Last change
on this file since 212 was 2, checked in by Rick van der Zwet, 15 years ago |
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[2] | 1 | /* Author : Rick van der Zwet
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| 2 | * S-number : 0433373
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| 3 | * Version : $Id: alu.h 365 2007-12-03 08:54:04Z rick $
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| 4 | * Copyright : FreeBSD Licence
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| 5 | * Description : ALU unit header
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| 6 | */
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| 7 |
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| 8 | #ifndef ALU_H
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| 9 | #define ALU_H
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| 10 |
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| 11 | #include "sim.h"
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| 12 |
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| 13 | /* Signals */
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| 14 | boolean zero;
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| 15 | boolean negative;
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| 16 |
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| 17 | typedef enum {
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| 18 | ALU_STALLED,
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| 19 | ADD,
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| 20 | AND,
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| 21 | NOR,
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| 22 | OR,
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| 23 | PassS1,
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| 24 | PassS2,
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| 25 | SLL,
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| 26 | SRA,
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| 27 | SRL,
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| 28 | SUB,
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| 29 | XOR
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| 30 | } alu_control_t;
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| 31 |
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| 32 | word alu_sra(const word in1, const word in2);
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| 33 | word alu(word in1, word in2, alu_control_t action);
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| 34 |
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| 35 | #endif
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