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target/ppc: implement plxssp/pstxssp

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Implement instructions plxssp/pstxssp and port lxssp/stxssp to
decode tree.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Leandro Lupori <leandro.lupori@eldorado.org.br>
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20220225210936.1749575-49-matheus.ferst@eldorado.org.br>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Leandro Lupori 2022-03-02 06:51:38 +01:00 • committed by Cédric Le Goater
parent 7eec8cbb1b
commit 20e2d04e66
4 changed files with 62 additions and 68 deletions
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29
target/ppc/translate.c
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@ -6668,39 +6668,24 @@ static bool resolve_PLS_D(DisasContext *ctx, arg_D *d, arg_PLS_D *a)
#include "translate/branch-impl.c.inc"
/* Handles lfdp, lxssp */
/* Handles lfdp */
static void gen_dform39(DisasContext *ctx)
{
switch (ctx->opcode & 0x3) {
case 0: /* lfdp */
if ((ctx->opcode & 0x3) == 0) {
if (ctx->insns_flags2 & PPC2_ISA205) {
return gen_lfdp(ctx);
}
break;
case 3: /* lxssp */
if (ctx->insns_flags2 & PPC2_ISA300) {
return gen_lxssp(ctx);
}
break;
}
return gen_invalid(ctx);
}
/* handles stfdp, lxv, stxssp lxvx */
/* Handles stfdp */
static void gen_dform3D(DisasContext *ctx)
{
if ((ctx->opcode & 3) != 1) { /* DS-FORM */
switch (ctx->opcode & 0x3) {
case 0: /* stfdp */
if (ctx->insns_flags2 & PPC2_ISA205) {
return gen_stfdp(ctx);
}
break;
case 3: /* stxssp */
if (ctx->insns_flags2 & PPC2_ISA300) {
return gen_stxssp(ctx);
}
break;
if ((ctx->opcode & 3) == 0) { /* DS-FORM */
/* stfdp */
if (ctx->insns_flags2 & PPC2_ISA205) {
return gen_stfdp(ctx);
}
}
return gen_invalid(ctx);