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Implement OR

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taitep
2025-12-22 19:29:31 +01:00
parent 1ddda6614a
commit d0d3775b88
2 changed files with 10 additions and 0 deletions
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1
src/instructions.rs
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@@ -17,6 +17,7 @@ pub(crate) fn find_and_exec(instr: Instruction, core: &mut Core) -> Option<Instr
// OP // OP
(0b0000000, 0b000) => Some(rvi::add(core, instr)), (0b0000000, 0b000) => Some(rvi::add(core, instr)),
(0b0000000, 0b111) => Some(rvi::and(core, instr)), (0b0000000, 0b111) => Some(rvi::and(core, instr)),
(0b0000000, 0b110) => Some(rvi::or(core, instr)),
_ => None, _ => None,
}, },
0b00100 => match instr.funct3() { 0b00100 => match instr.funct3() {

9
src/instructions/rvi.rs
View File

@@ -52,6 +52,15 @@ pub fn andi(core: &mut Core, instr: Instruction) -> InstructionResult {
InstructionResult::Normal InstructionResult::Normal
} }
pub fn or(core: &mut Core, instr: Instruction) -> InstructionResult {
core.reg_write(
instr.rd(),
core.reg_read(instr.rs1()) | core.reg_read(instr.rs2()),
);
core.advance_pc();
InstructionResult::Normal
}
pub fn slli(core: &mut Core, instr: Instruction) -> InstructionResult { pub fn slli(core: &mut Core, instr: Instruction) -> InstructionResult {
core.reg_write(instr.rd(), core.reg_read(instr.rs1()) << instr.imm_shamt()); core.reg_write(instr.rd(), core.reg_read(instr.rs1()) << instr.imm_shamt());
core.advance_pc(); core.advance_pc();