gbdk-releases/gbdk-lib/libc/rrgb/crt0.s
2015-01-10 16:25:06 +01:00

62 lines
615 B
ArmAsm

;; Generic crt0.s for rrgb
.globl _main
.area _HEADER (ABS)
;; Reset vector
.org 0
jp init
.org 0x08
reti
.org 0x10
reti
.org 0x18
reti
.org 0x20
reti
.org 0x28
reti
.org 0x30
reti
.org 0x38
reti
.org 0x100
jp 0x150
.org 0x150
init:
di
;; Stack at the top of memory.
ld sp,#0xdfff
call _main
jp _exit
;; Ordering of segments for the linker.
.area _CODE
.area _DATA
__clock::
ld a,#2
rst 0x00
ret
_getsp::
ld hl,#0
add hl,sp
ret
__printTStates::
ld a,#3
rst 0x00
ret
_exit::
;; Exit - special code to the emulator
ld a,#1
rst 0x00
1$:
halt
jr 1$