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Document the shift values

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4243 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
blueswir1 2008-04-23 17:12:35 +00:00
parent a23a663b65
commit 4b8b8b76d4
2 changed files with 18 additions and 12 deletions
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12
target-sparc/translate.c
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@ -266,28 +266,28 @@ static inline void gen_goto_tb(DisasContext *s, int tb_num,
static inline void gen_mov_reg_N(TCGv reg, TCGv src)
{
tcg_gen_extu_i32_tl(reg, src);
tcg_gen_shri_tl(reg, reg, 23);
tcg_gen_shri_tl(reg, reg, PSR_NEG_SHIFT);
tcg_gen_andi_tl(reg, reg, 0x1);
}
static inline void gen_mov_reg_Z(TCGv reg, TCGv src)
{
tcg_gen_extu_i32_tl(reg, src);
tcg_gen_shri_tl(reg, reg, 22);
tcg_gen_shri_tl(reg, reg, PSR_ZERO_SHIFT);
tcg_gen_andi_tl(reg, reg, 0x1);
}
static inline void gen_mov_reg_V(TCGv reg, TCGv src)
{
tcg_gen_extu_i32_tl(reg, src);
tcg_gen_shri_tl(reg, reg, 21);
tcg_gen_shri_tl(reg, reg, PSR_OVF_SHIFT);
tcg_gen_andi_tl(reg, reg, 0x1);
}
static inline void gen_mov_reg_C(TCGv reg, TCGv src)
{
tcg_gen_extu_i32_tl(reg, src);
tcg_gen_shri_tl(reg, reg, 20);
tcg_gen_shri_tl(reg, reg, PSR_CARRY_SHIFT);
tcg_gen_andi_tl(reg, reg, 0x1);
}
@ -965,7 +965,7 @@ static inline void gen_mov_reg_FCC0(TCGv reg, TCGv src,
unsigned int fcc_offset)
{
tcg_gen_extu_i32_tl(reg, src);
tcg_gen_shri_tl(reg, reg, 10 + fcc_offset);
tcg_gen_shri_tl(reg, reg, FSR_FCC0_SHIFT + fcc_offset);
tcg_gen_andi_tl(reg, reg, 0x1);
}
@ -973,7 +973,7 @@ static inline void gen_mov_reg_FCC1(TCGv reg, TCGv src,
unsigned int fcc_offset)
{
tcg_gen_extu_i32_tl(reg, src);
tcg_gen_shri_tl(reg, reg, 11 + fcc_offset);
tcg_gen_shri_tl(reg, reg, FSR_FCC1_SHIFT + fcc_offset);
tcg_gen_andi_tl(reg, reg, 0x1);
}