Mercurial > repos > blastem
view jagcpu.h @ 1337:d092c15246a3
Initial stab at horizontal border when VDP test register layer selection is in effect for H40. Extended horizontal borders in Titancade scene and ninja escape scene mostly correct now
author | Michael Pavone <pavone@retrodev.com> |
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date | Sat, 29 Apr 2017 16:51:57 -0700 |
parents | c48d5191ddc9 |
children |
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#ifndef JAGCPU_H_ #define JAGCPU_H_ enum { JAG_ADD, JAG_ADDC, JAG_ADDQ, JAG_ADDQT, JAG_SUB, JAG_SUBC, JAG_SUBQ, JAG_SUBQT, JAG_NEG, JAG_AND, JAG_OR, JAG_XOR, JAG_NOT, JAG_BTST, JAG_BSET, JAG_BCLR, JAG_MULT, JAG_IMULT, JAG_IMULTN, JAG_RESMAC, JAG_IMACN, JAG_DIV, JAG_ABS, JAG_SH, JAG_SHLQ, JAG_SHRQ, JAG_SHA, JAG_SHARQ, JAG_ROR, JAG_RORQ, JAG_CMP, JAG_CMPQ, GPU_SAT8, DSP_SUBQMOD = GPU_SAT8, GPU_SAT16, DSP_SAT16S = GPU_SAT16, JAG_MOVE, JAG_MOVEQ, JAG_MOVETA, JAG_MOVEFA, JAG_MOVEI, JAG_LOADB, JAG_LOADW, JAG_LOAD, GPU_LOADP, DSP_SAT32S = GPU_LOADP, JAG_LOAD_R14_REL, JAG_LOAD_R15_REL, JAG_STOREB, JAG_STOREW, JAG_STORE, GPU_STOREP, DSP_MIRROR = GPU_STOREP, JAG_STORE_R14_REL, JAG_STORE_R15_REL, JAG_MOVE_PC, JAG_JUMP, JAG_JR, JAG_MMULT, JAG_MTOI, JAG_NORMI, JAG_NOP, JAG_LOAD_R14_INDEXED, JAG_LOAD_R15_INDEXED, JAG_STORE_R14_INDEXED, JAG_STORE_R15_INDEXED, GPU_SAT24, GPU_PACK, DSP_ADDQMOD = GPU_PACK, GPU_UNPACK //virtual opcode, UNPACK is PACK with a reg1 field set to 1 }; #define JAGCPU_NOREG -1 typedef struct { cpu_options gen; int8_t regs[32]; int8_t result; int8_t resultreg; int8_t bankptr; uint8_t is_gpu; } jag_cpu_options; typedef struct { uint32_t read_high; } jag_gpu; typedef struct { uint8_t mac_high; uint8_t modulo; } jag_dsp; typedef struct { uint32_t cycles; uint32_t regs[64]; uint32_t *main; uint32_t *alt; uint32_t pc; uint32_t result; uint32_t flags; uint32_t flags_pending; uint32_t remainder; union { jag_gpu gpu; jag_dsp dsp; }; int8_t writeback; int8_t resultreg; uint8_t is_gpu; } jag_cpu; uint16_t jag_opcode(uint16_t inst, uint8_t is_gpu); char * jag_cc(uint16_t inst); uint16_t jag_reg2(uint16_t inst); uint32_t jag_jr_dest(uint16_t inst, uint32_t address); int jag_cpu_disasm(uint16_t **stream, uint32_t address, char *dst, uint8_t is_gpu, uint8_t labels); #endif