[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v2 1/2] target-i386: Define MMREG_UNION macro
From: |
Eduardo Habkost |
Subject: |
[Qemu-devel] [PATCH v2 1/2] target-i386: Define MMREG_UNION macro |
Date: |
Wed, 2 Dec 2015 13:51:53 -0200 |
This will simplify the definitions of ZMMReg and MMXReg.
Signed-off-by: Eduardo Habkost <address@hidden>
---
Changes v1 -> v2:
* Change MMREG_UNION argument to be number of bits
---
target-i386/cpu.h | 27 +++++++++++----------------
1 file changed, 11 insertions(+), 16 deletions(-)
diff --git a/target-i386/cpu.h b/target-i386/cpu.h
index e8e99e2..ab3ae5b 100644
--- a/target-i386/cpu.h
+++ b/target-i386/cpu.h
@@ -725,23 +725,18 @@ typedef struct SegmentCache {
uint32_t flags;
} SegmentCache;
-typedef union {
- uint8_t _b[64];
- uint16_t _w[32];
- uint32_t _l[16];
- uint64_t _q[8];
- float32 _s[16];
- float64 _d[8];
-} ZMMReg;
+#define MMREG_UNION(bits) \
+ union { \
+ uint8_t _b[(bits)/8]; \
+ uint16_t _w[(bits)/16]; \
+ uint32_t _l[(bits)/32]; \
+ uint64_t _q[(bits)/64]; \
+ float32 _s[(bits)/32]; \
+ float64 _d[(bits)/64]; \
+ }
-typedef union {
- uint8_t _b[8];
- uint16_t _w[4];
- uint32_t _l[2];
- uint64_t _q[1];
- float32 _s[2];
- float64 _d[1];
-} MMXReg;
+typedef MMREG_UNION(512) ZMMReg;
+typedef MMREG_UNION(64) MMXReg;
typedef struct BNDReg {
uint64_t lb;
--
2.1.0