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[Qemu-devel] [PATCH v3 08/40] target/mips: Add emulation of nanoMIPS 16-
From: |
Stefan Markovic |
Subject: |
[Qemu-devel] [PATCH v3 08/40] target/mips: Add emulation of nanoMIPS 16-bit logic instructions |
Date: |
Thu, 19 Jul 2018 14:54:40 +0200 |
From: Yongbok Kim <address@hidden>
Add emulation of NOT16, AND16, XOR16, OR16 instructions.
Reviewed-by: Richard Henderson <address@hidden>
Signed-off-by: Yongbok Kim <address@hidden>
Signed-off-by: Aleksandar Markovic <address@hidden>
Signed-off-by: Stefan Markovic <address@hidden>
---
target/mips/translate.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/target/mips/translate.c b/target/mips/translate.c
index 1a839be..12505a8 100644
--- a/target/mips/translate.c
+++ b/target/mips/translate.c
@@ -16508,6 +16508,27 @@ static int decode_gpr_gpr4_zero(int r)
#define NANOMIPS_EXTRACT_RS5(op) (op & 0x1f)
+static void gen_pool16c_nanomips_insn(DisasContext *ctx)
+{
+ int rt = decode_gpr_gpr3(NANOMIPS_EXTRACT_RD(ctx->opcode));
+ int rs = decode_gpr_gpr3(NANOMIPS_EXTRACT_RS(ctx->opcode));
+
+ switch ((ctx->opcode >> 2) & 0x3) {
+ case NM_NOT16:
+ gen_logic(ctx, OPC_NOR, rt, rs, 0);
+ break;
+ case NM_AND16:
+ gen_logic(ctx, OPC_AND, rt, rt, rs);
+ break;
+ case NM_XOR16:
+ gen_logic(ctx, OPC_XOR, rt, rt, rs);
+ break;
+ case NM_OR16:
+ gen_logic(ctx, OPC_OR, rt, rt, rs);
+ break;
+ }
+}
+
static int decode_nanomips_opc(CPUMIPSState *env, DisasContext *ctx)
{
uint32_t op;
@@ -16578,6 +16599,7 @@ static int decode_nanomips_opc(CPUMIPSState *env,
DisasContext *ctx)
case NM_P16C:
switch (ctx->opcode & 1) {
case NM_POOL16C_0:
+ gen_pool16c_nanomips_insn(ctx);
break;
case NM_LWXS16:
gen_ldxs(ctx, rt, rs, rd);
--
2.7.4
- Re: [Qemu-devel] [PATCH v3 30/40] target/mips: Adjust set_pc() for nanoMIPS, (continued)
- [Qemu-devel] [PATCH v3 16/40] target/mips: Implement emulation of nanoMIPS ROTX instruction, Stefan Markovic, 2018/07/19
- [Qemu-devel] [PATCH v3 13/40] target/mips: Add emulation of misc nanoMIPS instructions (pool32a0), Stefan Markovic, 2018/07/19
- [Qemu-devel] [PATCH v3 05/40] target/mips: Add nanoMIPS decoding and extraction utilities, Stefan Markovic, 2018/07/19
- [Qemu-devel] [PATCH v3 22/40] target/mips: Add handling of branch delay slots for nanoMIPS, Stefan Markovic, 2018/07/19
- [Qemu-devel] [PATCH v3 08/40] target/mips: Add emulation of nanoMIPS 16-bit logic instructions,
Stefan Markovic <=
- [Qemu-devel] [PATCH v3 04/40] target/mips: Add decode_nanomips_opc() function, Stefan Markovic, 2018/07/19
- [Qemu-devel] [PATCH v3 09/40] target/mips: Add emulation of nanoMIPS 16-bit save and restore instructions, Stefan Markovic, 2018/07/19
- [Qemu-devel] [PATCH v3 21/40] target/mips: Implement DSP ASE support for nanoMIPS, Stefan Markovic, 2018/07/19
- [Qemu-devel] [PATCH v3 28/40] target/mips: Adjust exception_resume_pc() for nanoMIPS, Stefan Markovic, 2018/07/19