Potatohead on the AtariAge forums brings this to our attention:
Darryl Biggar
fixed and incorporated Eric Ball's 6502 emulation into a NES emulator which runs pacman. (Edit:
updated link.)
Most amusing comment:
Code:
' TODO decimal mode
(perhaps I'm easily amused: I know decimal mode is difficult to get right.)
Eric adds this summary of what Propeller is (Besides a 5v (*) 40-pin DIP):
Quote:
Just to elaborate on Propeller RAM - each 32bit processing core has 2K (496x32bit) of private RAM for code and local data/registers. There is 32K of on chip shared RAM used for shared data and SPIN bytecode. Access to the shared RAM is slower 4-8 times slower than private RAM. The Propeller does not have an external memory bus architecture - only 32 GPIO pins. An external memory can be attached, but it cannot be used to store code directly. The RAMBlade is a design with a 512Kx8 SRAM connected directly to the Propeller.
This succesful emulation of 6502 is not to be confused with the
earlier topic where a 6502 system uses a propeller for glue (and bootstrapping)
Edit: I stand corrected, chip is 3.3v but interfacing with 5v not too difficult.
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