2 # --register-prefix-optional --bitwise-or
4 .macro ldarg arg, stacksz, reg
5 move.l (4 + \arg * 4 + \stacksz)(%sp), \reg
9 .global read_joy_responses /* u8 *rbuf */
59 0: /* wait for special code */
70 0: /* wait for special code to end */
75 move.l #8000000/50/18, d2
77 0: /* wait enough for teensy to setup it's stuff */
86 * when communicating with 3.3V teensy:
87 * - no nops: see old value on multiple pins randomly
88 * - 1 nop: only TR often shows old value
96 .global test_joy_read_log /* u8 *dest, int size, int do_sync */
102 movea.l #0xa10003, a0
129 /* broken on Mega-ED v9?? */
143 /* delay for teensy, 128 not enough.. */
155 .global test_joy_read_log_vsync /* u8 *dest, int size */
156 test_joy_read_log_vsync:
159 movem.l d2-d7/a2, -(sp)
160 movea.l #0xa10003, a0
161 movea.l #0xc00005, a2
179 /* wait for next vsync */
191 movem.l (sp)+, d2-d7/a2
195 .global test_byte_write /* u8 *dest, int size, int seed */
237 .global run_game /* u16 mapper, int tas_sync */
242 movea.l #0xa10000, a6
243 movea.l #0xc00000, a5
244 movea.l #0xc00005, a4
245 movea.l #0xc00004, a3
249 move.b d4, (0x09,a6) /* CtrlA */
250 move.b d2, (0x0b,a6) /* CtrlB */
251 move.b d2, (0x0d,a6) /* CtrlC */
252 move.b d2, (0x13,a6) /* S-CtrlA */
253 move.b d3, (0x0f,a6) /* TxDataA */
254 move.b d2, (0x19,a6) /* S-CtrlB */
255 move.b d3, (0x15,a6) /* TxDataB */
256 move.b d2, (0x1f,a6) /* S-CtrlC */
257 move.b d3, (0x1b,a6) /* TxDataC */
259 /* set up for vram write */
260 move.l #0x40000000, (a3)
263 move.l #0x10000/4/4-1, d0
275 lea (run_game_r,pc), a0
276 move.l #(run_game_r_end - run_game_r)/2-1, d0
279 lea (run_game_r_tas,pc), a0
280 move.l #(run_game_r_tas_end - run_game_r_tas)/2-1, d0
288 move.w #0x3210, (0xA13006)
290 move.w d7, (0xA13010)
291 move.w #0, (0xA13000)
299 move.w #0x3210, (0xA13006)
300 move.w d7, (0xA13010)
301 move.w #0, (0xA13000)
306 0: /* wait for special code */
317 0: /* wait for special code to end */
321 /* wait for active display */
324 btst d0, (a4) /* 8 */
330 /* flood the VDP FIFO */
340 move.l #0x93049400, (a3) /* DMALEN LO/HI = 0x0008 */
341 move.l #0x95009601, (a3) /* DMA SRC LO/MID */
342 move.l #0x977f8114, (a3) /* DMA SRC HI/MODE, Turn off Display */
343 move.l #0xc0000080, (a3) /* start DMA */
346 move.b d2, (0x09,a6) /* CtrlA */
351 # vim:filetype=asmM68k:ts=4:sw=4:expandtab