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s390x/tcg: Clarify terminology in vec_reg_offset() 

We will use s390x speak "Element Size" (es) for MO_8 == 0, MO_16 == 1
... Simple rename of variables.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20190225200318.16102-4-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
master
David Hildenbrand 2019-02-25 21:03:14 +01:00 committed by Cornelia Huck
parent 076081ec8c
commit ffdd8ebb79
1 changed files with 6 additions and 5 deletions
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11
target/s390x/translate.c
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@ -145,10 +145,11 @@ void s390x_translate_init(void)
}
}
static inline int vec_reg_offset(uint8_t reg, uint8_t enr, TCGMemOp size)
static inline int vec_reg_offset(uint8_t reg, uint8_t enr, TCGMemOp es)
{
const uint8_t es = 1 << size;
int offs = enr * es;
/* Convert element size (es) - e.g. MO_8 - to bytes */
const uint8_t bytes = 1 << es;
int offs = enr * bytes;
g_assert(reg < 32);
/*
@ -173,9 +174,9 @@ static inline int vec_reg_offset(uint8_t reg, uint8_t enr, TCGMemOp size)
* the two 8 byte elements have to be loaded separately. Let's force all
* 16 byte operations to handle it in a special way.
*/
g_assert(size <= MO_64);
g_assert(es <= MO_64);
#ifndef HOST_WORDS_BIGENDIAN
offs ^= (8 - es);
offs ^= (8 - bytes);
#endif
return offs + offsetof(CPUS390XState, vregs[reg][0].d);
}