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Fix divide by zero in the x86 BIOS HLE 

Fixes ~10 games that divide zero by zero
This commit is contained in:
David Guillen Fandos 2021-09-16 19:30:30 +02:00
parent 401adca6ae
commit 9b0d685092
1 changed files with 12 additions and 0 deletions
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12
x86/x86_emit.h
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@ -2238,8 +2238,12 @@ static void function_cc execute_swi(u32 pc)
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); \
@ -2250,10 +2254,16 @@ static void function_cc execute_swi(u32 pc)
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); \
@ -2264,6 +2274,8 @@ static void function_cc execute_swi(u32 pc)
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); \