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Bug Fixes: - Fixed several bugs in the CPU that caused processor status flags to be set incorrectly. Instructions affected were: STA, STX, STY, CMP, CPX, CPY, BIT. - Made some internal-use-only methods on the CPU class private. - Fixed incorrect disassembly of (Indirect,X) and (Indirect),Y instructions. Although this didn't affect behavior, it certainly caused me some confusion in debugging. - Added missing "BCS" instruction to instruction table. Enhancements: - Now includes a full version of Lee Davison's Enhanced 6502 BASIC bundled as source code and a ROM image. Get that REAL COMPUTER EXPERIENCE!(tm) - If a file named "rom.bin" exists in the same directory where the simulator is executed, it will be loaded at addresses $d000-$ffff. - Gave the CPU an idle loop to make simulated timing a little more realistic (but this is still an area needing major improvement) - Changed the CPU's toString() method to give better debugging output. - Added a small typeahead buffer to the Console. - Better exception messaging. Misc: - Bumped version to 0.5, updated README.
14 lines
208 B
Makefile
14 lines
208 B
Makefile
CA=ca65
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LD=ld65
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all: ehbasic
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ehbasic: ehbasic.o
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$(LD) -C symon.config -vm -m ehbasic.map -o ehbasic.rom ehbasic.o
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ehbasic.o:
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$(CA) --listing -o ehbasic.o min_mon.asm
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clean:
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rm -f *.o *.rom *.map *.lst
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