diff options
| -rw-r--r-- | tcg/i386/tcg-target.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/tcg/i386/tcg-target.c b/tcg/i386/tcg-target.c index a7ff8a3b4c..f4fdce51ce 100644 --- a/tcg/i386/tcg-target.c +++ b/tcg/i386/tcg-target.c @@ -1479,6 +1479,12 @@ static void tcg_out_qemu_st_direct(TCGContext *s, TCGReg datalo, TCGReg datahi, switch (memop & MO_SIZE) { case MO_8: + /* In 32-bit mode, 8-byte stores can only happen from [abcd]x. + Use the scratch register if necessary. */ + if (TCG_TARGET_REG_BITS == 32 && datalo >= 4) { + tcg_out_mov(s, TCG_TYPE_I32, scratch, datalo); + datalo = scratch; + } tcg_out_modrm_offset(s, OPC_MOVB_EvGv + P_REXB_R + seg, datalo, base, ofs); break; @@ -2084,7 +2090,7 @@ static const TCGTargetOpDef x86_op_defs[] = { { INDEX_op_qemu_ld32, { "r", "L" } }, { INDEX_op_qemu_ld64, { "r", "r", "L" } }, - { INDEX_op_qemu_st8, { "cb", "L" } }, + { INDEX_op_qemu_st8, { "L", "L" } }, { INDEX_op_qemu_st16, { "L", "L" } }, { INDEX_op_qemu_st32, { "L", "L" } }, { INDEX_op_qemu_st64, { "L", "L", "L" } }, @@ -2096,7 +2102,7 @@ static const TCGTargetOpDef x86_op_defs[] = { { INDEX_op_qemu_ld32, { "r", "L", "L" } }, { INDEX_op_qemu_ld64, { "r", "r", "L", "L" } }, - { INDEX_op_qemu_st8, { "cb", "L", "L" } }, + { INDEX_op_qemu_st8, { "L", "L", "L" } }, { INDEX_op_qemu_st16, { "L", "L", "L" } }, { INDEX_op_qemu_st32, { "L", "L", "L" } }, { INDEX_op_qemu_st64, { "L", "L", "L", "L" } }, |