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17 Commits (beab01695caa6447f52416826704a777d5ab6ffe)

Author SHA1 Message Date
  Bryan Miller beab01695c Rewrote memory classes and put them in their own folder. Updated MOS6502/cpu and relavent tests. 5 years ago
  Bryan Miller 5781e7617a Added interrupt handlers (by way of psuedo hijacking BRK) and make reset a property. Updated tests accordingly. 5 years ago
  Bryan Miller e92b54db8a Finished coding all opcodes. 5 years ago
  Bryan Miller baed6e66e4 Added dedicated StackPush() and StackPop() methods. Fixed BRK and JSR opcodes. Wrote RTS and RTI opcodes. 5 years ago
  Bryan Miller 9265cb255c Added the ROL and ROR opcodes. 5 years ago
  Bryan Miller 3e179155fd More opcodes finished. 5 years ago
  Bryan Miller 145fb53143 Added LDA opcode. Tweaking ALU() 5 years ago
  Bryan Miller 50526cd864 MATHC() broken into ADC() and SBC() once again. ProccessOp() handles memory and value access in the various mode types and returns true when the process who generate an outcome. 5 years ago
  Bryan Miller b31404b6d6 Fixed conflict with BIT (using BITM for the utility file). Method reset() should now match basic 6502 reset mechanics. 5 years ago
  Bryan Miller b9802d895a ADC() method turned into the MATHC() method which can be used for both the ADC and SBC op codes. CPU.clk() updated accordingly. 5 years ago
  Bryan Miller fa1b9f9d91 ALU() method modified to directly use and set the cpu.__AR value. ADC() Adjusted according to the new ALU() changes. 5 years ago
  Bryan Miller 52e51110b8 Added ALU and the ADC op code. 5 years ago
  Bryan Miller 30132b152e Fixed the order of the status register flags and initialized the status register to 32 (bit 5 on). 5 years ago
  Bryan Miller 0ab6bb54b8 Branching fixed. Added Register, Flag, and Stack commands. 5 years ago
  Bryan Miller 2433ed5e8f Branches coded. 5 years ago
  Bryan Miller 58e181fac5 MOS6502 CPU buildout. 5 years ago
  Bryan Miller 3daef52868 MOS6502 moved into src/chip/MOS6502 and broken into two different files. Tests have been flattened. 5 years ago