diff options
Diffstat (limited to 'target/arm/translate-vfp.inc.c')
| -rw-r--r-- | target/arm/translate-vfp.inc.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/target/arm/translate-vfp.inc.c b/target/arm/translate-vfp.inc.c index 9ae980bef6..85c5ef897b 100644 --- a/target/arm/translate-vfp.inc.c +++ b/target/arm/translate-vfp.inc.c @@ -703,9 +703,10 @@ static bool trans_VMSR_VMRS(DisasContext *s, arg_VMSR_VMRS *a) if (arm_dc_feature(s, ARM_FEATURE_M)) { /* * The only M-profile VFP vmrs/vmsr sysreg is FPSCR. - * Writes to R15 are UNPREDICTABLE; we choose to undef. + * Accesses to R15 are UNPREDICTABLE; we choose to undef. + * (FPSCR -> r15 is a special case which writes to the PSR flags.) */ - if (a->rt == 15 || a->reg != ARM_VFP_FPSCR) { + if (a->rt == 15 && (!a->l || a->reg != ARM_VFP_FPSCR)) { return false; } } |