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tcg/x86: add bswap16_i32 ops 

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6837 c046a42c-6fe2-441c-8c8c-71466251a162
master
aurel32 2009-03-13 09:35:49 +00:00
parent 8777643e48
commit 5d40cd6302
2 changed files with 7 additions and 0 deletions
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6
tcg/i386/tcg-target.c
View File

@ -1034,6 +1034,11 @@ static inline void tcg_out_op(TCGContext *s, int opc,
tcg_out_brcond2(s, args, const_args);
break;
case INDEX_op_bswap16_i32:
tcg_out8(s, 0x66);
tcg_out_modrm(s, 0xc1, SHIFT_ROL, args[0]);
tcg_out8(s, 8);
break;
case INDEX_op_bswap32_i32:
tcg_out_opc(s, (0xc8 + args[0]) | P_EXT);
break;
@ -1130,6 +1135,7 @@ static const TCGTargetOpDef x86_op_defs[] = {
{ INDEX_op_sub2_i32, { "r", "r", "0", "1", "ri", "ri" } },
{ INDEX_op_brcond2_i32, { "r", "r", "ri", "ri" } },
{ INDEX_op_bswap16_i32, { "r", "0" } },
{ INDEX_op_bswap32_i32, { "r", "0" } },
{ INDEX_op_neg_i32, { "r", "0" } },

1
tcg/i386/tcg-target.h
View File

@ -45,6 +45,7 @@ enum {
#define TCG_TARGET_CALL_STACK_OFFSET 0
/* optional instructions */
#define TCG_TARGET_HAS_bswap16_i32
#define TCG_TARGET_HAS_bswap32_i32
#define TCG_TARGET_HAS_neg_i32
#define TCG_TARGET_HAS_not_i32