diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2012-04-24 18:05:05 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2012-04-27 11:07:52 +0000 |
| commit | 10962fd510bb381acc6694156bd675e5d86f32d8 (patch) | |
| tree | 717eef66cc4c5a521f69e9d630abfa01c9bc4731 /target-arm/translate.c | |
| parent | c5fad12fa08228d0c2f04089ba0cd27718f1b723 (diff) | |
target-arm: Make SETEND respect bswap_code (BE8) setting
Make the SETEND instruction respect the setting of bswap_code,
so that in BE8 mode we UNDEF for attempts to switch into
little-endian mode and nop for attempts to stay in big-endian
mode. (This is the inverse of the existing handling of SETEND
in the more common little-endian setup, which we use since
we don't implement the architecturally-mandated dynamic
endianness switching.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-arm/translate.c')
| -rw-r--r-- | target-arm/translate.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/target-arm/translate.c b/target-arm/translate.c index 7a3c7d650c..437d9dbf0e 100644 --- a/target-arm/translate.c +++ b/target-arm/translate.c @@ -6767,8 +6767,8 @@ static void disas_arm_insn(CPUARMState * env, DisasContext *s) if ((insn & 0x0ffffdff) == 0x01010000) { ARCH(6); /* setend */ - if (insn & (1 << 9)) { - /* BE8 mode not implemented. */ + if (((insn >> 9) & 1) != s->bswap_code) { + /* Dynamic endianness switching not implemented. */ goto illegal_op; } return; @@ -9710,8 +9710,8 @@ static void disas_thumb_insn(CPUARMState *env, DisasContext *s) case 2: /* setend */ ARCH(6); - if (insn & (1 << 3)) { - /* BE8 mode not implemented. */ + if (((insn >> 3) & 1) != s->bswap_code) { + /* Dynamic endianness switching not implemented. */ goto illegal_op; } break; |