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1 | #ifndef __REGUSE_H__ |
2 | #define __REGUSE_H__ | |
3 | ||
4 | #ifdef __cplusplus | |
5 | extern "C" { | |
6 | #endif | |
7 | ||
8 | // include basic types | |
9 | #include "../psxcommon.h" | |
10 | ||
11 | #define REGUSE_NONE 0x0000 | |
12 | #define REGUSE_UNKNOWN 0x0001 | |
13 | ||
14 | //sub functions | |
15 | #define REGUSE_SPECIAL 0x0002 | |
16 | #define REGUSE_REGIMM 0x0004 | |
17 | #define REGUSE_COP0 0x0006 | |
18 | #define REGUSE_COP2 0x0008 | |
19 | #define REGUSE_BASIC 0x000a | |
20 | #define REGUSE_SUBMASK 0x000e /* sub function mask */ | |
21 | ||
22 | #define REGUSE_ACC 0x0010 /* accumulator */ | |
23 | #define REGUSE_LOGIC 0x0020 /* logic operations */ | |
24 | #define REGUSE_MULT 0x0030 /* multiplier */ | |
25 | #define REGUSE_JUMP 0x0040 /* jump to dest */ | |
26 | #define REGUSE_JUMPR 0x0050 /* jump to reg */ | |
27 | #define REGUSE_BRANCH 0x0060 /* branch */ | |
28 | #define REGUSE_MEM_R 0x0070 /* read from memory */ | |
29 | #define REGUSE_MEM_W 0x0080 /* write to memory */ | |
30 | #define REGUSE_MEM 0x0090 /* read and write to memory */ | |
31 | #define REGUSE_SYS 0x00a0 /* syscall */ | |
32 | #define REGUSE_GTE 0x00b0 /* gte operation */ | |
33 | #define REGUSE_SUB 0x00f0 /* sub usage */ | |
34 | #define REGUSE_TYPEM 0x00f0 /* type mask */ | |
35 | ||
36 | ||
37 | #define REGUSE_RS_R 0x0100 | |
38 | #define REGUSE_RS_W 0x0200 | |
39 | #define REGUSE_RS (REGUSE_RS_R | REGUSE_RS_W) | |
40 | #define REGUSE_RT_R 0x0400 | |
41 | #define REGUSE_RT_W 0x0800 | |
42 | #define REGUSE_RT (REGUSE_RT_R | REGUSE_RT_W) | |
43 | #define REGUSE_RD_R 0x1000 | |
44 | #define REGUSE_RD_W 0x2000 | |
45 | #define REGUSE_RD (REGUSE_RD_R | REGUSE_RD_W) | |
46 | ||
47 | #define REGUSE_R31_W 0x4000 /* writes to link register (r31) */ | |
48 | #define REGUSE_PC 0x8000 /* reads pc */ | |
49 | ||
50 | #define REGUSE_LO_R 0x10000 | |
51 | #define REGUSE_LO_W 0x20000 | |
52 | #define REGUSE_LO (REGUSE_LO_R | REGUSE_LO_W) | |
53 | #define REGUSE_HI_R 0x40000 | |
54 | #define REGUSE_HI_W 0x80000 | |
55 | #define REGUSE_HI (REGUSE_HI_R | REGUSE_HI_W) | |
56 | ||
57 | #define REGUSE_COP0_RD_R 0x100000 | |
58 | #define REGUSE_COP0_RD_W 0x200000 | |
59 | #define REGUSE_COP0_RD (REGUSE_COP0_RD_R | REGUSE_COP0_RD_W) | |
60 | #define REGUSE_COP0_STATUS 0x400000 | |
61 | #define REGUSE_EXCEPTION 0x800000 | |
62 | ||
63 | #define REGUSE_COP2_RT_R 0x1000000 | |
64 | #define REGUSE_COP2_RT_W 0x2000000 | |
65 | #define REGUSE_COP2_RT (REGUSE_COP2_RT_R | REGUSE_COP2_RT_W) | |
66 | #define REGUSE_COP2_RD_R 0x4000000 | |
67 | #define REGUSE_COP2_RD_W 0x8000000 | |
68 | #define REGUSE_COP2_RD (REGUSE_COP2_RD_R | REGUSE_COP2_RD_W) | |
69 | ||
70 | ||
71 | // specific register use | |
72 | #define REGUSE_READ 1 | |
73 | #define REGUSE_WRITE 2 | |
74 | #define REGUSE_RW 3 | |
75 | ||
76 | int useOfPsxReg(u32 code, int use, int psxreg) __attribute__ ((__pure__));; | |
77 | int nextPsxRegUse(u32 pc, int psxreg) __attribute__ ((__pure__));; | |
78 | int isPsxRegUsed(u32 pc, int psxreg) __attribute__ ((__pure__));; | |
79 | ||
80 | #ifdef __cplusplus | |
81 | } | |
82 | #endif | |
83 | #endif |