diff options
Diffstat (limited to 'main.asm')
| -rw-r--r-- | main.asm | 42 |
1 files changed, 25 insertions, 17 deletions
@@ -223,6 +223,7 @@ F_DEC_W MACRO __main: movem.l d0-d7/a0-a6,-(sp) bsr emu_setup + bsr emu_run movem.l (sp)+,d0-d7/a0-a6 rts @@ -232,8 +233,25 @@ __main: emu_setup: movea emu_plain_op,a5 - lea emu_fetch(pc),a2 - ;; XXX finish + lea emu_run(pc),a2 + + ;; Allocate memory pages; for now I assume this succeeds + move.l #$4000,-(a7) + ROM_CALL malloc + move.l a0,ref_0 + + move.l #$4000,-(a7) + ROM_CALL malloc + move.l a0,ref_1 + + move.l #$4000,-(a7) + ROM_CALL malloc + move.l a0,ref_2 + + move.l #$4000,-(a7) + ROM_CALL malloc + move.l a0,ref_3 + rts @@ -305,27 +323,17 @@ underef_thatsit: ;; ========== ======================================================== ;; ========================================================================= -emu_fetch: - ;; Move this into DONE, saving 8 more cycles but using extra - ;; space. - ;; - ;; Likely impossible to get rid of the clr - clr.w d0 ; 4 cycles - move.b (a4)+,d0 ; 8 cycles - rol.w #5,d0 ; 16 cycles adjust to actual alignment - jmp 0(a5,d0.w) ; 14 cycles - ;; overhead: 42 cycles - +emu_run: + ;; XXX: make this actually return + DONE + rts include "opcodes.asm" emu_op_undo_cb: - - movea.w emu_fetch(pc),a2 - emu_op_undo_dd: emu_op_undo_ed: emu_op_undo_fd: - + rts |