diff options
Diffstat (limited to 'target-ppc/mem_helper.c')
| -rw-r--r-- | target-ppc/mem_helper.c | 5 |
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); |