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[Qemu-devel] [PATCH v9 26/84] target/mips: Add emulation of nanoMIPS 16-
From: |
Aleksandar Markovic |
Subject: |
[Qemu-devel] [PATCH v9 26/84] target/mips: Add emulation of nanoMIPS 16-bit logic instructions |
Date: |
Thu, 16 Aug 2018 16:57:19 +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 | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/target/mips/translate.c b/target/mips/translate.c
index d59b632..372e6f2 100644
--- a/target/mips/translate.c
+++ b/target/mips/translate.c
@@ -16638,6 +16638,27 @@ static inline 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 (extract32(ctx->opcode, 2, 2)) {
+ 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;
@@ -16714,6 +16735,7 @@ 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);
@@ -16788,6 +16810,12 @@ static int decode_nanomips_opc(CPUMIPSState *env,
DisasContext *ctx)
}
break;
case NM_ANDI16:
+ {
+ uint32_t u = extract32(ctx->opcode, 0, 4);
+ u = (u == 12) ? 0xff :
+ (u == 13) ? 0xffff : u;
+ gen_logic_imm(ctx, OPC_ANDI, rt, rs, u);
+ }
break;
case NM_P16_LB:
offset = extract32(ctx->opcode, 0, 2);
--
2.7.4
- Re: [Qemu-devel] [PATCH v9 03/84] target/mips: Avoid case statements formulated by ranges - part 2, (continued)
- [Qemu-devel] [PATCH v9 15/84] qemu-doc: Amend MIPS-related items, Aleksandar Markovic, 2018/08/16
- [Qemu-devel] [PATCH v9 13/84] linux-user: Update MIPS syscall numbers up to kernel 4.18 headers, Aleksandar Markovic, 2018/08/16
- [Qemu-devel] [PATCH v9 35/84] target/mips: Implement emulation of nanoMIPS ROTX instruction, Aleksandar Markovic, 2018/08/16
- [Qemu-devel] [PATCH v9 40/84] target/mips: Fix pre-nanoMIPS MT ASE instructions availability control, Aleksandar Markovic, 2018/08/16
- [Qemu-devel] [PATCH v9 19/84] target/mips: Add placeholder and invocation of decode_nanomips_opc(), Aleksandar Markovic, 2018/08/16
- [Qemu-devel] [PATCH v9 25/84] target/mips: Add emulation of nanoMIPS 16-bit load and store instructions, Aleksandar Markovic, 2018/08/16
- [Qemu-devel] [PATCH v9 20/84] target/mips: Add nanoMIPS decoding and extraction utilities, Aleksandar Markovic, 2018/08/16
- [Qemu-devel] [PATCH v9 24/84] target/mips: Add emulation of nanoMIPS 16-bit misc instructions, Aleksandar Markovic, 2018/08/16
- [Qemu-devel] [PATCH v9 26/84] target/mips: Add emulation of nanoMIPS 16-bit logic instructions,
Aleksandar Markovic <=
- [Qemu-devel] [PATCH v9 11/84] elf: Remove duplicate preprocessor constant definition, Aleksandar Markovic, 2018/08/16
- [Qemu-devel] [PATCH v9 23/84] target/mips: Add emulation of nanoMIPS 16-bit shift instructions, Aleksandar Markovic, 2018/08/16
- [Qemu-devel] [PATCH v9 32/84] target/mips: Add emulation of misc nanoMIPS instructions (pool32a0), Aleksandar Markovic, 2018/08/16
- [Qemu-devel] [PATCH v9 31/84] target/mips: Add emulation of nanoMIPS FP instructions, Aleksandar Markovic, 2018/08/16
- [Qemu-devel] [PATCH v9 51/84] target/mips: Adjust exception_resume_pc() for nanoMIPS, Aleksandar Markovic, 2018/08/16
- [Qemu-devel] [PATCH v9 30/84] target/mips: Add emulation of nanoMIPS 48-bit instructions, Aleksandar Markovic, 2018/08/16
- [Qemu-devel] [PATCH v9 27/84] target/mips: Add emulation of nanoMIPS 16-bit save and restore instructions, Aleksandar Markovic, 2018/08/16
- [Qemu-devel] [PATCH v9 18/84] target/mips: Add nanoMIPS DSP ASE opcodes, Aleksandar Markovic, 2018/08/16
- [Qemu-devel] [PATCH v9 34/84] target/mips: Add emulation of misc nanoMIPS instructions (p_lsx), Aleksandar Markovic, 2018/08/16