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target-i386: Define MMREG_UNION macro

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This will simplify the definitions of ZMMReg and MMXReg.

Backports commit 31d414d649b289ff9d1e048c41554298d1094fd3 from qemu
This commit is contained in:
Eduardo Habkost 2018-02-18 23:55:26 -05:00 committed by Lioncash
parent 831fdde7fa
commit 0b1f839189
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GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 11 additions and 16 deletions
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27
qemu/target-i386/cpu.h
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@ -722,23 +722,18 @@ 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;