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[PATCH v2 12/15] target/m68k: Fix stack frame for EXCP_ILLEGAL


From: Richard Henderson
Subject: [PATCH v2 12/15] target/m68k: Fix stack frame for EXCP_ILLEGAL
Date: Thu, 2 Dec 2021 12:48:57 -0800

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 | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/target/m68k/op_helper.c b/target/m68k/op_helper.c
index 811b8bd117..10d459f704 100644
--- a/target/m68k/op_helper.c
+++ b/target/m68k/op_helper.c
@@ -395,8 +395,7 @@ static void m68k_interrupt_all(CPUM68KState *env, int is_hw)
         break;
 
     case EXCP_ILLEGAL:
-        /* FIXME: addr is not only env->pc */
-        do_stack_frame(env, &sp, 2, oldsr, env->pc, env->pc);
+        do_stack_frame(env, &sp, 0, oldsr, 0, env->pc);
         break;
 
     case EXCP_CHK:
-- 
2.25.1




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