dogeystamp/lc3-vm
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chore: format

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This commit is contained in:
dogeystamp 2024-01-05 22:20:30 -05:00
parent 60ad020d14
commit aa413bcaf2
Signed by: dogeystamp
GPG Key ID: 7225FE3592EFFA38
1 changed files with 27 additions and 26 deletions
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53
src/vm/instruction.rs
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@ -4,6 +4,7 @@
use crate::vm::VM; use crate::vm::VM;
#[derive(Debug)]
enum OpCode { enum OpCode {
// branch // branch
BR = 0, BR = 0,
@ -44,23 +45,23 @@ enum OpCode {
fn get_opcode(instruction: u16) -> OpCode { fn get_opcode(instruction: u16) -> OpCode {
// the opcode is stored in the left 4 bits // the opcode is stored in the left 4 bits
match instruction >> 12 { match instruction >> 12 {
0 => OpCode::BR, 0 => OpCode::BR,
1 => OpCode::ADD, 1 => OpCode::ADD,
2 => OpCode::LD, 2 => OpCode::LD,
3 => OpCode::ST, 3 => OpCode::ST,
4 => OpCode::JSR, 4 => OpCode::JSR,
5 => OpCode::AND, 5 => OpCode::AND,
6 => OpCode::LDR, 6 => OpCode::LDR,
7 => OpCode::STR, 7 => OpCode::STR,
8 => OpCode::RTI, 8 => OpCode::RTI,
9 => OpCode::NOT, 9 => OpCode::NOT,
10 => OpCode::LDI, 10 => OpCode::LDI,
11 => OpCode::STI, 11 => OpCode::STI,
12 => OpCode::JMP, 12 => OpCode::JMP,
13 => OpCode::RES, 13 => OpCode::RES,
14 => OpCode::LEA, 14 => OpCode::LEA,
15 => OpCode::TRAP, 15 => OpCode::TRAP,
_ => OpCode::NOOP, _ => OpCode::NOOP,
} }
} }
@ -69,21 +70,21 @@ pub fn execute_instruction(vm: &mut VM) {
let opcode = get_opcode(instruction); let opcode = get_opcode(instruction);
match opcode { match opcode {
OpCode::BR => no_op(vm), OpCode::BR => no_op(vm),
OpCode::ADD => no_op(vm), OpCode::ADD => no_op(vm),
OpCode::LD => no_op(vm), OpCode::LD => no_op(vm),
OpCode::ST => no_op(vm), OpCode::ST => no_op(vm),
OpCode::JSR => no_op(vm), OpCode::JSR => no_op(vm),
OpCode::AND => no_op(vm), OpCode::AND => no_op(vm),
OpCode::LDR => no_op(vm), OpCode::LDR => no_op(vm),
OpCode::STR => no_op(vm), OpCode::STR => no_op(vm),
OpCode::RTI => no_op(vm), OpCode::RTI => no_op(vm),
OpCode::NOT => no_op(vm), OpCode::NOT => no_op(vm),
OpCode::LDI => no_op(vm), OpCode::LDI => no_op(vm),
OpCode::STI => no_op(vm), OpCode::STI => no_op(vm),
OpCode::JMP => no_op(vm), OpCode::JMP => no_op(vm),
OpCode::RES => no_op(vm), OpCode::RES => no_op(vm),
OpCode::LEA => no_op(vm), OpCode::LEA => no_op(vm),
OpCode::TRAP => no_op(vm), OpCode::TRAP => no_op(vm),
OpCode::NOOP => no_op(vm), OpCode::NOOP => no_op(vm),
} }