MIPSINST.H
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上传日期:2007-01-31
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文件大小:12k
源码类别:
Windows编程
开发平台:
Visual C++
- /*++ BUILD Version: 0001 // Increment this if a change has global effects
- Copyright (c) 1993-1997 Microsoft Corporation
- Module Name:
- mipsinst.h
- Abstract:
- Mips instruction and floating constant definitions.
- Author:
- David N. Cutler (davec) 8-May-1992
- Revision History:
- --*/
- #ifndef _MIPSINST_
- #define _MIPSINST_
- //
- // Define MIPS instruction format structures.
- //
- typedef union _MIPS_INSTRUCTION {
- ULONG Long;
- UCHAR Byte[4];
- struct {
- ULONG Target : 26;
- ULONG Opcode : 6;
- } j_format;
- struct {
- LONG Simmediate : 16;
- ULONG Rt : 5;
- ULONG Rs : 5;
- ULONG Opcode : 6;
- } i_format;
- struct {
- ULONG Uimmediate : 16;
- ULONG Rt : 5;
- ULONG Rs : 5;
- ULONG Opcode : 6;
- } u_format;
- struct {
- ULONG Function : 6;
- ULONG Re : 5;
- ULONG Rd : 5;
- ULONG Rt : 5;
- ULONG Rs : 5;
- ULONG Opcode : 6;
- } r_format;
- struct {
- ULONG Function : 6;
- ULONG Re : 5;
- ULONG Rd : 5;
- ULONG Rt : 5;
- ULONG Format : 4;
- ULONG Fill1 : 1;
- ULONG Opcode : 6;
- } f_format;
- struct {
- ULONG Function : 6;
- ULONG Fd : 5;
- ULONG Fs : 5;
- ULONG Ft : 5;
- ULONG Format : 4;
- ULONG Fill1 : 1;
- ULONG Opcode : 6;
- } c_format;
- } MIPS_INSTRUCTION, *PMIPS_INSTRUCTION;
- //
- // Define MIPS instruction opcode values.
- //
- #define SPEC_OP 0x0 // special opcode - use function field
- #define BCOND_OP 0x1 // condition branch
- #define J_OP 0x2 // unconditional jump
- #define JAL_OP 0x3 // jump and link
- #define BEQ_OP 0x4 // branch equal
- #define BNE_OP 0x5 // branch not equal
- #define BLEZ_OP 0x6 // branch less than or equal
- #define BGTZ_OP 0x7 // branch greater than
- #define ADDI_OP 0x8 // add immediate signed integer
- #define ADDIU_OP 0x9 // add immediate unsigned integer
- #define SLTI_OP 0xa // set less than signed integer
- #define SLTIU_OP 0xb // set less than unsigned integer
- #define ANDI_OP 0xc // and unsigned immediate integer
- #define ORI_OP 0xd // or unsigned immediate integer
- #define XORI_OP 0xe // exclusive or unsigned immediate
- #define LUI_OP 0xf // load upper immediate integer
- #define COP0_OP 0x10 // coprocessor 0 operation
- #define COP1_OP 0x11 // coprocessor 1 operation
- #define BEQL_OP 0x14 // branch equal likely
- #define BNEL_OP 0x15 // branch not equal likely
- #define BLEZL_OP 0x16 // branch less than or equal likely
- #define BGTZL_OP 0x17 // branch greater than likely
- #define LDL_OP 0x1a // load double left integer
- #define LDR_OP 0x1b // load double right integer
- #define LB_OP 0x20 // load byte signed integer
- #define LH_OP 0x21 // load halfword signed integer
- #define LWL_OP 0x22 // load word left integer
- #define LW_OP 0x23 // load word integer
- #define LBU_OP 0x24 // load byte unsigned integer
- #define LHU_OP 0x25 // load halfword unsigned integer
- #define LWR_OP 0x26 // load word right integer
- #define LWU_OP 0x27 // load word unsigned integer
- #define SB_OP 0x28 // store byte integer
- #define SH_OP 0x29 // store halfword integer
- #define SWL_OP 0x2a // store word left integer
- #define SW_OP 0x2b // store word integer register
- #define SDL_OP 0x2c // store double left integer
- #define SDR_OP 0x2d // store double right integer
- #define SWR_OP 0x2e // store word right integer
- #define CACHE_OP 0x2f // cache operation
- #define LL_OP 0x30 // load linked integer register
- #define LWC1_OP 0x31 // load word floating
- #define LWC2_OP 0x32 // load word coprocessor 2
- #define LLD_OP 0x34 // load locked double integer
- #define LDC1_OP 0x35 // load word double floating
- #define LDC2_OP 0x36 // load double coprocessor 2
- #define LD_OP 0x37 // load double integer
- #define SC_OP 0x38 // store conditional word integer
- #define SWC1_OP 0x39 // store word floating
- #define SWC2_OP 0x3a // store double coprocessor 2
- #define SDC_OP 0x3c // store conditional double integer
- #define SDC1_OP 0x3d // store double floating
- #define SDC2_OP 0x3e // store double copreocessor 2
- #define SD_OP 0x3f // store double integer register
- //
- // Define special function subopcodes.
- //
- #define SLL_OP 0x0 // shift left logical integer
- #define SRL_OP 0x2 // shift right logical integer
- #define SRA_OP 0x3 // shift right arithmetic integer
- #define SLLV_OP 0x4 // shift left logical variable integer
- #define SRLV_OP 0x6 // shift right logical variable integer
- #define SRAV_OP 0x7 // shift right arithmetic variable integer
- #define JR_OP 0x8 // jump register
- #define JALR_OP 0x9 // jump and link register
- #define SYSCALL_OP 0xc // system call trap
- #define BREAK_OP 0xd // breakpoint trap
- #define MFHI_OP 0x10 // more from high integer
- #define MTHI_OP 0x11 // move to high integer
- #define MFLO_OP 0x12 // move from low integer
- #define MTLO_OP 0x13 // move to low integer
- #define MULT_OP 0x18 // multiply signed integer
- #define MULTU_OP 0x19 // multiply unsigned integer
- #define DIV_OP 0x1a // divide signed integer
- #define DIVU_OP 0x1b // divide unsigned integer
- #define ADD_OP 0x20 // add signed integer
- #define ADDU_OP 0x21 // add unsigned integer
- #define SUP_OP 0x22 // subtract signed integer
- #define SUBU_OP 0x23 // subtract unsigned integer
- #define AND_OP 0x24 // and integer
- #define OR_OP 0x25 // or integer
- #define XOR_OP 0x26 // exclusive or integer
- #define NOR_OP 0x27 // nor integer
- #define SLT_OP 0x2a // set less signed integer
- #define SLTU_OP 0x2b // set less unsigned integer
- //
- // Define branch conditional subopcodes.
- //
- #define BLTZ_OP 0x0 // branch less that zero integer
- #define BGEZ_OP 0x1 // branch greater than or equal zero integer
- #define BLTZL_OP 0x2 // branch less that zero integer liekly
- #define BGEZL_OP 0x3 // branch greater than or equal zero integer likely
- #define BLTZAL_OP 0x10 // branch less than zero integer and link
- #define BGEZAL_OP 0x11 // branch greater than or equal zero integer and link
- #define BLTZALL_OP 0x12 // branch less than zero integer and link likely
- #define BGEZALL_OP 0x13 // branch greater than or equal zero integer and link likely
- //
- // Coprocessor branch true and false subfunctions and mask values.
- //
- #define COPz_BC_MASK 0x3e10000 // coprocessor z branch condition mask
- #define COPz_BF 0x1000000 // coprocessor z branch false subfunction
- #define COPz_BT 0x1010000 // coprocessor z branch true subfunction
- //
- // Define floating coprocessor 1 opcodes.
- //
- #define FLOAT_ADD 0 // floating add
- #define FLOAT_SUBTRACT 1 // floating subtract
- #define FLOAT_MULTIPLY 2 // floating multiply
- #define FLOAT_DIVIDE 3 // floating divide
- #define FLOAT_SQUARE_ROOT 4 // floating square root
- #define FLOAT_ABSOLUTE 5 // floating absolute value
- #define FLOAT_MOVE 6 // floating move
- #define FLOAT_NEGATE 7 // floating negate
- #define FLOAT_ROUND_QUADWORD 8 // floating round to longword
- #define FLOAT_TRUNC_QUADWORD 9 // floating truncate to longword
- #define FLOAT_CEIL_QUADWORD 10 // floating ceiling
- #define FLOAT_FLOOR_QUADWORD 11 // floating floor
- #define FLOAT_ROUND_LONGWORD 12 // floating round to longword
- #define FLOAT_TRUNC_LONGWORD 13 // floating truncate to longword
- #define FLOAT_CEIL_LONGWORD 14 // floating ceiling
- #define FLOAT_FLOOR_LONGWORD 15 // floating floor
- #define FLOAT_ILLEGAL 16 // illegal floating opcode
- #define FLOAT_COMPARE_SINGLE 17 // floating compare single
- #define FLOAT_COMPARE_DOUBLE 18 // floating compare double
- #define FLOAT_CONVERT_SINGLE 32 // floating convert to single
- #define FLOAT_CONVERT_DOUBLE 33 // floating convert to double
- #define FLOAT_CONVERT_LONGWORD 36 // floating convert to longword integer
- #define FLOAT_CONVERT_QUADWORD 37 // floating convert to quadword integer
- #define FLOAT_COMPARE 48 // starting floating compare code
- //
- // Define floating format values.
- //
- #define FORMAT_SINGLE 0 // single floating format
- #define FORMAT_DOUBLE 1 // double floating format
- #define FORMAT_LONGWORD 4 // longword integer format
- #define FORMAT_QUADWORD 5 // quadword integer format
- //
- // Define jump indirect return address register.
- //
- #define JUMP_RA 0x3e00008 // jump indirect return address
- //
- // Define maximum and minimum single and double exponent values.
- //
- #define DOUBLE_MAXIMUM_EXPONENT 2047
- #define DOUBLE_MINIMUM_EXPONENT 0
- #define SINGLE_MAXIMUM_EXPONENT 255
- #define SINGLE_MINIMUM_EXPONENT 0
- //
- // Define single and double exponent bias values.
- //
- #define SINGLE_EXPONENT_BIAS 127
- #define DOUBLE_EXPONENT_BIAS 1023
- //
- // Define the largest single and double values;
- //
- #define DOUBLE_MAXIMUM_VALUE 0x7fefffffffffffff
- #define DOUBLE_MAXIMUM_VALUE_LOW 0xffffffff
- #define DOUBLE_MAXIMUM_VALUE_HIGH 0x7fefffff
- #define SINGLE_MAXIMUM_VALUE 0x7f7fffff
- //
- // Define single and double quite and signaling Nan values.
- //
- #define DOUBLE_NAN_LOW 0xffffffff
- #define DOUBLE_QUIET_NAN 0x7ff7ffff
- #define DOUBLE_SIGNAL_NAN 0x7fffffff
- #define SINGLE_QUIET_NAN 0x7fbfffff
- #define SINGLE_SIGNAL_NAN 0x7fffffff
- #define DOUBLE_INTEGER_NAN 0x7fffffffffffffff
- #define SINGLE_INTEGER_NAN 0x7fffffff
- //
- // Define positive single and double infinity values.
- //
- #define DOUBLE_INFINITY_VALUE 0x7ff0000000000000
- #define DOUBLE_INFINITY_VALUE_LOW 0x0
- #define DOUBLE_INFINITY_VALUE_HIGH 0x7ff00000
- #define SINGLE_INFINITY_VALUE 0x7f800000
- //
- // Define rounding modes.
- //
- #define ROUND_TO_NEAREST 0 // round to nearest representable value
- #define ROUND_TO_ZERO 1 // round toward zero
- #define ROUND_TO_PLUS_INFINITY 2 // round toward plus infinity
- #define ROUND_TO_MINUS_INFINITY 3 // round toward minus infinity
- #endif // MIPSINST