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*********************** *** Lame6502 README *** *********************** *************** *** License *** *************** lame6502 - a portable 6502 emulator Copyright (c) 2005, Joey Loman, <[email protected]> All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. Neither the name of the author nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ************************* *** Released versions *** ************************* ----------- 06-12-2012: ----------- Public version 0.2: - Fixed a bug in the COMP_MEM_IDI and COMP_MEM_INI instructions. (Thanks to Thomas Winkler for pointing this out) ----------- 26-12-2006: ----------- Public version 0.1 *********************** *** Getting started *** *********************** lame6502 has the following functions implemented: Allocate system memory function: allocate_memory(size) Memory read function: memory_read(address) Memory write function: write_memory(address,data) Maskable Interrupt function: IRQ(cycles) Non Maskable Interrupt function: NMI(cycles) Reset CPU registers function: CPU_reset() Execute instruction function: CPU_execute(cycles) *************** *** Credits *** *************** - Daniel Boris for getting me started with his "how to write an emulator" document. - RTK and CricketNE for the 6502 Instruction Summary. - And all the people i forgot to mention. Copyright (c) 2005, Joey Loman <[email protected]> - http://www.lamenes.org