diff options
| author | Yongbok Kim <yongbok.kim@imgtec.com> | 2015-10-29 15:18:38 +0000 |
|---|---|---|
| committer | Leon Alrae <leon.alrae@imgtec.com> | 2015-10-30 14:36:19 +0000 |
| commit | bb238210bb096534b68dab15a87c6ff0bef43672 (patch) | |
| tree | e05337cda587d151dd9f6e611e6284077c29621e | |
| parent | 35ac9e342e008e3d47ef18d33a6977fdb99de9cd (diff) | |
target-mips: add SIGRIE instruction
Add SIGRIE (Signal Reserved Instruction Exception) for both MIPS and
microMIPS.
The instruction allows to use the 16-bit code field for software use.
This instruction is introduced by and required as of Release 6.
Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
Reviewed-by: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
| -rw-r--r-- | target-mips/translate.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/target-mips/translate.c b/target-mips/translate.c index bacac2b4fb..56266471c1 100644 --- a/target-mips/translate.c +++ b/target-mips/translate.c @@ -323,6 +323,7 @@ enum { OPC_TLTIU = (0x0B << 16) | OPC_REGIMM, OPC_TEQI = (0x0C << 16) | OPC_REGIMM, OPC_TNEI = (0x0E << 16) | OPC_REGIMM, + OPC_SIGRIE = (0x17 << 16) | OPC_REGIMM, OPC_SYNCI = (0x1F << 16) | OPC_REGIMM, OPC_DAHI = (0x06 << 16) | OPC_REGIMM, @@ -12031,7 +12032,8 @@ enum { LSA = 0x0f, ALIGN = 0x1f, EXT = 0x2c, - POOL32AXF = 0x3c + POOL32AXF = 0x3c, + SIGRIE = 0x3f }; /* POOL32AXF encoding of minor opcode field extension */ @@ -13655,6 +13657,10 @@ static void decode_micromips32_opc(CPUMIPSState *env, DisasContext *ctx) case BREAK32: generate_exception_end(ctx, EXCP_BREAK); break; + case SIGRIE: + check_insn(ctx, ISA_MIPS32R6); + generate_exception_end(ctx, EXCP_RI); + break; default: pool32a_invalid: MIPS_INVAL("pool32a"); @@ -18973,6 +18979,10 @@ static void decode_opc(CPUMIPSState *env, DisasContext *ctx) check_insn_opc_removed(ctx, ISA_MIPS32R6); gen_trap(ctx, op1, rs, -1, imm); break; + case OPC_SIGRIE: + check_insn(ctx, ISA_MIPS32R6); + generate_exception_end(ctx, EXCP_RI); + break; case OPC_SYNCI: check_insn(ctx, ISA_MIPS32R2); /* Break the TB to be able to sync copied instructions |