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Last change
on this file since 331 was 2, checked in by Rick van der Zwet, 15 years ago |
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Initial import of data of old repository ('data') worth keeping (e.g. tracking
means of URL access statistics)
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Property svn:executable
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File size:
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| 1 | /* Author : Rick van der Zwet
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| 2 | * S-number : 0433373
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| 3 | * Version : $Id: memory.h 363 2007-12-03 06:07:31Z rick $
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| 4 | * Copyright : FreeBSD Licence
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| 5 | * Description : Memory unit header
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| 6 | */
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| 7 |
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| 8 | #ifndef MEMORY_H
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| 9 | #define MEMORY_H
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| 10 |
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| 11 | #include "sim.h"
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| 12 |
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| 13 | /* Signal */
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| 14 | boolean mem_busy;
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| 15 |
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| 16 | union memword_t {
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| 17 | byte byte[4];
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| 18 | halfword halfword[2];
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| 19 | word fullword;
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| 20 | };
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| 21 |
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| 22 | /* Control signal */
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| 23 | typedef enum {
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| 24 | MEM_STALLED,
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| 25 | READ,
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| 26 | WRITE_BYTE,
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| 27 | WRITE_HALFWORD,
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| 28 | WRITE_WORD
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| 29 | } mem_control_t;
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| 30 |
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| 31 | void readmem();
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| 32 | void writemem();
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| 33 | word mem_operation(const word address, const word value,
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| 34 | const mem_control_t action);
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| 35 | #endif
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