diff --git a/encoding.md b/encoding.md index 84e9f3f..804a493 100644 --- a/encoding.md +++ b/encoding.md @@ -17,7 +17,7 @@ If the instruction doesn't allow variable sizes or a size was not specified, set | 0x | -0 | -1 | -2 | -3 | -4 | -5 | -6 | -7 | -8 | -9 | -A | -B | -C | -D | -E | -F | | :-: | ---- | ------------- | ------------- | ------------- | ------------- | ------------- | ------------- | -------------- | ---- | ----- | -------------- | --- | --- | --- | --- | --- | | 0- | NOP | ADD[.8,16,32] | MUL[.8,16,32] | AND[.8,16,32] | SLA[.8,16,32] | SRA[.8,16,32] | BSE[.8,16,32] | CMP[.8,16,32] | JMP | RJMP | PUSH[.8,16,32] | IN | ISE | | | | -| 1- | HALT | INC[.8,16,32] | POW[.8,16,32] | OR[.8,16,32] | | SRL[.8,16,32] | BCL[.8,16,32] | MOV[.8,16,32] | CALL | RCALL | POP[.8,16,32] | OUT | ICL | | | | +| 1- | HALT | INC[.8,16,32] | | OR[.8,16,32] | | SRL[.8,16,32] | BCL[.8,16,32] | MOV[.8,16,32] | CALL | RCALL | POP[.8,16,32] | OUT | ICL | | | | | 2- | BRK | SUB[.8,16,32] | DIV[.8,16,32] | XOR[.8,16,32] | ROL[.8,16,32] | ROR[.8,16,32] | BTS[.8,16,32] | MOVZ[.8,16,32] | LOOP | RLOOP | RET | | | | | | | 3- | | DEC[.8,16,32] | REM[.8,16,32] | NOT[.8,16,32] | | | | | | RTA | RETI | | | | | | @@ -48,4 +48,4 @@ If the instruction doesn't allow variable sizes or a size was not specified, set | 0b00 | register | | 0b01 | register (pointer) | | 0b10 | immediate | -| 0b11 | immediate (pointer) | \ No newline at end of file +| 0b11 | immediate (pointer) | diff --git a/src/cpu.rs b/src/cpu.rs index 11c69d3..9fec1a6 100644 --- a/src/cpu.rs +++ b/src/cpu.rs @@ -794,96 +794,6 @@ impl Cpu { } self.instruction_pointer + instruction_pointer_offset } - Instruction::Pow(size, condition, destination, source) => { - let (source_value, mut instruction_pointer_offset) = self.read_source(source); - let should_run = self.check_condition(condition); - match destination { - Operand::Register => { - let register = self.bus.memory.read_8(self.instruction_pointer + instruction_pointer_offset); - match size { - Size::Byte => { - if should_run { - let result = (self.read_register(register) as u8).pow(source_value); - self.write_register(register, (self.read_register(register) & 0xFFFFFF00) | (result as u32)); - self.flag.zero = result == 0; - } - } - Size::Half => { - if should_run { - let result = (self.read_register(register) as u16).pow(source_value); - self.write_register(register, (self.read_register(register) & 0xFFFF0000) | (result as u32)); - self.flag.zero = result == 0; - } - } - Size::Word => { - if should_run { - let result = self.read_register(register).pow(source_value); - self.write_register(register, result); - self.flag.zero = result == 0; - } - } - } - instruction_pointer_offset += 1; // increment past 8 bit register number - } - Operand::RegisterPtr => { - let register = self.bus.memory.read_8(self.instruction_pointer + instruction_pointer_offset); - let pointer = self.read_register(register); - match size { - Size::Byte => { - let result = self.bus.memory.read_8(pointer).pow(source_value); - if should_run { - self.bus.memory.write_8(pointer, result); - self.flag.zero = result == 0; - } - } - Size::Half => { - let result = self.bus.memory.read_16(pointer).pow(source_value); - if should_run { - self.bus.memory.write_16(pointer, result); - self.flag.zero = result == 0; - } - } - Size::Word => { - let result = self.bus.memory.read_32(pointer).pow(source_value); - if should_run { - self.bus.memory.write_32(pointer, result); - self.flag.zero = result == 0; - } - } - } - instruction_pointer_offset += 1; // increment past 8 bit register number - } - Operand::ImmediatePtr(_) => { - let pointer = self.bus.memory.read_32(self.instruction_pointer + instruction_pointer_offset); - match size { - Size::Byte => { - let result = self.bus.memory.read_8(pointer).pow(source_value); - if should_run { - self.bus.memory.write_8(pointer, result); - self.flag.zero = result == 0; - } - } - Size::Half => { - let result = self.bus.memory.read_16(pointer).pow(source_value); - if should_run { - self.bus.memory.write_16(pointer, result); - self.flag.zero = result == 0; - } - } - Size::Word => { - let result = self.bus.memory.read_32(pointer).pow(source_value); - if should_run { - self.bus.memory.write_32(pointer, result); - self.flag.zero = result == 0; - } - } - } - instruction_pointer_offset += 4; // increment past 32 bit pointer - } - _ => panic!("Attempting to use an immediate value as a destination"), - } - self.instruction_pointer + instruction_pointer_offset - } Instruction::Div(size, condition, destination, source) => { let (source_value, mut instruction_pointer_offset) = self.read_source(source); let should_run = self.check_condition(condition); @@ -2707,7 +2617,6 @@ enum Instruction { Dec(Size, Condition, Operand), Mul(Size, Condition, Operand, Operand), - Pow(Size, Condition, Operand, Operand), Div(Size, Condition, Operand, Operand), Rem(Size, Condition, Operand, Operand), @@ -2802,7 +2711,6 @@ impl Instruction { 0x31 => Some(Instruction::Dec(size, condition, source)), 0x02 => Some(Instruction::Mul(size, condition, destination, source)), - 0x12 => Some(Instruction::Pow(size, condition, destination, source)), 0x22 => Some(Instruction::Div(size, condition, destination, source)), 0x32 => Some(Instruction::Rem(size, condition, destination, source)),