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1 | #ifndef __SH2_H__\r |
2 | #define __SH2_H__\r |
3 | \r |
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4 | typedef struct\r |
5 | {\r |
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6 | unsigned int r[16]; // 00\r |
7 | unsigned int pc; // 40\r |
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8 | unsigned int ppc;\r |
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9 | unsigned int pr;\r |
10 | unsigned int sr;\r |
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11 | unsigned int gbr, vbr; // 50\r |
12 | unsigned int mach, macl; // 58\r |
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13 | \r |
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14 | // interpreter stuff\r |
15 | int icount; // 60 cycles left in current timeslice\r |
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16 | unsigned int ea;\r |
17 | unsigned int delay;\r |
18 | unsigned int test_irq;\r |
19 | \r |
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20 | // common\r |
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21 | const void *read8_map; // 70\r |
22 | const void *read16_map;\r |
23 | const void **write8_tab;\r |
24 | const void **write16_tab;\r |
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25 | \r |
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26 | // drc stuff\r |
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27 | //void **pc_hashtab; // 80\r |
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28 | \r |
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29 | int pending_level; // MAX(pending_irl, pending_int_irq)\r |
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30 | int pending_irl;\r |
31 | int pending_int_irq; // internal irq\r |
32 | int pending_int_vector;\r |
33 | void (*irq_callback)(int id, int level);\r |
34 | int is_slave;\r |
35 | \r |
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36 | unsigned int cycles_aim; // subtract sh2_icount to get global counter\r |
37 | unsigned int cycles_done;\r |
38 | } SH2;\r |
39 | \r |
40 | extern SH2 *sh2; // active sh2\r |
41 | \r |
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42 | int sh2_init(SH2 *sh2, int is_slave);\r |
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43 | void sh2_finish(SH2 *sh2);\r |
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44 | void sh2_reset(SH2 *sh2);\r |
45 | void sh2_irl_irq(SH2 *sh2, int level);\r |
46 | void sh2_internal_irq(SH2 *sh2, int level, int vector);\r |
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47 | void sh2_do_irq(SH2 *sh2, int level, int vector);\r |
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48 | \r |
49 | void sh2_execute(SH2 *sh2, int cycles);\r |
50 | \r |
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51 | // pico memhandlers\r |
52 | // XXX: move somewhere else\r |
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53 | #if !defined(REGPARM) && defined(__i386__) \r |
54 | #define REGPARM(x) __attribute__((regparm(x)))\r |
55 | #else\r |
56 | #define REGPARM(x)\r |
57 | #endif\r |
58 | \r |
59 | unsigned int REGPARM(2) p32x_sh2_read8(unsigned int a, SH2 *sh2);\r |
60 | unsigned int REGPARM(2) p32x_sh2_read16(unsigned int a, SH2 *sh2);\r |
61 | unsigned int REGPARM(2) p32x_sh2_read32(unsigned int a, SH2 *sh2);\r |
62 | void REGPARM(3) p32x_sh2_write8(unsigned int a, unsigned int d, SH2 *sh2);\r |
63 | void REGPARM(3) p32x_sh2_write16(unsigned int a, unsigned int d, SH2 *sh2);\r |
64 | void REGPARM(3) p32x_sh2_write32(unsigned int a, unsigned int d, SH2 *sh2);\r |
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65 | \r |
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66 | #endif /* __SH2_H__ */\r |