#define OP_SH_CODE20 6
#define OP_MASK_SHAMT 0x1f
#define OP_SH_SHAMT 6
+#define OP_MASK_EXTLSB OP_MASK_SHAMT
+#define OP_SH_EXTLSB OP_SH_SHAMT
+#define OP_MASK_STYPE OP_MASK_SHAMT
+#define OP_SH_STYPE OP_SH_SHAMT
#define OP_MASK_FD 0x1f
#define OP_SH_FD 6
#define OP_MASK_TARGET 0x3ffffff
#define OP_SH_MTACC_D 13
#define OP_MASK_MTACC_D 0x3
+/* MIPS MCU ASE */
+#define OP_MASK_3BITPOS 0x7
+#define OP_SH_3BITPOS 12
+#define OP_MASK_OFFSET12 0xfff
+#define OP_SH_OFFSET12 0
+
#define OP_OP_COP0 0x10
#define OP_OP_COP1 0x11
#define OP_OP_COP2 0x12
#define OP_SH_FZ 0
#define OP_MASK_FZ 0x1f
+/* Every MICROMIPSOP_X definition requires a corresponding OP_X
+ definition, and vice versa. This simplifies various parts
+ of the operand handling in GAS. The fields below only exist
+ in the microMIPS encoding, so define each one to have an empty
+ range. */
+#define OP_MASK_CODE10 0
+#define OP_SH_CODE10 0
+#define OP_MASK_TRAP 0
+#define OP_SH_TRAP 0
+#define OP_MASK_OFFSET10 0
+#define OP_SH_OFFSET10 0
+#define OP_MASK_RS3 0
+#define OP_SH_RS3 0
+#define OP_MASK_MB 0
+#define OP_SH_MB 0
+#define OP_MASK_MC 0
+#define OP_SH_MC 0
+#define OP_MASK_MD 0
+#define OP_SH_MD 0
+#define OP_MASK_ME 0
+#define OP_SH_ME 0
+#define OP_MASK_MF 0
+#define OP_SH_MF 0
+#define OP_MASK_MG 0
+#define OP_SH_MG 0
+#define OP_MASK_MH 0
+#define OP_SH_MH 0
+#define OP_MASK_MI 0
+#define OP_SH_MI 0
+#define OP_MASK_MJ 0
+#define OP_SH_MJ 0
+#define OP_MASK_ML 0
+#define OP_SH_ML 0
+#define OP_MASK_MM 0
+#define OP_SH_MM 0
+#define OP_MASK_MN 0
+#define OP_SH_MN 0
+#define OP_MASK_MP 0
+#define OP_SH_MP 0
+#define OP_MASK_MQ 0
+#define OP_SH_MQ 0
+#define OP_MASK_IMMA 0
+#define OP_SH_IMMA 0
+#define OP_MASK_IMMB 0
+#define OP_SH_IMMB 0
+#define OP_MASK_IMMC 0
+#define OP_SH_IMMC 0
+#define OP_MASK_IMMF 0
+#define OP_SH_IMMF 0
+#define OP_MASK_IMMG 0
+#define OP_SH_IMMG 0
+#define OP_MASK_IMMH 0
+#define OP_SH_IMMH 0
+#define OP_MASK_IMMI 0
+#define OP_SH_IMMI 0
+#define OP_MASK_IMMJ 0
+#define OP_SH_IMMJ 0
+#define OP_MASK_IMML 0
+#define OP_SH_IMML 0
+#define OP_MASK_IMMM 0
+#define OP_SH_IMMM 0
+#define OP_MASK_IMMN 0
+#define OP_SH_IMMN 0
+#define OP_MASK_IMMO 0
+#define OP_SH_IMMO 0
+#define OP_MASK_IMMP 0
+#define OP_SH_IMMP 0
+#define OP_MASK_IMMQ 0
+#define OP_SH_IMMQ 0
+#define OP_MASK_IMMU 0
+#define OP_SH_IMMU 0
+#define OP_MASK_IMMW 0
+#define OP_SH_IMMW 0
+#define OP_MASK_IMMX 0
+#define OP_SH_IMMX 0
+#define OP_MASK_IMMY 0
+#define OP_SH_IMMY 0
+
/* This structure holds information for a particular instruction. */
struct mips_opcode
"z" must be zero register
"K" 5 bit Hardware Register (rdhwr instruction) (OP_*_RD)
"+A" 5 bit ins/ext/dins/dext/dinsm/dextm position, which becomes
- LSB (OP_*_SHAMT).
+ LSB (OP_*_SHAMT; OP_*_EXTLSB or OP_*_STYPE may be used for
+ microMIPS compatibility).
Enforces: 0 <= pos < 32.
"+B" 5 bit ins/dins size, which becomes MSB (OP_*_INSMSB).
Requires that "+A" or "+E" occur first to set position.
"+t" 5 bit coprocessor 0 destination register (OP_*_RT)
"+T" 5 bit coprocessor 0 destination register (OP_*_RT) - disassembly only
+ MCU ASE usage:
+ "~" 12 bit offset (OP_*_OFFSET12)
+ "\" 3 bit position for aset and aclr (OP_*_3BITPOS)
+
UDI immediates:
"+1" UDI immediate bits 6-10
"+2" UDI immediate bits 6-15
Characters used so far, for quick reference when adding more:
"1234567890"
- "%[]<>(),+:'@!$*&"
+ "%[]<>(),+:'@!$*&\~"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"abcdefghijklopqrstuvwxz"
#define INSN_WRITE_HI 0x01000000
/* Modifies the LO register. */
#define INSN_WRITE_LO 0x02000000
-/* Takes a trap (easier to keep out of delay slot). */
-#define INSN_TRAP 0x04000000
+/* Not to be placed in a branch delay slot, either architecturally
+ or for ease of handling (such as with instructions that take a trap). */
+#define INSN_NO_DELAY_SLOT 0x04000000
/* Instruction stores value into memory. */
#define INSN_STORE_MEMORY 0x08000000
/* Instruction uses single precision floating point. */
#define FP_D 0x20000000
/* Instruction is part of the tx39's integer multiply family. */
#define INSN_MULT 0x40000000
-/* Instruction synchronize shared memory. */
-#define INSN_SYNC 0x80000000
+/* Modifies the general purpose register in MICROMIPSOP_*_RS. */
+#define INSN_WRITE_GPR_S 0x80000000
/* Instruction is actually a macro. It should be ignored by the
disassembler, and requires special treatment by the assembler. */
#define INSN_MACRO 0xffffffff
#define INSN2_READ_GPR_D 0x00000200
+/* Instruction has a branch delay slot that requires a 16-bit instruction. */
+#define INSN2_BRANCH_DELAY_16BIT 0x00000400
+/* Instruction has a branch delay slot that requires a 32-bit instruction. */
+#define INSN2_BRANCH_DELAY_32BIT 0x00000800
+/* Reads the floating point register in MICROMIPSOP_*_FD. */
+#define INSN2_READ_FPR_D 0x00001000
+/* Modifies the general purpose register in MICROMIPSOP_*_MB. */
+#define INSN2_WRITE_GPR_MB 0x00002000
+/* Reads the general purpose register in MICROMIPSOP_*_MC. */
+#define INSN2_READ_GPR_MC 0x00004000
+/* Reads/writes the general purpose register in MICROMIPSOP_*_MD. */
+#define INSN2_MOD_GPR_MD 0x00008000
+/* Reads the general purpose register in MICROMIPSOP_*_ME. */
+#define INSN2_READ_GPR_ME 0x00010000
+/* Reads/writes the general purpose register in MICROMIPSOP_*_MF. */
+#define INSN2_MOD_GPR_MF 0x00020000
+/* Reads the general purpose register in MICROMIPSOP_*_MG. */
+#define INSN2_READ_GPR_MG 0x00040000
+/* Reads the general purpose register in MICROMIPSOP_*_MJ. */
+#define INSN2_READ_GPR_MJ 0x00080000
+/* Modifies the general purpose register in MICROMIPSOP_*_MJ. */
+#define INSN2_WRITE_GPR_MJ 0x00100000
+/* Reads the general purpose register in MICROMIPSOP_*_MP. */
+#define INSN2_READ_GPR_MP 0x00200000
+/* Modifies the general purpose register in MICROMIPSOP_*_MP. */
+#define INSN2_WRITE_GPR_MP 0x00400000
+/* Reads the general purpose register in MICROMIPSOP_*_MQ. */
+#define INSN2_READ_GPR_MQ 0x00800000
+/* Reads/Writes the stack pointer ($29). */
+#define INSN2_MOD_SP 0x01000000
+/* Reads the RA ($31) register. */
+#define INSN2_READ_GPR_31 0x02000000
+/* Reads the global pointer ($28). */
+#define INSN2_READ_GP 0x04000000
+/* Reads the program counter ($pc). */
+#define INSN2_READ_PC 0x08000000
+/* Is an unconditional branch insn. */
+#define INSN2_UNCOND_BRANCH 0x10000000
+/* Is a conditional branch insn. */
+#define INSN2_COND_BRANCH 0x20000000
+/* Modifies the general purpose registers in MICROMIPSOP_*_MH/I. */
+#define INSN2_WRITE_GPR_MHI 0x40000000
+/* Reads the general purpose registers in MICROMIPSOP_*_MM/N. */
+#define INSN2_READ_GPR_MMN 0x80000000
+
/* Masks used to mark instructions to indicate which MIPS ISA level
they were introduced in. INSN_ISA_MASK masks an enumeration that
specifies the base ISA level(s). The remainder of a 32-bit
#define INSN_OCTEON 0x00000800
/* Masks used for MIPS-defined ASEs. */
-#define INSN_ASE_MASK 0x3c00f000
+#define INSN_ASE_MASK 0x3c00f010
/* DSP ASE */
#define INSN_DSP 0x00001000
/* RMI Xlr instruction */
#define INSN_XLR 0x00000020
+/* MCU (MicroController) ASE */
+#define INSN_MCU 0x00000010
+
/* MIPS ISA defines, use instead of hardcoding ISA level. */
#define ISA_UNKNOWN 0 /* Gas internal use. */
enum
{
M_ABS,
+ M_ACLR_AB,
+ M_ACLR_OB,
M_ADD_I,
M_ADDU_I,
M_AND_I,
+ M_ASET_AB,
+ M_ASET_OB,
M_BALIGN,
+ M_BC1FL,
+ M_BC1TL,
+ M_BC2FL,
+ M_BC2TL,
M_BEQ,
M_BEQ_I,
+ M_BEQL,
M_BEQL_I,
M_BGE,
M_BGEL,
M_BGEUL,
M_BGEU_I,
M_BGEUL_I,
+ M_BGEZ,
+ M_BGEZL,
+ M_BGEZALL,
M_BGT,
M_BGTL,
M_BGT_I,
M_BGTUL,
M_BGTU_I,
M_BGTUL_I,
+ M_BGTZ,
+ M_BGTZL,
M_BLE,
M_BLEL,
M_BLE_I,
M_BLEUL,
M_BLEU_I,
M_BLEUL_I,
+ M_BLEZ,
+ M_BLEZL,
M_BLT,
M_BLTL,
M_BLT_I,
M_BLTUL,
M_BLTU_I,
M_BLTUL_I,
+ M_BLTZ,
+ M_BLTZL,
+ M_BLTZALL,
M_BNE,
+ M_BNEL,
M_BNE_I,
M_BNEL_I,
M_CACHE_AB,
+ M_CACHE_OB,
M_DABS,
M_DADD_I,
M_DADDU_I,
M_JAL_1,
M_JAL_2,
M_JAL_A,
+ M_JALS_1,
+ M_JALS_2,
+ M_JALS_A,
M_L_DOB,
M_L_DAB,
M_LA_AB,
M_LD_AB,
M_LDC1_AB,
M_LDC2_AB,
+ M_LDC2_OB,
M_LDC3_AB,
M_LDL_AB,
+ M_LDL_OB,
+ M_LDM_AB,
+ M_LDM_OB,
+ M_LDP_AB,
+ M_LDP_OB,
M_LDR_AB,
+ M_LDR_OB,
M_LH_A,
M_LH_AB,
M_LHU_A,
M_LI_S,
M_LI_SS,
M_LL_AB,
+ M_LL_OB,
M_LLD_AB,
+ M_LLD_OB,
M_LS_A,
M_LW_A,
M_LW_AB,
M_LWC1_AB,
M_LWC2_A,
M_LWC2_AB,
+ M_LWC2_OB,
M_LWC3_A,
M_LWC3_AB,
M_LWL_A,
M_LWL_AB,
+ M_LWL_OB,
+ M_LWM_AB,
+ M_LWM_OB,
+ M_LWP_AB,
+ M_LWP_OB,
M_LWR_A,
M_LWR_AB,
+ M_LWR_OB,
M_LWU_AB,
+ M_LWU_OB,
M_MSGSND,
M_MSGLD,
M_MSGLD_T,
M_NOR_I,
M_OR_I,
M_PREF_AB,
+ M_PREF_OB,
M_REM_3,
M_REM_3I,
M_REMU_3,
M_S_DAB,
M_S_S,
M_SC_AB,
+ M_SC_OB,
M_SCD_AB,
+ M_SCD_OB,
M_SD_A,
M_SD_OB,
M_SD_AB,
M_SDC1_AB,
M_SDC2_AB,
+ M_SDC2_OB,
M_SDC3_AB,
M_SDL_AB,
+ M_SDL_OB,
+ M_SDM_AB,
+ M_SDM_OB,
+ M_SDP_AB,
+ M_SDP_OB,
M_SDR_AB,
+ M_SDR_OB,
M_SEQ,
M_SEQ_I,
M_SGE,
M_SWC1_AB,
M_SWC2_A,
M_SWC2_AB,
+ M_SWC2_OB,
M_SWC3_A,
M_SWC3_AB,
M_SWL_A,
M_SWL_AB,
+ M_SWL_OB,
+ M_SWM_AB,
+ M_SWM_OB,
+ M_SWP_AB,
+ M_SWP_OB,
M_SWR_A,
M_SWR_AB,
+ M_SWR_OB,
M_SUB_I,
M_SUBU_I,
M_SUBU_I_2,
/* The following flags have the same value for the mips16 opcode
table:
+
+ INSN_ISA3
+
INSN_UNCOND_BRANCH_DELAY
INSN_COND_BRANCH_DELAY
INSN_COND_BRANCH_LIKELY (never used)
INSN_WRITE_HI
INSN_WRITE_LO
INSN_TRAP
- INSN_ISA3
+ FP_D (never used)
*/
extern const struct mips_opcode mips16_opcodes[];
extern const int bfd_mips16_num_opcodes;
+/* These are the bit masks and shift counts used for the different fields
+ in the microMIPS instruction formats. No masks are provided for the
+ fixed portions of an instruction, since they are not needed. */
+
+#define MICROMIPSOP_MASK_IMMEDIATE 0xffff
+#define MICROMIPSOP_SH_IMMEDIATE 0
+#define MICROMIPSOP_MASK_DELTA 0xffff
+#define MICROMIPSOP_SH_DELTA 0
+#define MICROMIPSOP_MASK_CODE10 0x3ff
+#define MICROMIPSOP_SH_CODE10 16 /* 10-bit wait code. */
+#define MICROMIPSOP_MASK_TRAP 0xf
+#define MICROMIPSOP_SH_TRAP 12 /* 4-bit trap code. */
+#define MICROMIPSOP_MASK_SHAMT 0x1f
+#define MICROMIPSOP_SH_SHAMT 11
+#define MICROMIPSOP_MASK_TARGET 0x3ffffff
+#define MICROMIPSOP_SH_TARGET 0
+#define MICROMIPSOP_MASK_EXTLSB 0x1f /* "ext" LSB. */
+#define MICROMIPSOP_SH_EXTLSB 6
+#define MICROMIPSOP_MASK_EXTMSBD 0x1f /* "ext" MSBD. */
+#define MICROMIPSOP_SH_EXTMSBD 11
+#define MICROMIPSOP_MASK_INSMSB 0x1f /* "ins" MSB. */
+#define MICROMIPSOP_SH_INSMSB 11
+#define MICROMIPSOP_MASK_CODE 0x3ff
+#define MICROMIPSOP_SH_CODE 16 /* 10-bit higher break code. */
+#define MICROMIPSOP_MASK_CODE2 0x3ff
+#define MICROMIPSOP_SH_CODE2 6 /* 10-bit lower break code. */
+#define MICROMIPSOP_MASK_CACHE 0x1f
+#define MICROMIPSOP_SH_CACHE 21 /* 5-bit cache op. */
+#define MICROMIPSOP_MASK_SEL 0x7
+#define MICROMIPSOP_SH_SEL 11
+#define MICROMIPSOP_MASK_OFFSET12 0xfff
+#define MICROMIPSOP_SH_OFFSET12 0
+#define MICROMIPSOP_MASK_3BITPOS 0x7
+#define MICROMIPSOP_SH_3BITPOS 21
+#define MICROMIPSOP_MASK_STYPE 0x1f
+#define MICROMIPSOP_SH_STYPE 16
+#define MICROMIPSOP_MASK_OFFSET10 0x3ff
+#define MICROMIPSOP_SH_OFFSET10 6
+#define MICROMIPSOP_MASK_RS 0x1f
+#define MICROMIPSOP_SH_RS 16
+#define MICROMIPSOP_MASK_RT 0x1f
+#define MICROMIPSOP_SH_RT 21
+#define MICROMIPSOP_MASK_RD 0x1f
+#define MICROMIPSOP_SH_RD 11
+#define MICROMIPSOP_MASK_FS 0x1f
+#define MICROMIPSOP_SH_FS 16
+#define MICROMIPSOP_MASK_FT 0x1f
+#define MICROMIPSOP_SH_FT 21
+#define MICROMIPSOP_MASK_FD 0x1f
+#define MICROMIPSOP_SH_FD 11
+#define MICROMIPSOP_MASK_FR 0x1f
+#define MICROMIPSOP_SH_FR 6
+#define MICROMIPSOP_MASK_RS3 0x1f
+#define MICROMIPSOP_SH_RS3 6
+#define MICROMIPSOP_MASK_PREFX 0x1f
+#define MICROMIPSOP_SH_PREFX 11
+#define MICROMIPSOP_MASK_BCC 0x7
+#define MICROMIPSOP_SH_BCC 18
+#define MICROMIPSOP_MASK_CCC 0x7
+#define MICROMIPSOP_SH_CCC 13
+#define MICROMIPSOP_MASK_COPZ 0x7fffff
+#define MICROMIPSOP_SH_COPZ 3
+
+#define MICROMIPSOP_MASK_MB 0x7
+#define MICROMIPSOP_SH_MB 23
+#define MICROMIPSOP_MASK_MC 0x7
+#define MICROMIPSOP_SH_MC 4
+#define MICROMIPSOP_MASK_MD 0x7
+#define MICROMIPSOP_SH_MD 7
+#define MICROMIPSOP_MASK_ME 0x7
+#define MICROMIPSOP_SH_ME 1
+#define MICROMIPSOP_MASK_MF 0x7
+#define MICROMIPSOP_SH_MF 3
+#define MICROMIPSOP_MASK_MG 0x7
+#define MICROMIPSOP_SH_MG 0
+#define MICROMIPSOP_MASK_MH 0x7
+#define MICROMIPSOP_SH_MH 7
+#define MICROMIPSOP_MASK_MI 0x7
+#define MICROMIPSOP_SH_MI 7
+#define MICROMIPSOP_MASK_MJ 0x1f
+#define MICROMIPSOP_SH_MJ 0
+#define MICROMIPSOP_MASK_ML 0x7
+#define MICROMIPSOP_SH_ML 4
+#define MICROMIPSOP_MASK_MM 0x7
+#define MICROMIPSOP_SH_MM 1
+#define MICROMIPSOP_MASK_MN 0x7
+#define MICROMIPSOP_SH_MN 4
+#define MICROMIPSOP_MASK_MP 0x1f
+#define MICROMIPSOP_SH_MP 5
+#define MICROMIPSOP_MASK_MQ 0x7
+#define MICROMIPSOP_SH_MQ 7
+
+#define MICROMIPSOP_MASK_IMMA 0x7f
+#define MICROMIPSOP_SH_IMMA 0
+#define MICROMIPSOP_MASK_IMMB 0x7
+#define MICROMIPSOP_SH_IMMB 1
+#define MICROMIPSOP_MASK_IMMC 0xf
+#define MICROMIPSOP_SH_IMMC 0
+#define MICROMIPSOP_MASK_IMMD 0x3ff
+#define MICROMIPSOP_SH_IMMD 0
+#define MICROMIPSOP_MASK_IMME 0x7f
+#define MICROMIPSOP_SH_IMME 0
+#define MICROMIPSOP_MASK_IMMF 0xf
+#define MICROMIPSOP_SH_IMMF 0
+#define MICROMIPSOP_MASK_IMMG 0xf
+#define MICROMIPSOP_SH_IMMG 0
+#define MICROMIPSOP_MASK_IMMH 0xf
+#define MICROMIPSOP_SH_IMMH 0
+#define MICROMIPSOP_MASK_IMMI 0x7f
+#define MICROMIPSOP_SH_IMMI 0
+#define MICROMIPSOP_MASK_IMMJ 0xf
+#define MICROMIPSOP_SH_IMMJ 0
+#define MICROMIPSOP_MASK_IMML 0xf
+#define MICROMIPSOP_SH_IMML 0
+#define MICROMIPSOP_MASK_IMMM 0x7
+#define MICROMIPSOP_SH_IMMM 1
+#define MICROMIPSOP_MASK_IMMN 0x3
+#define MICROMIPSOP_SH_IMMN 4
+#define MICROMIPSOP_MASK_IMMO 0xf
+#define MICROMIPSOP_SH_IMMO 0
+#define MICROMIPSOP_MASK_IMMP 0x1f
+#define MICROMIPSOP_SH_IMMP 0
+#define MICROMIPSOP_MASK_IMMQ 0x7fffff
+#define MICROMIPSOP_SH_IMMQ 0
+#define MICROMIPSOP_MASK_IMMU 0x1f
+#define MICROMIPSOP_SH_IMMU 0
+#define MICROMIPSOP_MASK_IMMW 0x3f
+#define MICROMIPSOP_SH_IMMW 1
+#define MICROMIPSOP_MASK_IMMX 0xf
+#define MICROMIPSOP_SH_IMMX 1
+#define MICROMIPSOP_MASK_IMMY 0x1ff
+#define MICROMIPSOP_SH_IMMY 1
+
+/* Placeholders for fields that only exist in the traditional 32-bit
+ instruction encoding; see the comment above for details. */
+#define MICROMIPSOP_MASK_CODE20 0
+#define MICROMIPSOP_SH_CODE20 0
+#define MICROMIPSOP_MASK_PERFREG 0
+#define MICROMIPSOP_SH_PERFREG 0
+#define MICROMIPSOP_MASK_CODE19 0
+#define MICROMIPSOP_SH_CODE19 0
+#define MICROMIPSOP_MASK_ALN 0
+#define MICROMIPSOP_SH_ALN 0
+#define MICROMIPSOP_MASK_VECBYTE 0
+#define MICROMIPSOP_SH_VECBYTE 0
+#define MICROMIPSOP_MASK_VECALIGN 0
+#define MICROMIPSOP_SH_VECALIGN 0
+#define MICROMIPSOP_MASK_DSPACC 0
+#define MICROMIPSOP_SH_DSPACC 0
+#define MICROMIPSOP_MASK_DSPACC_S 0
+#define MICROMIPSOP_SH_DSPACC_S 0
+#define MICROMIPSOP_MASK_DSPSFT 0
+#define MICROMIPSOP_SH_DSPSFT 0
+#define MICROMIPSOP_MASK_DSPSFT_7 0
+#define MICROMIPSOP_SH_DSPSFT_7 0
+#define MICROMIPSOP_MASK_SA3 0
+#define MICROMIPSOP_SH_SA3 0
+#define MICROMIPSOP_MASK_SA4 0
+#define MICROMIPSOP_SH_SA4 0
+#define MICROMIPSOP_MASK_IMM8 0
+#define MICROMIPSOP_SH_IMM8 0
+#define MICROMIPSOP_MASK_IMM10 0
+#define MICROMIPSOP_SH_IMM10 0
+#define MICROMIPSOP_MASK_WRDSP 0
+#define MICROMIPSOP_SH_WRDSP 0
+#define MICROMIPSOP_MASK_RDDSP 0
+#define MICROMIPSOP_SH_RDDSP 0
+#define MICROMIPSOP_MASK_BP 0
+#define MICROMIPSOP_SH_BP 0
+#define MICROMIPSOP_MASK_MT_U 0
+#define MICROMIPSOP_SH_MT_U 0
+#define MICROMIPSOP_MASK_MT_H 0
+#define MICROMIPSOP_SH_MT_H 0
+#define MICROMIPSOP_MASK_MTACC_T 0
+#define MICROMIPSOP_SH_MTACC_T 0
+#define MICROMIPSOP_MASK_MTACC_D 0
+#define MICROMIPSOP_SH_MTACC_D 0
+#define MICROMIPSOP_MASK_BBITIND 0
+#define MICROMIPSOP_SH_BBITIND 0
+#define MICROMIPSOP_MASK_CINSPOS 0
+#define MICROMIPSOP_SH_CINSPOS 0
+#define MICROMIPSOP_MASK_CINSLM1 0
+#define MICROMIPSOP_SH_CINSLM1 0
+#define MICROMIPSOP_MASK_SEQI 0
+#define MICROMIPSOP_SH_SEQI 0
+#define MICROMIPSOP_SH_OFFSET_A 0
+#define MICROMIPSOP_MASK_OFFSET_A 0
+#define MICROMIPSOP_SH_OFFSET_B 0
+#define MICROMIPSOP_MASK_OFFSET_B 0
+#define MICROMIPSOP_SH_OFFSET_C 0
+#define MICROMIPSOP_MASK_OFFSET_C 0
+#define MICROMIPSOP_SH_RZ 0
+#define MICROMIPSOP_MASK_RZ 0
+#define MICROMIPSOP_SH_FZ 0
+#define MICROMIPSOP_MASK_FZ 0
+
+/* These are the characters which may appears in the args field of a microMIPS
+ instruction. They appear in the order in which the fields appear
+ when the instruction is used. Commas and parentheses in the args
+ string are ignored when assembling, and written into the output
+ when disassembling.
+
+ The followings are for 16-bit microMIPS instructions.
+
+ "ma" must be $28
+ "mc" 3-bit MIPS registers 2-7, 16, 17 (MICROMIPSOP_*_MC) at bit 4
+ The same register used as both source and target.
+ "md" 3-bit MIPS registers 2-7, 16, 17 (MICROMIPSOP_*_MD) at bit 7
+ "me" 3-bit MIPS registers 2-7, 16, 17 (MICROMIPSOP_*_ME) at bit 1
+ The same register used as both source and target.
+ "mf" 3-bit MIPS registers 2-7, 16, 17 (MICROMIPSOP_*_MF) at bit 3
+ "mg" 3-bit MIPS registers 2-7, 16, 17 (MICROMIPSOP_*_MG) at bit 0
+ "mh" MIPS registers 4, 5, 6 (MICROMIPSOP_*_MH) at bit 7
+ "mi" MIPS registers 5, 6, 7, 21, 22 (MICROMIPSOP_*_MI) at bit 7
+ ("mh" and "mi" form a valid 3-bit register pair)
+ "mj" 5-bit MIPS registers (MICROMIPSOP_*_MJ) at bit 0
+ "ml" 3-bit MIPS registers 2-7, 16, 17 (MICROMIPSOP_*_ML) at bit 4
+ "mm" 3-bit MIPS registers 0, 2, 3, 16-20 (MICROMIPSOP_*_MM) at bit 1
+ "mn" 3-bit MIPS registers 0, 2, 3, 16-20 (MICROMIPSOP_*_MN) at bit 4
+ "mp" 5-bit MIPS registers (MICROMIPSOP_*_MP) at bit 5
+ "mq" 3-bit MIPS registers 0, 2-7, 17 (MICROMIPSOP_*_MQ) at bit 7
+ "mr" must be program counter
+ "ms" must be $29
+ "mt" must be the same as the previous register
+ "mx" must be the same as the destination register
+ "my" must be $31
+ "mz" must be $0
+
+ "mA" 7-bit immediate (-64 .. 63) << 2 (MICROMIPSOP_*_IMMA)
+ "mB" 3-bit immediate (-1, 1, 4, 8, 12, 16, 20, 24) (MICROMIPSOP_*_IMMB)
+ "mC" 4-bit immediate (1, 2, 3, 4, 7, 8, 15, 16, 31, 32, 63, 64, 128, 255,
+ 32768, 65535) (MICROMIPSOP_*_IMMC)
+ "mD" 10-bit branch address (-512 .. 511) << 1 (MICROMIPSOP_*_IMMD)
+ "mE" 7-bit branch address (-64 .. 63) << 1 (MICROMIPSOP_*_IMME)
+ "mF" 4-bit immediate (0 .. 15) (MICROMIPSOP_*_IMMF)
+ "mG" 4-bit immediate (-1 .. 14) (MICROMIPSOP_*_IMMG)
+ "mH" 4-bit immediate (0 .. 15) << 1 (MICROMIPSOP_*_IMMH)
+ "mI" 7-bit immediate (-1 .. 126) (MICROMIPSOP_*_IMMI)
+ "mJ" 4-bit immediate (0 .. 15) << 2 (MICROMIPSOP_*_IMMJ)
+ "mL" 4-bit immediate (0 .. 15) (MICROMIPSOP_*_IMML)
+ "mM" 3-bit immediate (1 .. 8) (MICROMIPSOP_*_IMMM)
+ "mN" 2-bit immediate (0 .. 3) for register list (MICROMIPSOP_*_IMMN)
+ "mO" 4-bit immediate (0 .. 15) (MICROMIPSOP_*_IMML)
+ "mP" 5-bit immediate (0 .. 31) << 2 (MICROMIPSOP_*_IMMP)
+ "mU" 5-bit immediate (0 .. 31) << 2 (MICROMIPSOP_*_IMMU)
+ "mW" 6-bit immediate (0 .. 63) << 2 (MICROMIPSOP_*_IMMW)
+ "mX" 4-bit immediate (-8 .. 7) (MICROMIPSOP_*_IMMX)
+ "mY" 9-bit immediate (-258 .. -3, 2 .. 257) << 2 (MICROMIPSOP_*_IMMY)
+ "mZ" must be zero
+
+ In most cases 32-bit microMIPS instructions use the same characters
+ as MIPS (with ADDIUPC being a notable exception, but there are some
+ others too).
+
+ "." 10-bit signed offset/number (MICROMIPSOP_*_OFFSET10)
+ "1" 5-bit sync type (MICROMIPSOP_*_SHAMT)
+ "<" 5-bit shift amount (MICROMIPSOP_*_SHAMT)
+ ">" shift amount between 32 and 63, stored after subtracting 32
+ (MICROMIPSOP_*_SHAMT)
+ "\" 3-bit position for ASET and ACLR (MICROMIPSOP_*_3BITPOS)
+ "|" 4-bit trap code (MICROMIPSOP_*_TRAP)
+ "~" 12-bit signed offset (MICROMIPSOP_*_OFFSET12)
+ "a" 26-bit target address (MICROMIPSOP_*_TARGET)
+ "b" 5-bit base register (MICROMIPSOP_*_RS)
+ "c" 10-bit higher breakpoint code (MICROMIPSOP_*_CODE)
+ "d" 5-bit destination register specifier (MICROMIPSOP_*_RD)
+ "h" 5-bit PREFX hint (MICROMIPSOP_*_PREFX)
+ "i" 16 bit unsigned immediate (MICROMIPSOP_*_IMMEDIATE)
+ "j" 16-bit signed immediate (MICROMIPSOP_*_DELTA)
+ "k" 5-bit cache opcode in target register position (MICROMIPSOP_*_CACHE)
+ "n" register list for 32-bit LWM/SWM instruction (MICROMIPSOP_*_RT)
+ "o" 16-bit signed offset (MICROMIPSOP_*_DELTA)
+ "p" 16-bit PC-relative branch target address (MICROMIPSOP_*_DELTA)
+ "q" 10-bit lower breakpoint code (MICROMIPSOP_*_CODE2)
+ "r" 5-bit same register used as both source and target (MICROMIPSOP_*_RS)
+ "s" 5-bit source register specifier (MICROMIPSOP_*_RS)
+ "t" 5-bit target register (MICROMIPSOP_*_RT)
+ "u" 16-bit upper 16 bits of address (MICROMIPSOP_*_IMMEDIATE)
+ "v" 5-bit same register used as both source and destination
+ (MICROMIPSOP_*_RS)
+ "w" 5-bit same register used as both target and destination
+ (MICROMIPSOP_*_RT)
+ "y" 5-bit source 3 register for ALNV.PS (MICROMIPSOP_*_RS3)
+ "z" must be zero register
+ "C" 23-bit coprocessor function code (MICROMIPSOP_*_COPZ)
+ "B" 8-bit syscall/wait function code (MICROMIPSOP_*_CODE10)
+ "K" 5-bit Hardware Register (RDHWR instruction) (MICROMIPSOP_*_RS)
+
+ "+A" 5-bit INS/EXT/DINS/DEXT/DINSM/DEXTM position, which becomes
+ LSB (MICROMIPSOP_*_EXTLSB).
+ Enforces: 0 <= pos < 32.
+ "+B" 5-bit INS/DINS size, which becomes MSB (MICROMIPSOP_*_INSMSB).
+ Requires that "+A" or "+E" occur first to set position.
+ Enforces: 0 < (pos+size) <= 32.
+ "+C" 5-bit EXT/DEXT size, which becomes MSBD (MICROMIPSOP_*_EXTMSBD).
+ Requires that "+A" or "+E" occur first to set position.
+ Enforces: 0 < (pos+size) <= 32.
+ (Also used by DEXT w/ different limits, but limits for
+ that are checked by the M_DEXT macro.)
+ "+E" 5-bit DINSU/DEXTU position, which becomes LSB-32 (MICROMIPSOP_*_EXTLSB).
+ Enforces: 32 <= pos < 64.
+ "+F" 5-bit DINSM/DINSU size, which becomes MSB-32 (MICROMIPSOP_*_INSMSB).
+ Requires that "+A" or "+E" occur first to set position.
+ Enforces: 32 < (pos+size) <= 64.
+ "+G" 5-bit DEXTM size, which becomes MSBD-32 (MICROMIPSOP_*_EXTMSBD).
+ Requires that "+A" or "+E" occur first to set position.
+ Enforces: 32 < (pos+size) <= 64.
+ "+H" 5-bit DEXTU size, which becomes MSBD (MICROMIPSOP_*_EXTMSBD).
+ Requires that "+A" or "+E" occur first to set position.
+ Enforces: 32 < (pos+size) <= 64.
+
+ PC-relative addition (ADDIUPC) instruction:
+ "mQ" 23-bit offset (-4194304 .. 4194303) << 2 (MICROMIPSOP_*_IMMQ)
+ "mb" 3-bit MIPS registers 2-7, 16, 17 (MICROMIPSOP_*_MB) at bit 23
+
+ Floating point instructions:
+ "D" 5-bit destination register (MICROMIPSOP_*_FD)
+ "M" 3-bit compare condition code (MICROMIPSOP_*_CCC)
+ "N" 3-bit branch condition code (MICROMIPSOP_*_BCC)
+ "R" 5-bit fr source 3 register (MICROMIPSOP_*_FR)
+ "S" 5-bit fs source 1 register (MICROMIPSOP_*_FS)
+ "T" 5-bit ft source 2 register (MICROMIPSOP_*_FT)
+ "V" 5-bit same register used as floating source and destination or target
+ (MICROMIPSOP_*_FS)
+
+ Coprocessor instructions:
+ "E" 5-bit target register (MICROMIPSOP_*_RT)
+ "G" 5-bit destination register (MICROMIPSOP_*_RD)
+ "H" 3-bit sel field for (D)MTC* and (D)MFC* (MICROMIPSOP_*_SEL)
+ "+D" combined destination register ("G") and sel ("H") for CP0 ops,
+ for pretty-printing in disassembly only
+
+ Macro instructions:
+ "A" general 32 bit expression
+ "I" 32-bit immediate (value placed in imm_expr).
+ "+I" 32-bit immediate (value placed in imm2_expr).
+ "F" 64-bit floating point constant in .rdata
+ "L" 64-bit floating point constant in .lit8
+ "f" 32-bit floating point constant
+ "l" 32-bit floating point constant in .lit4
+
+ Other:
+ "()" parens surrounding optional value
+ "," separates operands
+ "+" start of extension sequence
+ "m" start of microMIPS extension sequence
+
+ Characters used so far, for quick reference when adding more:
+ "1234567890"
+ "<>(),+.\|~"
+ "ABCDEFGHI KLMN RST V "
+ "abcd f hijklmnopqrstuvw yz"
+
+ Extension character sequences used so far ("+" followed by the
+ following), for quick reference when adding more:
+ ""
+ ""
+ "ABCDEFGHI"
+ ""
+
+ Extension character sequences used so far ("m" followed by the
+ following), for quick reference when adding more:
+ ""
+ ""
+ " BCDEFGHIJ LMNOPQ U WXYZ"
+ " bcdefghij lmn pq st xyz"
+*/
+
+extern const struct mips_opcode micromips_opcodes[];
+extern const int bfd_micromips_num_opcodes;
+
/* A NOP insn impemented as "or at,at,zero".
Used to implement -mfix-loongson2f. */
#define LOONGSON2F_NOP_INSN 0x00200825
projects / external / binutils.git / blobdiff