First, we were writing to the entire SR register, instead of only the flags portion. Second, we were not clearing C as per the documentation (X was cleared via the 0xf mask).
Signed-off-by: Richard Henderson <richard.hender...@linaro.org> --- target/m68k/translate.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/target/m68k/translate.c b/target/m68k/translate.c index 5098f7e570..87044382c3 100644 --- a/target/m68k/translate.c +++ b/target/m68k/translate.c @@ -5892,8 +5892,10 @@ DISAS_INSN(from_mext) DISAS_INSN(macsr_to_ccr) { TCGv tmp = tcg_temp_new(); - tcg_gen_andi_i32(tmp, QREG_MACSR, 0xf); - gen_helper_set_sr(cpu_env, tmp); + + /* Note that X and C are always cleared. */ + tcg_gen_andi_i32(tmp, QREG_MACSR, CCF_N | CCF_Z | CCF_V); + gen_helper_set_ccr(cpu_env, tmp); tcg_temp_free(tmp); set_cc_op(s, CC_OP_FLAGS); } -- 2.34.1