Expand description
6502 virtual machine implementation.
This crate provides a virtual machine for the 6502 CPU.
It is designed to be used as a library, with no frontend.
Virtual machine
The virtual machine is implemented as a struct, VirtualMachine
, which contains
all the state of the machine. The state is stored in a flat array, which is
indexed by the Registers
struct.
Specifications
Registers
THere are 8 status flags, stored in the registers.
S/N: The B flag is not actually set on the real 6502 status register, instead it’s configured in memory when it’s pushed and pulled. (Presumably during BRK)
Flags
Memory
The VirtualMachine has a flat memory map which the stack and heap index into.
Addressing modes
Instruction set
Macros
Several macros are provided for more easily interacting with the machine and wielding opcodes. See more.
!! In construction !!
Also provided is an assembler and a programmer.