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microblaze: Reorganize for future patches 

No functional changes.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
This commit is contained in:
Edgar E. Iglesias 2011-01-22 11:57:19 +01:00
parent 5823947f9f
commit ee8b246f82
1 changed files with 17 additions and 19 deletions
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36
target-microblaze/translate.c
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@ -153,6 +153,23 @@ static void gen_goto_tb(DisasContext *dc, int n, target_ulong dest)
} }
} }
static void read_carry(DisasContext *dc, TCGv d)
{
tcg_gen_shri_tl(d, cpu_SR[SR_MSR], 31);
}
static void write_carry(DisasContext *dc, TCGv v)
{
TCGv t0 = tcg_temp_new();
tcg_gen_shli_tl(t0, v, 31);
tcg_gen_sari_tl(t0, t0, 31);
tcg_gen_andi_tl(t0, t0, (MSR_C | MSR_CC));
tcg_gen_andi_tl(cpu_SR[SR_MSR], cpu_SR[SR_MSR],
~(MSR_C | MSR_CC));
tcg_gen_or_tl(cpu_SR[SR_MSR], cpu_SR[SR_MSR], t0);
tcg_temp_free(t0);
}
/* True if ALU operand b is a small immediate that may deserve /* True if ALU operand b is a small immediate that may deserve
faster treatment. */ faster treatment. */
static inline int dec_alu_op_b_is_small_imm(DisasContext *dc) static inline int dec_alu_op_b_is_small_imm(DisasContext *dc)
@ -337,25 +354,6 @@ static void dec_xor(DisasContext *dc)
tcg_gen_xor_tl(cpu_R[dc->rd], cpu_R[dc->ra], *(dec_alu_op_b(dc))); tcg_gen_xor_tl(cpu_R[dc->rd], cpu_R[dc->ra], *(dec_alu_op_b(dc)));
} }
static void read_carry(DisasContext *dc, TCGv d)
{
tcg_gen_shri_tl(d, cpu_SR[SR_MSR], 31);
}
static void write_carry(DisasContext *dc, TCGv v)
{
TCGv t0 = tcg_temp_new();
tcg_gen_shli_tl(t0, v, 31);
tcg_gen_sari_tl(t0, t0, 31);
tcg_gen_mov_tl(env_debug, t0);
tcg_gen_andi_tl(t0, t0, (MSR_C | MSR_CC));
tcg_gen_andi_tl(cpu_SR[SR_MSR], cpu_SR[SR_MSR],
~(MSR_C | MSR_CC));
tcg_gen_or_tl(cpu_SR[SR_MSR], cpu_SR[SR_MSR], t0);
tcg_temp_free(t0);
}
static inline void msr_read(DisasContext *dc, TCGv d) static inline void msr_read(DisasContext *dc, TCGv d)
{ {
tcg_gen_mov_tl(d, cpu_SR[SR_MSR]); tcg_gen_mov_tl(d, cpu_SR[SR_MSR]);