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Diffstat (limited to 'kernel/arch/powerpc/xmon/ppc.h')
| -rw-r--r-- | kernel/arch/powerpc/xmon/ppc.h | 322 |
1 files changed, 322 insertions, 0 deletions
diff --git a/kernel/arch/powerpc/xmon/ppc.h b/kernel/arch/powerpc/xmon/ppc.h new file mode 100644 index 000000000..110df9635 --- /dev/null +++ b/kernel/arch/powerpc/xmon/ppc.h @@ -0,0 +1,322 @@ +/* ppc.h -- Header file for PowerPC opcode table + Copyright 1994, 1995, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 + Free Software Foundation, Inc. + Written by Ian Lance Taylor, Cygnus Support + +This file is part of GDB, GAS, and the GNU binutils. + +GDB, GAS, and the GNU binutils are free software; you can redistribute +them and/or modify them under the terms of the GNU General Public +License as published by the Free Software Foundation; either version +1, or (at your option) any later version. + +GDB, GAS, and the GNU binutils are distributed in the hope that they +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 file; see the file COPYING. If not, write to the Free +Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ + +#ifndef PPC_H +#define PPC_H + +/* The opcode table is an array of struct powerpc_opcode. */ + +struct powerpc_opcode +{ + /* The opcode name. */ + const char *name; + + /* The opcode itself. Those bits which will be filled in with + operands are zeroes. */ + unsigned long opcode; + + /* The opcode mask. This is used by the disassembler. This is a + mask containing ones indicating those bits which must match the + opcode field, and zeroes indicating those bits which need not + match (and are presumably filled in by operands). */ + unsigned long mask; + + /* One bit flags for the opcode. These are used to indicate which + specific processors support the instructions. The defined values + are listed below. */ + unsigned long flags; + + /* An array of operand codes. Each code is an index into the + operand table. They appear in the order which the operands must + appear in assembly code, and are terminated by a zero. */ + unsigned char operands[8]; +}; + +/* The table itself is sorted by major opcode number, and is otherwise + in the order in which the disassembler should consider + instructions. */ +extern const struct powerpc_opcode powerpc_opcodes[]; +extern const int powerpc_num_opcodes; + +/* Values defined for the flags field of a struct powerpc_opcode. */ + +/* Opcode is defined for the PowerPC architecture. */ +#define PPC_OPCODE_PPC 1 + +/* Opcode is defined for the POWER (RS/6000) architecture. */ +#define PPC_OPCODE_POWER 2 + +/* Opcode is defined for the POWER2 (Rios 2) architecture. */ +#define PPC_OPCODE_POWER2 4 + +/* Opcode is only defined on 32 bit architectures. */ +#define PPC_OPCODE_32 8 + +/* Opcode is only defined on 64 bit architectures. */ +#define PPC_OPCODE_64 0x10 + +/* Opcode is supported by the Motorola PowerPC 601 processor. The 601 + is assumed to support all PowerPC (PPC_OPCODE_PPC) instructions, + but it also supports many additional POWER instructions. */ +#define PPC_OPCODE_601 0x20 + +/* Opcode is supported in both the Power and PowerPC architectures + (ie, compiler's -mcpu=common or assembler's -mcom). */ +#define PPC_OPCODE_COMMON 0x40 + +/* Opcode is supported for any Power or PowerPC platform (this is + for the assembler's -many option, and it eliminates duplicates). */ +#define PPC_OPCODE_ANY 0x80 + +/* Opcode is supported as part of the 64-bit bridge. */ +#define PPC_OPCODE_64_BRIDGE 0x100 + +/* Opcode is supported by Altivec Vector Unit */ +#define PPC_OPCODE_ALTIVEC 0x200 + +/* Opcode is supported by PowerPC 403 processor. */ +#define PPC_OPCODE_403 0x400 + +/* Opcode is supported by PowerPC BookE processor. */ +#define PPC_OPCODE_BOOKE 0x800 + +/* Opcode is only supported by 64-bit PowerPC BookE processor. */ +#define PPC_OPCODE_BOOKE64 0x1000 + +/* Opcode is supported by PowerPC 440 processor. */ +#define PPC_OPCODE_440 0x2000 + +/* Opcode is only supported by Power4 architecture. */ +#define PPC_OPCODE_POWER4 0x4000 + +/* Opcode isn't supported by Power4 architecture. */ +#define PPC_OPCODE_NOPOWER4 0x8000 + +/* Opcode is only supported by POWERPC Classic architecture. */ +#define PPC_OPCODE_CLASSIC 0x10000 + +/* Opcode is only supported by e500x2 Core. */ +#define PPC_OPCODE_SPE 0x20000 + +/* Opcode is supported by e500x2 Integer select APU. */ +#define PPC_OPCODE_ISEL 0x40000 + +/* Opcode is an e500 SPE floating point instruction. */ +#define PPC_OPCODE_EFS 0x80000 + +/* Opcode is supported by branch locking APU. */ +#define PPC_OPCODE_BRLOCK 0x100000 + +/* Opcode is supported by performance monitor APU. */ +#define PPC_OPCODE_PMR 0x200000 + +/* Opcode is supported by cache locking APU. */ +#define PPC_OPCODE_CACHELCK 0x400000 + +/* Opcode is supported by machine check APU. */ +#define PPC_OPCODE_RFMCI 0x800000 + +/* Opcode is only supported by Power5 architecture. */ +#define PPC_OPCODE_POWER5 0x1000000 + +/* Opcode is supported by PowerPC e300 family. */ +#define PPC_OPCODE_E300 0x2000000 + +/* Opcode is only supported by Power6 architecture. */ +#define PPC_OPCODE_POWER6 0x4000000 + +/* Opcode is only supported by PowerPC Cell family. */ +#define PPC_OPCODE_CELL 0x8000000 + +/* A macro to extract the major opcode from an instruction. */ +#define PPC_OP(i) (((i) >> 26) & 0x3f) + +/* The operands table is an array of struct powerpc_operand. */ + +struct powerpc_operand +{ + /* The number of bits in the operand. */ + int bits; + + /* How far the operand is left shifted in the instruction. */ + int shift; + + /* Insertion function. This is used by the assembler. To insert an + operand value into an instruction, check this field. + + If it is NULL, execute + i |= (op & ((1 << o->bits) - 1)) << o->shift; + (i is the instruction which we are filling in, o is a pointer to + this structure, and op is the opcode value; this assumes twos + complement arithmetic). + + If this field is not NULL, then simply call it with the + instruction and the operand value. It will return the new value + of the instruction. If the ERRMSG argument is not NULL, then if + the operand value is illegal, *ERRMSG will be set to a warning + string (the operand will be inserted in any case). If the + operand value is legal, *ERRMSG will be unchanged (most operands + can accept any value). */ + unsigned long (*insert) + (unsigned long instruction, long op, int dialect, const char **errmsg); + + /* Extraction function. This is used by the disassembler. To + extract this operand type from an instruction, check this field. + + If it is NULL, compute + op = ((i) >> o->shift) & ((1 << o->bits) - 1); + if ((o->flags & PPC_OPERAND_SIGNED) != 0 + && (op & (1 << (o->bits - 1))) != 0) + op -= 1 << o->bits; + (i is the instruction, o is a pointer to this structure, and op + is the result; this assumes twos complement arithmetic). + + If this field is not NULL, then simply call it with the + instruction value. It will return the value of the operand. If + the INVALID argument is not NULL, *INVALID will be set to + non-zero if this operand type can not actually be extracted from + this operand (i.e., the instruction does not match). If the + operand is valid, *INVALID will not be changed. */ + long (*extract) (unsigned long instruction, int dialect, int *invalid); + + /* One bit syntax flags. */ + unsigned long flags; +}; + +/* Elements in the table are retrieved by indexing with values from + the operands field of the powerpc_opcodes table. */ + +extern const struct powerpc_operand powerpc_operands[]; + +/* Values defined for the flags field of a struct powerpc_operand. */ + +/* This operand takes signed values. */ +#define PPC_OPERAND_SIGNED (01) + +/* This operand takes signed values, but also accepts a full positive + range of values when running in 32 bit mode. That is, if bits is + 16, it takes any value from -0x8000 to 0xffff. In 64 bit mode, + this flag is ignored. */ +#define PPC_OPERAND_SIGNOPT (02) + +/* This operand does not actually exist in the assembler input. This + is used to support extended mnemonics such as mr, for which two + operands fields are identical. The assembler should call the + insert function with any op value. The disassembler should call + the extract function, ignore the return value, and check the value + placed in the valid argument. */ +#define PPC_OPERAND_FAKE (04) + +/* The next operand should be wrapped in parentheses rather than + separated from this one by a comma. This is used for the load and + store instructions which want their operands to look like + reg,displacement(reg) + */ +#define PPC_OPERAND_PARENS (010) + +/* This operand may use the symbolic names for the CR fields, which + are + lt 0 gt 1 eq 2 so 3 un 3 + cr0 0 cr1 1 cr2 2 cr3 3 + cr4 4 cr5 5 cr6 6 cr7 7 + These may be combined arithmetically, as in cr2*4+gt. These are + only supported on the PowerPC, not the POWER. */ +#define PPC_OPERAND_CR (020) + +/* This operand names a register. The disassembler uses this to print + register names with a leading 'r'. */ +#define PPC_OPERAND_GPR (040) + +/* Like PPC_OPERAND_GPR, but don't print a leading 'r' for r0. */ +#define PPC_OPERAND_GPR_0 (0100) + +/* This operand names a floating point register. The disassembler + prints these with a leading 'f'. */ +#define PPC_OPERAND_FPR (0200) + +/* This operand is a relative branch displacement. The disassembler + prints these symbolically if possible. */ +#define PPC_OPERAND_RELATIVE (0400) + +/* This operand is an absolute branch address. The disassembler + prints these symbolically if possible. */ +#define PPC_OPERAND_ABSOLUTE (01000) + +/* This operand is optional, and is zero if omitted. This is used for + example, in the optional BF field in the comparison instructions. The + assembler must count the number of operands remaining on the line, + and the number of operands remaining for the opcode, and decide + whether this operand is present or not. The disassembler should + print this operand out only if it is not zero. */ +#define PPC_OPERAND_OPTIONAL (02000) + +/* This flag is only used with PPC_OPERAND_OPTIONAL. If this operand + is omitted, then for the next operand use this operand value plus + 1, ignoring the next operand field for the opcode. This wretched + hack is needed because the Power rotate instructions can take + either 4 or 5 operands. The disassembler should print this operand + out regardless of the PPC_OPERAND_OPTIONAL field. */ +#define PPC_OPERAND_NEXT (04000) + +/* This operand should be regarded as a negative number for the + purposes of overflow checking (i.e., the normal most negative + number is disallowed and one more than the normal most positive + number is allowed). This flag will only be set for a signed + operand. */ +#define PPC_OPERAND_NEGATIVE (010000) + +/* This operand names a vector unit register. The disassembler + prints these with a leading 'v'. */ +#define PPC_OPERAND_VR (020000) + +/* This operand is for the DS field in a DS form instruction. */ +#define PPC_OPERAND_DS (040000) + +/* This operand is for the DQ field in a DQ form instruction. */ +#define PPC_OPERAND_DQ (0100000) + +/* The POWER and PowerPC assemblers use a few macros. We keep them + with the operands table for simplicity. The macro table is an + array of struct powerpc_macro. */ + +struct powerpc_macro +{ + /* The macro name. */ + const char *name; + + /* The number of operands the macro takes. */ + unsigned int operands; + + /* One bit flags for the opcode. These are used to indicate which + specific processors support the instructions. The values are the + same as those for the struct powerpc_opcode flags field. */ + unsigned long flags; + + /* A format string to turn the macro into a normal instruction. + Each %N in the string is replaced with operand number N (zero + based). */ + const char *format; +}; + +extern const struct powerpc_macro powerpc_macros[]; +extern const int powerpc_num_macros; + +#endif /* PPC_H */ |