OpenE2K/qemu-e2k
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target: e2k: Add negated predicate ct condition.

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This commit is contained in:
Denis Drakhnia 2020-11-11 23:16:02 +02:00
parent e83d027c6f
commit c1a6627904
1 changed files with 16 additions and 15 deletions
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31
target/e2k/translate/control.c
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@ -313,7 +313,8 @@ static void gen_jmp(DisasContext *dc)
unsigned int ctcond = GET_FIELD(dc->bundle.ss, 0, 8);
unsigned int cond_type = (ctcond & 0x1e0) >> 5;
unsigned int psrc = (ctcond & 0x01f);
// bool not_preg = cond_type == 3 || cond_type == 7 || cond_type == 0xe;
/* TODO: check CPU behavior if present ibranch and ctpr is not zero */
if (cond_type == 1) {
dc->base.is_jmp = STATIC_JUMP;
@ -321,23 +322,23 @@ static void gen_jmp(DisasContext *dc)
return;
}
if (cond_type == 2) {
dc->base.is_jmp = DYNAMIC_JUMP;
dc->base.is_jmp = DYNAMIC_JUMP;
if (cond_type == 2 || cond_type == 6 || cond_type == 0xf) {
/* if pred is true */
tcg_gen_mov_i64(dc->jmp.cond, e2k_get_preg(dc, psrc));
return;
} else if (cond_type == 3 || cond_type == 7 || cond_type == 0xe) {
/* if pred is false */
TCGv_i64 one = tcg_const_i64(1);
TCGv_i64 zero = tcg_const_i64(0);
tcg_gen_movcond_i64(TCG_COND_EQ, dc->jmp.cond,
e2k_get_preg(dc, psrc), zero,
one, zero);
tcg_temp_free_i64(zero);
tcg_temp_free_i64(one);
}
/* These types of conditions involve a (probably negated) predicate
register. */
if (cond_type == 2
|| cond_type == 3
|| cond_type == 6
|| cond_type == 7
|| cond_type == 0xe
|| cond_type == 0xf)
{
// preg
}
/* TODO: other kinds of conditions */
if (cond_type == 4
|| cond_type == 6