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Diffstat (limited to 'include/opcode/dlx.h')
| -rw-r--r-- | include/opcode/dlx.h | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/include/opcode/dlx.h b/include/opcode/dlx.h new file mode 100644 index 000000000..e1b249f85 --- /dev/null +++ b/include/opcode/dlx.h @@ -0,0 +1,282 @@ +/* Table of opcodes for the DLX microprocess. + Copyright 2002 Free Software Foundation, Inc. + + This file is part of GDB and GAS. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + + Initially created by Kuang Hwa Lin, 2002. */ + +/* Following are the function codes for the Special OP (ALU). */ +#define ALUOP 0x00000000 +#define SPECIALOP 0x00000000 + +#define NOPF 0x00000000 +#define SLLF 0x00000004 +#define SRLF 0x00000006 +#define SRAF 0x00000007 + +#define SEQUF 0x00000010 +#define SNEUF 0x00000011 +#define SLTUF 0x00000012 +#define SGTUF 0x00000013 +#define SLEUF 0x00000014 +#define SGEUF 0x00000015 + +#define ADDF 0x00000020 +#define ADDUF 0x00000021 +#define SUBF 0x00000022 +#define SUBUF 0x00000023 +#define ANDF 0x00000024 +#define ORF 0x00000025 +#define XORF 0x00000026 + +#define SEQF 0x00000028 +#define SNEF 0x00000029 +#define SLTF 0x0000002A +#define SGTF 0x0000002B +#define SLEF 0x0000002C +#define SGEF 0x0000002D + /* Following special functions was not mentioned in the + Hennessy's book but was implemented in the RTL. */ +#define MVTSF 0x00000030 +#define MVFSF 0x00000031 +#define BSWAPF 0x00000032 +#define LUTF 0x00000033 +/* Following special functions was mentioned in the + Hennessy's book but was not implemented in the RTL. */ +#define MULTF 0x00000005 +#define MULTUF 0x00000006 +#define DIVF 0x00000007 +#define DIVUF 0x00000008 + + +/* Following are the rest of the OPcodes: + JOP = (0x002 << 26), JALOP = (0x003 << 26), BEQOP = (0x004 << 26), BNEOP = (0x005 << 26) + ADDIOP = (0x008 << 26), ADDUIOP= (0x009 << 26), SUBIOP = (0x00A << 26), SUBUIOP= (0x00B << 26) + ANDIOP = (0x00C << 26), ORIOP = (0x00D << 26), XORIOP = (0x00E << 26), LHIOP = (0x00F << 26) + RFEOP = (0x010 << 26), TRAPOP = (0x011 << 26), JROP = (0x012 << 26), JALROP = (0x013 << 26) + BREAKOP= (0x014 << 26) + SEQIOP = (0x018 << 26), SNEIOP = (0x019 << 26), SLTIOP = (0x01A << 26), SGTIOP = (0x01B << 26) + SLEIOP = (0x01C << 26), SGEIOP = (0x01D << 26) + LBOP = (0x020 << 26), LHOP = (0x021 << 26), LWOP = (0x023 << 26), LBUOP = (0x024 << 26) + LHUOP = (0x025 << 26), SBOP = (0x028 << 26), SHOP = (0x029 << 26), SWOP = (0x02B << 26) + LSBUOP = (0x026 << 26), LSHU = (0x027 << 26), LSW = (0x02C << 26), + SEQUIOP= (0x030 << 26), SNEUIOP= (0x031 << 26), SLTUIOP= (0x032 << 26), SGTUIOP= (0x033 << 26) + SLEUIOP= (0x034 << 26), SGEUIOP= (0x035 << 26) + SLLIOP = (0x036 << 26), SRLIOP = (0x037 << 26), SRAIOP = (0x038 << 26). */ +#define JOP 0x08000000 +#define JALOP 0x0c000000 +#define BEQOP 0x10000000 +#define BNEOP 0x14000000 + +#define ADDIOP 0x20000000 +#define ADDUIOP 0x24000000 +#define SUBIOP 0x28000000 +#define SUBUIOP 0x2c000000 +#define ANDIOP 0x30000000 +#define ORIOP 0x34000000 +#define XORIOP 0x38000000 +#define LHIOP 0x3c000000 +#define RFEOP 0x40000000 +#define TRAPOP 0x44000000 +#define JROP 0x48000000 +#define JALROP 0x4c000000 +#define BREAKOP 0x50000000 + +#define SEQIOP 0x60000000 +#define SNEIOP 0x64000000 +#define SLTIOP 0x68000000 +#define SGTIOP 0x6c000000 +#define SLEIOP 0x70000000 +#define SGEIOP 0x74000000 + +#define LBOP 0x80000000 +#define LHOP 0x84000000 +#define LWOP 0x8c000000 +#define LBUOP 0x90000000 +#define LHUOP 0x94000000 +#define LDSTBU +#define LDSTHU +#define SBOP 0xa0000000 +#define SHOP 0xa4000000 +#define SWOP 0xac000000 +#define LDST + +#define SEQUIOP 0xc0000000 +#define SNEUIOP 0xc4000000 +#define SLTUIOP 0xc8000000 +#define SGTUIOP 0xcc000000 +#define SLEUIOP 0xd0000000 +#define SGEUIOP 0xd4000000 + +#define SLLIOP 0xd8000000 +#define SRLIOP 0xdc000000 +#define SRAIOP 0xe0000000 + +/* Following 3 ops was added to provide the MP atonmic operation. */ +#define LSBUOP 0x98000000 +#define LSHUOP 0x9c000000 +#define LSWOP 0xb0000000 + +/* Following opcode was defined in the Hennessy's book as + "normal" opcode but was implemented in the RTL as special + functions. */ +#if 0 +#define MVTSOP 0x50000000 +#define MVFSOP 0x54000000 +#endif + +struct dlx_opcode +{ + /* Name of the instruction. */ + char *name; + + /* Opcode word. */ + unsigned long opcode; + + /* A string of characters which describe the operands. + Valid characters are: + , Itself. The character appears in the assembly code. + a rs1 The register number is in bits 21-25 of the instruction. + b rs2/rd The register number is in bits 16-20 of the instruction. + c rd. The register number is in bits 11-15 of the instruction. + f FUNC bits 0-10 of the instruction. + i An immediate operand is in bits 0-16 of the instruction. 0 extended + I An immediate operand is in bits 0-16 of the instruction. sign extended + d An 16 bit PC relative displacement. + D An immediate operand is in bits 0-25 of the instruction. + N No opperands needed, for nops. + P it can be a register or a 16 bit operand. */ + char *args; +}; + +static const struct dlx_opcode dlx_opcodes[] = + { + /* Arithmetic and Logic R-TYPE instructions. */ + { "nop", (ALUOP|NOPF), "N" }, /* NOP */ + { "add", (ALUOP|ADDF), "c,a,b" }, /* Add */ + { "addu", (ALUOP|ADDUF), "c,a,b" }, /* Add Unsigned */ + { "sub", (ALUOP|SUBF), "c,a,b" }, /* SUB */ + { "subu", (ALUOP|SUBUF), "c,a,b" }, /* Sub Unsigned */ + { "mult", (ALUOP|MULTF), "c,a,b" }, /* MULTIPLY */ + { "multu", (ALUOP|MULTUF), "c,a,b" }, /* MULTIPLY Unsigned */ + { "div", (ALUOP|DIVF), "c,a,b" }, /* DIVIDE */ + { "divu", (ALUOP|DIVUF), "c,a,b" }, /* DIVIDE Unsigned */ + { "and", (ALUOP|ANDF), "c,a,b" }, /* AND */ + { "or", (ALUOP|ORF), "c,a,b" }, /* OR */ + { "xor", (ALUOP|XORF), "c,a,b" }, /* Exclusive OR */ + { "sll", (ALUOP|SLLF), "c,a,b" }, /* SHIFT LEFT LOGICAL */ + { "sra", (ALUOP|SRAF), "c,a,b" }, /* SHIFT RIGHT ARITHMETIC */ + { "srl", (ALUOP|SRLF), "c,a,b" }, /* SHIFT RIGHT LOGICAL */ + { "seq", (ALUOP|SEQF), "c,a,b" }, /* Set if equal */ + { "sne", (ALUOP|SNEF), "c,a,b" }, /* Set if not equal */ + { "slt", (ALUOP|SLTF), "c,a,b" }, /* Set if less */ + { "sgt", (ALUOP|SGTF), "c,a,b" }, /* Set if greater */ + { "sle", (ALUOP|SLEF), "c,a,b" }, /* Set if less or equal */ + { "sge", (ALUOP|SGEF), "c,a,b" }, /* Set if greater or equal */ + { "sequ", (ALUOP|SEQUF), "c,a,b" }, /* Set if equal unsigned */ + { "sneu", (ALUOP|SNEUF), "c,a,b" }, /* Set if not equal unsigned */ + { "sltu", (ALUOP|SLTUF), "c,a,b" }, /* Set if less unsigned */ + { "sgtu", (ALUOP|SGTUF), "c,a,b" }, /* Set if greater unsigned */ + { "sleu", (ALUOP|SLEUF), "c,a,b" }, /* Set if less or equal unsigned*/ + { "sgeu", (ALUOP|SGEUF), "c,a,b" }, /* Set if greater or equal */ + { "mvts", (ALUOP|MVTSF), "c,a" }, /* Move to special register */ + { "mvfs", (ALUOP|MVFSF), "c,a" }, /* Move from special register */ + { "bswap", (ALUOP|BSWAPF), "c,a,b" }, /* ??? Was not documented */ + { "lut", (ALUOP|LUTF), "c,a,b" }, /* ????? same as above */ + + /* Arithmetic and Logical Immediate I-TYPE instructions. */ + { "addi", ADDIOP, "b,a,I" }, /* Add Immediate */ + { "addui", ADDUIOP, "b,a,i" }, /* Add Usigned Immediate */ + { "subi", SUBIOP, "b,a,I" }, /* Sub Immediate */ + { "subui", SUBUIOP, "b,a,i" }, /* Sub Unsigned Immedated */ + { "andi", ANDIOP, "b,a,i" }, /* AND Immediate */ + { "ori", ORIOP, "b,a,i" }, /* OR Immediate */ + { "xori", XORIOP, "b,a,i" }, /* Exclusive OR Immediate */ + { "slli", SLLIOP, "b,a,i" }, /* SHIFT LEFT LOCICAL Immediate */ + { "srai", SRAIOP, "b,a,i" }, /* SHIFT RIGHT ARITH. Immediate */ + { "srli", SRLIOP, "b,a,i" }, /* SHIFT RIGHT LOGICAL Immediate*/ + { "seqi", SEQIOP, "b,a,i" }, /* Set if equal */ + { "snei", SNEIOP, "b,a,i" }, /* Set if not equal */ + { "slti", SLTIOP, "b,a,i" }, /* Set if less */ + { "sgti", SGTIOP, "b,a,i" }, /* Set if greater */ + { "slei", SLEIOP, "b,a,i" }, /* Set if less or equal */ + { "sgei", SGEIOP, "b,a,i" }, /* Set if greater or equal */ + { "sequi", SEQUIOP, "b,a,i" }, /* Set if equal */ + { "sneui", SNEUIOP, "b,a,i" }, /* Set if not equal */ + { "sltui", SLTUIOP, "b,a,i" }, /* Set if less */ + { "sgtui", SGTUIOP, "b,a,i" }, /* Set if greater */ + { "sleui", SLEUIOP, "b,a,i" }, /* Set if less or equal */ + { "sgeui", SGEUIOP, "b,a,i" }, /* Set if greater or equal */ + /* Macros for I type instructions. */ + { "mov", ADDIOP, "b,P" }, /* a move macro */ + { "movu", ADDUIOP, "b,P" }, /* a move macro, unsigned */ + +#if 0 + /* Move special. */ + { "mvts", MVTSOP, "b,a" }, /* Move From Integer to Special */ + { "mvfs", MVFSOP, "b,a" }, /* Move From Special to Integer */ +#endif + + /* Load high Immediate I-TYPE instruction. */ + { "lhi", LHIOP, "b,i" }, /* Load High Immediate */ + { "lui", LHIOP, "b,i" }, /* Load High Immediate */ + { "sethi", LHIOP, "b,i" }, /* Load High Immediate */ + + /* LOAD/STORE BYTE 8 bits I-TYPE. */ + { "lb", LBOP, "b,a,I" }, /* Load Byte */ + { "lbu", LBUOP, "b,a,I" }, /* Load Byte Unsigned */ + { "ldstbu", LSBUOP, "b,a,I" }, /* Load store Byte Unsigned */ + { "sb", SBOP, "b,a,I" }, /* Store Byte */ + + /* LOAD/STORE HALFWORD 16 bits. */ + { "lh", LHOP, "b,a,I" }, /* Load Halfword */ + { "lhu", LHUOP, "b,a,I" }, /* Load Halfword Unsigned */ + { "ldsthu", LSHUOP, "b,a,I" }, /* Load Store Halfword Unsigned */ + { "sh", SHOP, "b,a,I" }, /* Store Halfword */ + + /* LOAD/STORE WORD 32 bits. */ + { "lw", LWOP, "b,a,I" }, /* Load Word */ + { "sw", SWOP, "b,a,I" }, /* Store Word */ + { "ldstw", LSWOP, "b,a,I" }, /* Load Store Word */ + + /* Branch PC-relative, 16 bits offset. */ + { "beqz", BEQOP, "a,d" }, /* Branch if a == 0 */ + { "bnez", BNEOP, "a,d" }, /* Branch if a != 0 */ + { "beq", BEQOP, "a,d" }, /* Branch if a == 0 */ + { "bne", BNEOP, "a,d" }, /* Branch if a != 0 */ + + /* Jumps Trap and RFE J-TYPE. */ + { "j", JOP, "D" }, /* Jump, PC-relative 26 bits */ + { "jal", JALOP, "D" }, /* JAL, PC-relative 26 bits */ + { "break", BREAKOP, "D" }, /* break to OS */ + { "trap" , TRAPOP, "D" }, /* TRAP to OS */ + { "rfe", RFEOP, "N" }, /* Return From Exception */ + /* Macros. */ + { "call", JOP, "D" }, /* Jump, PC-relative 26 bits */ + + /* Jumps Trap and RFE I-TYPE. */ + { "jr", JROP, "a" }, /* Jump Register, Abs (32 bits) */ + { "jalr", JALROP, "a" }, /* JALR, Abs (32 bits) */ + /* Macros. */ + { "retr", JROP, "a" }, /* Jump Register, Abs (32 bits) */ + + { "", 0x0, "" } /* Dummy entry, not included in NUM_OPCODES. + This lets code examine entry i + 1 without + checking if we've run off the end of the table. */ + }; + +const unsigned int num_dlx_opcodes = (((sizeof dlx_opcodes) / (sizeof dlx_opcodes[0])) - 1); |