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| author | Nao Pross <naopross@thearcway.org> | 2017-10-05 12:17:37 +0200 |
|---|---|---|
| committer | Nao Pross <naopross@thearcway.org> | 2017-10-05 12:17:37 +0200 |
| commit | f000d406809d8a7a0e71c388ebfb15d7564728e4 (patch) | |
| tree | 2284c66b0459e9456fb451feaa4290e5d99e4349 /sw/z80_tests/ram/crt0.s | |
| parent | Merge remote-tracking branch 'origin/atlas' into naopross (diff) | |
| download | z80uPC-f000d406809d8a7a0e71c388ebfb15d7564728e4.tar.gz z80uPC-f000d406809d8a7a0e71c388ebfb15d7564728e4.zip | |
Test units are now in their own folder 'z80_test', add programmer cli interface
Diffstat (limited to 'sw/z80_tests/ram/crt0.s')
| -rw-r--r-- | sw/z80_tests/ram/crt0.s | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/sw/z80_tests/ram/crt0.s b/sw/z80_tests/ram/crt0.s new file mode 100644 index 0000000..ac0698f --- /dev/null +++ b/sw/z80_tests/ram/crt0.s @@ -0,0 +1,54 @@ + .module crt0 + .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 0x66 + ld hl,#BEEF + reti + + .org 0x100 +init: + ;; Set stack pointer directly above top of memory. + ld sp,#0xFFFF + + ;; Start of the program + call _main + jp _exit + + ;; Ordering of segments for the linker. + .area _HOME + .area _CODE + .area _INITIALIZER + .area _GSINIT + .area _GSFINAL + + .area _DATA + .area _INITIALIZED + .area _BSEG + .area _BSS + .area _HEAP + + .area _CODE + +_exit:: +1$: + halt + jr 1$ |