taitep/trve
1
1
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

WHY WAS I USING S-TYPE IMMEDIATE IN LD (also add some more debugging info on an exception)

Browse Source
This commit is contained in:
taitep
2025-12-22 18:00:15 +01:00
parent 48477bd8b1
commit 7177633477
2 changed files with 2 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
src/core.rs
View File

@@ -64,6 +64,7 @@ impl Core {
InstructionResult::Normal => {}
InstructionResult::Exception(_e) => {
eprintln!("Exception from instruction");
eprintln!("PC: {:016X}, instr: {:08X}", self.pc, instr.0);
break;
}
InstructionResult::Pause => {

2
src/instructions/rvi.rs
View File

@@ -62,7 +62,7 @@ pub fn sd(core: &mut Core, instr: Instruction) -> InstructionResult {
}
pub fn ld(core: &mut Core, instr: Instruction) -> InstructionResult {
let addr = core.reg_read(instr.rs1()).wrapping_add(instr.imm_s());
let addr = core.reg_read(instr.rs1()).wrapping_add(instr.imm_i());
if !addr.is_multiple_of(std::mem::size_of::<DWord>() as Addr) {
return InstructionResult::Exception(());