mirror of https://github.com/trudnai/Steve2.git
141 lines
3.4 KiB
C
141 lines
3.4 KiB
C
//
|
|
// main.c
|
|
// 6502
|
|
//
|
|
// Created by Tamas Rudnai on 7/14/19.
|
|
// Copyright © 2019, 2020 Tamas Rudnai. All rights reserved.
|
|
//
|
|
// This file is part of Steve ][ -- The Apple ][ Emulator.
|
|
//
|
|
// Steve ][ is free software: you can redistribute it and/or 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 your option) any later version.
|
|
//
|
|
// Steve ][ is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with Steve ][. If not, see <https://www.gnu.org/licenses/>.
|
|
//
|
|
|
|
#ifndef __6502_INSTR_SET_CLR_H__
|
|
#define __6502_INSTR_SET_CLR_H__
|
|
|
|
/**
|
|
CLC Clear Carry Flag
|
|
|
|
0 -> C N Z C I D V
|
|
- - 0 - - -
|
|
|
|
addressing assembler opc bytes cyles
|
|
--------------------------------------------
|
|
implied CLC 18 1 2
|
|
**/
|
|
INLINE void CLC() {
|
|
dbgPrintf("CLC ");
|
|
disPrintf(disassembly.inst, "CLC");
|
|
m6502.C = 0;
|
|
}
|
|
|
|
/**
|
|
CLD Clear Decimal Mode
|
|
|
|
0 -> D N Z C I D V
|
|
- - - - 0 -
|
|
|
|
addressing assembler opc bytes cyles
|
|
--------------------------------------------
|
|
implied CLD D8 1 2
|
|
**/
|
|
INLINE void CLD() {
|
|
dbgPrintf("CLD ");
|
|
disPrintf(disassembly.inst, "CLD");
|
|
m6502.D = 0;
|
|
}
|
|
|
|
/**
|
|
CLI Clear Interrupt Disable Bit
|
|
|
|
0 -> I N Z C I D V
|
|
- - - 0 - -
|
|
|
|
addressing assembler opc bytes cyles
|
|
--------------------------------------------
|
|
implied CLI 58 1 2
|
|
**/
|
|
INLINE void CLI() {
|
|
dbgPrintf("CLI ");
|
|
disPrintf(disassembly.inst, "CLI");
|
|
m6502.I = 0;
|
|
}
|
|
|
|
/**
|
|
CLV Clear Overflow Flag
|
|
|
|
0 -> V N Z C I D V
|
|
- - - - - 0
|
|
|
|
addressing assembler opc bytes cyles
|
|
--------------------------------------------
|
|
implied CLV B8 1 2
|
|
**/
|
|
INLINE void CLV() {
|
|
dbgPrintf("CLV ");
|
|
disPrintf(disassembly.inst, "CLV");
|
|
m6502.V = 0;
|
|
}
|
|
|
|
/**
|
|
SEC Set Carry Flag
|
|
|
|
1 -> C N Z C I D V
|
|
- - 1 - - -
|
|
|
|
addressing assembler opc bytes cyles
|
|
--------------------------------------------
|
|
implied SEC 38 1 2
|
|
**/
|
|
INLINE void SEC() {
|
|
dbgPrintf("SEC ");
|
|
disPrintf(disassembly.inst, "SEC");
|
|
m6502.C = 1;
|
|
}
|
|
|
|
/**
|
|
SED Set Decimal Flag
|
|
|
|
1 -> D N Z C I D V
|
|
- - - - 1 -
|
|
|
|
addressing assembler opc bytes cyles
|
|
--------------------------------------------
|
|
implied SED F8 1 2
|
|
**/
|
|
INLINE void SED() {
|
|
dbgPrintf("SED ");
|
|
disPrintf(disassembly.inst, "SED");
|
|
m6502.D = 1;
|
|
}
|
|
|
|
/**
|
|
SEI Set Interrupt Disable Status
|
|
|
|
1 -> I N Z C I D V
|
|
- - - 1 - -
|
|
|
|
addressing assembler opc bytes cyles
|
|
--------------------------------------------
|
|
implied SEI 78 1 2
|
|
**/
|
|
INLINE void SEI() {
|
|
dbgPrintf("SEI ");
|
|
disPrintf(disassembly.inst, "SEI");
|
|
m6502.I = 1;
|
|
}
|
|
|
|
#endif // __6502_INSTR_SET_CLR_H__
|
|
|