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Last change
on this file since 73 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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*
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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: control.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 CONTROL_H
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| 9 | #define CONTROL_H
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| 10 |
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| 11 | #include "sim.h"
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| 12 | #include "alu.h"
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| 13 | #include "memory.h"
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| 14 | #include "imm.h"
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| 15 | #include "constant.h"
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| 16 | #include "datapath.h"
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| 17 |
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| 18 |
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| 19 | typedef enum { NEXT, UNCOND, MEMBUSY, DECODE1, DECODE2, DECODE3,
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| 20 | ZEROVALUE, NEGVALUE, RTYPEIR } control_cond_t;
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| 21 |
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| 22 |
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| 23 | /* XXX: Not that effient, might be the use of bitfields */
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| 24 | typedef struct {
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| 25 | address_t address;
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| 26 | control_t control;
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| 27 | control_cond_t cond;
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| 28 | micro_address_t jump;
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| 29 | } microcode_t;
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| 30 |
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| 31 | typedef struct {
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| 32 | uint8_t ocode;
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| 33 | uint8_t fcode;
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| 34 | micro_address_t target;
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| 35 | } decode_t;
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| 36 |
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| 37 |
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| 38 | micro_address_t mpc;
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| 39 | void set_signals();
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| 40 | void find_new_mPC();
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| 41 | void control_init();
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| 42 |
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| 43 | #endif
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