cpu/arm: fix branch and exchange

Signed-off-by: Amneesh Singh <natto@weirdnatto.in>
2024-06-11 23:27:07 +05:30
parent f34efb183f
commit 1a2e101ebd
2 changed files with 10 additions and 3 deletions
--- a/src/cpu/thumb/exec.cc
+++ b/src/cpu/thumb/exec.cc
@@ -168,7 +168,10 @@ Instruction::exec(Cpu& cpu) {
                        cpu.is_flushed = true;
                } break;
                case HiRegisterOperations::OpCode::BX: {
-                    State state = static_cast<State>(op_2 & 1);
+                    State state = static_cast<State>(get_bit(op_2, 0));
+
+                    if (state != cpu.cpsr.state())
+                        glogger.info_bold("State changed");

                    // set state
                    cpu.cpsr.set_state(state);