mirror of https://github.com/trudnai/Steve2.git
95 lines
3.2 KiB
C
95 lines
3.2 KiB
C
//
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// 6502_dis_utils.h
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// Steve ][
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//
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// Created by Tamas Rudnai on 9/21/19.
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// Copyright © 2019, 2020 Tamas Rudnai. All rights reserved.
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//
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// This file is part of Steve ][ -- The Apple ][ Emulator.
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//
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// Steve ][ is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Steve ][ is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Steve ][. If not, see <https://www.gnu.org/licenses/>.
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//
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#ifndef _6502_dis_utils_h
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#define _6502_dis_utils_h
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#include "common.h"
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#define DISASS_ADDR_LEN 5 // 4 digits + \0
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#define DISASS_OPCODE_LEN (4 * 3 + 1) // max 4 bytes * (2 digits + 1 space) + \0
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#define DISASS_INST_LEN (6 + 1) // 3 char (unknown instr? -- give it 6 chars) + \0
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#define DISASS_OPER_LEN (14 + 2 + 1 + 1 + 1) // 4 digits + 2 brackets + 1 comma + 1 index + \0
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#define DISASS_COMM_LEN 256 // 255 char + \0
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typedef struct disassembly_s {
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uint64_t clk; // clock time
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uint8_t op; // opcode
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uint16_t addr;
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char hexAddr[DISASS_ADDR_LEN]; // 4 digits + \0
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char opcode[DISASS_OPCODE_LEN]; // max 4 bytes * (2 digits + 1 space) + \0
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char * pOpcode; // pointer for opcode string builder
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char inst[DISASS_INST_LEN]; // 3 char (unknown instr? -- give it 6 chars) + \0
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char oper[DISASS_OPER_LEN]; // 4 digits + 2 brackets + 1 comma + 1 index + \0
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char comment[DISASS_COMM_LEN]; // to be able to add some comments
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} disassembly_t;
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extern disassembly_t disassembly;
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//#define DISASS_TRACE
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//#undef DISASS_TRACE
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extern unsigned long long discnt;
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//extern unsigned long long int clktime;
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extern void _disHexB( char ** s, const uint8_t b );
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extern void _disHexW( char ** s, const uint16_t w );
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extern void _disPuts( char ** s, const char * from );
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extern void _disPrintf( char * s, const size_t n, const char * fmt, ... );
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extern void _disNewInstruction(void);
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#if defined(DISASS_TRACE) || defined(DISASSEMBLER)
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#define disHexB( s, b ) _disHexB( &(s), (b) )
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#define disHexW( s, w ) _disHexW( &(s), (w) )
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#define disPuts( s, from ) _disPuts( &(s), (from) )
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#define disPrintf( s, fmt, args... ) _disPrintf( (s), sizeof(s), (fmt), ##args )
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// TODO: We should add a new field for clk counter, so we can print that out _before_ execution, not after...
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#define disNewInstruction() _disNewInstruction()
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#ifdef DISASS_TRACE
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extern void printDisassembly( FILE * f );
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#endif
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#else // DISASS_TRACE
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#define disHexB( to, b )
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#define disHexW( to, w )
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#define disPuts( to, from )
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#define disPrintf( s, fmt, args... )
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#define disNewInstruction()
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#define printDisassembly( f )
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#endif // DISASS_TRACE
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extern size_t disassLineLength;
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extern const char * disassemblyLine(void);
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#endif /* _6502_dis_utils_h */
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