cannon: Fix jalr stack tracking (#11831)

89c3d35d · Inphi · GitHub · f93f9f40 · 89c3d35d
Commit 89c3d35d authored Sep 10, 2024 by Inphi Committed by GitHub Sep 10, 2024
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mips_instructions.go cannon/mipsevm/exec/mips_instructions.go +3 -1

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--- a/cannon/mipsevm/exec/mips_instructions.go
+++ b/cannon/mipsevm/exec/mips_instructions.go
@@ -86,8 +86,10 @@ func ExecMipsCoreStepLogic(cpu *mipsevm.CpuScalars, registers *[32]uint32, memor
 			linkReg := uint32(0)
 			if fun == 9 {
 				linkReg = rdReg
+				stackTracker.PushStack(cpu.PC, rs)
+			} else {
+				stackTracker.PopStack()
 			}
-			stackTracker.PopStack()
 			return HandleJump(cpu, registers, linkReg, rs)
 		}