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[Qemu-devel] [PATCH 3/9] tcg: add bswap16_i64 and bswap32_i64 TCG ops
From: |
Aurelien Jarno |
Subject: |
[Qemu-devel] [PATCH 3/9] tcg: add bswap16_i64 and bswap32_i64 TCG ops |
Date: |
Wed, 11 Mar 2009 12:08:19 +0100 |
Signed-off-by: Aurelien Jarno <address@hidden>
---
tcg/tcg-op.h | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
tcg/tcg-opc.h | 6 +++++
2 files changed, 64 insertions(+), 0 deletions(-)
diff --git a/tcg/tcg-op.h b/tcg/tcg-op.h
index fa0f01c..652a374 100644
--- a/tcg/tcg-op.h
+++ b/tcg/tcg-op.h
@@ -1300,6 +1300,18 @@ static inline void tcg_gen_ext_i32_i64(TCGv_i64 ret,
TCGv_i32 arg)
tcg_gen_sari_i32(TCGV_HIGH(ret), TCGV_LOW(ret), 31);
}
+/* Note: we assume the six high bytes are set to zero */
+static inline void tcg_gen_bswap16_i64(TCGv_i64 ret, TCGv_i64 arg)
+{
+ tcg_gen_bswap16_i32(TCGV_LOW(ret), TCGV_LOW(arg));
+}
+
+/* Note: we assume the four high bytes are set to zero */
+static inline void tcg_gen_bswap32_i64(TCGv_i64 ret, TCGv_i64 arg)
+{
+ tcg_gen_bswap32_i32(TCGV_LOW(ret), TCGV_LOW(arg));
+}
+
static inline void tcg_gen_bswap64_i64(TCGv_i64 ret, TCGv_i64 arg)
{
TCGv_i32 t0, t1;
@@ -1381,6 +1393,52 @@ static inline void tcg_gen_ext_i32_i64(TCGv_i64 ret,
TCGv_i32 arg)
tcg_gen_ext32s_i64(ret, MAKE_TCGV_I64(GET_TCGV_I32(arg)));
}
+/* Note: we assume the six high bytes are set to zero */
+static inline void tcg_gen_bswap16_i64(TCGv_i64 ret, TCGv_i64 arg)
+{
+#ifdef TCG_TARGET_HAS_bswap16_i64
+ tcg_gen_op2_i64(INDEX_op_bswap16_i64, ret, arg);
+#else
+ TCGv_i64 t0, t1;
+ t0 = tcg_temp_new_i64();
+ t1 = tcg_temp_new_i64();
+
+ tcg_gen_shri_i64(t0, arg, 8);
+ tcg_gen_andi_i64(t1, arg, 0x000000ff);
+ tcg_gen_shli_i64(t1, t1, 8);
+ tcg_gen_or_i64(ret, t0, t1);
+ tcg_temp_free_i64(t0);
+ tcg_temp_free_i64(t1);
+#endif
+}
+
+/* Note: we assume the four high bytes are set to zero */
+static inline void tcg_gen_bswap32_i64(TCGv_i64 ret, TCGv_i64 arg)
+{
+#ifdef TCG_TARGET_HAS_bswap32_i64
+ tcg_gen_op2_i64(INDEX_op_bswap32_i64, ret, arg);
+#else
+ TCGv_i64 t0, t1;
+ t0 = tcg_temp_new_i64();
+ t1 = tcg_temp_new_i64();
+
+ tcg_gen_shli_i64(t0, arg, 24);
+
+ tcg_gen_andi_i64(t1, arg, 0x0000ff00);
+ tcg_gen_shli_i64(t1, t1, 8);
+ tcg_gen_or_i64(t0, t0, t1);
+
+ tcg_gen_shri_i64(t1, arg, 8);
+ tcg_gen_andi_i64(t1, t1, 0x0000ff00);
+ tcg_gen_or_i64(t0, t0, t1);
+
+ tcg_gen_shri_i64(t1, arg, 24);
+ tcg_gen_or_i64(ret, t0, t1);
+ tcg_temp_free_i64(t0);
+ tcg_temp_free_i64(t1);
+#endif
+}
+
static inline void tcg_gen_bswap64_i64(TCGv_i64 ret, TCGv_i64 arg)
{
#ifdef TCG_TARGET_HAS_bswap64_i64
diff --git a/tcg/tcg-opc.h b/tcg/tcg-opc.h
index b5fc197..3a095fc 100644
--- a/tcg/tcg-opc.h
+++ b/tcg/tcg-opc.h
@@ -152,6 +152,12 @@ DEF2(ext16s_i64, 1, 1, 0, 0)
#ifdef TCG_TARGET_HAS_ext32s_i64
DEF2(ext32s_i64, 1, 1, 0, 0)
#endif
+#ifdef TCG_TARGET_HAS_bswap16_i64
+DEF2(bswap16_i64, 1, 1, 0, 0)
+#endif
+#ifdef TCG_TARGET_HAS_bswap32_i64
+DEF2(bswap32_i64, 1, 1, 0, 0)
+#endif
#ifdef TCG_TARGET_HAS_bswap64_i64
DEF2(bswap64_i64, 1, 1, 0, 0)
#endif
--
1.6.1.3
- [Qemu-devel] [PATCH 0/9] tcg: reorganize bswap* functions, Aurelien Jarno, 2009/03/11
- [Qemu-devel] [PATCH 2/9] tcg: allow bswap16_i32 to be implemented by TCG backends, Aurelien Jarno, 2009/03/11
- [Qemu-devel] [PATCH 4/9] tcg: add _tl aliases to bswap16/32/64 TCG ops, Aurelien Jarno, 2009/03/11
- [Qemu-devel] [PATCH 5/9] tcg: update README wrt recent bswap changes, Aurelien Jarno, 2009/03/11
- [Qemu-devel] [PATCH 7/9] target-i386: use the new bswap* TCG ops, Aurelien Jarno, 2009/03/11
- [Qemu-devel] [PATCH 9/9] tcg/x86_64: add bswap16_i{32, 64} and bswap32_i64 ops, Aurelien Jarno, 2009/03/11
- [Qemu-devel] [PATCH 8/9] tcg/x86: add bswap16_i32 ops, Aurelien Jarno, 2009/03/11
- [Qemu-devel] [PATCH 3/9] tcg: add bswap16_i64 and bswap32_i64 TCG ops,
Aurelien Jarno <=
- [Qemu-devel] [PATCH 6/9] target-ppc: use the new bswap* TCG ops, Aurelien Jarno, 2009/03/11
- [Qemu-devel] [PATCH 1/9] tcg: rename bswap_i32/i64 functions, Aurelien Jarno, 2009/03/11
- Re: [Qemu-devel] [PATCH 0/9] tcg: reorganize bswap* functions, Paul Brook, 2009/03/12