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136 lines
4.8 KiB
C
136 lines
4.8 KiB
C
/* PDP-10 opcde list.
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Copyright (C) 2000 Free Software Foundation, Inc.
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This file is part of GDB and GAS.
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GDB and GAS are free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 1, or (at your option)
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any later version.
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GDB and GAS are distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GDB or GAS; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/*
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* PDP-10 instruction types.
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*
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* Most PDP-10 instructions have this format:
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*
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* +---------+----+-+----+------------------+
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* | opcode | A |I| X | Y |
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* +---------+----+-+----+------------------+
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* 9 bits 4 1 4 18 bits
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*
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* A usually specifies the accumulator.
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* I indicates indirect addressing.
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* X specifies the index register.
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* Y specifies the address.
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*
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* I, X, and Y is used together to calculate E, the effective address.
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*
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* PDP10_A_OPCODE means that A is used together with the opcode field
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* to specify the operation.
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*
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* PDP10_A_UNUSED means that A is unused and should be set to zero.
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*
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* PDP10_E_UNUSED means that X, I, and Y are unused and should be set to zero.
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*
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* PDP10_IO means that the instruction format looks like this:
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*
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* +---+-------+---+-+----+------------------+
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* |op1| device|op2|I| X | Y |
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* +---+-------+---+-+----+------------------+
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* 3 7 bits 3 1 4 18 bits
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*
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* op1 and op2 is used together to specify the operation.
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*
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* I, X, and Y as above.
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*
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* PDP10_EXTEND means that this the first word of a two-word
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* instruction. The second word is located at the effective address,
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* E, of the first instruction word.
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*/
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#define PDP10_BASIC 0000
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#define PDP10_A_OPCODE 0001
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#define PDP10_A_UNUSED 0002
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#define PDP10_E_UNUSED 0010
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#define PDP10_A_E_UNUSED (PDP10_A_UNUSED | PDP10_E_UNUSED)
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#define PDP10_IO 0020
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#define PDP10_EXTEND 0040
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/*
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* PDP-10 CPU models.
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*/
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#define PDP10_NONE 0x000000
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#define PDP6_166 0x000001 /* DEC PDP-6 Type 166 Arithmetic Processor */
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#define PDP10_KA10 0x000002 /* DEC PDP-10 KA10 */
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#define PDP10_KA10_ITS 0x000004 /* DEC PDP-10 KA10, modifications for ITS */
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#define PDP10_KI10 0x000008 /* DEC PDP-10 KI10 */
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#define PDP10_KL10 0x000010 /* DEC PDP-10 KL10 */
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#define PDP10_KL10_ITS 0x000020 /* DEC PDP-10 KL10, ITS microcode */
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#define PDP10_KL10_271 0x000040 /* DEC PDP-10 KL10, microcode version >= 271 */
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#define PDP10_KS10 0x000080 /* DEC PDP-10 KS10 */
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#define PDP10_KS10_ITS 0x000100 /* DEC PDP-10 KS10, ITS microcode */
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#define PDP10_MAXC 0x000200 /* Xerox PARC MAXC */
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#define PDP10_F1 0x000400 /* Foonly F-1 */
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#define PDP10_F2 0x000800 /* Foonly F-2 */
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#define PDP10_F3 0x001000 /* Foonly F-3 */
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#define PDP10_F4 0x002000 /* Foonly F-4 */
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#define PDP10_F5 0x004000 /* Foonly F-5 */
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#define PDP10_SC20 0x008000 /* System Concepts SC-20 */
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#define PDP10_SC25 0x010000 /* System Concepts SC-25 */
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#define PDP10_SC30M 0x020000 /* System Concepts SC-30M */
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#define PDP10_SC40 0x040000 /* System Concepts SC-40 */
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#define PDP10_XKL1 0x080000 /* XKL TOAD-1 XKL-1 */
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#define PDP10_ALL 0xffffff
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/* Useful combinations of the above. */
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#define PDP6_166_to_PDP10_KI10 (PDP6_166 | PDP10_KA10_to_KI10)
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#define PDP10_KA10any (PDP10_KA10 | PDP10_KA10_ITS)
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#define PDP10_KA10_to_KI10 (PDP10_KA10 | PDP10_KI10)
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#define PDP10_KA10_to_KL10 (PDP10_KA10_to_KI10 | PDP10_KL10any)
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#define PDP10_KI10_to_KL10 (PDP10_KI10 | PDP10_KL10any)
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#define PDP10_KA10up (PDP10_KA10any | PDP10_KI10up)
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#define PDP10_KI10up (PDP10_KI10 | PDP10_KL10up)
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#define PDP10_KL10any (PDP10_KL10 | PDP10_KL10_ITS | \
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PDP10_KL10_271up)
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#define PDP10_KL10up (PDP10_KL10 | PDP10_KL10_ITS | \
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PDP10_KL10_271up | PDP10_KS10)
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#define PDP10_KL10_271up (PDP10_KL10_271 | PDP10_SC20up | PDP10_XKL1)
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#define PDP10_KS10any (PDP10_KS10 | PDP10_KS10_ITS)
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#define PDP10_not_KS10 (PDP10_ALL & ~(PDP10_KS10any))
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#define PDP10_SC20_to_SC25 (PDP10_SC20 | PDP10_SC25)
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#define PDP10_SC20up (PDP10_SC20_to_SC25 | PDP10_SC30M | PDP10_SC40)
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#define PDP10_ITS (PDP10_KA10_ITS | PDP10_KL10_ITS | \
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PDP10_KS10_ITS)
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struct pdp10_instruction
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{
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const char *name;
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int opcode;
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int type;
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int model;
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};
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struct pdp10_device
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{
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const char *name;
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int number;
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int model;
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};
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extern const struct pdp10_instruction pdp10_instruction[];
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extern const struct pdp10_device pdp10_device[];
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extern const struct pdp10_instruction pdp10_alias[];
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extern const int pdp10_num_instructions, pdp10_num_devices, pdp10_num_aliases;
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/* end of pdp10.h */
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