| Line 10... |
Line 10... |
// Creator: Dan Gisselquist, Ph.D.
|
// Creator: Dan Gisselquist, Ph.D.
|
// Gisselquist Technology, LLC
|
// Gisselquist Technology, LLC
|
//
|
//
|
////////////////////////////////////////////////////////////////////////////////
|
////////////////////////////////////////////////////////////////////////////////
|
//
|
//
|
// Copyright (C) 2015, Gisselquist Technology, LLC
|
// Copyright (C) 2015-2017, Gisselquist Technology, LLC
|
//
|
//
|
// This program is free software (firmware): you can redistribute it and/or
|
// This program is free software (firmware): you can redistribute it and/or
|
// modify it under the terms of the GNU General Public License as published
|
// modify it under the terms of the GNU General Public License as published
|
// by the Free Software Foundation, either version 3 of the License, or (at
|
// by the Free Software Foundation, either version 3 of the License, or (at
|
// your option) any later version.
|
// your option) any later version.
|
| Line 23... |
Line 23... |
// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
|
// ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY or
|
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
// for more details.
|
// for more details.
|
//
|
//
|
// You should have received a copy of the GNU General Public License along
|
// You should have received a copy of the GNU General Public License along
|
// with this program. (It's in the $(ROOT)/doc directory, run make with no
|
// with this program. (It's in the $(ROOT)/doc directory. Run make with no
|
// target there if the PDF file isn't present.) If not, see
|
// target there if the PDF file isn't present.) If not, see
|
// <http://www.gnu.org/licenses/> for a copy.
|
// <http://www.gnu.org/licenses/> for a copy.
|
//
|
//
|
// License: GPL, v3, as defined and found on www.gnu.org,
|
// License: GPL, v3, as defined and found on www.gnu.org,
|
// http://www.gnu.org/licenses/gpl.html
|
// http://www.gnu.org/licenses/gpl.html
|
//
|
//
|
//
|
//
|
////////////////////////////////////////////////////////////////////////////////
|
////////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
//
|
#ifndef ZOPCODES_H
|
#ifndef ZOPCODES_H
|
#define ZOPCODES_H
|
#define ZOPCODES_H
|
|
|
|
#include <stdint.h>
|
|
|
|
// MACROS used in the instruction definition list.
|
#define ZIP_OPUNUSED -1
|
#define ZIP_OPUNUSED -1
|
#define ISUSEROP(A) ((a&(~0x0f))==0x000)
|
#define ISUSEROP(A) ((a&(~0x0f))==0x000)
|
#define ISSUPROP(A) ((a&(~0x0f))==0x010)
|
#define ISSUPROP(A) ((a&(~0x0f))==0x010)
|
#define ISLCLROP(A) ((a&(~0x0f))==0x020)
|
#define ISLCLROP(A) ((a&(~0x0f))==0x020)
|
#define ZIP_BITFIELD(LN,MN) (((LN&0x0ff)<<8)+(MN&0x0ff))
|
#define ZIP_BITFIELD(LN,MN) (((LN&0x0ff)<<8)+(MN&0x0ff)) // A generic bitfield
|
#define ZIP_REGFIELD(MN) (0x00000400 +(MN&0x0ff))
|
#define ZIP_REGFIELD(MN) (0x00000400 +(MN&0x0ff)) // Normal register field
|
#define ZIP_URGFIELD(MN) (0x0100400 +(MN&0x0ff))
|
#define ZIP_URGFIELD(MN) (0x0100400 +(MN&0x0ff)) // User register field
|
#define ZIP_SRGFIELD(MN) (0x0200400 +(MN&0x0ff))
|
|
#define ZIP_IMMFIELD(LN,MN) (0x40000000 + (((LN&0x0ff)<<8)+(MN&0x0ff))) // Sgn extnd
|
#define ZIP_IMMFIELD(LN,MN) (0x40000000 + (((LN&0x0ff)<<8)+(MN&0x0ff))) // Sgn extnd
|
// #define REGVAL(V) ((V & 0x0f)+0x020)
|
#define ZIP_SRGFIELD(MN) (0x0200400 +(MN&0x0ff))
|
|
#define ZIP_SP 0xd0000
|
|
|
typedef unsigned int ZIPI; // A Zip CPU instruction
|
typedef uint32_t ZIPI; // A Zip CPU instruction
|
|
|
typedef struct {
|
typedef struct {
|
char s_opstr[8];
|
char s_opstr[8]; // OPCode name
|
ZIPI s_mask, s_val;
|
ZIPI s_mask, // Bits that must match 4 this pattern to match
|
int s_result, s_ra, s_rb, s_i, s_cf;
|
s_val; // What those masked bits must be
|
|
//
|
|
// The following describe not the value, but the bits where there
|
|
// respective vaules will be found within the instruction. For example,
|
|
// an instruction with no immediate will have an s_i value of -1
|
|
// (ZIP_OPUNUSED), whereas an instruction with an immediate value of -1
|
|
// might have an s_i value of ZIP_BITFIELD(14,0), or 0x0400. The
|
|
// opcode itself will tell you what the value is--not this structure
|
|
// describing the opcode.
|
|
//
|
|
int s_result, // Register where the result will be placed
|
|
s_ra, // A register, often the result
|
|
s_rb, // B register, source operand (if used)
|
|
s_i, // Immediate value, added to B if B is used
|
|
s_cf; // Condition flags.
|
} ZOPCODE;
|
} ZOPCODE;
|
|
|
extern const ZOPCODE zoplist[];
|
extern const char *zip_regstr[49], *zip_ccstr[8];
|
extern const int nzoplist;
|
|
|
extern const ZOPCODE *zip_oplist, *zip_opbottomlist;
|
|
extern const int nzip_oplist, nzip_opbottom;
|
|
|
// Disassemble an opcode
|
// Disassemble an opcode
|
extern void zipi_to_string(const ZIPI ins, char *la, char *lb);
|
extern void zipi_to_double_string(const uint32_t, const ZIPI, char *, char *);
|
extern const char *zop_regstr[];
|
extern const char *zop_regstr[];
|
extern const char *zop_ccstr[];
|
extern const char *zop_ccstr[];
|
extern unsigned int zop_early_branch(const unsigned int pc, const ZIPI ins);
|
extern unsigned int zop_early_branch(const unsigned int pc, const ZIPI ins);
|
|
|
#endif
|
#endif
|
