jnjenga / e6502 Goto Github PK
View Code? Open in Web Editor NEWA 6502 CPU emulator with a 32x32 display input device and ability to step through asm code
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Configuration file
Loading configurations from a file
Read asm code from file
The source code should be obtained from a file on disk
High level language?
It'd be cool if there was a highlevel language that'll compile to the assembley language,
Doesn't have to be a complete language, a subset of C maybe?
Create a debug UI for the CPU properties
A dialog for inspecting the registers and maybe the memory view
Check for already defined labels in the lexer
src/lexer.rs:568
Before inserting a label, check if it already exists.
If it exists panic.
Compile source code and write to a .bin file
Implementaiton of instructions progress
Below is the current progress of the instructions that have been implemented and those that are yet to be implemented
- ADC
- AND
- ASL
- BCC
- BCS
- BEQ
- BIT
- BMI
- BNE
- BPL
- BRK
- BVC
- CLC
- CLD
- CLI
- CLV
- CMP
- CPX
- CPY
- DEC
- DEX
- DEY
- EOR
- INC
- INX
- INY
- JMP
- JSR
- LDA
- LDX
- LDY
- LSR
- NOP
- ORA
- PHA
- PHP
- PLA
- PLP
- ROL
- ROR
- RTI
- RTS
- SBC
- SEC
- SED
- SEI
- STA
- STX
- STY
- TAX
- TAY
- TSX
- TXA
- TXS
- TYA
Implement tests for instructions
Below is the current progress of the instruction tests that have been implemented and those that are yet to be implemented
- ADC
- AND
- ASL
- BCC
- BCS
- BEQ
- BIT
- BMI
- BNE
- BPL
- BRK
- BVC
- CLC
- CLD
- CLI
- CLV
- CMP
- CPX
- CPY
- DEC
- DEX
- DEY
- EOR
- INC
- INX
- INY
- JMP
- JSR
- LDA
- LDX
- LDY
- LSR
- NOP
- ORA
- PHA
- PHP
- PLA
- PLP
- ROL
- ROR
- RTI
- RTS
- SBC
- SEC
- SED
- SEI
- STA
- STX
- STY
- TAX
- TAY
- TSX
- TXA
- TXS
- TYA
Support for DCB "instruction" in the lexer
Drivers?
Not sure about this one but,
I'd like to simulate drivers. An external piece of code or program or a module that can update a specific memory region.
For example, a keyboard driver. We can set aside 2 bytes in some memory region to hold 2 keys that are down. The drivers work would be to read the keyboard keys and update the values.
Or, a mouse driver.
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