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This emulates the classic LINC. The design was settled in 1965, increasing memory to 2048 words, and adding a Z register, an overflow flag, and an interrupt facility.
74 lines
2.7 KiB
C
74 lines
2.7 KiB
C
/* linc_defs.h: LINC simulator definitions
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Copyright (c) 2025, Lars Brinkhoff
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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LARS BRINKHOFF BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of Lars Brinkhoff shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from Lars Brinkhoff.
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17-Sept-25 LB New simulator.
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*/
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#ifndef LINC_DEFS_H_
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#define LINC_DEFS_H_ 0
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#include "sim_defs.h"
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#define STOP_HALT 1
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#define STOP_IBKPT 2
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#define STOP_RBKPT 3
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#define STOP_WBKPT 3
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#define WMASK 07777 /* Full word. */
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#define HMASK 04000 /* H bit; half word select. */
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#define AMASK 03777 /* Full memory address. */
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#define XMASK 01777 /* X part; low memory address. */
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#define DMASK 00777 /* Display coordinate. */
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#define TMASK 00777 /* Tape block. */
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#define LMASK 07700 /* Left half word. */
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#define RMASK 00077 /* Right half word; character. */
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#define IMASK 00020 /* Index bit. */
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#define UMASK 00010 /* Tape unit bit. */
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#define BMASK 00017 /* Beta; index register. */
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#define MEMSIZE 2048
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extern REG cpu_reg[];
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extern uint16 M[];
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extern DEVICE cpu_dev;
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extern DEVICE crt_dev;
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extern DEVICE dpy_dev;
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extern DEVICE kbd_dev;
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extern DEVICE tape_dev;
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extern DEVICE tty_dev;
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extern t_bool build_dev_tab(void);
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extern t_stat cpu_do(void);
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extern void dpy_dis(uint16 h, uint16 x, uint16 y);
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extern void crt_point (uint16 x, uint16 y);
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extern void crt_toggle_fullscreen(void);
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extern uint16 kbd_key(uint16 wait);
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extern int kbd_struck(void);
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extern void tape_op(void);
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extern t_stat tape_metadata(FILE *, uint16 *, int16 *, int16 *);
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#endif /* LINC_DEFS_H_ */
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