diff --git a/src/cpu.c b/src/cpu.c index 46c8c65..6d0bb6d 100644 --- a/src/cpu.c +++ b/src/cpu.c @@ -861,6 +861,20 @@ static void vm_skipparam(vm_t *vm, uint32_t size, uint8_t prtype) { break; \ } +#define VM_IMPL_DIV(_size, _type, _type_target, _vm_source, _vm_source_stay, _vm_target, _oper) { \ + VM_PRELUDE_2(_size); \ + _type a = (_type) _vm_source(vm, instr.source); \ + _type b = (_type) _vm_source_stay(vm, instr.target); \ + if (a == 0) { \ + vm_panic(vm, FOX32_ERR_DIVZERO); \ + break; \ + } \ + _type x = _oper(b, a); \ + vm->flag_zero = x == 0; \ + _vm_target(vm, instr.target, (_type_target) x); \ + break; \ +} + #define VM_IMPL_CMP(_size, _type, _vm_source) { \ VM_PRELUDE_0(); \ _type a = _vm_source(vm, instr.source); \ @@ -1020,18 +1034,18 @@ static void vm_execute(vm_t *vm) { case OP(SZ_HALF, OP_IMUL): VM_IMPL_ADD(SIZE16, int16_t, uint16_t, vm_source16, vm_source16_stay, vm_target16, CHECKED_MUL); case OP(SZ_WORD, OP_IMUL): VM_IMPL_ADD(SIZE32, int32_t, uint32_t, vm_source32, vm_source32_stay, vm_target32, CHECKED_MUL); - case OP(SZ_BYTE, OP_DIV): VM_IMPL_AND(SIZE8, uint8_t, uint8_t, vm_source8, vm_source8_stay, vm_target8, OPER_DIV); - case OP(SZ_HALF, OP_DIV): VM_IMPL_AND(SIZE16, uint16_t, uint16_t, vm_source16, vm_source16_stay, vm_target16, OPER_DIV); - case OP(SZ_WORD, OP_DIV): VM_IMPL_AND(SIZE32, uint32_t, uint32_t, vm_source32, vm_source32_stay, vm_target32, OPER_DIV); - case OP(SZ_BYTE, OP_REM): VM_IMPL_AND(SIZE8, uint8_t, uint8_t, vm_source8, vm_source8_stay, vm_target8, OPER_REM); - case OP(SZ_HALF, OP_REM): VM_IMPL_AND(SIZE16, uint16_t, uint16_t, vm_source16, vm_source16_stay, vm_target16, OPER_REM); - case OP(SZ_WORD, OP_REM): VM_IMPL_AND(SIZE32, uint32_t, uint32_t, vm_source32, vm_source32_stay, vm_target32, OPER_REM); - case OP(SZ_BYTE, OP_IDIV): VM_IMPL_AND(SIZE8, int8_t, uint8_t, vm_source8, vm_source8_stay, vm_target8, OPER_DIV); - case OP(SZ_HALF, OP_IDIV): VM_IMPL_AND(SIZE16, int16_t, uint16_t, vm_source16, vm_source16_stay, vm_target16, OPER_DIV); - case OP(SZ_WORD, OP_IDIV): VM_IMPL_AND(SIZE32, int32_t, uint32_t, vm_source32, vm_source32_stay, vm_target32, OPER_DIV); - case OP(SZ_BYTE, OP_IREM): VM_IMPL_AND(SIZE8, int8_t, uint8_t, vm_source8, vm_source8_stay, vm_target8, OPER_REM); - case OP(SZ_HALF, OP_IREM): VM_IMPL_AND(SIZE16, int16_t, uint16_t, vm_source16, vm_source16_stay, vm_target16, OPER_REM); - case OP(SZ_WORD, OP_IREM): VM_IMPL_AND(SIZE32, int32_t, uint32_t, vm_source32, vm_source32_stay, vm_target32, OPER_REM); + case OP(SZ_BYTE, OP_DIV): VM_IMPL_DIV(SIZE8, uint8_t, uint8_t, vm_source8, vm_source8_stay, vm_target8, OPER_DIV); + case OP(SZ_HALF, OP_DIV): VM_IMPL_DIV(SIZE16, uint16_t, uint16_t, vm_source16, vm_source16_stay, vm_target16, OPER_DIV); + case OP(SZ_WORD, OP_DIV): VM_IMPL_DIV(SIZE32, uint32_t, uint32_t, vm_source32, vm_source32_stay, vm_target32, OPER_DIV); + case OP(SZ_BYTE, OP_REM): VM_IMPL_DIV(SIZE8, uint8_t, uint8_t, vm_source8, vm_source8_stay, vm_target8, OPER_REM); + case OP(SZ_HALF, OP_REM): VM_IMPL_DIV(SIZE16, uint16_t, uint16_t, vm_source16, vm_source16_stay, vm_target16, OPER_REM); + case OP(SZ_WORD, OP_REM): VM_IMPL_DIV(SIZE32, uint32_t, uint32_t, vm_source32, vm_source32_stay, vm_target32, OPER_REM); + case OP(SZ_BYTE, OP_IDIV): VM_IMPL_DIV(SIZE8, int8_t, uint8_t, vm_source8, vm_source8_stay, vm_target8, OPER_DIV); + case OP(SZ_HALF, OP_IDIV): VM_IMPL_DIV(SIZE16, int16_t, uint16_t, vm_source16, vm_source16_stay, vm_target16, OPER_DIV); + case OP(SZ_WORD, OP_IDIV): VM_IMPL_DIV(SIZE32, int32_t, uint32_t, vm_source32, vm_source32_stay, vm_target32, OPER_DIV); + case OP(SZ_BYTE, OP_IREM): VM_IMPL_DIV(SIZE8, int8_t, uint8_t, vm_source8, vm_source8_stay, vm_target8, OPER_REM); + case OP(SZ_HALF, OP_IREM): VM_IMPL_DIV(SIZE16, int16_t, uint16_t, vm_source16, vm_source16_stay, vm_target16, OPER_REM); + case OP(SZ_WORD, OP_IREM): VM_IMPL_DIV(SIZE32, int32_t, uint32_t, vm_source32, vm_source32_stay, vm_target32, OPER_REM); case OP(SZ_BYTE, OP_AND): VM_IMPL_AND(SIZE8, uint8_t, uint8_t, vm_source8, vm_source8_stay, vm_target8, OPER_AND); case OP(SZ_HALF, OP_AND): VM_IMPL_AND(SIZE16, uint16_t, uint16_t, vm_source16, vm_source16_stay, vm_target16, OPER_AND);