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Diffstat (limited to 'binutils-2.25/include/opcode/m88k.h')
| -rw-r--r-- | binutils-2.25/include/opcode/m88k.h | 455 |
1 files changed, 455 insertions, 0 deletions
diff --git a/binutils-2.25/include/opcode/m88k.h b/binutils-2.25/include/opcode/m88k.h new file mode 100644 index 00000000..739c0e90 --- /dev/null +++ b/binutils-2.25/include/opcode/m88k.h @@ -0,0 +1,455 @@ +/* Table of opcodes for the Motorola M88k family. + Copyright 1989, 1990, 1991, 1993, 2001, 2002, 2010 + 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 3 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., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ + +/* + * Disassembler Instruction Table + * + * The first field of the table is the opcode field. If an opcode + * is specified which has any non-opcode bits on, a system error + * will occur when the system attempts the install it into the + * instruction table. The second parameter is a pointer to the + * instruction mnemonic. Each operand is specified by offset, width, + * and type. The offset is the bit number of the least significant + * bit of the operand with bit 0 being the least significant bit of + * the instruction. The width is the number of bits used to specify + * the operand. The type specifies the output format to be used for + * the operand. The valid formats are: register, register indirect, + * hex constant, and bit field specification. The last field is a + * pointer to the next instruction in the linked list. These pointers + * are initialized by init_disasm(). + * + * Revision History + * + * Revision 1.0 11/08/85 Creation date + * 1.1 02/05/86 Updated instruction mnemonic table MD + * 1.2 06/16/86 Updated SIM_FLAGS for floating point + * 1.3 09/20/86 Updated for new encoding + * 05/11/89 R. Trawick adapted from Motorola disassembler + */ + +#include <stdio.h> + +/* Define the number of bits in the primary opcode field of the instruction, + the destination field, the source 1 and source 2 fields. */ + +/* Size of opcode field. */ +#define OP 8 + +/* Size of destination. */ +#define DEST 6 + +/* Size of source1. */ +#define SOURCE1 6 + +/* Size of source2. */ +#define SOURCE2 6 + +/* Number of registers. */ +#define REGs 32 + +/* Type definitions. */ + +typedef unsigned int UINT; +#define WORD long +#define FLAG unsigned +#define STATE short + +/* The next four equates define the priorities that the various classes + * of instructions have regarding writing results back into registers and + * signalling exceptions. */ + +/* PMEM is also defined in <sys/param.h> on Delta 88's. Sigh! */ +#undef PMEM + +/* Integer priority. */ +#define PINT 0 + +/* Floating point priority. */ +#define PFLT 1 + +/* Memory priority. */ +#define PMEM 2 + +/* Not applicable, instruction doesn't write to regs. */ +#define NA 3 + +/* Highest of these priorities. */ +#define HIPRI 3 + +/* The instruction registers are an artificial mechanism to speed up + * simulator execution. In the real processor, an instruction register + * is 32 bits wide. In the simulator, the 32 bit instruction is kept in + * a structure field called rawop, and the instruction is partially decoded, + * and split into various fields and flags which make up the other fields + * of the structure. + * The partial decode is done when the instructions are initially loaded + * into simulator memory. The simulator code memory is not an array of + * 32 bit words, but is an array of instruction register structures. + * Yes this wastes memory, but it executes much quicker. + */ + +struct IR_FIELDS +{ + unsigned op:OP, + dest: DEST, + src1: SOURCE1, + src2: SOURCE2; + int ltncy, + extime, + /* Writeback priority. */ + wb_pri; + /* Immediate size. */ + unsigned imm_flags:2, + /* Register source 1 used. */ + rs1_used:1, + /* Register source 2 used. */ + rs2_used:1, + /* Register source/dest. used. */ + rsd_used:1, + /* Complement. */ + c_flag:1, + /* Upper half word. */ + u_flag:1, + /* Execute next. */ + n_flag:1, + /* Uses writeback slot. */ + wb_flag:1, + /* Dest size. */ + dest_64:1, + /* Source 1 size. */ + s1_64:1, + /* Source 2 size. */ + s2_64:1, + scale_flag:1, + /* Scaled register. */ + brk_flg:1; +}; + +struct mem_segs +{ + /* Pointer (returned by calloc) to segment. */ + struct mem_wrd *seg; + + /* Base load address from file headers. */ + unsigned long baseaddr; + + /* Ending address of segment. */ + unsigned long endaddr; + + /* Segment control flags (none defined). */ + int flags; +}; + +#define MAXSEGS (10) /* max number of segment allowed */ +#define MEMSEGSIZE (sizeof(struct mem_segs))/* size of mem_segs structure */ + +#if 0 +#define BRK_RD (0x01) /* break on memory read */ +#define BRK_WR (0x02) /* break on memory write */ +#define BRK_EXEC (0x04) /* break on execution */ +#define BRK_CNT (0x08) /* break on terminal count */ +#endif + +struct mem_wrd +{ + /* Simulator instruction break down. */ + struct IR_FIELDS opcode; + union { + /* Memory element break down. */ + unsigned long l; + unsigned short s[2]; + unsigned char c[4]; + } mem; +}; + +/* Size of each 32 bit memory model. */ +#define MEMWRDSIZE (sizeof (struct mem_wrd)) + +extern struct mem_segs memory[]; +extern struct PROCESSOR m78000; + +struct PROCESSOR +{ + unsigned WORD + /* Execute instruction pointer. */ + ip, + /* Vector base register. */ + vbr, + /* Processor status register. */ + psr; + + /* Source 1. */ + WORD S1bus, + /* Source 2. */ + S2bus, + /* Destination. */ + Dbus, + /* Data address bus. */ + DAbus, + ALU, + /* Data registers. */ + Regs[REGs], + /* Max clocks before reg is available. */ + time_left[REGs], + /* Writeback priority of reg. */ + wb_pri[REGs], + /* Integer unit control regs. */ + SFU0_regs[REGs], + /* Floating point control regs. */ + SFU1_regs[REGs], + Scoreboard[REGs], + Vbr; + unsigned WORD scoreboard, + Psw, + Tpsw; + /* Waiting for a jump instruction. */ + FLAG jump_pending:1; +}; + +/* Size of immediate field. */ + +#define i26bit 1 +#define i16bit 2 +#define i10bit 3 + +/* Definitions for fields in psr. */ + +#define psr_mode 31 +#define psr_rbo 30 +#define psr_ser 29 +#define psr_carry 28 +#define psr_sf7m 11 +#define psr_sf6m 10 +#define psr_sf5m 9 +#define psr_sf4m 8 +#define psr_sf3m 7 +#define psr_sf2m 6 +#define psr_sf1m 5 +#define psr_mam 4 +#define psr_inm 3 +#define psr_exm 2 +#define psr_trm 1 +#define psr_ovfm 0 + +/* The 1 clock operations. */ + +#define ADDU 1 +#define ADDC 2 +#define ADDUC 3 +#define ADD 4 + +#define SUBU ADD+1 +#define SUBB ADD+2 +#define SUBUB ADD+3 +#define SUB ADD+4 + +#define AND_ ADD+5 +#define OR ADD+6 +#define XOR ADD+7 +#define CMP ADD+8 + +/* Loads. */ + +#define LDAB CMP+1 +#define LDAH CMP+2 +#define LDA CMP+3 +#define LDAD CMP+4 + +#define LDB LDAD+1 +#define LDH LDAD+2 +#define LD LDAD+3 +#define LDD LDAD+4 +#define LDBU LDAD+5 +#define LDHU LDAD+6 + +/* Stores. */ + +#define STB LDHU+1 +#define STH LDHU+2 +#define ST LDHU+3 +#define STD LDHU+4 + +/* Exchange. */ + +#define XMEMBU LDHU+5 +#define XMEM LDHU+6 + +/* Branches. */ + +#define JSR STD+1 +#define BSR STD+2 +#define BR STD+3 +#define JMP STD+4 +#define BB1 STD+5 +#define BB0 STD+6 +#define RTN STD+7 +#define BCND STD+8 + +/* Traps. */ + +#define TB1 BCND+1 +#define TB0 BCND+2 +#define TCND BCND+3 +#define RTE BCND+4 +#define TBND BCND+5 + +/* Misc. */ + +#define MUL TBND + 1 +#define DIV MUL +2 +#define DIVU MUL +3 +#define MASK MUL +4 +#define FF0 MUL +5 +#define FF1 MUL +6 +#define CLR MUL +7 +#define SET MUL +8 +#define EXT MUL +9 +#define EXTU MUL +10 +#define MAK MUL +11 +#define ROT MUL +12 + +/* Control register manipulations. */ + +#define LDCR ROT +1 +#define STCR ROT +2 +#define XCR ROT +3 + +#define FLDCR ROT +4 +#define FSTCR ROT +5 +#define FXCR ROT +6 + +#define NOP XCR +1 + +/* Floating point instructions. */ + +#define FADD NOP +1 +#define FSUB NOP +2 +#define FMUL NOP +3 +#define FDIV NOP +4 +#define FSQRT NOP +5 +#define FCMP NOP +6 +#define FIP NOP +7 +#define FLT NOP +8 +#define INT NOP +9 +#define NINT NOP +10 +#define TRNC NOP +11 +#define FLDC NOP +12 +#define FSTC NOP +13 +#define FXC NOP +14 + +#define UEXT(src,off,wid) \ + ((((unsigned int)(src)) >> (off)) & ((1 << (wid)) - 1)) + +#define SEXT(src,off,wid) \ + (((((int)(src))<<(32 - ((off) + (wid)))) >>(32 - (wid))) ) + +#define MAKE(src,off,wid) \ + ((((unsigned int)(src)) & ((1 << (wid)) - 1)) << (off)) + +#define opword(n) (unsigned long) (memaddr->mem.l) + +/* Constants and masks. */ + +#define SFU0 0x80000000 +#define SFU1 0x84000000 +#define SFU7 0x9c000000 +#define RRI10 0xf0000000 +#define RRR 0xf4000000 +#define SFUMASK 0xfc00ffe0 +#define RRRMASK 0xfc00ffe0 +#define RRI10MASK 0xfc00fc00 +#define DEFMASK 0xfc000000 +#define CTRL 0x0000f000 +#define CTRLMASK 0xfc00f800 + +/* Operands types. */ + +enum operand_type +{ + HEX = 1, + REG = 2, + CONT = 3, + IND = 3, + BF = 4, + /* Scaled register. */ + REGSC = 5, + /* Control register. */ + CRREG = 6, + /* Floating point control register. */ + FCRREG = 7, + PCREL = 8, + CONDMASK = 9, + /* Extended register. */ + XREG = 10, + /* Decimal. */ + DEC = 11 +}; + +/* Hashing specification. */ + +#define HASHVAL 79 + +/* Structure templates. */ + +typedef struct +{ + unsigned int offset; + unsigned int width; + enum operand_type type; +} OPSPEC; + +struct SIM_FLAGS +{ + int ltncy, /* latency (max number of clocks needed to execute). */ + extime, /* execution time (min number of clocks needed to execute). */ + wb_pri; /* writeback slot priority. */ + unsigned op:OP, /* simulator version of opcode. */ + imm_flags:2, /* 10,16 or 26 bit immediate flags. */ + rs1_used:1, /* register source 1 used. */ + rs2_used:1, /* register source 2 used. */ + rsd_used:1, /* register source/dest used. */ + c_flag:1, /* complement. */ + u_flag:1, /* upper half word. */ + n_flag:1, /* execute next. */ + wb_flag:1, /* uses writeback slot. */ + dest_64:1, /* double precision dest. */ + s1_64:1, /* double precision source 1. */ + s2_64:1, /* double precision source 2. */ + scale_flag:1; /* register is scaled. */ +}; + +typedef struct INSTRUCTAB { + unsigned int opcode; + char *mnemonic; + OPSPEC op1,op2,op3; + struct SIM_FLAGS flgs; +} INSTAB; + + +#define NO_OPERAND {0,0,0} + +extern const INSTAB instructions[]; + +/* + * Local Variables: + * fill-column: 131 + * End: + */ |