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Struktur: 887c5adfd3
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4 Commits (887c5adfd3c52103fe435ed662817719d89e2ead)

Autor SHA1 Nachricht Datum
  Bryan Miller 887c5adfd3 MOS6502/cpu has the method .hardReset(). Improvements to ALU function, especially in BCD math. Tests enhanced and added test for ADC Immediate BCD mode. vor 5 Jahren
  Bryan Miller fd49d3d657 MOS6502.cpu increasing of program counter slightly modified, fixed some minor bugs. MOS6502.cpu tests updated to be cleaner and clearer and include from flag testing in the existing ADC/SBC tests. vor 5 Jahren
  Bryan Miller 55bde60f14 Enhanced ALU with BCD mode and fixed ADC/SBC flag results. vor 5 Jahren
  Bryan Miller ecd453d812 Moved MOS6502 out of the chip directory. Adjusted tests accordingly. vor 5 Jahren
  Bryan Miller beab01695c Rewrote memory classes and put them in their own folder. Updated MOS6502/cpu and relavent tests. vor 5 Jahren
  Bryan Miller 5781e7617a Added interrupt handlers (by way of psuedo hijacking BRK) and make reset a property. Updated tests accordingly. vor 5 Jahren
  Bryan Miller e92b54db8a Finished coding all opcodes. vor 5 Jahren
  Bryan Miller baed6e66e4 Added dedicated StackPush() and StackPop() methods. Fixed BRK and JSR opcodes. Wrote RTS and RTI opcodes. vor 5 Jahren
  Bryan Miller 9265cb255c Added the ROL and ROR opcodes. vor 5 Jahren
  Bryan Miller 3e179155fd More opcodes finished. vor 5 Jahren
  Bryan Miller 145fb53143 Added LDA opcode. Tweaking ALU() vor 5 Jahren
  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. vor 5 Jahren
  Bryan Miller b31404b6d6 Fixed conflict with BIT (using BITM for the utility file). Method reset() should now match basic 6502 reset mechanics. vor 5 Jahren
  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. vor 5 Jahren
  Bryan Miller fa1b9f9d91 ALU() method modified to directly use and set the cpu.__AR value. ADC() Adjusted according to the new ALU() changes. vor 5 Jahren
  Bryan Miller 52e51110b8 Added ALU and the ADC op code. vor 5 Jahren
  Bryan Miller 30132b152e Fixed the order of the status register flags and initialized the status register to 32 (bit 5 on). vor 5 Jahren
  Bryan Miller 0ab6bb54b8 Branching fixed. Added Register, Flag, and Stack commands. vor 5 Jahren
  Bryan Miller 2433ed5e8f Branches coded. vor 5 Jahren
  Bryan Miller 58e181fac5 MOS6502 CPU buildout. vor 5 Jahren
  Bryan Miller 3daef52868 MOS6502 moved into src/chip/MOS6502 and broken into two different files. Tests have been flattened. vor 5 Jahren