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[Qemu-devel] [PATCH v6 24/77] target/mips: Add emulation of nanoMIPS 16-
From: |
Stefan Markovic |
Subject: |
[Qemu-devel] [PATCH v6 24/77] target/mips: Add emulation of nanoMIPS 16-bit logic instructions |
Date: |
Thu, 2 Aug 2018 16:16:11 +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 c78f3a1..78d17b9 100644
--- a/target/mips/translate.c
+++ b/target/mips/translate.c
@@ -16520,6 +16520,27 @@ 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;
@@ -16596,6 +16617,7 @@ 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);
@@ -16670,6 +16692,12 @@ 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:
switch (extract32(ctx->opcode, 2, 2)) {
--
1.9.1
- [Qemu-devel] [PATCH v6 17/77] target/mips: Add placeholder and invocation of decode_nanomips_opc(), (continued)
- [Qemu-devel] [PATCH v6 17/77] target/mips: Add placeholder and invocation of decode_nanomips_opc(), Stefan Markovic, 2018/08/02
- [Qemu-devel] [PATCH v6 18/77] target/mips: Add nanoMIPS decoding and extraction utilities, Stefan Markovic, 2018/08/02
- [Qemu-devel] [PATCH v6 19/77] target/mips: Add emulation of nanoMIPS 16-bit arithmetic instructions, Stefan Markovic, 2018/08/02
- [Qemu-devel] [PATCH v6 20/77] target/mips: Add emulation of nanoMIPS 16-bit branch instructions, Stefan Markovic, 2018/08/02
- [Qemu-devel] [PATCH v6 21/77] target/mips: Add emulation of nanoMIPS 16-bit shift instructions, Stefan Markovic, 2018/08/02
- [Qemu-devel] [PATCH v6 22/77] target/mips: Add emulation of nanoMIPS 16-bit misc instructions, Stefan Markovic, 2018/08/02
- [Qemu-devel] [PATCH v6 23/77] target/mips: Add emulation of nanoMIPS 16-bit load and store instructions, Stefan Markovic, 2018/08/02
- [Qemu-devel] [PATCH v6 24/77] target/mips: Add emulation of nanoMIPS 16-bit logic instructions,
Stefan Markovic <=
- [Qemu-devel] [PATCH v6 25/77] target/mips: Add emulation of nanoMIPS 16-bit save and restore instructions, Stefan Markovic, 2018/08/02
- [Qemu-devel] [PATCH v6 26/77] target/mips: Add emulation of some common nanoMIPS 32-bit instructions, Stefan Markovic, 2018/08/02
- [Qemu-devel] [PATCH v6 27/77] target/mips: Add emulation of nanoMIPS instructions MOVE.P and MOVE.PREV, Stefan Markovic, 2018/08/02
- [Qemu-devel] [PATCH v6 28/77] target/mips: Add emulation of nanoMIPS 48-bit instructions, Stefan Markovic, 2018/08/02
- [Qemu-devel] [PATCH v6 29/77] target/mips: Add emulation of nanoMIPS FP instructions, Stefan Markovic, 2018/08/02
- [Qemu-devel] [PATCH v6 30/77] target/mips: Add emulation of misc nanoMIPS instructions (pool32a0), Stefan Markovic, 2018/08/02
- [Qemu-devel] [PATCH v6 31/77] target/mips: Add emulation of misc nanoMIPS instructions (pool32axf), Stefan Markovic, 2018/08/02
- [Qemu-devel] [PATCH v6 32/77] target/mips: Add emulation of misc nanoMIPS instructions (p_lsx), Stefan Markovic, 2018/08/02
- [Qemu-devel] [PATCH v6 33/77] target/mips: Implement emulation of nanoMIPS ROTX instruction, Stefan Markovic, 2018/08/02
- [Qemu-devel] [PATCH v6 34/77] target/mips: Implement emulation of nanoMIPS EXTW instruction, Stefan Markovic, 2018/08/02