OpenCores
URL https://opencores.org/ocsvn/zipcpu/zipcpu/trunk

Subversion Repositories zipcpu

[/] [zipcpu/] [trunk/] [sw/] [zasm/] [zopcodes.h] - Blame information for rev 2

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 2 dgisselq
////////////////////////////////////////////////////////////////////////////////
2
//
3
// Filename:    zopcodes.h
4
//
5
// Project:     Zip CPU -- a small, lightweight, RISC CPU core
6
//
7
// Purpose:     A structure defined to keep track of our various opcodes and
8
//              some of their shortcut synonyms.
9
//
10
// Creator:     Dan Gisselquist, Ph.D.
11
//              Gisselquist Tecnology, LLC
12
//
13
////////////////////////////////////////////////////////////////////////////////
14
//
15
// Copyright (C) 2015, Gisselquist Technology, LLC
16
//
17
// This program is free software (firmware): you can redistribute it and/or
18
// modify it under the terms of  the GNU General Public License as published
19
// by the Free Software Foundation, either version 3 of the License, or (at
20
// your option) any later version.
21
//
22
// This program is distributed in the hope that it will be useful, but WITHOUT
23
// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
24
// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
25
// for more details.
26
//
27
// You should have received a copy of the GNU General Public License along
28
// with this program.  (It's in the $(ROOT)/doc directory, run make with no
29
// target there if the PDF file isn't present.)  If not, see
30
// <http://www.gnu.org/licenses/> for a copy.
31
//
32
// License:     GPL, v3, as defined and found on www.gnu.org,
33
//              http://www.gnu.org/licenses/gpl.html
34
//
35
//
36
////////////////////////////////////////////////////////////////////////////////
37
#ifndef ZOPCODES_H
38
#define ZOPCODES_H
39
 
40
#define OPUNUSED        -1
41
#define ISUSEROP(A)     ((a&(~0x0f))==0x000)
42
#define ISSUPROP(A)     ((a&(~0x0f))==0x010)
43
#define ISLCLROP(A)     ((a&(~0x0f))==0x020)
44
#define BITFIELD(LN,MN) (((LN&0x0ff)<<8)+(MN&0x0ff))
45
#define REGFIELD(MN)    (0x00000400 +(MN&0x0ff))
46
#define URGFIELD(MN)    (0x0100400 +(MN&0x0ff))
47
#define SRGFIELD(MN)    (0x0200400 +(MN&0x0ff))
48
#define IMMFIELD(LN,MN) (0x40000000 + (((LN&0x0ff)<<8)+(MN&0x0ff))) // Sgn extnd
49
// #define      REGVAL(V)       ((V & 0x0f)+0x020)
50
 
51
typedef unsigned int    ZIPI;
52
 
53
typedef struct {
54
        char    s_opstr[8];
55
        ZIPI    s_mask, s_val;
56
        int     s_result, s_ra, s_rb, s_i, s_cf;
57
} ZOPCODE;
58
 
59
extern  const ZOPCODE   zoplist[];
60
extern  const int       nzoplist;
61
 
62
// Disassemble an opcode
63
extern  void    zipi_to_string(const ZIPI ins, char *line);
64
extern  const   char    *zop_regstr[];
65
extern  const   char    *zop_ccstr[];
66
 
67
#endif

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.