aboutsummaryrefslogtreecommitdiff
path: root/target-ppc
diff options
context:
space:
mode:
Diffstat (limited to 'target-ppc')
-rw-r--r--target-ppc/mem_helper.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/target-ppc/mem_helper.c b/target-ppc/mem_helper.c
index 6d37dae7b0..7e1f234aa5 100644
--- a/target-ppc/mem_helper.c
+++ b/target-ppc/mem_helper.c
@@ -100,8 +100,9 @@ void helper_lswx(CPUPPCState *env, target_ulong addr, uint32_t reg,
uint32_t ra, uint32_t rb)
{
if (likely(xer_bc != 0)) {
- if (unlikely((ra != 0 && reg < ra && (reg + xer_bc) > ra) ||
- (reg < rb && (reg + xer_bc) > rb))) {
+ int num_used_regs = (xer_bc + 3) / 4;
+ if (unlikely((ra != 0 && reg < ra && (reg + num_used_regs) > ra) ||
+ (reg < rb && (reg + num_used_regs) > rb))) {
helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM,
POWERPC_EXCP_INVAL |
POWERPC_EXCP_INVAL_LSWX);