68000 CPUs do not save format in the exception stack frame. This patch adds feature checking to prevent format saving for 68000. m68k_ret() already includes this modification, this patch fixes the exception processing function too.
Signed-off-by: Pavel Dovgalyuk <pavel.dovga...@ispras.ru> --- target/m68k/op_helper.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/target/m68k/op_helper.c b/target/m68k/op_helper.c index 3a7f7f2..e367133 100644 --- a/target/m68k/op_helper.c +++ b/target/m68k/op_helper.c @@ -301,8 +301,11 @@ static inline void do_stack_frame(CPUM68KState *env, uint32_t *sp, cpu_stl_kernel(env, *sp, addr); break; } - *sp -= 2; - cpu_stw_kernel(env, *sp, (format << 12) + (cs->exception_index << 2)); + if (m68k_feature(env, M68K_FEATURE_QUAD_MULDIV)) { + /* all except 68000 */ + *sp -= 2; + cpu_stw_kernel(env, *sp, (format << 12) + (cs->exception_index << 2)); + } *sp -= 4; cpu_stl_kernel(env, *sp, retaddr); *sp -= 2;