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[Qemu-devel] [PATCH v8 50/87] target/mips: Add emulation of DSP ASE for
From: |
Aleksandar Markovic |
Subject: |
[Qemu-devel] [PATCH v8 50/87] target/mips: Add emulation of DSP ASE for nanoMIPS - part 6 |
Date: |
Mon, 13 Aug 2018 19:53:15 +0200 |
From: Stefan Markovic <address@hidden>
Add emulation of DSP ASE instructions for nanoMIPS - part 6.
Reviewed-by: Aleksandar Markovic <address@hidden>
Signed-off-by: Aleksandar Markovic <address@hidden>
Signed-off-by: Stefan Markovic <address@hidden>
---
target/mips/translate.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 62 insertions(+)
diff --git a/target/mips/translate.c b/target/mips/translate.c
index 00d1164..3282fca 100644
--- a/target/mips/translate.c
+++ b/target/mips/translate.c
@@ -17777,6 +17777,64 @@ static void gen_pool32axf_4_nanomips_insn(DisasContext
*ctx, uint32_t opc,
tcg_temp_free(t0);
}
+static void gen_pool32axf_7_nanomips_insn(DisasContext *ctx, uint32_t opc,
+ int rt, int rs, int rd)
+{
+ TCGv t0;
+ TCGv rs_t;
+
+ if (rt == 0) {
+ /* Treat as NOP. */
+ return;
+ }
+
+ t0 = tcg_temp_new();
+ rs_t = tcg_temp_new();
+
+ gen_load_gpr(rs_t, rs);
+
+ switch (opc) {
+ case NM_SHRA_R_QB:
+ check_dspr2(ctx);
+ tcg_gen_movi_tl(t0, rd >> 2);
+ switch (extract32(ctx->opcode, 12, 1)) {
+ case 0:
+ /* NM_SHRA_QB */
+ gen_helper_shra_qb(cpu_gpr[rt], t0, rs_t);
+ break;
+ case 1:
+ /* NM_SHRA_R_QB */
+ gen_helper_shra_r_qb(cpu_gpr[rt], t0, rs_t);
+ break;
+ }
+ break;
+ case NM_SHRL_PH:
+ check_dspr2(ctx);
+ tcg_gen_movi_tl(t0, rd >> 1);
+ gen_helper_shrl_ph(cpu_gpr[rt], t0, rs_t);
+ break;
+ case NM_REPL_QB:
+ check_dsp(ctx);
+ {
+ int16_t imm;
+ target_long result;
+ imm = extract32(ctx->opcode, 13, 8);
+ result = (uint32_t)imm << 24 |
+ (uint32_t)imm << 16 |
+ (uint32_t)imm << 8 |
+ (uint32_t)imm;
+ result = (int32_t)result;
+ tcg_gen_movi_tl(cpu_gpr[rt], result);
+ }
+ break;
+ default:
+ generate_exception_end(ctx, EXCP_RI);
+ break;
+ }
+ tcg_temp_free(t0);
+ tcg_temp_free(rs_t);
+}
+
static void gen_pool32axf_nanomips_insn(CPUMIPSState *env, DisasContext *ctx)
{
@@ -17872,6 +17930,10 @@ static void gen_pool32axf_nanomips_insn(CPUMIPSState
*env, DisasContext *ctx)
}
break;
case NM_POOL32AXF_7:
+ {
+ int32_t op1 = extract32(ctx->opcode, 9, 3);
+ gen_pool32axf_7_nanomips_insn(ctx, op1, rt, rs, rd);
+ }
break;
default:
generate_exception_end(ctx, EXCP_RI);
--
2.7.4
- [Qemu-devel] [PATCH v8 57/87] target/mips: Fix ERET/ERETNC behavior related to ADEL exception, (continued)
- [Qemu-devel] [PATCH v8 57/87] target/mips: Fix ERET/ERETNC behavior related to ADEL exception, Aleksandar Markovic, 2018/08/13
- [Qemu-devel] [PATCH v8 17/87] linux-user: Update MIPS syscall numbers up to kernel 4.18 headers, Aleksandar Markovic, 2018/08/13
- [Qemu-devel] [PATCH v8 23/87] target/mips: Add placeholder and invocation of decode_nanomips_opc(), Aleksandar Markovic, 2018/08/13
- [Qemu-devel] [PATCH v8 21/87] target/mips: Add nanoMIPS base instruction set opcodes, Aleksandar Markovic, 2018/08/13
- [Qemu-devel] [PATCH v8 54/87] target/mips: Adjust exception_resume_pc() for nanoMIPS, Aleksandar Markovic, 2018/08/13
- [Qemu-devel] [PATCH v8 56/87] target/mips: Adjust set_pc() for nanoMIPS, Aleksandar Markovic, 2018/08/13
- [Qemu-devel] [PATCH v8 39/87] target/mips: Implement emulation of nanoMIPS ROTX instruction, Aleksandar Markovic, 2018/08/13
- [Qemu-devel] [PATCH v8 52/87] target/mips: Add handling of branch delay slots for nanoMIPS, Aleksandar Markovic, 2018/08/13
- [Qemu-devel] [PATCH v8 50/87] target/mips: Add emulation of DSP ASE for nanoMIPS - part 6,
Aleksandar Markovic <=
- [Qemu-devel] [PATCH v8 49/87] target/mips: Add emulation of DSP ASE for nanoMIPS - part 5, Aleksandar Markovic, 2018/08/13
- [Qemu-devel] [PATCH v8 64/87] mips_malta: Fix semihosting argument passing for nanoMIPS bare metal, Aleksandar Markovic, 2018/08/13
- [Qemu-devel] [PATCH v8 68/87] linux-user: Add target_signal.h header for nanoMIPS, Aleksandar Markovic, 2018/08/13
- [Qemu-devel] [PATCH v8 72/87] linux-user: Add sockbits.h header for nanoMIPS, Aleksandar Markovic, 2018/08/13
- [Qemu-devel] [PATCH v8 69/87] linux-user: Add termbits.h header for nanoMIPS, Aleksandar Markovic, 2018/08/13
- [Qemu-devel] [PATCH v8 62/87] mips_malta: Add basic nanoMIPS boot code for Malta board, Aleksandar Markovic, 2018/08/13
- [Qemu-devel] [PATCH v8 65/87] target/mips: Add definition of nanoMIPS I7200 CPU, Aleksandar Markovic, 2018/08/13
- [Qemu-devel] [PATCH v8 42/87] target/mips: Implement emulation of nanoMIPS LLWP/SCWP pair, Aleksandar Markovic, 2018/08/13