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[PATCH 1/2] ppc/translate: Implement lxvwsx opcode
From: |
LemonBoy |
Subject: |
[PATCH 1/2] ppc/translate: Implement lxvwsx opcode |
Date: |
Mon, 9 Nov 2020 10:17:10 +0100 |
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>
---
target/ppc/translate/vsx-impl.c.inc | 30 +++++++++++++++++++++++++++++
target/ppc/translate/vsx-ops.c.inc | 1 +
2 files changed, 31 insertions(+)
diff --git a/target/ppc/translate/vsx-impl.c.inc
b/target/ppc/translate/vsx-impl.c.inc
index b518de46db..075f063e98 100644
--- a/target/ppc/translate/vsx-impl.c.inc
+++ b/target/ppc/translate/vsx-impl.c.inc
@@ -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)
{
diff --git a/target/ppc/translate/vsx-ops.c.inc
b/target/ppc/translate/vsx-ops.c.inc
index 7fd3942b84..1d41beef26 100644
--- a/target/ppc/translate/vsx-ops.c.inc
+++ b/target/ppc/translate/vsx-ops.c.inc
@@ -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),
--
2.27.0
- [PATCH 1/2] ppc/translate: Implement lxvwsx opcode,
LemonBoy <=