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target/ppc: Implement xvtlsbb instruction 

Signed-off-by: Víctor Colombo <victor.colombo@eldorado.org.br>
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20220225210936.1749575-39-matheus.ferst@eldorado.org.br>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Víctor Colombo 2022-03-02 06:51:38 +01:00 committed by Cédric Le Goater
parent 3bb1aed246
commit d518239b06
2 changed files with 47 additions and 0 deletions
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7
target/ppc/insn32.decode
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@ -155,6 +155,9 @@
&XX2 xt xb uim:uint8_t
@XX2 ...... ..... ... uim:2 ..... ......... .. &XX2 xt=%xx_xt xb=%xx_xb
&XX2_bf_xb bf xb
@XX2_bf_xb ...... bf:3 .. ..... ..... ......... . . &XX2_bf_xb xb=%xx_xb
&XX3 xt xa xb
@XX3 ...... ..... ..... ..... ........ ... &XX3 xt=%xx_xt xa=%xx_xa xb=%xx_xb
@ -666,6 +669,10 @@ XSMINJDP 111100 ..... ..... ..... 10011000 ... @XX3
XSCVQPDP 111111 ..... 10100 ..... 1101000100 . @X_tb_rc
## VSX Vector Test Least-Significant Bit by Byte Instruction
XVTLSBB 111100 ... -- 00010 ..... 111011011 . - @XX2_bf_xb
### rfebb
&XL_s s:uint8_t
@XL_s ......-------------- s:1 .......... - &XL_s

40
target/ppc/translate/vsx-impl.c.inc
View File

@ -1704,6 +1704,46 @@ static bool trans_LXVKQ(DisasContext *ctx, arg_X_uim5 *a)
return true;
}
static bool trans_XVTLSBB(DisasContext *ctx, arg_XX2_bf_xb *a)
{
TCGv_i64 xb, t0, t1, all_true, all_false, mask, zero;
REQUIRE_INSNS_FLAGS2(ctx, ISA310);
REQUIRE_VSX(ctx);
xb = tcg_temp_new_i64();
t0 = tcg_temp_new_i64();
t1 = tcg_temp_new_i64();
all_true = tcg_temp_new_i64();
all_false = tcg_temp_new_i64();
mask = tcg_constant_i64(dup_const(MO_8, 1));
zero = tcg_constant_i64(0);
get_cpu_vsr(xb, a->xb, true);
tcg_gen_and_i64(t0, mask, xb);
get_cpu_vsr(xb, a->xb, false);
tcg_gen_and_i64(t1, mask, xb);
tcg_gen_or_i64(all_false, t0, t1);
tcg_gen_and_i64(all_true, t0, t1);
tcg_gen_setcond_i64(TCG_COND_EQ, all_false, all_false, zero);
tcg_gen_shli_i64(all_false, all_false, 1);
tcg_gen_setcond_i64(TCG_COND_EQ, all_true, all_true, mask);
tcg_gen_shli_i64(all_true, all_true, 3);
tcg_gen_or_i64(t0, all_false, all_true);
tcg_gen_extrl_i64_i32(cpu_crf[a->bf], t0);
tcg_temp_free_i64(xb);
tcg_temp_free_i64(t0);
tcg_temp_free_i64(t1);
tcg_temp_free_i64(all_true);
tcg_temp_free_i64(all_false);
return true;
}
static void gen_xxsldwi(DisasContext *ctx)
{
TCGv_i64 xth, xtl;