gwj / at91sam9263 · Commits

Commit 9a5c57fdc1ffa558cf3ebda39d6e088662d5607d

Authored by aurel32
1 parent dfa1a3f1

tcg: add bswap16_i64 and bswap32_i64 TCG ops 

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

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6832 c046a42c-6fe2-441c-8c8c-71466251a162
Inline Side-by-side
Showing 2 changed files with 64 additions and 0 deletions
tcg/tcg-op.h
  View file @9a5c57f
... ... @@ -1297,6 +1297,20 @@ static inline void tcg_gen_ext_i32_i64(TCGv_i64 ret, TCGv_i32 arg)
1297 1297 tcg_gen_sari_i32(TCGV_HIGH(ret), TCGV_LOW(ret), 31);
1298 1298 }
1299 1299  
  1300 +/* Note: we assume the six high bytes are set to zero */
  1301 +static inline void tcg_gen_bswap16_i64(TCGv_i64 ret, TCGv_i64 arg)
  1302 +{
  1303 + tcg_gen_mov_i32(TCGV_HIGH(ret), TCGV_HIGH(arg));
  1304 + tcg_gen_bswap16_i32(TCGV_LOW(ret), TCGV_LOW(arg));
  1305 +}
  1306 +
  1307 +/* Note: we assume the four high bytes are set to zero */
  1308 +static inline void tcg_gen_bswap32_i64(TCGv_i64 ret, TCGv_i64 arg)
  1309 +{
  1310 + tcg_gen_mov_i32(TCGV_HIGH(ret), TCGV_HIGH(arg));
  1311 + tcg_gen_bswap32_i32(TCGV_LOW(ret), TCGV_LOW(arg));
  1312 +}
  1313 +
1300 1314 static inline void tcg_gen_bswap64_i64(TCGv_i64 ret, TCGv_i64 arg)
1301 1315 {
1302 1316 TCGv_i32 t0, t1;
... ... @@ -1378,6 +1392,50 @@ static inline void tcg_gen_ext_i32_i64(TCGv_i64 ret, TCGv_i32 arg)
1378 1392 tcg_gen_ext32s_i64(ret, MAKE_TCGV_I64(GET_TCGV_I32(arg)));
1379 1393 }
1380 1394  
  1395 +/* Note: we assume the six high bytes are set to zero */
  1396 +static inline void tcg_gen_bswap16_i64(TCGv_i64 ret, TCGv_i64 arg)
  1397 +{
  1398 +#ifdef TCG_TARGET_HAS_bswap16_i64
  1399 + tcg_gen_op2_i64(INDEX_op_bswap16_i64, ret, arg);
  1400 +#else
  1401 + TCGv_i64 t0 = tcg_temp_new_i64();
  1402 +
  1403 + tcg_gen_ext8u_i64(t0, arg);
  1404 + tcg_gen_shli_i64(t0, t0, 8);
  1405 + tcg_gen_shri_i64(ret, arg, 8);
  1406 + tcg_gen_or_i64(ret, ret, t0);
  1407 + tcg_temp_free_i64(t0);
  1408 +#endif
  1409 +}
  1410 +
  1411 +/* Note: we assume the four high bytes are set to zero */
  1412 +static inline void tcg_gen_bswap32_i64(TCGv_i64 ret, TCGv_i64 arg)
  1413 +{
  1414 +#ifdef TCG_TARGET_HAS_bswap32_i64
  1415 + tcg_gen_op2_i64(INDEX_op_bswap32_i64, ret, arg);
  1416 +#else
  1417 + TCGv_i64 t0, t1;
  1418 + t0 = tcg_temp_new_i64();
  1419 + t1 = tcg_temp_new_i64();
  1420 +
  1421 + tcg_gen_shli_i64(t0, arg, 24);
  1422 + tcg_gen_ext32u_i64(t0, t0);
  1423 +
  1424 + tcg_gen_andi_i64(t1, arg, 0x0000ff00);
  1425 + tcg_gen_shli_i64(t1, t1, 8);
  1426 + tcg_gen_or_i64(t0, t0, t1);
  1427 +
  1428 + tcg_gen_shri_i64(t1, arg, 8);
  1429 + tcg_gen_andi_i64(t1, t1, 0x0000ff00);
  1430 + tcg_gen_or_i64(t0, t0, t1);
  1431 +
  1432 + tcg_gen_shri_i64(t1, arg, 24);
  1433 + tcg_gen_or_i64(ret, t0, t1);
  1434 + tcg_temp_free_i64(t0);
  1435 + tcg_temp_free_i64(t1);
  1436 +#endif
  1437 +}
  1438 +
1381 1439 static inline void tcg_gen_bswap64_i64(TCGv_i64 ret, TCGv_i64 arg)
1382 1440 {
1383 1441 #ifdef TCG_TARGET_HAS_bswap64_i64
... ...
tcg/tcg-opc.h
  View file @9a5c57f
... ... @@ -152,6 +152,12 @@ DEF2(ext16s_i64, 1, 1, 0, 0)
152 152 #ifdef TCG_TARGET_HAS_ext32s_i64
153 153 DEF2(ext32s_i64, 1, 1, 0, 0)
154 154 #endif
  155 +#ifdef TCG_TARGET_HAS_bswap16_i64
  156 +DEF2(bswap16_i64, 1, 1, 0, 0)
  157 +#endif
  158 +#ifdef TCG_TARGET_HAS_bswap32_i64
  159 +DEF2(bswap32_i64, 1, 1, 0, 0)
  160 +#endif
155 161 #ifdef TCG_TARGET_HAS_bswap64_i64
156 162 DEF2(bswap64_i64, 1, 1, 0, 0)
157 163 #endif
... ...