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[v3,09/17] target/m68k: Fix stack frame for EXCP_ILLEGAL

Message ID 20220316055840.727571-10-richard.henderson@linaro.org
State Superseded
Headers show
Series target/m68k: Conditional traps + trap cleanup | expand

Commit Message

Richard Henderson March 16, 2022, 5:58 a.m. UTC 
According to the M68040 Users Manual, section 8.4.3, Four word
stack frame (format 0), includes Illegal Instruction.  Use the
correct frame format, which does not use the ADDR argument.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/m68k/op_helper.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
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Patch

diff --git a/target/m68k/op_helper.c b/target/m68k/op_helper.c
index 4140f65422..6aebf9d737 100644
--- a/target/m68k/op_helper.c
+++ b/target/m68k/op_helper.c
@@ -391,11 +391,14 @@  static void m68k_interrupt_all(CPUM68KState *env, int is_hw)
         }
         break;
 
+    case EXCP_ILLEGAL:
+        do_stack_frame(env, &sp, 0, oldsr, 0, env->pc);
+        break;
+
     case EXCP_ADDRESS:
         do_stack_frame(env, &sp, 2, oldsr, 0, env->pc);
         break;
 
-    case EXCP_ILLEGAL:
     case EXCP_TRAPCC:
         /* FIXME: addr is not only env->pc */
         do_stack_frame(env, &sp, 2, oldsr, env->pc, env->pc);