| 41397701 |
1 | #ifndef __SH2_H__\r |
| 2 | #define __SH2_H__\r |
| 3 | \r |
| 41397701 |
4 | typedef struct\r |
| 5 | {\r |
| 679af8a3 |
6 | unsigned int r[16]; // 00\r |
| 7 | unsigned int pc; // 40\r |
| 41397701 |
8 | unsigned int ppc;\r |
| 41397701 |
9 | unsigned int pr;\r |
| 10 | unsigned int sr;\r |
| 679af8a3 |
11 | unsigned int gbr, vbr; // 50\r |
| 12 | unsigned int mach, macl; // 58\r |
| 41397701 |
13 | \r |
| bcf65fd6 |
14 | // common\r |
| f0d7b1fa |
15 | const void *read8_map; // 60\r |
| f4bb5d6b |
16 | const void *read16_map;\r |
| 17 | const void **write8_tab;\r |
| 18 | const void **write16_tab;\r |
| bcf65fd6 |
19 | \r |
| 679af8a3 |
20 | // drc stuff\r |
| f0d7b1fa |
21 | int drc_tmp; // 70\r |
| 22 | \r |
| 23 | // interpreter stuff\r |
| 24 | int icount; // cycles left in current timeslice\r |
| 25 | unsigned int ea;\r |
| 26 | unsigned int delay;\r |
| 27 | unsigned int test_irq;\r |
| 679af8a3 |
28 | \r |
| 6add7875 |
29 | int pending_level; // MAX(pending_irl, pending_int_irq)\r |
| 41397701 |
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 |
| 41397701 |
36 | unsigned int cycles_aim; // subtract sh2_icount to get global counter\r |
| 37 | unsigned int cycles_done;\r |
| 38 | } SH2;\r |
| 39 | \r |
| f0d7b1fa |
40 | extern SH2 *sh2; // active sh2. XXX: consider removing\r |
| 41397701 |
41 | \r |
| 679af8a3 |
42 | int sh2_init(SH2 *sh2, int is_slave);\r |
| e898de13 |
43 | void sh2_finish(SH2 *sh2);\r |
| 41397701 |
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 |
| 6add7875 |
47 | void sh2_do_irq(SH2 *sh2, int level, int vector);\r |
| 41397701 |
48 | \r |
| 49 | void sh2_execute(SH2 *sh2, int cycles);\r |
| 50 | \r |
| bcf65fd6 |
51 | // pico memhandlers\r |
| 52 | // XXX: move somewhere else\r |
| 80599a42 |
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 |
| bcf65fd6 |
65 | \r |
| 41397701 |
66 | #endif /* __SH2_H__ */\r |
notaz.gp2x.de / picodrive.git / blame