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ppc/translate: Implement lxvwsx opcode 

Implement the "Load VSX Vector Word & Splat Indexed" opcode, introduced
in Power ISA v3.0.

Buglink: https://bugs.launchpad.net/qemu/+bug/1793608
Signed-off-by: Giuseppe Musacchio <thatlemon@gmail.com>
Message-Id: <d7d533e18c2bc10d924ee3e09907ff2b41fddb3a.1604912739.git.thatlemon@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
LemonBoy 2020-11-09 10:17:10 +01:00 committed by David Gibson
parent 23895cbd82
commit afae37d98a
2 changed files with 31 additions and 0 deletions
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30
target/ppc/translate/vsx-impl.c.inc
View File

@ -139,6 +139,36 @@ static void gen_lxvw4x(DisasContext *ctx)
tcg_temp_free_i64(xtl);
}
static void gen_lxvwsx(DisasContext *ctx)
{
TCGv EA;
TCGv_i32 data;
if (xT(ctx->opcode) < 32) {
if (unlikely(!ctx->vsx_enabled)) {
gen_exception(ctx, POWERPC_EXCP_VSXU);
return;
}
} else {
if (unlikely(!ctx->altivec_enabled)) {
gen_exception(ctx, POWERPC_EXCP_VPU);
return;
}
}
gen_set_access_type(ctx, ACCESS_INT);
EA = tcg_temp_new();
gen_addr_reg_index(ctx, EA);
data = tcg_temp_new_i32();
tcg_gen_qemu_ld_i32(data, EA, ctx->mem_idx, MO_TEUL);
tcg_gen_gvec_dup_i32(MO_UL, vsr_full_offset(xT(ctx->opcode)), 16, 16, data);
tcg_temp_free(EA);
tcg_temp_free_i32(data);
}
static void gen_bswap16x8(TCGv_i64 outh, TCGv_i64 outl,
TCGv_i64 inh, TCGv_i64 inl)
{

1
target/ppc/translate/vsx-ops.c.inc
View File

@ -5,6 +5,7 @@ GEN_HANDLER_E(lxsibzx, 0x1F, 0x0D, 0x18, 0, PPC_NONE, PPC2_ISA300),
GEN_HANDLER_E(lxsihzx, 0x1F, 0x0D, 0x19, 0, PPC_NONE, PPC2_ISA300),
GEN_HANDLER_E(lxsspx, 0x1F, 0x0C, 0x10, 0, PPC_NONE, PPC2_VSX207),
GEN_HANDLER_E(lxvd2x, 0x1F, 0x0C, 0x1A, 0, PPC_NONE, PPC2_VSX),
GEN_HANDLER_E(lxvwsx, 0x1F, 0x0C, 0x0B, 0, PPC_NONE, PPC2_ISA300),
GEN_HANDLER_E(lxvdsx, 0x1F, 0x0C, 0x0A, 0, PPC_NONE, PPC2_VSX),
GEN_HANDLER_E(lxvw4x, 0x1F, 0x0C, 0x18, 0, PPC_NONE, PPC2_VSX),
GEN_HANDLER_E(lxvh8x, 0x1F, 0x0C, 0x19, 0, PPC_NONE, PPC2_ISA300),