/* gameplaySP * * Copyright (C) 2006 Exophase * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef X86_EMIT_H #define X86_EMIT_H u32 x86_update_gba(u32 pc); // Although these are defined as a function, don't call them as // such (jump to it instead) void x86_indirect_branch_arm(u32 address); void x86_indirect_branch_thumb(u32 address); void x86_indirect_branch_dual(u32 address); void function_cc execute_store_cpsr(u32 new_cpsr, u32 store_mask); typedef enum { x86_reg_number_eax, x86_reg_number_ecx, x86_reg_number_edx, x86_reg_number_ebx, x86_reg_number_esp, x86_reg_number_ebp, x86_reg_number_esi, x86_reg_number_edi } x86_reg_number; #define x86_emit_byte(value) \ *translation_ptr = value; \ translation_ptr++ \ #define x86_emit_dword(value) \ *((u32 *)translation_ptr) = value; \ translation_ptr += 4 \ typedef enum { x86_mod_mem = 0, x86_mod_mem_disp8 = 1, x86_mod_mem_disp32 = 2, x86_mod_reg = 3 } x86_mod; #define x86_emit_mod_rm(mod, rm, spare) \ x86_emit_byte((mod << 6) | (spare << 3) | rm) \ #define x86_emit_sib(scale, ridx, rbase) \ x86_emit_byte(((scale) << 6) | ((ridx) << 3) | (rbase)) \ #define x86_emit_mem_op(dest, base, offset) \ if(offset == 0) \ { \ x86_emit_mod_rm(x86_mod_mem, base, dest); \ } \ else if(((s32)offset < 127) && ((s32)offset > -128)) \ { \ x86_emit_mod_rm(x86_mod_mem_disp8, base, dest); \ x86_emit_byte((s8)offset); \ } \ else \ { \ x86_emit_mod_rm(x86_mod_mem_disp32, base, dest); \ x86_emit_dword(offset); \ } \ #define x86_emit_mem_sib_op(dest, base, ridx, scale, offset) \ if(offset == 0) \ { \ x86_emit_mod_rm(x86_mod_mem, 0x4, dest); \ x86_emit_sib(scale, ridx, base); \ } \ else if(((s32)offset < 127) && ((s32)offset > -128)) \ { \ x86_emit_mod_rm(x86_mod_mem_disp8, 0x4, dest); \ x86_emit_sib(scale, ridx, base); \ x86_emit_byte((s8)offset); \ } \ else \ { \ x86_emit_mod_rm(x86_mod_mem_disp32, 0x4, dest); \ x86_emit_sib(scale, ridx, base); \ x86_emit_dword(offset); \ } \ #define x86_emit_reg_op(dest, source) \ x86_emit_mod_rm(x86_mod_reg, source, dest) \ typedef enum { x86_opcode_mov_rm_reg = 0x89, x86_opcode_mov_reg_rm = 0x8B, x86_opcode_mov_reg_imm = 0xB8, x86_opcode_mov_rm_imm = 0x00C7, x86_opcode_ror_reg_imm = 0x01C1, x86_opcode_shl_reg_imm = 0x04C1, x86_opcode_shr_reg_imm = 0x05C1, x86_opcode_sar_reg_imm = 0x07C1, x86_opcode_ror_reg_rm = 0x01D3, x86_opcode_rcr_reg_rm = 0x03D3, x86_opcode_shl_reg_rm = 0x04D3, x86_opcode_shr_reg_rm = 0x05D3, x86_opcode_sar_reg_rm = 0x07D3, x86_opcode_rcr_reg1 = 0x03D1, x86_opcode_call_offset = 0xE8, x86_opcode_ret = 0xC3, x86_opcode_test_rm_imm = 0x00F7, x86_opcode_test_reg_rm = 0x85, x86_opcode_not_rm = 0x02F7, x86_opcode_mul_eax_rm = 0x04F7, x86_opcode_imul_eax_rm = 0x05F7, x86_opcode_idiv_eax_rm = 0x07F7, x86_opcode_add_rm_imm = 0x0081, x86_opcode_and_rm_imm = 0x0481, x86_opcode_sub_rm_imm = 0x0581, x86_opcode_xor_rm_imm = 0x0681, x86_opcode_add_reg_rm = 0x03, x86_opcode_adc_reg_rm = 0x13, x86_opcode_and_reg_rm = 0x23, x86_opcode_or_reg_rm = 0x0B, x86_opcode_sub_reg_rm = 0x2B, x86_opcode_sbb_reg_rm = 0x1B, x86_opcode_xor_reg_rm = 0x33, x86_opcode_cmp_reg_rm = 0x39, x86_opcode_cmp_rm_imm = 0x0781, x86_opcode_lea_reg_rm = 0x8D, x86_opcode_j = 0x80, x86_opcode_cdq = 0x99, x86_opcode_jmp = 0xE9, x86_opcode_jmp_reg = 0x04FF, x86_opcode_ext = 0x0F } x86_opcodes; typedef enum { x86_opcode_seto = 0x90, x86_opcode_setc = 0x92, x86_opcode_setnc = 0x93, x86_opcode_setz = 0x94, x86_opcode_setnz = 0x95, x86_opcode_sets = 0x98, x86_opcode_setns = 0x99, } x86_ext_opcodes; typedef enum { x86_condition_code_o = 0x00, x86_condition_code_no = 0x01, x86_condition_code_c = 0x02, x86_condition_code_nc = 0x03, x86_condition_code_z = 0x04, x86_condition_code_nz = 0x05, x86_condition_code_na = 0x06, x86_condition_code_a = 0x07, x86_condition_code_s = 0x08, x86_condition_code_ns = 0x09, x86_condition_code_p = 0x0A, x86_condition_code_np = 0x0B, x86_condition_code_l = 0x0C, x86_condition_code_nl = 0x0D, x86_condition_code_ng = 0x0E, x86_condition_code_g = 0x0F } x86_condition_codes; #define x86_relative_offset(source, offset, next) \ ((u32)offset - ((u32)source + next)) \ #define x86_unequal_operands(op_a, op_b) \ (x86_reg_number_##op_a != x86_reg_number_##op_b) \ #define x86_emit_opcode_1b_reg(opcode, dest, source) \ { \ x86_emit_byte(x86_opcode_##opcode); \ x86_emit_reg_op(x86_reg_number_##dest, x86_reg_number_##source); \ } \ #define x86_emit_opcode_1b_mem(opcode, dest, base, offset) \ { \ x86_emit_byte(x86_opcode_##opcode); \ x86_emit_mem_op(x86_reg_number_##dest, x86_reg_number_##base, offset); \ } \ #define x86_emit_opcode_1b_mem_sib(opcode, dest, base, ridx, scale, offset) \ { \ x86_emit_byte(x86_opcode_##opcode); \ x86_emit_mem_sib_op(x86_reg_number_##dest, x86_reg_number_##base, \ x86_reg_number_##ridx, scale, offset); \ } \ #define x86_emit_opcode_1b(opcode, reg) \ x86_emit_byte(x86_opcode_##opcode | x86_reg_number_##reg) \ #define x86_emit_opcode_1b_ext_reg(opcode, dest) \ x86_emit_byte(x86_opcode_##opcode & 0xFF); \ x86_emit_reg_op(x86_opcode_##opcode >> 8, x86_reg_number_##dest) \ #define x86_emit_opcode_1b_ext_mem(opcode, base, offset) \ x86_emit_byte(x86_opcode_##opcode & 0xFF); \ x86_emit_mem_op(x86_opcode_##opcode >> 8, x86_reg_number_##base, offset) \ #define x86_emit_mov_reg_mem(dest, base, offset) \ x86_emit_opcode_1b_mem(mov_reg_rm, dest, base, offset) \ #define x86_emit_mov_reg_mem_idx(dest, base, scale, index, offset) \ x86_emit_opcode_1b_mem_sib(mov_reg_rm, dest, base, index, scale, offset) \ #define x86_emit_mov_mem_reg(source, base, offset) \ x86_emit_opcode_1b_mem(mov_rm_reg, source, base, offset) \ #define x86_emit_setcc_mem(ccode, base, offset) \ x86_emit_byte(x86_opcode_ext); \ x86_emit_opcode_1b_mem(set##ccode, eax, base, offset); \ #define x86_emit_add_reg_mem(dst, base, offset) \ x86_emit_opcode_1b_mem(add_reg_rm, dst, base, offset); \ #define x86_emit_or_reg_mem(dst, base, offset) \ x86_emit_opcode_1b_mem(or_reg_rm, dst, base, offset); \ #define x86_emit_xor_reg_mem(dst, base, offset) \ x86_emit_opcode_1b_mem(xor_reg_rm, dst, base, offset); \ #define x86_emit_cmp_reg_mem(rega, base, offset) \ x86_emit_opcode_1b_mem(cmp_reg_rm, rega, base, offset); \ #define x86_emit_test_reg_mem(rega, base, offset) \ x86_emit_opcode_1b_mem(test_reg_rm, rega, base, offset); \ #define x86_emit_mov_reg_reg(dest, source) \ if(x86_unequal_operands(dest, source)) \ { \ x86_emit_opcode_1b_reg(mov_reg_rm, dest, source) \ } \ #define x86_emit_mov_reg_imm(dest, imm) \ x86_emit_opcode_1b(mov_reg_imm, dest); \ x86_emit_dword(imm) \ #define x86_emit_mov_mem_imm(imm, base, offset) \ x86_emit_opcode_1b_ext_mem(mov_rm_imm, base, offset); \ x86_emit_dword(imm) \ #define x86_emit_shl_reg_imm(dest, imm) \ x86_emit_opcode_1b_ext_reg(shl_reg_imm, dest); \ x86_emit_byte(imm) \ #define x86_emit_shr_reg_imm(dest, imm) \ x86_emit_opcode_1b_ext_reg(shr_reg_imm, dest); \ x86_emit_byte(imm) \ #define x86_emit_sar_reg_imm(dest, imm) \ x86_emit_opcode_1b_ext_reg(sar_reg_imm, dest); \ x86_emit_byte(imm) \ #define x86_emit_ror_reg_imm(dest, imm) \ x86_emit_opcode_1b_ext_reg(ror_reg_imm, dest); \ x86_emit_byte(imm) \ #define x86_emit_add_reg_reg(dest, source) \ x86_emit_opcode_1b_reg(add_reg_rm, dest, source) \ #define x86_emit_adc_reg_reg(dest, source) \ x86_emit_opcode_1b_reg(adc_reg_rm, dest, source) \ #define x86_emit_sub_reg_reg(dest, source) \ x86_emit_opcode_1b_reg(sub_reg_rm, dest, source) \ #define x86_emit_sbb_reg_reg(dest, source) \ x86_emit_opcode_1b_reg(sbb_reg_rm, dest, source) \ #define x86_emit_and_reg_reg(dest, source) \ x86_emit_opcode_1b_reg(and_reg_rm, dest, source) \ #define x86_emit_or_reg_reg(dest, source) \ x86_emit_opcode_1b_reg(or_reg_rm, dest, source) \ #define x86_emit_xor_reg_reg(dest, source) \ x86_emit_opcode_1b_reg(xor_reg_rm, dest, source) \ #define x86_emit_add_reg_imm(dest, imm) \ if(imm != 0) \ { \ x86_emit_opcode_1b_ext_reg(add_rm_imm, dest); \ x86_emit_dword(imm); \ } \ #define x86_emit_sub_reg_imm(dest, imm) \ if(imm != 0) \ { \ x86_emit_opcode_1b_ext_reg(sub_rm_imm, dest); \ x86_emit_dword(imm); \ } \ #define x86_emit_and_reg_imm(dest, imm) \ x86_emit_opcode_1b_ext_reg(and_rm_imm, dest); \ x86_emit_dword(imm) \ #define x86_emit_xor_reg_imm(dest, imm) \ x86_emit_opcode_1b_ext_reg(xor_rm_imm, dest); \ x86_emit_dword(imm) \ #define x86_emit_test_reg_imm(dest, imm) \ x86_emit_opcode_1b_ext_reg(test_rm_imm, dest); \ x86_emit_dword(imm) \ #define x86_emit_cmp_reg_reg(dest, source) \ x86_emit_opcode_1b_reg(cmp_reg_rm, dest, source) \ #define x86_emit_test_reg_reg(dest, source) \ x86_emit_opcode_1b_reg(test_reg_rm, dest, source) \ #define x86_emit_cmp_reg_imm(dest, imm) \ x86_emit_opcode_1b_ext_reg(cmp_rm_imm, dest); \ x86_emit_dword(imm) \ #define x86_emit_rot_reg_reg(type, dest) \ x86_emit_opcode_1b_ext_reg(type##_reg_rm, dest) \ #define x86_emit_rot_reg1(type, dest) \ x86_emit_opcode_1b_ext_reg(type##_reg1, dest) \ #define x86_emit_shr_reg_reg(dest) \ x86_emit_opcode_1b_ext_reg(shr_reg_rm, dest) \ #define x86_emit_sar_reg_reg(dest) \ x86_emit_opcode_1b_ext_reg(sar_reg_rm, dest) \ #define x86_emit_shl_reg_reg(dest) \ x86_emit_opcode_1b_ext_reg(shl_reg_rm, dest) \ #define x86_emit_mul_eax_reg(source) \ x86_emit_opcode_1b_ext_reg(mul_eax_rm, source) \ #define x86_emit_imul_eax_reg(source) \ x86_emit_opcode_1b_ext_reg(imul_eax_rm, source) \ #define x86_emit_idiv_eax_reg(source) \ x86_emit_opcode_1b_ext_reg(idiv_eax_rm, source) \ #define x86_emit_not_reg(srcdst) \ x86_emit_opcode_1b_ext_reg(not_rm, srcdst) \ #define x86_emit_cdq() \ x86_emit_byte(x86_opcode_cdq) \ #define x86_emit_call_offset(relative_offset) \ x86_emit_byte(x86_opcode_call_offset); \ x86_emit_dword(relative_offset) \ #define x86_emit_ret() \ x86_emit_byte(x86_opcode_ret) \ #define x86_emit_lea_reg_mem(dest, base, offset) \ x86_emit_opcode_1b_mem(lea_reg_rm, dest, base, offset) \ #define x86_emit_j_filler(condition_code, writeback_location) \ x86_emit_byte(x86_opcode_ext); \ x86_emit_byte(x86_opcode_j | condition_code); \ (writeback_location) = translation_ptr; \ translation_ptr += 4 \ #define x86_emit_j_offset(condition_code, offset) \ x86_emit_byte(x86_opcode_ext); \ x86_emit_byte(x86_opcode_j | condition_code); \ x86_emit_dword(offset) \ #define x86_emit_jmp_filler(writeback_location) \ x86_emit_byte(x86_opcode_jmp); \ (writeback_location) = translation_ptr; \ translation_ptr += 4 \ #define x86_emit_jmp_offset(offset) \ x86_emit_byte(x86_opcode_jmp); \ x86_emit_dword(offset) \ #define x86_emit_jmp_reg(source) \ x86_emit_opcode_1b_ext_reg(jmp_reg, source) \ #define reg_base ebx #define reg_cycles edi #define reg_a0 eax #define reg_a1 edx #define reg_a2 ecx #define reg_rv eax #define reg_s0 esi /* Offsets from reg_base, see stub.S */ #define SPSR_BASE_OFF 0xA9100 #define generate_test_imm(ireg, imm) \ x86_emit_test_reg_imm(reg_##ireg, imm); \ #define generate_test_memreg(ireg_ref, arm_reg_src) \ x86_emit_test_reg_mem(reg_##ireg_ref, reg_base, arm_reg_src * 4) \ #define generate_cmp_memreg(ireg_ref, arm_reg_src) \ x86_emit_cmp_reg_mem(reg_##ireg_ref, reg_base, arm_reg_src * 4) \ #define generate_cmp_imm(ireg, imm) \ x86_emit_cmp_reg_imm(reg_##ireg, imm) \ #define generate_cmp_reg(ireg, ireg2) \ x86_emit_cmp_reg_reg(reg_##ireg, reg_##ireg2) \ #define generate_update_flag(condcode, regnum) \ x86_emit_setcc_mem(condcode, reg_base, regnum * 4) \ #define generate_load_spsr(ireg, idxr) \ x86_emit_mov_reg_mem_idx(reg_##ireg, reg_base, 2, reg_##idxr, SPSR_BASE_OFF); #define generate_load_reg(ireg, reg_index) \ x86_emit_mov_reg_mem(reg_##ireg, reg_base, reg_index * 4); \ #define generate_load_pc(ireg, new_pc) \ x86_emit_mov_reg_imm(reg_##ireg, (new_pc)) \ #define generate_load_imm(ireg, imm) \ x86_emit_mov_reg_imm(reg_##ireg, imm) \ #define generate_store_reg(ireg, reg_index) \ x86_emit_mov_mem_reg(reg_##ireg, reg_base, reg_index * 4) \ #define generate_shift_left(ireg, imm) \ x86_emit_shl_reg_imm(reg_##ireg, imm) \ #define generate_shift_left_var(ireg) \ x86_emit_shl_reg_reg(reg_##ireg) \ #define generate_shift_right(ireg, imm) \ x86_emit_shr_reg_imm(reg_##ireg, imm) \ #define generate_shift_right_var(ireg) \ x86_emit_shr_reg_reg(reg_##ireg) \ #define generate_shift_right_arithmetic(ireg, imm) \ x86_emit_sar_reg_imm(reg_##ireg, imm) \ #define generate_shift_right_arithmetic_var(ireg) \ x86_emit_sar_reg_reg(reg_##ireg) \ #define generate_rotate_right(ireg, imm) \ x86_emit_ror_reg_imm(reg_##ireg, imm) \ #define generate_rotate_right_var(ireg) \ x86_emit_rot_reg_reg(ror, reg_##ireg) \ #define generate_rcr(ireg) \ x86_emit_rot_reg_reg(rcr, reg_##ireg) \ #define generate_rcr1(ireg) \ x86_emit_rot_reg1(rcr, reg_##ireg) \ #define generate_and(ireg_dest, ireg_src) \ x86_emit_and_reg_reg(reg_##ireg_dest, reg_##ireg_src) \ #define generate_add(ireg_dest, ireg_src) \ x86_emit_add_reg_reg(reg_##ireg_dest, reg_##ireg_src) \ #define generate_adc(ireg_dest, ireg_src) \ x86_emit_adc_reg_reg(reg_##ireg_dest, reg_##ireg_src) \ #define generate_add_memreg(ireg_dest, arm_reg_src) \ x86_emit_add_reg_mem(reg_##ireg_dest, reg_base, arm_reg_src * 4) \ #define generate_sub(ireg_dest, ireg_src) \ x86_emit_sub_reg_reg(reg_##ireg_dest, reg_##ireg_src) \ #define generate_sbb(ireg_dest, ireg_src) \ x86_emit_sbb_reg_reg(reg_##ireg_dest, reg_##ireg_src) \ #define generate_or(ireg_dest, ireg_src) \ x86_emit_or_reg_reg(reg_##ireg_dest, reg_##ireg_src) \ #define generate_or_mem(ireg_dest, arm_reg_src) \ x86_emit_or_reg_mem(reg_##ireg_dest, reg_base, arm_reg_src * 4) \ #define generate_xor(ireg_dest, ireg_src) \ x86_emit_xor_reg_reg(reg_##ireg_dest, reg_##ireg_src) \ #define generate_xor_mem(ireg_dest, arm_reg_src) \ x86_emit_xor_reg_mem(reg_##ireg_dest, reg_base, arm_reg_src * 4) \ #define generate_add_imm(ireg, imm) \ x86_emit_add_reg_imm(reg_##ireg, imm) \ #define generate_sub_imm(ireg, imm) \ x86_emit_sub_reg_imm(reg_##ireg, imm) \ #define generate_xor_imm(ireg, imm) \ x86_emit_xor_reg_imm(reg_##ireg, imm) \ #define generate_add_reg_reg_imm(ireg_dest, ireg_src, imm) \ x86_emit_lea_reg_mem(reg_##ireg_dest, reg_##ireg_src, imm) \ #define generate_and_imm(ireg, imm) \ x86_emit_and_reg_imm(reg_##ireg, imm) \ #define generate_mov(ireg_dest, ireg_src) \ x86_emit_mov_reg_reg(reg_##ireg_dest, reg_##ireg_src) \ #define generate_not(ireg) \ x86_emit_not_reg(reg_##ireg) \ #define generate_multiply(ireg) \ x86_emit_imul_eax_reg(reg_##ireg) \ #define generate_multiply_s64(ireg) \ x86_emit_imul_eax_reg(reg_##ireg) \ #define generate_multiply_u64(ireg) \ x86_emit_mul_eax_reg(reg_##ireg) \ #define generate_multiply_s64_add(ireg_src, ireg_lo, ireg_hi) \ x86_emit_imul_eax_reg(reg_##ireg_src); \ x86_emit_add_reg_reg(reg_a0, reg_##ireg_lo); \ x86_emit_adc_reg_reg(reg_a1, reg_##ireg_hi) \ #define generate_multiply_u64_add(ireg_src, ireg_lo, ireg_hi) \ x86_emit_mul_eax_reg(reg_##ireg_src); \ x86_emit_add_reg_reg(reg_a0, reg_##ireg_lo); \ x86_emit_adc_reg_reg(reg_a1, reg_##ireg_hi) \ #define generate_function_call(function_location) \ x86_emit_call_offset(x86_relative_offset(translation_ptr, \ function_location, 4)); \ #define generate_exit_block() \ x86_emit_ret(); \ #define generate_update_pc(new_pc) \ x86_emit_mov_reg_imm(eax, new_pc) \ #define generate_update_pc_reg() \ generate_update_pc(pc); \ generate_store_reg(a0, REG_PC) \ #define generate_cycle_update() \ x86_emit_sub_reg_imm(reg_cycles, cycle_count); \ cycle_count = 0 \ #define generate_branch_patch_conditional(dest, offset) \ *((u32 *)(dest)) = x86_relative_offset(dest, offset, 4) \ #define generate_branch_patch_unconditional(dest, offset) \ *((u32 *)(dest)) = x86_relative_offset(dest, offset, 4) \ #define generate_branch_no_cycle_update(writeback_location, new_pc) \ if(pc == idle_loop_target_pc) \ { \ x86_emit_mov_reg_imm(eax, new_pc); \ generate_function_call(x86_update_gba); \ x86_emit_jmp_filler(writeback_location); \ } \ else \ { \ x86_emit_test_reg_reg(reg_cycles, reg_cycles); \ x86_emit_j_offset(x86_condition_code_ns, 10); \ x86_emit_mov_reg_imm(eax, new_pc); \ generate_function_call(x86_update_gba); \ x86_emit_jmp_filler(writeback_location); \ } \ #define generate_branch_cycle_update(writeback_location, new_pc) \ generate_cycle_update(); \ generate_branch_no_cycle_update(writeback_location, new_pc) \ // a0 holds the destination #define generate_indirect_branch_cycle_update(type) \ generate_cycle_update(); \ x86_emit_jmp_offset(x86_relative_offset(translation_ptr, \ x86_indirect_branch_##type, 4)) \ #define generate_indirect_branch_no_cycle_update(type) \ x86_emit_jmp_offset(x86_relative_offset(translation_ptr, \ x86_indirect_branch_##type, 4)) \ #define block_prologue_size 0 #define generate_block_prologue() #define generate_block_extra_vars_arm() #define generate_block_extra_vars_thumb() #define generate_indirect_branch_arm() \ { \ if(condition == 0x0E) \ { \ generate_indirect_branch_cycle_update(arm); \ } \ else \ { \ generate_indirect_branch_no_cycle_update(arm); \ } \ } \ #define generate_indirect_branch_dual() \ { \ if(condition == 0x0E) \ { \ generate_indirect_branch_cycle_update(dual); \ } \ else \ { \ generate_indirect_branch_no_cycle_update(dual); \ } \ } \ #define calculate_z_flag(dest) \ reg[REG_Z_FLAG] = (dest == 0) \ #define calculate_n_flag(dest) \ reg[REG_N_FLAG] = ((signed)dest < 0) \ #define calculate_c_flag_sub(dest, src_a, src_b) \ reg[REG_C_FLAG] = ((unsigned)src_b <= (unsigned)src_a) \ #define calculate_v_flag_sub(dest, src_a, src_b) \ reg[REG_V_FLAG] = ((signed)src_b > (signed)src_a) != ((signed)dest < 0) \ #define calculate_c_flag_add(dest, src_a, src_b) \ reg[REG_C_FLAG] = ((unsigned)dest < (unsigned)src_a) \ #define calculate_v_flag_add(dest, src_a, src_b) \ reg[REG_V_FLAG] = ((signed)dest < (signed)src_a) != ((signed)src_b < 0) \ #define get_shift_imm() \ u32 shift = (opcode >> 7) & 0x1F \ #define generate_shift_reg(ireg, name, flags_op) \ generate_load_reg_pc(ireg, rm, 12); \ generate_load_reg(a1, ((opcode >> 8) & 0x0F)); \ generate_and_imm(a1, 0xFF); \ generate_##name##_##flags_op##_reg(ireg); \ #ifdef TRACE_INSTRUCTIONS void function_cc trace_instruction(u32 pc, u32 mode) { if (mode) printf("Executed arm %x\n", pc); else printf("Executed thumb %x\n", pc); } #define emit_trace_instruction(pc, mode) \ x86_emit_mov_reg_imm(reg_a0, pc); \ x86_emit_mov_reg_imm(reg_a1, mode); \ generate_function_call(trace_instruction); #define emit_trace_arm_instruction(pc) \ emit_trace_instruction(pc, 1) #define emit_trace_thumb_instruction(pc) \ emit_trace_instruction(pc, 0) #else #define emit_trace_thumb_instruction(pc) #define emit_trace_arm_instruction(pc) #endif #define generate_asr_no_flags_reg(ireg) \ { \ u8 *jmpinst; \ generate_mov(a2, a1); \ generate_shift_right_arithmetic_var(a0); \ generate_cmp_imm(a2, 32); \ x86_emit_j_filler(x86_condition_code_l, jmpinst); \ generate_shift_right_arithmetic(a0, 31); \ generate_branch_patch_conditional(jmpinst, translation_ptr); \ generate_mov(ireg, a0); \ } #define generate_asr_flags_reg(ireg) \ { \ u8 *jmpinst1, *jmpinst2; \ generate_mov(a2, a1); \ generate_or(a2, a2); \ x86_emit_j_filler(x86_condition_code_z, jmpinst1); \ generate_shift_right_arithmetic_var(a0); \ generate_update_flag(c, REG_C_FLAG) \ generate_cmp_imm(a2, 32); \ x86_emit_j_filler(x86_condition_code_l, jmpinst2); \ generate_shift_right_arithmetic(a0, 16); \ generate_shift_right_arithmetic(a0, 16); \ generate_update_flag(c, REG_C_FLAG) \ generate_branch_patch_conditional(jmpinst1, translation_ptr); \ generate_branch_patch_conditional(jmpinst2, translation_ptr); \ generate_mov(ireg, a0); \ } #define generate_lsl_no_flags_reg(ireg) \ { \ u8 *jmpinst; \ generate_mov(a2, a1); \ generate_shift_left_var(a0); \ generate_cmp_imm(a2, 32); \ x86_emit_j_filler(x86_condition_code_l, jmpinst); \ generate_load_imm(a0, 0); \ generate_branch_patch_conditional(jmpinst, translation_ptr); \ generate_mov(ireg, a0); \ } #define generate_lsl_flags_reg(ireg) \ { \ u8 *jmpinst1, *jmpinst2; \ generate_mov(a2, a1); \ generate_or(a2, a2); \ x86_emit_j_filler(x86_condition_code_z, jmpinst1); \ generate_sub_imm(a2, 1); \ generate_shift_left_var(a0); \ generate_or(a0, a0); \ generate_update_flag(s, REG_C_FLAG) \ generate_shift_left(a0, 1); \ generate_cmp_imm(a2, 32); \ x86_emit_j_filler(x86_condition_code_l, jmpinst2); \ generate_load_imm(a0, 0); \ generate_store_reg(a0, REG_C_FLAG) \ generate_branch_patch_conditional(jmpinst1, translation_ptr); \ generate_branch_patch_conditional(jmpinst2, translation_ptr); \ generate_mov(ireg, a0); \ } #define generate_lsr_no_flags_reg(ireg) \ { \ u8 *jmpinst; \ generate_mov(a2, a1); \ generate_shift_right_var(a0); \ generate_cmp_imm(a2, 32); \ x86_emit_j_filler(x86_condition_code_l, jmpinst); \ generate_xor(a0, a0); \ generate_branch_patch_conditional(jmpinst, translation_ptr); \ generate_mov(ireg, a0); \ } #define generate_lsr_flags_reg(ireg) \ { \ u8 *jmpinst1, *jmpinst2; \ generate_mov(a2, a1); \ generate_or(a2, a2); \ x86_emit_j_filler(x86_condition_code_z, jmpinst1); \ generate_sub_imm(a2, 1); \ generate_shift_right_var(a0); \ generate_test_imm(a0, 1); \ generate_update_flag(nz, REG_C_FLAG) \ generate_shift_right(a0, 1); \ generate_cmp_imm(a2, 32); \ x86_emit_j_filler(x86_condition_code_l, jmpinst2); \ generate_xor(a0, a0); \ generate_store_reg(a0, REG_C_FLAG) \ generate_branch_patch_conditional(jmpinst1, translation_ptr); \ generate_branch_patch_conditional(jmpinst2, translation_ptr); \ generate_mov(ireg, a0); \ } #define generate_ror_no_flags_reg(ireg) \ generate_mov(a2, a1); \ generate_rotate_right_var(a0); \ generate_mov(ireg, a0); #define generate_ror_flags_reg(ireg) \ { \ u8 *jmpinst; \ generate_mov(a2, a1); \ generate_or(a2, a2); \ x86_emit_j_filler(x86_condition_code_z, jmpinst); \ generate_sub_imm(a2, 1); \ generate_rotate_right_var(a0); \ generate_test_imm(a0, 1); \ generate_update_flag(nz, REG_C_FLAG) \ generate_rotate_right(a0, 1); \ generate_branch_patch_conditional(jmpinst, translation_ptr); \ generate_mov(ireg, a0); \ } // Shift right sets the CF of the shifted-out bit, use it with setc #define generate_rrx_flags(ireg) \ generate_load_imm(a2, 0xffffffff); \ generate_add_memreg(a2, REG_C_FLAG); \ generate_rcr1(a0); \ generate_update_flag(c, REG_C_FLAG) \ generate_mov(ireg, a0); #define generate_rrx(ireg) \ generate_load_reg(a2, REG_C_FLAG); \ generate_shift_right(ireg, 1); \ generate_shift_left(a2, 31); \ generate_or(ireg, a2); \ #define generate_shift_imm_lsl_no_flags(ireg) \ generate_load_reg_pc(ireg, rm, 8); \ if(shift != 0) \ { \ generate_shift_left(ireg, shift); \ } \ #define generate_shift_imm_lsr_no_flags(ireg) \ if(shift != 0) \ { \ generate_load_reg_pc(ireg, rm, 8); \ generate_shift_right(ireg, shift); \ } \ else \ { \ generate_load_imm(ireg, 0); \ } \ #define generate_shift_imm_asr_no_flags(ireg) \ generate_load_reg_pc(ireg, rm, 8); \ if(shift != 0) \ { \ generate_shift_right_arithmetic(ireg, shift); \ } \ else \ { \ generate_shift_right_arithmetic(ireg, 31); \ } \ #define generate_shift_imm_ror_no_flags(ireg) \ if(shift != 0) \ { \ generate_load_reg_pc(ireg, rm, 8); \ generate_rotate_right(ireg, shift); \ } \ else \ { \ generate_load_reg_pc(ireg, rm, 8); \ generate_rrx(ireg); \ } \ #define generate_shift_imm_lsl_flags(ireg) \ generate_load_reg_pc(ireg, rm, 8); \ if(shift != 0) \ { \ generate_shift_left(ireg, shift); \ generate_update_flag(c, REG_C_FLAG); \ } \ #define generate_shift_imm_lsr_flags(ireg) \ generate_load_reg_pc(ireg, rm, 8); \ if(shift != 0) \ { \ generate_shift_right(ireg, shift); \ generate_update_flag(c, REG_C_FLAG); \ } \ else \ { \ generate_shift_right(ireg, 31); \ generate_store_reg(ireg, REG_C_FLAG); \ generate_load_imm(ireg, 0); \ } \ #define generate_shift_imm_asr_flags(ireg) \ generate_load_reg_pc(ireg, rm, 8); \ if(shift != 0) \ { \ generate_shift_right_arithmetic(ireg, shift); \ generate_update_flag(c, REG_C_FLAG); \ } \ else \ { \ generate_shift_right_arithmetic(ireg, 31); \ generate_update_flag(nz, REG_C_FLAG); \ } \ #define generate_shift_imm_ror_flags(ireg) \ generate_load_reg_pc(ireg, rm, 8); \ if(shift != 0) \ { \ generate_rotate_right(ireg, shift); \ generate_update_flag(c, REG_C_FLAG) \ } \ else \ { \ generate_rrx_flags(ireg); \ } \ #define generate_shift_imm(ireg, name, flags_op) \ get_shift_imm(); \ generate_shift_imm_##name##_##flags_op(ireg) \ #define generate_load_rm_sh(flags_op) \ switch((opcode >> 4) & 0x07) \ { \ /* LSL imm */ \ case 0x0: \ { \ generate_shift_imm(a0, lsl, flags_op); \ break; \ } \ \ /* LSL reg */ \ case 0x1: \ { \ generate_shift_reg(a0, lsl, flags_op); \ break; \ } \ \ /* LSR imm */ \ case 0x2: \ { \ generate_shift_imm(a0, lsr, flags_op); \ break; \ } \ \ /* LSR reg */ \ case 0x3: \ { \ generate_shift_reg(a0, lsr, flags_op); \ break; \ } \ \ /* ASR imm */ \ case 0x4: \ { \ generate_shift_imm(a0, asr, flags_op); \ break; \ } \ \ /* ASR reg */ \ case 0x5: \ { \ generate_shift_reg(a0, asr, flags_op); \ break; \ } \ \ /* ROR imm */ \ case 0x6: \ { \ generate_shift_imm(a0, ror, flags_op); \ break; \ } \ \ /* ROR reg */ \ case 0x7: \ { \ generate_shift_reg(a0, ror, flags_op); \ break; \ } \ } \ #define generate_load_offset_sh() \ switch((opcode >> 5) & 0x03) \ { \ /* LSL imm */ \ case 0x0: \ { \ generate_shift_imm(a1, lsl, no_flags); \ break; \ } \ \ /* LSR imm */ \ case 0x1: \ { \ generate_shift_imm(a1, lsr, no_flags); \ break; \ } \ \ /* ASR imm */ \ case 0x2: \ { \ generate_shift_imm(a1, asr, no_flags); \ break; \ } \ \ /* ROR imm */ \ case 0x3: \ { \ generate_shift_imm(a1, ror, no_flags); \ break; \ } \ } \ #define extract_flags() \ reg[REG_N_FLAG] = reg[REG_CPSR] >> 31; \ reg[REG_Z_FLAG] = (reg[REG_CPSR] >> 30) & 0x01; \ reg[REG_C_FLAG] = (reg[REG_CPSR] >> 29) & 0x01; \ reg[REG_V_FLAG] = (reg[REG_CPSR] >> 28) & 0x01; \ #define collapse_flags(ireg, tmpreg) \ generate_load_reg(ireg, REG_V_FLAG); \ generate_load_reg(tmpreg, REG_C_FLAG); \ generate_shift_left(tmpreg, 1); \ generate_or(ireg, tmpreg); \ generate_load_reg(tmpreg, REG_Z_FLAG); \ generate_shift_left(tmpreg, 2); \ generate_or(ireg, tmpreg); \ generate_load_reg(tmpreg, REG_N_FLAG); \ generate_shift_left(tmpreg, 3); \ generate_or(ireg, tmpreg); \ generate_load_reg(tmpreg, REG_CPSR); \ generate_shift_left(ireg, 28); \ generate_and_imm(tmpreg, 0xFF); \ generate_or(ireg, tmpreg); \ generate_store_reg(ireg, REG_CPSR); \ // It should be okay to still generate result flags, spsr will overwrite them. // This is pretty infrequent (returning from interrupt handlers, et al) so // probably not worth optimizing for. #define check_for_interrupts() \ if((io_registers[REG_IE] & io_registers[REG_IF]) && \ io_registers[REG_IME] && ((reg[REG_CPSR] & 0x80) == 0)) \ { \ reg_mode[MODE_IRQ][6] = reg[REG_PC] + 4; \ spsr[MODE_IRQ] = reg[REG_CPSR]; \ reg[REG_CPSR] = 0xD2; \ address = 0x00000018; \ set_cpu_mode(MODE_IRQ); \ } \ #define generate_load_reg_pc(ireg, reg_index, pc_offset) \ if(reg_index == 15) \ { \ generate_load_pc(ireg, pc + pc_offset); \ } \ else \ { \ generate_load_reg(ireg, reg_index); \ } \ #define generate_store_reg_pc_no_flags(ireg, reg_index) \ generate_store_reg(ireg, reg_index); \ if(reg_index == 15) \ { \ generate_mov(a0, ireg); \ generate_indirect_branch_arm(); \ } \ u32 function_cc execute_spsr_restore(u32 address) { if(reg[CPU_MODE] != MODE_USER) { reg[REG_CPSR] = spsr[reg[CPU_MODE]]; extract_flags(); set_cpu_mode(cpu_modes[reg[REG_CPSR] & 0x1F]); check_for_interrupts(); if(reg[REG_CPSR] & 0x20) address |= 0x01; } return address; } #define generate_store_reg_pc_flags(ireg, reg_index) \ generate_store_reg(ireg, reg_index); \ if(reg_index == 15) \ { \ generate_mov(a0, ireg); \ generate_function_call(execute_spsr_restore); \ generate_mov(a0, rv); \ generate_indirect_branch_dual(); \ } \ #define generate_condition_eq(ireg) \ generate_load_reg(ireg, REG_Z_FLAG); \ generate_test_imm(ireg, 1); \ x86_emit_j_filler(x86_condition_code_z, backpatch_address) \ #define generate_condition_ne(ireg) \ generate_load_reg(ireg, REG_Z_FLAG); \ generate_test_imm(ireg, 1); \ x86_emit_j_filler(x86_condition_code_nz, backpatch_address) \ #define generate_condition_cs(ireg) \ generate_load_reg(ireg, REG_C_FLAG); \ generate_test_imm(ireg, 1); \ x86_emit_j_filler(x86_condition_code_z, backpatch_address) \ #define generate_condition_cc(ireg) \ generate_load_reg(ireg, REG_C_FLAG); \ generate_test_imm(ireg, 1); \ x86_emit_j_filler(x86_condition_code_nz, backpatch_address) \ #define generate_condition_mi(ireg) \ generate_load_reg(ireg, REG_N_FLAG); \ generate_test_imm(ireg, 1); \ x86_emit_j_filler(x86_condition_code_z, backpatch_address) \ #define generate_condition_pl(ireg) \ generate_load_reg(ireg, REG_N_FLAG); \ generate_test_imm(ireg, 1); \ x86_emit_j_filler(x86_condition_code_nz, backpatch_address) \ #define generate_condition_vs(ireg) \ generate_load_reg(ireg, REG_V_FLAG); \ generate_test_imm(ireg, 1); \ x86_emit_j_filler(x86_condition_code_z, backpatch_address) \ #define generate_condition_vc(ireg) \ generate_load_reg(ireg, REG_V_FLAG); \ generate_test_imm(ireg, 1); \ x86_emit_j_filler(x86_condition_code_nz, backpatch_address) \ #define generate_condition_hi(ireg) \ generate_load_reg(ireg, REG_C_FLAG); \ generate_xor_imm(ireg, 1); \ generate_or_mem(ireg, REG_Z_FLAG); \ x86_emit_j_filler(x86_condition_code_nz, backpatch_address) \ #define generate_condition_ls(ireg) \ generate_load_reg(ireg, REG_C_FLAG); \ generate_xor_imm(ireg, 1); \ generate_or_mem(ireg, REG_Z_FLAG); \ x86_emit_j_filler(x86_condition_code_z, backpatch_address) \ #define generate_condition_ge(ireg) \ generate_load_reg(ireg, REG_N_FLAG); \ generate_cmp_memreg(ireg, REG_V_FLAG); \ x86_emit_j_filler(x86_condition_code_nz, backpatch_address) \ #define generate_condition_lt(ireg) \ generate_load_reg(ireg, REG_N_FLAG); \ generate_cmp_memreg(ireg, REG_V_FLAG); \ x86_emit_j_filler(x86_condition_code_z, backpatch_address) \ #define generate_condition_gt(ireg) \ generate_load_reg(ireg, REG_N_FLAG); \ generate_xor_mem(ireg, REG_V_FLAG); \ generate_or_mem(ireg, REG_Z_FLAG); \ x86_emit_j_filler(x86_condition_code_nz, backpatch_address) \ #define generate_condition_le(ireg) \ generate_load_reg(ireg, REG_N_FLAG); \ generate_xor_mem(ireg, REG_V_FLAG); \ generate_or_mem(ireg, REG_Z_FLAG); \ x86_emit_j_filler(x86_condition_code_z, backpatch_address) \ #define generate_condition(ireg) \ switch(condition) \ { \ case 0x0: \ generate_condition_eq(ireg); \ break; \ \ case 0x1: \ generate_condition_ne(ireg); \ break; \ \ case 0x2: \ generate_condition_cs(ireg); \ break; \ \ case 0x3: \ generate_condition_cc(ireg); \ break; \ \ case 0x4: \ generate_condition_mi(ireg); \ break; \ \ case 0x5: \ generate_condition_pl(ireg); \ break; \ \ case 0x6: \ generate_condition_vs(ireg); \ break; \ \ case 0x7: \ generate_condition_vc(ireg); \ break; \ \ case 0x8: \ generate_condition_hi(ireg); \ break; \ \ case 0x9: \ generate_condition_ls(ireg); \ break; \ \ case 0xA: \ generate_condition_ge(ireg); \ break; \ \ case 0xB: \ generate_condition_lt(ireg); \ break; \ \ case 0xC: \ generate_condition_gt(ireg); \ break; \ \ case 0xD: \ generate_condition_le(ireg); \ break; \ \ case 0xE: \ /* AL */ \ break; \ \ case 0xF: \ /* Reserved */ \ break; \ } \ #define generate_branch() \ { \ if(condition == 0x0E) \ { \ generate_branch_cycle_update( \ block_exits[block_exit_position].branch_source, \ block_exits[block_exit_position].branch_target); \ } \ else \ { \ generate_branch_no_cycle_update( \ block_exits[block_exit_position].branch_source, \ block_exits[block_exit_position].branch_target); \ } \ block_exit_position++; \ } \ #define rm_op_reg rm #define rm_op_imm imm #define arm_data_proc_reg_flags() \ arm_decode_data_proc_reg(opcode); \ if(flag_status & 0x02) \ { \ generate_load_rm_sh(flags) \ } \ else \ { \ generate_load_rm_sh(no_flags); \ } \ #define arm_data_proc_reg() \ arm_decode_data_proc_reg(opcode); \ generate_load_rm_sh(no_flags) \ #define arm_data_proc_imm() \ arm_decode_data_proc_imm(opcode); \ ror(imm, imm, imm_ror); \ generate_load_imm(a0, imm) \ #define arm_data_proc_imm_flags() \ arm_decode_data_proc_imm(opcode); \ if((flag_status & 0x02) && (imm_ror != 0)) \ { \ /* Generate carry flag from integer rotation */ \ generate_load_imm(a0, ((imm >> (imm_ror - 1)) & 0x01)); \ generate_store_reg(a0, REG_C_FLAG); \ } \ ror(imm, imm, imm_ror); \ generate_load_imm(a0, imm) \ #define arm_data_proc(name, type, flags_op) \ { \ arm_data_proc_##type(); \ generate_load_reg_pc(a1, rn, 8); \ arm_data_proc_##name(rd, generate_store_reg_pc_##flags_op); \ } \ #define arm_data_proc_test(name, type) \ { \ arm_data_proc_##type(); \ generate_load_reg_pc(a1, rn, 8); \ arm_data_proc_test_##name(); \ } \ #define arm_data_proc_unary(name, type, flags_op) \ { \ arm_data_proc_##type(); \ arm_data_proc_unary_##name(rd, generate_store_reg_pc_##flags_op); \ } \ #define arm_data_proc_mov(type) \ { \ arm_data_proc_##type(); \ generate_store_reg_pc_no_flags(a0, rd); \ } \ #define arm_multiply_flags_yes() \ generate_update_flag(z, REG_Z_FLAG) \ generate_update_flag(s, REG_N_FLAG) #define arm_multiply_flags_no(_dest) \ #define arm_multiply_add_no() \ #define arm_multiply_add_yes() \ generate_load_reg(a1, rn); \ generate_add(a0, a1) \ #define arm_multiply(add_op, flags) \ { \ arm_decode_multiply(); \ generate_load_reg(a0, rm); \ generate_load_reg(a1, rs); \ generate_multiply(a1); \ arm_multiply_add_##add_op(); \ generate_store_reg(a0, rd); \ arm_multiply_flags_##flags(); \ } \ #define arm_multiply_long_flags_yes() \ generate_mov(s0, a1); \ generate_and(s0, s0); \ generate_update_flag(s, REG_N_FLAG) \ generate_or(s0, a0); \ generate_update_flag(z, REG_Z_FLAG) \ #define arm_multiply_long_flags_no(_dest) \ #define arm_multiply_long_add_yes(name) \ generate_load_reg(a2, rdlo); \ generate_load_reg(s0, rdhi); \ generate_multiply_##name(a1, a2, s0) \ #define arm_multiply_long_add_no(name) \ generate_multiply_##name(a1) \ #define arm_multiply_long(name, add_op, flags) \ { \ arm_decode_multiply_long(); \ generate_load_reg(a0, rm); \ generate_load_reg(a1, rs); \ arm_multiply_long_add_##add_op(name); \ generate_store_reg(a0, rdlo); \ generate_store_reg(a1, rdhi); \ arm_multiply_long_flags_##flags(); \ } \ #define execute_read_cpsr(oreg) \ collapse_flags(oreg, a2) #define execute_read_spsr(oreg) \ collapse_flags(oreg, a2); \ generate_load_reg(oreg, CPU_MODE); \ generate_load_spsr(oreg, oreg); \ #define arm_psr_read(op_type, psr_reg) \ execute_read_##psr_reg(rv); \ generate_store_reg(rv, rd) \ // store_mask and address are stored in the SAVE slots, since there's no real // register space to nicely pass them. u32 function_cc execute_store_cpsr_body(u32 _cpsr) { reg[REG_CPSR] = _cpsr; if(reg[REG_SAVE] & 0xFF) { set_cpu_mode(cpu_modes[_cpsr & 0x1F]); if((io_registers[REG_IE] & io_registers[REG_IF]) && io_registers[REG_IME] && ((_cpsr & 0x80) == 0)) { reg_mode[MODE_IRQ][6] = reg[REG_SAVE2] + 4; spsr[MODE_IRQ] = _cpsr; reg[REG_CPSR] = (_cpsr & 0xFFFFFF00) | 0xD2; set_cpu_mode(MODE_IRQ); return 0x00000018; } } return 0; } void function_cc execute_store_spsr(u32 new_spsr, u32 store_mask) { u32 _spsr = spsr[reg[CPU_MODE]]; spsr[reg[CPU_MODE]] = (new_spsr & store_mask) | (_spsr & (~store_mask)); } #define arm_psr_load_new_reg() \ generate_load_reg(a0, rm) \ #define arm_psr_load_new_imm() \ ror(imm, imm, imm_ror); \ generate_load_imm(a0, imm) \ #define arm_psr_store(op_type, psr_reg) \ arm_psr_load_new_##op_type(); \ generate_load_imm(a1, psr_masks[psr_field]); \ generate_load_pc(a2, (pc + 4)); \ generate_function_call(execute_store_##psr_reg) \ #define arm_psr(op_type, transfer_type, psr_reg) \ { \ arm_decode_psr_##op_type(opcode); \ arm_psr_##transfer_type(op_type, psr_reg); \ } \ #define aligned_address_mask8 0xF0000000 #define aligned_address_mask16 0xF0000001 #define aligned_address_mask32 0xF0000003 #define read_memory(size, type, address, dest) \ { \ u8 *map; \ \ if(((address >> 24) == 0) && (reg[REG_PC] >= 0x4000)) \ { \ ror(dest, bios_read_protect, (address & 0x03) << 3); \ dest = (type)dest; \ } \ else \ \ if(((address & aligned_address_mask##size) == 0) && \ (map = memory_map_read[address >> 15])) \ { \ dest = (type)readaddress##size(map, (address & 0x7FFF)); \ } \ else \ { \ dest = (type)read_memory##size(address); \ } \ } \ #define read_memory_s16(address, dest) \ { \ u8 *map; \ \ if(((address >> 24) == 0) && (reg[REG_PC] >= 0x4000)) \ { \ ror(dest, bios_read_protect, (address & 0x03) << 3); \ dest = (s16)dest; \ } \ else \ \ if(((address & aligned_address_mask16) == 0) && \ (map = memory_map_read[address >> 15])) \ { \ dest = *((s16 *)((u8 *)map + (address & 0x7FFF))); \ } \ else \ { \ dest = (s16)read_memory16_signed(address); \ } \ } \ #define access_memory_generate_read_function(mem_size, name, mem_type) \ u32 function_cc execute_load_##name(u32 address) \ { \ u32 dest; \ read_memory(mem_size, mem_type, address, dest); \ return dest; \ } \ access_memory_generate_read_function(8, u8, u8); access_memory_generate_read_function(8, s8, s8); access_memory_generate_read_function(16, u16, u32); access_memory_generate_read_function(32, u32, u32); u32 function_cc execute_load_s16(u32 address) { u32 dest; read_memory_s16(address, dest); return dest; } #define arm_access_memory_load(mem_type) \ cycle_count += 2; \ generate_function_call(execute_load_##mem_type); \ generate_store_reg_pc_no_flags(rv, rd) \ #define arm_access_memory_store(mem_type) \ cycle_count++; \ generate_load_reg_pc(a1, rd, 12); \ generate_load_pc(a2, (pc + 4)); \ generate_function_call(execute_store_##mem_type) \ #define no_op \ #define arm_access_memory_writeback_yes(off_op) \ reg[rn] = address off_op \ #define arm_access_memory_writeback_no(off_op) \ #define load_reg_op reg[rd] \ #define store_reg_op reg_op \ #define arm_access_memory_adjust_op_up add #define arm_access_memory_adjust_op_down sub #define arm_access_memory_reverse_op_up sub #define arm_access_memory_reverse_op_down add #define arm_access_memory_reg_pre(adjust_dir_op, reverse_dir_op) \ generate_load_reg_pc(a0, rn, 8); \ generate_##adjust_dir_op(a0, a1) \ #define arm_access_memory_reg_pre_wb(adjust_dir_op, reverse_dir_op) \ arm_access_memory_reg_pre(adjust_dir_op, reverse_dir_op); \ generate_store_reg(a0, rn) \ #define arm_access_memory_reg_post(adjust_dir_op, reverse_dir_op) \ generate_load_reg(a0, rn); \ generate_##adjust_dir_op(a0, a1); \ generate_store_reg(a0, rn); \ generate_##reverse_dir_op(a0, a1) \ #define arm_access_memory_imm_pre(adjust_dir_op, reverse_dir_op) \ generate_load_reg_pc(a0, rn, 8); \ generate_##adjust_dir_op##_imm(a0, offset) \ #define arm_access_memory_imm_pre_wb(adjust_dir_op, reverse_dir_op) \ arm_access_memory_imm_pre(adjust_dir_op, reverse_dir_op); \ generate_store_reg(a0, rn) \ #define arm_access_memory_imm_post(adjust_dir_op, reverse_dir_op) \ generate_load_reg(a0, rn); \ generate_##adjust_dir_op##_imm(a0, offset); \ generate_store_reg(a0, rn); \ generate_##reverse_dir_op##_imm(a0, offset) \ #define arm_data_trans_reg(adjust_op, adjust_dir_op, reverse_dir_op) \ arm_decode_data_trans_reg(); \ generate_load_offset_sh(); \ arm_access_memory_reg_##adjust_op(adjust_dir_op, reverse_dir_op) \ #define arm_data_trans_imm(adjust_op, adjust_dir_op, reverse_dir_op) \ arm_decode_data_trans_imm(); \ arm_access_memory_imm_##adjust_op(adjust_dir_op, reverse_dir_op) \ #define arm_data_trans_half_reg(adjust_op, adjust_dir_op, reverse_dir_op) \ arm_decode_half_trans_r(); \ generate_load_reg(a1, rm); \ arm_access_memory_reg_##adjust_op(adjust_dir_op, reverse_dir_op) \ #define arm_data_trans_half_imm(adjust_op, adjust_dir_op, reverse_dir_op) \ arm_decode_half_trans_of(); \ arm_access_memory_imm_##adjust_op(adjust_dir_op, reverse_dir_op) \ #define arm_access_memory(access_type, direction, adjust_op, mem_type, \ offset_type) \ { \ arm_data_trans_##offset_type(adjust_op, \ arm_access_memory_adjust_op_##direction, \ arm_access_memory_reverse_op_##direction); \ \ arm_access_memory_##access_type(mem_type); \ } \ #define word_bit_count(word) \ (bit_count[word >> 8] + bit_count[word & 0xFF]) \ #define sprint_no(access_type, pre_op, post_op, wb) \ #define sprint_yes(access_type, pre_op, post_op, wb) \ printf("sbit on %s %s %s %s\n", #access_type, #pre_op, #post_op, #wb) \ u32 function_cc execute_aligned_load32(u32 address) { u8 *map; if(!(address & 0xF0000000) && (map = memory_map_read[address >> 15])) return address32(map, address & 0x7FFF); else return read_memory32(address); } #define arm_block_memory_load() \ generate_function_call(execute_aligned_load32); \ generate_store_reg(rv, i) \ #define arm_block_memory_store() \ generate_load_reg_pc(a1, i, 8); \ generate_function_call(write_memory32) \ #define arm_block_memory_final_load() \ arm_block_memory_load() \ #define arm_block_memory_final_store() \ generate_load_reg_pc(a1, i, 12); \ generate_load_pc(a2, (pc + 4)); \ generate_function_call(execute_store_u32) \ #define arm_block_memory_adjust_pc_store() \ #define arm_block_memory_adjust_pc_load() \ if(reg_list & 0x8000) \ { \ generate_mov(a0, rv); \ generate_indirect_branch_arm(); \ } \ #define arm_block_memory_offset_down_a() \ generate_add_imm(s0, -((word_bit_count(reg_list) * 4) - 4)) \ #define arm_block_memory_offset_down_b() \ generate_add_imm(s0, -(word_bit_count(reg_list) * 4)) \ #define arm_block_memory_offset_no() \ #define arm_block_memory_offset_up() \ generate_add_imm(s0, 4) \ #define arm_block_memory_writeback_down() \ generate_load_reg(a0, rn) \ generate_add_imm(a0, -(word_bit_count(reg_list) * 4)); \ generate_store_reg(a0, rn) \ #define arm_block_memory_writeback_up() \ generate_load_reg(a0, rn); \ generate_add_imm(a0, (word_bit_count(reg_list) * 4)); \ generate_store_reg(a0, rn) \ #define arm_block_memory_writeback_no() // Only emit writeback if the register is not in the list #define arm_block_memory_writeback_load(writeback_type) \ if(!((reg_list >> rn) & 0x01)) \ { \ arm_block_memory_writeback_##writeback_type(); \ } \ #define arm_block_memory_writeback_store(writeback_type) \ arm_block_memory_writeback_##writeback_type() \ #define arm_block_memory(access_type, offset_type, writeback_type, s_bit) \ { \ arm_decode_block_trans(); \ u32 offset = 0; \ u32 i; \ \ generate_load_reg(s0, rn); \ arm_block_memory_offset_##offset_type(); \ arm_block_memory_writeback_##access_type(writeback_type); \ generate_and_imm(s0, ~0x03); \ \ for(i = 0; i < 16; i++) \ { \ if((reg_list >> i) & 0x01) \ { \ cycle_count++; \ generate_add_reg_reg_imm(a0, s0, offset) \ if(reg_list & ~((2 << i) - 1)) \ { \ arm_block_memory_##access_type(); \ offset += 4; \ } \ else \ { \ arm_block_memory_final_##access_type(); \ } \ } \ } \ \ arm_block_memory_adjust_pc_##access_type(); \ } \ #define arm_swap(type) \ { \ arm_decode_swap(); \ cycle_count += 3; \ generate_load_reg(a0, rn); \ generate_function_call(execute_load_##type); \ generate_mov(s0, rv); \ generate_load_reg(a0, rn); \ generate_load_reg(a1, rm); \ generate_function_call(execute_store_##type); \ generate_store_reg(s0, rd); \ } \ #define thumb_rn_op_reg(_rn) \ generate_load_reg(a0, _rn) \ #define thumb_rn_op_imm(_imm) \ generate_load_imm(a0, _imm) \ // Types: add_sub, add_sub_imm, alu_op, imm // Affects N/Z/C/V flags #define thumb_data_proc(type, name, rn_type, _rd, _rs, _rn) \ { \ thumb_decode_##type(); \ thumb_rn_op_##rn_type(_rn); \ generate_load_reg(a1, _rs); \ arm_data_proc_##name(_rd, generate_store_reg); \ } \ #define thumb_data_proc_test(type, name, rn_type, _rs, _rn) \ { \ thumb_decode_##type(); \ thumb_rn_op_##rn_type(_rn); \ generate_load_reg(a1, _rs); \ arm_data_proc_test_##name(); \ } \ #define thumb_data_proc_unary(type, name, rn_type, _rd, _rn) \ { \ thumb_decode_##type(); \ thumb_rn_op_##rn_type(_rn); \ arm_data_proc_unary_##name(_rd, generate_store_reg); \ } \ #define thumb_data_proc_mov(type, rn_type, _rd, _rn) \ { \ thumb_decode_##type(); \ thumb_rn_op_##rn_type(_rn); \ generate_store_reg(a0, _rd); \ } \ #define generate_store_reg_pc_thumb(ireg, rd) \ generate_store_reg(ireg, rd); \ if(rd == 15) \ { \ generate_indirect_branch_cycle_update(thumb); \ } \ #define thumb_data_proc_hi(name) \ { \ thumb_decode_hireg_op(); \ generate_load_reg_pc(a0, rs, 4); \ generate_load_reg_pc(a1, rd, 4); \ arm_data_proc_##name(rd, generate_store_reg_pc_thumb); \ } \ #define thumb_data_proc_test_hi(name) \ { \ thumb_decode_hireg_op(); \ generate_load_reg_pc(a0, rs, 4); \ generate_load_reg_pc(a1, rd, 4); \ arm_data_proc_test_##name(); \ } \ #define thumb_data_proc_unary_hi(name) \ { \ thumb_decode_hireg_op(); \ generate_load_reg_pc(a0, rn, 4); \ arm_data_proc_unary_##name(rd, generate_store_reg_pc_thumb); \ } \ #define thumb_data_proc_mov_hi() \ { \ thumb_decode_hireg_op(); \ generate_load_reg_pc(a0, rs, 4); \ generate_store_reg_pc_thumb(a0, rd); \ } \ #define thumb_load_pc(_rd) \ { \ thumb_decode_imm(); \ generate_load_pc(a0, (((pc & ~2) + 4) + (imm * 4))); \ generate_store_reg(a0, _rd); \ } \ #define thumb_load_sp(_rd) \ { \ thumb_decode_imm(); \ generate_load_reg(a0, 13); \ generate_add_imm(a0, (imm * 4)); \ generate_store_reg(a0, _rd); \ } \ #define thumb_adjust_sp_up() \ generate_add_imm(a0, imm * 4) \ #define thumb_adjust_sp_down() \ generate_sub_imm(a0, imm * 4) \ #define thumb_adjust_sp(direction) \ { \ thumb_decode_add_sp(); \ generate_load_reg(a0, REG_SP); \ thumb_adjust_sp_##direction(); \ generate_store_reg(a0, REG_SP); \ } \ // Decode types: shift, alu_op // Operation types: lsl, lsr, asr, ror // Affects N/Z/C flags #define thumb_lsl_imm_op() \ if (imm) { \ generate_shift_left(a0, imm); \ generate_update_flag(c, REG_C_FLAG) \ } else { \ generate_or(a0, a0); \ } \ generate_update_flag(z, REG_Z_FLAG) \ generate_update_flag(s, REG_N_FLAG) \ #define thumb_lsr_imm_op() \ if (imm) { \ generate_shift_right(a0, imm); \ generate_update_flag(c, REG_C_FLAG) \ } else { \ generate_shift_right(a0, 31); \ generate_update_flag(nz, REG_C_FLAG) \ generate_xor(a0, a0); \ } \ generate_update_flag(z, REG_Z_FLAG) \ generate_update_flag(s, REG_N_FLAG) \ #define thumb_asr_imm_op() \ if (imm) { \ generate_shift_right_arithmetic(a0, imm); \ generate_update_flag(c, REG_C_FLAG) \ } else { \ generate_shift_right_arithmetic(a0, 31); \ generate_update_flag(s, REG_C_FLAG) \ } \ generate_update_flag(z, REG_Z_FLAG) \ generate_update_flag(s, REG_N_FLAG) \ #define thumb_ror_imm_op() \ if (imm) { \ generate_rotate_right(a0, imm); \ generate_update_flag(c, REG_C_FLAG) \ } else { \ generate_rrx_flags(a0); \ } \ generate_update_flag(z, REG_Z_FLAG) \ generate_update_flag(s, REG_N_FLAG) \ #define generate_shift_load_operands_reg() \ generate_load_reg(a0, rd); \ generate_load_reg(a1, rs) \ #define generate_shift_load_operands_imm() \ generate_load_reg(a0, rs); \ generate_load_imm(a1, imm) \ #define thumb_shift_operation_imm(op_type) \ thumb_##op_type##_imm_op() #define thumb_shift_operation_reg(op_type) \ generate_##op_type##_flags_reg(a0); \ generate_or(a0, a0); \ generate_update_flag(z, REG_Z_FLAG) \ generate_update_flag(s, REG_N_FLAG) \ #define thumb_shift(decode_type, op_type, value_type) \ { \ thumb_decode_##decode_type(); \ generate_shift_load_operands_##value_type(); \ thumb_shift_operation_##value_type(op_type); \ generate_store_reg(rv, rd); \ } \ // Operation types: imm, mem_reg, mem_imm #define thumb_load_pc_pool_const(reg_rd, value) \ generate_load_pc(a0, (value)); \ generate_store_reg(a0, reg_rd) #define thumb_access_memory_load(mem_type, reg_rd) \ cycle_count += 2; \ generate_function_call(execute_load_##mem_type); \ generate_store_reg(rv, reg_rd) \ #define thumb_access_memory_store(mem_type, reg_rd) \ cycle_count++; \ generate_load_reg(a1, reg_rd); \ generate_load_pc(a2, (pc + 2)); \ generate_function_call(execute_store_##mem_type) \ #define thumb_access_memory_generate_address_pc_relative(offset, _rb, _ro) \ generate_load_pc(a0, (offset)) \ #define thumb_access_memory_generate_address_reg_imm_sp(offset, _rb, _ro) \ generate_load_reg(a0, _rb); \ generate_add_imm(a0, (offset * 4)) \ #define thumb_access_memory_generate_address_reg_imm(offset, _rb, _ro) \ generate_load_reg(a0, _rb); \ generate_add_imm(a0, (offset)) \ #define thumb_access_memory_generate_address_reg_reg(offset, _rb, _ro) \ generate_load_reg(a0, _rb); \ generate_load_reg(a1, _ro); \ generate_add(a0, a1) \ #define thumb_access_memory(access_type, op_type, _rd, _rb, _ro, \ address_type, offset, mem_type) \ { \ thumb_decode_##op_type(); \ thumb_access_memory_generate_address_##address_type(offset, _rb, _ro); \ thumb_access_memory_##access_type(mem_type, _rd); \ } \ #define thumb_block_address_preadjust_up() \ generate_add_imm(s0, (bit_count[reg_list] * 4)) \ #define thumb_block_address_preadjust_down() \ generate_sub_imm(s0, (bit_count[reg_list] * 4)) \ #define thumb_block_address_preadjust_push_lr() \ generate_sub_imm(s0, ((bit_count[reg_list] + 1) * 4)) \ #define thumb_block_address_preadjust_no() \ #define thumb_block_address_postadjust_no(base_reg) \ generate_store_reg(s0, base_reg) \ #define thumb_block_address_postadjust_up(base_reg) \ generate_add_reg_reg_imm(a0, s0, (bit_count[reg_list] * 4)); \ generate_store_reg(a0, base_reg) \ #define thumb_block_address_postadjust_down(base_reg) \ generate_mov(a0, s0); \ generate_sub_imm(a0, (bit_count[reg_list] * 4)); \ generate_store_reg(a0, base_reg) \ #define thumb_block_address_postadjust_pop_pc(base_reg) \ generate_add_reg_reg_imm(a0, s0, ((bit_count[reg_list] + 1) * 4)); \ generate_store_reg(a0, base_reg) \ #define thumb_block_address_postadjust_push_lr(base_reg) \ generate_store_reg(s0, base_reg) \ #define thumb_block_memory_extra_no() \ #define thumb_block_memory_extra_up() \ #define thumb_block_memory_extra_down() \ #define thumb_block_memory_extra_pop_pc() \ generate_add_reg_reg_imm(a0, s0, (bit_count[reg_list] * 4)); \ generate_function_call(execute_aligned_load32); \ generate_store_reg(rv, REG_PC); \ generate_mov(a0, rv); \ generate_indirect_branch_cycle_update(thumb) \ #define thumb_block_memory_extra_push_lr(base_reg) \ generate_add_reg_reg_imm(a0, s0, (bit_count[reg_list] * 4)); \ generate_load_reg(a1, REG_LR); \ generate_function_call(write_memory32) \ #define thumb_block_memory_load() \ generate_function_call(execute_aligned_load32); \ generate_store_reg(rv, i) \ #define thumb_block_memory_store() \ generate_load_reg(a1, i); \ generate_function_call(write_memory32) \ #define thumb_block_memory_final_load() \ thumb_block_memory_load() \ #define thumb_block_memory_final_store() \ generate_load_reg(a1, i); \ generate_load_pc(a2, (pc + 2)); \ generate_function_call(execute_store_u32) \ #define thumb_block_memory_final_no(access_type) \ thumb_block_memory_final_##access_type() \ #define thumb_block_memory_final_up(access_type) \ thumb_block_memory_final_##access_type() \ #define thumb_block_memory_final_down(access_type) \ thumb_block_memory_final_##access_type() \ #define thumb_block_memory_final_push_lr(access_type) \ thumb_block_memory_##access_type() \ #define thumb_block_memory_final_pop_pc(access_type) \ thumb_block_memory_##access_type() \ #define thumb_block_memory(access_type, pre_op, post_op, base_reg) \ { \ thumb_decode_rlist(); \ u32 i; \ u32 offset = 0; \ \ generate_load_reg(s0, base_reg); \ generate_and_imm(s0, ~0x03); \ thumb_block_address_preadjust_##pre_op(); \ thumb_block_address_postadjust_##post_op(base_reg); \ \ for(i = 0; i < 8; i++) \ { \ if((reg_list >> i) & 0x01) \ { \ cycle_count++; \ generate_add_reg_reg_imm(a0, s0, offset) \ if(reg_list & ~((2 << i) - 1)) \ { \ thumb_block_memory_##access_type(); \ offset += 4; \ } \ else \ { \ thumb_block_memory_final_##post_op(access_type); \ } \ } \ } \ \ thumb_block_memory_extra_##post_op(); \ } \ #define thumb_conditional_branch(condition) \ { \ generate_cycle_update(); \ generate_condition_##condition(a0); \ generate_branch_no_cycle_update( \ block_exits[block_exit_position].branch_source, \ block_exits[block_exit_position].branch_target); \ generate_branch_patch_conditional(backpatch_address, translation_ptr); \ block_exit_position++; \ } \ // Execute functions #define update_logical_flags() \ generate_update_flag(z, REG_Z_FLAG) \ generate_update_flag(s, REG_N_FLAG) #define update_add_flags() \ update_logical_flags() \ generate_update_flag(c, REG_C_FLAG) \ generate_update_flag(o, REG_V_FLAG) #define update_sub_flags() \ update_logical_flags() \ generate_update_flag(nc, REG_C_FLAG) \ generate_update_flag(o, REG_V_FLAG) #define arm_data_proc_and(rd, storefnc) \ generate_and(a0, a1); \ storefnc(a0, rd); #define arm_data_proc_ands(rd, storefnc) \ arm_data_proc_and(rd, storefnc); \ update_logical_flags() #define arm_data_proc_eor(rd, storefnc) \ generate_xor(a0, a1); \ storefnc(a0, rd); #define arm_data_proc_eors(rd, storefnc) \ arm_data_proc_eor(rd, storefnc); \ update_logical_flags() #define arm_data_proc_orr(rd, storefnc) \ generate_or(a0, a1); \ storefnc(a0, rd); #define arm_data_proc_orrs(rd, storefnc) \ arm_data_proc_orr(rd, storefnc); \ update_logical_flags() #define arm_data_proc_bic(rd, storefnc) \ generate_not(a0); \ generate_and(a0, a1); \ storefnc(a0, rd); #define arm_data_proc_bics(rd, storefnc) \ arm_data_proc_bic(rd, storefnc); \ update_logical_flags() #define arm_data_proc_add(rd, storefnc) \ generate_add(a0, a1); \ storefnc(a0, rd); #define arm_data_proc_adds(rd, storefnc) \ arm_data_proc_add(rd, storefnc); \ update_add_flags(); // Argument ordering is inverted between arm and x86 #define arm_data_proc_sub(rd, storefnc) \ generate_sub(a1, a0); \ storefnc(a1, rd); #define arm_data_proc_rsb(rd, storefnc) \ generate_sub(a0, a1); \ storefnc(a0, rd); // Borrow flag in ARM is opposite to carry flag in x86 #define arm_data_proc_subs(rd, storefnc) \ arm_data_proc_sub(rd, storefnc) \ update_sub_flags() #define arm_data_proc_rsbs(rd, storefnc) \ arm_data_proc_rsb(rd, storefnc) \ update_sub_flags() #define arm_data_proc_mul(rd, storefnc) \ generate_multiply(a1); \ storefnc(a0, rd); #define arm_data_proc_muls(rd, storefnc) \ arm_data_proc_mul(rd, storefnc); \ update_logical_flags(); #define arm_data_proc_adc(rd, storefnc) \ /* Loads the flag to the right value by adding it to ~0 causing carry */ \ generate_load_imm(a2, 0xffffffff); \ generate_add_memreg(a2, REG_C_FLAG); \ generate_adc(a0, a1); \ storefnc(a0, rd); #define arm_data_proc_adcs(rd, storefnc) \ arm_data_proc_adc(rd, storefnc) \ update_add_flags() #define arm_data_proc_sbc(rd, storefnc) \ generate_load_reg(a2, REG_C_FLAG); \ generate_sub_imm(a2, 1); \ generate_sbb(a1, a0); \ storefnc(a1, rd); #define arm_data_proc_sbcs(rd, storefnc) \ arm_data_proc_sbc(rd, storefnc) \ update_sub_flags() #define arm_data_proc_rsc(rd, storefnc) \ generate_load_reg(a2, REG_C_FLAG); \ generate_sub_imm(a2, 1); \ generate_sbb(a0, a1); \ storefnc(a0, rd); #define arm_data_proc_rscs(rd, storefnc) \ arm_data_proc_rsc(rd, storefnc) \ update_sub_flags() #define arm_data_proc_test_cmp() \ generate_sub(a1, a0); \ update_sub_flags() #define arm_data_proc_test_cmn() \ generate_add(a1, a0); \ update_add_flags() #define arm_data_proc_test_tst() \ generate_and(a0, a1); \ update_logical_flags() #define arm_data_proc_test_teq() \ generate_xor(a0, a1); \ update_logical_flags() #define arm_data_proc_unary_mov(rd, storefnc) \ storefnc(a0, rd); #define arm_data_proc_unary_movs(rd, storefnc) \ arm_data_proc_unary_mov(rd, storefnc); \ generate_or(a0, a0); \ update_logical_flags() #define arm_data_proc_unary_mvn(rd, storefnc) \ generate_not(a0); \ storefnc(a0, rd); #define arm_data_proc_unary_mvns(rd, storefnc) \ arm_data_proc_unary_mvn(rd, storefnc); \ /* NOT does not update the flag register */ \ generate_or(a0, a0); \ update_logical_flags() #define arm_data_proc_unary_neg(rd, storefnc) \ generate_xor(a1, a1); \ arm_data_proc_subs(rd, storefnc) static void function_cc execute_swi(u32 pc) { // Open bus value after SWI bios_read_protect = 0xe3a02004; reg_mode[MODE_SUPERVISOR][6] = pc; spsr[MODE_SUPERVISOR] = reg[REG_CPSR]; // Move to ARM mode, supervisor mode, disable IRQs reg[REG_CPSR] = (reg[REG_CPSR] & ~0x3F) | 0x13 | 0x80; set_cpu_mode(MODE_SUPERVISOR); } #define arm_conditional_block_header() \ generate_cycle_update(); \ generate_condition(a0); \ #define arm_b() \ generate_branch() \ #define arm_bl() \ generate_update_pc((pc + 4)); \ generate_store_reg(a0, REG_LR); \ generate_branch() \ #define arm_bx() \ arm_decode_branchx(opcode); \ generate_load_reg(a0, rn); \ generate_indirect_branch_dual(); \ #define arm_swi() \ collapse_flags(a0, a1); \ generate_update_pc((pc + 4)); \ generate_function_call(execute_swi); \ generate_branch() \ #define thumb_b() \ generate_branch_cycle_update( \ block_exits[block_exit_position].branch_source, \ block_exits[block_exit_position].branch_target); \ block_exit_position++ \ #define thumb_bl() \ generate_update_pc(((pc + 2) | 0x01)); \ generate_store_reg(a0, REG_LR); \ generate_branch_cycle_update( \ block_exits[block_exit_position].branch_source, \ block_exits[block_exit_position].branch_target); \ block_exit_position++ \ #define thumb_blh() \ { \ thumb_decode_branch(); \ generate_update_pc(((pc + 2) | 0x01)); \ generate_load_reg(a1, REG_LR); \ generate_store_reg(a0, REG_LR); \ generate_mov(a0, a1); \ generate_add_imm(a0, (offset * 2)); \ generate_indirect_branch_cycle_update(thumb); \ } \ #define thumb_bx() \ { \ thumb_decode_hireg_op(); \ generate_load_reg_pc(a0, rs, 4); \ generate_indirect_branch_cycle_update(dual); \ } \ #define thumb_process_cheats() \ generate_function_call(process_cheats); #define arm_process_cheats() \ generate_function_call(process_cheats); #define thumb_swi() \ collapse_flags(a0, a1); \ generate_update_pc((pc + 2)); \ generate_function_call(execute_swi); \ generate_branch_cycle_update( \ block_exits[block_exit_position].branch_source, \ block_exits[block_exit_position].branch_target); \ block_exit_position++ \ #define arm_hle_div(cpu_mode) \ { \ u8 *jmpinst; \ generate_load_reg(a0, 0); \ generate_load_reg(a2, 1); \ generate_cmp_imm(a2, 0); \ x86_emit_j_filler(x86_condition_code_z, jmpinst); \ x86_emit_cdq(); \ x86_emit_idiv_eax_reg(ecx); \ generate_store_reg(a0, 0); \ generate_store_reg(a1, 1); \ generate_mov(a1, a0); \ generate_shift_right(a1, 31); \ generate_xor(a1, a0); \ generate_shift_right_arithmetic(a0, 31); \ generate_add(a0, a1); \ generate_store_reg(a0, 3); \ generate_branch_patch_conditional(jmpinst, translation_ptr); \ } #define arm_hle_div_arm(cpu_mode) \ { \ u8 *jmpinst; \ generate_load_reg(a0, 1); \ generate_load_reg(a2, 0); \ generate_cmp_imm(a2, 0); \ x86_emit_j_filler(x86_condition_code_z, jmpinst); \ x86_emit_cdq(); \ x86_emit_idiv_eax_reg(ecx); \ generate_store_reg(a0, 0); \ generate_store_reg(a1, 1); \ generate_mov(a1, a0); \ generate_shift_right(a1, 31); \ generate_xor(a1, a0); \ generate_shift_right_arithmetic(a0, 31); \ generate_add(a0, a1); \ generate_store_reg(a0, 3); \ generate_branch_patch_conditional(jmpinst, translation_ptr); \ } #define generate_translation_gate(type) \ generate_update_pc(pc); \ generate_indirect_branch_no_cycle_update(type) \ extern u32 x86_table_data[3][16]; extern u32 x86_table_info[3][16]; void init_emitter(void) { memcpy(x86_table_info, x86_table_data, sizeof(x86_table_data)); rom_cache_watermark = INITIAL_ROM_WATERMARK; init_bios_hooks(); } u32 function_cc execute_arm_translate_internal(u32 cycles, void *regptr); u32 execute_arm_translate(u32 cycles) { return execute_arm_translate_internal(cycles, ®[0]); } #endif