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1 | #include "../pico_int.h" |
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2 | #include "../sound/ym2612.h" |
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3 | |
4 | struct Pico32x Pico32x; |
5 | |
6 | void Pico32xStartup(void) |
7 | { |
8 | elprintf(EL_STATUS|EL_32X, "32X startup"); |
9 | |
10 | PicoAHW |= PAHW_32X; |
11 | PicoMemSetup32x(); |
12 | |
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13 | sh2_init(&msh2); |
14 | sh2_reset(&msh2); |
15 | |
16 | sh2_init(&ssh2); |
17 | sh2_reset(&ssh2); |
18 | |
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19 | if (!Pico.m.pal) |
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20 | Pico32x.vdp_regs[0] |= P32XV_nPAL; |
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21 | |
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22 | emu_32x_startup(); |
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23 | } |
24 | |
25 | void Pico32xInit(void) |
26 | { |
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27 | } |
28 | |
29 | void PicoPower32x(void) |
30 | { |
31 | memset(&Pico32x, 0, sizeof(Pico32x)); |
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32 | |
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33 | Pico32x.regs[0] = 0x0082; // SH2 reset? |
34 | Pico32x.vdp_regs[0x0a/2] = P32XV_VBLK|P32XV_HBLK|P32XV_PEN; |
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35 | } |
36 | |
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37 | void PicoUnload32x(void) |
38 | { |
39 | if (Pico32xMem != NULL) |
40 | free(Pico32xMem); |
41 | Pico32xMem = NULL; |
42 | |
43 | PicoAHW &= ~PAHW_32X; |
44 | } |
45 | |
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46 | void PicoReset32x(void) |
47 | { |
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48 | extern int p32x_csum_faked; |
49 | p32x_csum_faked = 0; // tmp |
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50 | } |
51 | |
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52 | static void p32x_start_blank(void) |
53 | { |
54 | // enter vblank |
55 | Pico32x.vdp_regs[0x0a/2] |= P32XV_VBLK|P32XV_PEN; |
56 | |
57 | // swap waits until vblank |
58 | if ((Pico32x.vdp_regs[0x0a/2] ^ Pico32x.pending_fb) & P32XV_FS) { |
59 | Pico32x.vdp_regs[0x0a/2] &= ~P32XV_FS; |
60 | Pico32x.vdp_regs[0x0a/2] |= Pico32x.pending_fb; |
61 | Pico32xSwapDRAM(Pico32x.pending_fb ^ 1); |
62 | } |
63 | } |
64 | |
65 | // FIXME.. |
66 | static __inline void SekRunM68k(int cyc) |
67 | { |
68 | int cyc_do; |
69 | SekCycleAim+=cyc; |
70 | if ((cyc_do=SekCycleAim-SekCycleCnt) <= 0) return; |
71 | #if defined(EMU_CORE_DEBUG) |
72 | // this means we do run-compare |
73 | SekCycleCnt+=CM_compareRun(cyc_do, 0); |
74 | #elif defined(EMU_C68K) |
75 | PicoCpuCM68k.cycles=cyc_do; |
76 | CycloneRun(&PicoCpuCM68k); |
77 | SekCycleCnt+=cyc_do-PicoCpuCM68k.cycles; |
78 | #elif defined(EMU_M68K) |
79 | SekCycleCnt+=m68k_execute(cyc_do); |
80 | #elif defined(EMU_F68K) |
81 | SekCycleCnt+=fm68k_emulate(cyc_do+1, 0, 0); |
82 | #endif |
83 | } |
84 | |
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85 | // ~1463.8, but due to cache misses and slow mem |
86 | // it's much lower than that |
87 | #define SH2_LINE_CYCLES 700 |
88 | |
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89 | #define PICO_32X |
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90 | #define RUN_SH2S \ |
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91 | if (!(Pico32x.emu_flags & P32XF_MSH2POLL)) \ |
92 | sh2_execute(&msh2, SH2_LINE_CYCLES); |
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93 | |
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94 | #include "../pico_cmn.c" |
95 | |
96 | void PicoFrame32x(void) |
97 | { |
98 | if ((Pico32x.vdp_regs[0] & 3 ) != 0) // no forced blanking |
99 | Pico32x.vdp_regs[0x0a/2] &= ~(P32XV_VBLK|P32XV_PEN); // get out of vblank |
100 | |
101 | PicoFrameStart(); |
102 | PicoFrameHints(); |
103 | } |