ef399b9315
Converted the hack into another... hopefully better hack. Check for IW/EWRAM addr bit and handle accesses to EWRAM by correcting the base addr and the mirroring range. Assumes that iwram and ewram buffers are at a distance multiple of 64KB for speed (so that lw/sw offsets can be shared). This fixes a variety of games that should have been present in game_config.txt such as Ninja Cop, Star Wars JPB, Medal of Honor, Spongebob, etc. Some of them were just missing regional versions of the cart. It also fixes newer games and homebrew such as GoodBoy Galaxy.
412 lines
18 KiB
C
412 lines
18 KiB
C
/* gameplaySP
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*
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* Copyright (C) 2006 Exophase <exophase@gmail.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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typedef enum
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{
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mips_reg_zero,
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mips_reg_at,
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mips_reg_v0,
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mips_reg_v1,
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mips_reg_a0,
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mips_reg_a1,
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mips_reg_a2,
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mips_reg_a3,
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mips_reg_t0,
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mips_reg_t1,
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mips_reg_t2,
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mips_reg_t3,
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mips_reg_t4,
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mips_reg_t5,
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mips_reg_t6,
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mips_reg_t7,
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mips_reg_s0,
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mips_reg_s1,
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mips_reg_s2,
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mips_reg_s3,
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mips_reg_s4,
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mips_reg_s5,
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mips_reg_s6,
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mips_reg_s7,
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mips_reg_t8,
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mips_reg_t9,
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mips_reg_k0,
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mips_reg_k1,
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mips_reg_gp,
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mips_reg_sp,
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mips_reg_fp,
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mips_reg_ra
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} mips_reg_number;
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typedef enum
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{
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mips_special_sll = 0x00,
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mips_special_srl = 0x02,
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mips_special_sra = 0x03,
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mips_special_sllv = 0x04,
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mips_special_srlv = 0x06,
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mips_special_srav = 0x07,
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mips_special_jr = 0x08,
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mips_special_jalr = 0x09,
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mips_special_movz = 0x0A,
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mips_special_movn = 0x0B,
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mips_special_sync = 0x0F,
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mips_special_mfhi = 0x10,
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mips_special_mthi = 0x11,
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mips_special_mflo = 0x12,
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mips_special_mtlo = 0x13,
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mips_special_mult = 0x18,
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mips_special_multu = 0x19,
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mips_special_div = 0x1A,
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mips_special_divu = 0x1B,
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mips_special_madd = 0x1C,
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mips_special_maddu = 0x1D,
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mips_special_add = 0x20,
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mips_special_addu = 0x21,
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mips_special_sub = 0x22,
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mips_special_subu = 0x23,
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mips_special_and = 0x24,
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mips_special_or = 0x25,
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mips_special_xor = 0x26,
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mips_special_nor = 0x27,
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mips_special_slt = 0x2A,
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mips_special_sltu = 0x2B,
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mips_special_max = 0x2C,
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mips_special_min = 0x2D,
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} mips_function_special;
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typedef enum
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{
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mips_special2_madd = 0x00,
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mips_special2_maddu = 0x01,
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} mips_function_special2;
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typedef enum
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{
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mips_special3_ext = 0x00,
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mips_special3_ins = 0x04,
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mips_special3_bshfl = 0x20
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} mips_function_special3;
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typedef enum
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{
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mips_bshfl_seb = 0x10,
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mips_bshfl_seh = 0x18,
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mips_bshfl_wsbh = 0x02,
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} mips_function_bshfl;
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typedef enum
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{
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mips_regimm_bltz = 0x00,
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mips_regimm_bltzal = 0x10,
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mips_regimm_bgezal = 0x11,
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mips_regimm_synci = 0x1F
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} mips_function_regimm;
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typedef enum
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{
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mips_opcode_special = 0x00,
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mips_opcode_regimm = 0x01,
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mips_opcode_j = 0x02,
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mips_opcode_jal = 0x03,
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mips_opcode_beq = 0x04,
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mips_opcode_bne = 0x05,
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mips_opcode_blez = 0x06,
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mips_opcode_bgtz = 0x07,
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mips_opcode_addi = 0x08,
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mips_opcode_addiu = 0x09,
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mips_opcode_slti = 0x0A,
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mips_opcode_sltiu = 0x0B,
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mips_opcode_andi = 0x0C,
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mips_opcode_ori = 0x0D,
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mips_opcode_xori = 0x0E,
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mips_opcode_lui = 0x0F,
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mips_opcode_llo = 0x18,
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mips_opcode_lhi = 0x19,
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mips_opcode_trap = 0x1A,
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mips_opcode_special2 = 0x1C,
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mips_opcode_special3 = 0x1F,
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mips_opcode_lb = 0x20,
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mips_opcode_lh = 0x21,
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mips_opcode_lw = 0x23,
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mips_opcode_lbu = 0x24,
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mips_opcode_lhu = 0x25,
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mips_opcode_sb = 0x28,
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mips_opcode_sh = 0x29,
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mips_opcode_sw = 0x2B,
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mips_opcode_cache = 0x2F,
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} mips_opcode;
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#define mips_emit_cache(operation, rs, immediate) \
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*((u32 *)translation_ptr) = (mips_opcode_cache << 26) | \
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(rs << 21) | (operation << 16) | (immediate & 0xFFFF); \
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translation_ptr += 4 \
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#define mips_emit_reg(opcode, rs, rt, rd, shift, function) \
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*((u32 *)translation_ptr) = (mips_opcode_##opcode << 26) | \
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(rs << 21) | (rt << 16) | (rd << 11) | ((shift) << 6) | function; \
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translation_ptr += 4 \
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#define mips_emit_special(function, rs, rt, rd, shift) \
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*((u32 *)translation_ptr) = (mips_opcode_special << 26) | \
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(rs << 21) | (rt << 16) | (rd << 11) | ((shift) << 6) | \
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mips_special_##function; \
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translation_ptr += 4 \
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#define mips_emit_special2(function, rs, rt, rd, shift) \
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*((u32 *)translation_ptr) = (mips_opcode_special2 << 26) | \
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(rs << 21) | (rt << 16) | (rd << 11) | ((shift) << 6) | \
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mips_special2_##function; \
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translation_ptr += 4 \
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#define mips_emit_special3(function, rs, rt, imm_a, imm_b) \
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*((u32 *)translation_ptr) = (mips_opcode_special3 << 26) | \
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(rs << 21) | (rt << 16) | (imm_a << 11) | (imm_b << 6) | \
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mips_special3_##function; \
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translation_ptr += 4 \
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#define mips_emit_imm(opcode, rs, rt, immediate) \
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*((u32 *)translation_ptr) = (mips_opcode_##opcode << 26) | \
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(rs << 21) | (rt << 16) | ((immediate) & 0xFFFF); \
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translation_ptr += 4 \
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#define mips_emit_regimm(function, rs, immediate) \
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*((u32 *)translation_ptr) = (mips_opcode_regimm << 26) | \
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(rs << 21) | (mips_regimm_##function << 16) | ((immediate) & 0xFFFF); \
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translation_ptr += 4 \
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#define mips_emit_jump(opcode, offset) \
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*((u32 *)translation_ptr) = (mips_opcode_##opcode << 26) | \
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(offset & 0x3FFFFFF); \
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translation_ptr += 4 \
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#define mips_relative_offset(source, offset) \
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(((u32)offset - ((u32)source + 4)) / 4) \
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#define mips_absolute_offset(offset) \
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((u32)offset / 4) \
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#define mips_emit_max(rd, rs, rt) \
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mips_emit_special(max, rs, rt, rd, 0) \
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#define mips_emit_min(rd, rs, rt) \
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mips_emit_special(min, rs, rt, rd, 0) \
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#define mips_emit_addu(rd, rs, rt) \
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mips_emit_special(addu, rs, rt, rd, 0) \
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#define mips_emit_subu(rd, rs, rt) \
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mips_emit_special(subu, rs, rt, rd, 0) \
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#define mips_emit_xor(rd, rs, rt) \
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mips_emit_special(xor, rs, rt, rd, 0) \
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#define mips_emit_add(rd, rs, rt) \
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mips_emit_special(and, rs, rt, rd, 0) \
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#define mips_emit_sub(rd, rs, rt) \
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mips_emit_special(sub, rs, rt, rd, 0) \
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#define mips_emit_and(rd, rs, rt) \
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mips_emit_special(and, rs, rt, rd, 0) \
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#define mips_emit_or(rd, rs, rt) \
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mips_emit_special(or, rs, rt, rd, 0) \
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#define mips_emit_nor(rd, rs, rt) \
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mips_emit_special(nor, rs, rt, rd, 0) \
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#define mips_emit_slt(rd, rs, rt) \
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mips_emit_special(slt, rs, rt, rd, 0) \
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#define mips_emit_sltu(rd, rs, rt) \
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mips_emit_special(sltu, rs, rt, rd, 0) \
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#define mips_emit_sllv(rd, rt, rs) \
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mips_emit_special(sllv, rs, rt, rd, 0) \
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#define mips_emit_srlv(rd, rt, rs) \
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mips_emit_special(srlv, rs, rt, rd, 0) \
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#define mips_emit_srav(rd, rt, rs) \
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mips_emit_special(srav, rs, rt, rd, 0) \
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#define mips_emit_rotrv(rd, rt, rs) \
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mips_emit_special(srlv, rs, rt, rd, 1) \
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#define mips_emit_sll(rd, rt, shift) \
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mips_emit_special(sll, 0, rt, rd, shift) \
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#define mips_emit_srl(rd, rt, shift) \
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mips_emit_special(srl, 0, rt, rd, shift) \
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#define mips_emit_sra(rd, rt, shift) \
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mips_emit_special(sra, 0, rt, rd, shift) \
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#define mips_emit_rotr(rd, rt, shift) \
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mips_emit_special(srl, 1, rt, rd, shift) \
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#define mips_emit_mfhi(rd) \
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mips_emit_special(mfhi, 0, 0, rd, 0) \
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#define mips_emit_mflo(rd) \
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mips_emit_special(mflo, 0, 0, rd, 0) \
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#define mips_emit_mthi(rs) \
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mips_emit_special(mthi, rs, 0, 0, 0) \
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#define mips_emit_mtlo(rs) \
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mips_emit_special(mtlo, rs, 0, 0, 0) \
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#define mips_emit_mult(rs, rt) \
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mips_emit_special(mult, rs, rt, 0, 0) \
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#define mips_emit_multu(rs, rt) \
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mips_emit_special(multu, rs, rt, 0, 0) \
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#define mips_emit_div(rs, rt) \
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mips_emit_special(div, rs, rt, 0, 0) \
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#define mips_emit_divu(rs, rt) \
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mips_emit_special(divu, rs, rt, 0, 0) \
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#ifdef PSP
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#define mips_emit_madd(rs, rt) \
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mips_emit_special(madd, rs, rt, 0, 0) \
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#define mips_emit_maddu(rs, rt) \
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mips_emit_special(maddu, rs, rt, 0, 0)
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#else
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#define mips_emit_madd(rs, rt) \
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mips_emit_special2(madd, rs, rt, 0, 0) \
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#define mips_emit_maddu(rs, rt) \
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mips_emit_special2(maddu, rs, rt, 0, 0)
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#endif
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#define mips_emit_movn(rd, rs, rt) \
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mips_emit_special(movn, rs, rt, rd, 0) \
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#define mips_emit_movz(rd, rs, rt) \
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mips_emit_special(movz, rs, rt, rd, 0) \
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#define mips_emit_sync() \
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mips_emit_special(sync, 0, 0, 0, 0) \
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#define mips_emit_lb(rt, rs, offset) \
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mips_emit_imm(lb, rs, rt, offset) \
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#define mips_emit_lbu(rt, rs, offset) \
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mips_emit_imm(lbu, rs, rt, offset) \
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#define mips_emit_lh(rt, rs, offset) \
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mips_emit_imm(lh, rs, rt, offset) \
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#define mips_emit_lhu(rt, rs, offset) \
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mips_emit_imm(lhu, rs, rt, offset) \
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#define mips_emit_lw(rt, rs, offset) \
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mips_emit_imm(lw, rs, rt, offset) \
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#define mips_emit_sb(rt, rs, offset) \
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mips_emit_imm(sb, rs, rt, offset) \
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#define mips_emit_sh(rt, rs, offset) \
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mips_emit_imm(sh, rs, rt, offset) \
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#define mips_emit_sw(rt, rs, offset) \
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mips_emit_imm(sw, rs, rt, offset) \
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#define mips_emit_lui(rt, imm) \
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mips_emit_imm(lui, 0, rt, imm) \
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#define mips_emit_addiu(rt, rs, imm) \
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mips_emit_imm(addiu, rs, rt, imm) \
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#define mips_emit_xori(rt, rs, imm) \
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mips_emit_imm(xori, rs, rt, imm) \
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#define mips_emit_ori(rt, rs, imm) \
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mips_emit_imm(ori, rs, rt, imm) \
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#define mips_emit_andi(rt, rs, imm) \
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mips_emit_imm(andi, rs, rt, imm) \
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#define mips_emit_slti(rt, rs, imm) \
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mips_emit_imm(slti, rs, rt, imm) \
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#define mips_emit_sltiu(rt, rs, imm) \
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mips_emit_imm(sltiu, rs, rt, imm) \
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#define mips_emit_ext(rt, rs, pos, size) \
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mips_emit_special3(ext, rs, rt, (size - 1), pos) \
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#define mips_emit_ins(rt, rs, pos, size) \
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mips_emit_special3(ins, rs, rt, (pos + size - 1), pos) \
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#define mips_emit_seb(rt, rd) \
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mips_emit_special3(bshfl, 0, rt, rd, mips_bshfl_seb) \
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#define mips_emit_seh(rt, rd) \
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mips_emit_special3(bshfl, 0, rt, rd, mips_bshfl_seh) \
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// Breaks down if the backpatch offset is greater than 16bits, take care
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// when using (should be okay if limited to conditional instructions)
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#define mips_emit_b_filler(type, rs, rt, writeback_location) \
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(writeback_location) = translation_ptr; \
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mips_emit_imm(type, rs, rt, 0) \
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// The backpatch code for this has to be handled differently than the above
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#define mips_emit_j_filler(writeback_location) \
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(writeback_location) = translation_ptr; \
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mips_emit_jump(j, 0) \
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#define mips_emit_b(type, rs, rt, offset) \
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mips_emit_imm(type, rs, rt, offset) \
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#define mips_emit_j(offset) \
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mips_emit_jump(j, offset) \
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#define mips_emit_jal(offset) \
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mips_emit_jump(jal, offset) \
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#define mips_emit_jr(rs) \
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mips_emit_special(jr, rs, 0, 0, 0) \
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#define mips_emit_jalr(rs) \
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mips_emit_special(jalr, rs, 0, 31, 0) \
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#define mips_emit_synci(rs, offset) \
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mips_emit_regimm(synci, rs, offset) \
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#define mips_emit_bltzal(rs, offset) \
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mips_emit_regimm(bltzal, rs, offset) \
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#define mips_emit_bgezal(rs, offset) \
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mips_emit_regimm(bgezal, rs, offset) \
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#define mips_emit_bltz(rs, offset) \
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mips_emit_regimm(bltz, rs, offset) \
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#define mips_emit_nop() \
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mips_emit_sll(reg_zero, reg_zero, 0) \
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