Is 6502 still used?

Is 6502 still used?

It’s Still in Production The Western Design Center, Inc, founded by Bill Mensch of Motorola and MOS fame, sells modern versions of the 6502 in both the classic 40 pin DIP package (appears to be pin-compatible with the original), as well as more modern surface mount packages.

What computers used the 6502?

As a result, the 6502 (or variations thereof) formed the heart of many popular video game consoles and computers, such as the Atari 2600, Atari 8-bit family, Apple II, Nintendo Entertainment System, Commodore 64, Atari Lynx, BBC Micro, and others.

How much RAM can a 6502 address?

64K bytes
The 6502 is strictly an 8-bit architecture, with a single 8-bit accumulator register, and can access a maximum of 64K bytes of random access memory. Memory addresses are exactly 16 bits in length, because 216 = 65536 = 64K. Valid addresses range from 0 up to 65535.

Who made 6502?

The breakthrough that permitted this cost reduction, says Bill Mensch, who created the 6502 with Peddle, was a minimal instruction set combined with a fabrication process that “yielded 10 times as many good chips as the competition.” The 6502 almost single-handedly forced the price of processors to drop, helping launch …

Does 6502 have memory?

Memory. The 6502 is an 8-bit processor with a 16-bit address bus. It is therefore able to access 64 kilobytes (216 bytes). Since each 16-bit address is comprised of two 8-bit bytes, memory can be viewed as 256 pages of 256 bytes each.

Is a 6502 assembly hard?

It’s a very simple architecture, with a very simple instruction set. However, there are lots of “tricks” used by 6502 programmers which are not at all obvious to beginners.

Is 6502 a RISC?

Several (common) characteristics of RISC were identified, and the article ultimately concluded that the 6502 was not RISC. One characterstic was a large number of general purpose registers.

When did the 6502 come out?

1975
Photo: The 8-bit 6502 was a smash hit from the get-go when it was released in 1975, due to its low price.

How many registers did the 6502 have?

The 6502 used in the NES was a second source version by Ricoh, a partial system-on-a-chip, that lacked the binary-coded decimal mode but added 22 memory-mapped registers and on-die hardware for sound generation, joypad reading, and sprite list DMA.

Is the 6502 a CPU?

The MOS Technology 6502 (typically pronounced “sixty-five-oh-two” or “six-five-oh-two”) is an 8-bit microprocessor that was designed by a small team led by Chuck Peddle for MOS Technology….MOS Technology 6502.

How many transistors does 6502 have?

3218 transistors
There are 3218 transistors and 1019 resistors that comprise the “functional” part of the 6502.