/destructors
|
||
|
|
;
|
||
|
|
; The condes routine must be called with the table address in a/x and the
|
||
|
|
; number of vectors in the table in y. The current implementation limits
|
||
|
|
; the table size to 128 bytes (64 vectors) but this shouldn't be problem
|
||
|
|
; for now and may be changed later.
|
||
|
|
;
|
||
|
|
|
||
|
|
.export condes
|
||
|
|
.import jmpvec
|
||
|
|
|
||
|
|
.code
|
||
|
|
|
||
|
|
condes: sta getbyt+1
|
||
|
|
stx getbyt+2
|
||
|
|
sty index
|
||
|
|
|
||
|
|
loop: ldy index
|
||
|
|
beq done
|
||
|
|
dey
|
||
|
|
jsr getbyt
|
||
|
|
sta jmpvec+2
|
||
|
|
dey
|
||
|
|
jsr getbyt
|
||
|
|
sta jmpvec+1
|
||
|
|
jsr jmpvec
|
||
|
|
jmp loop
|
||
|
|
|
||
|
|
done: rts
|
||
|
|
|
||
|
|
; --------------------------------------------------------------------------
|
||
|
|
; Data. The getbyte routine is placed in the data segment cause it's patched
|
||
|
|
; at runtime.
|
||
|
|
|
||
|
|
.bss
|
||
|
|
|
||
|
|
index: .byte 0
|
||
|
|
|
||
|
|
.data
|
||
|
|
|
||
|
|
getbyt: lda $FFFF,y
|
||
|
|
rts
|
||
|
|
|