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notes/mos-6502.md

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+---
+title: MOS 6502 Microprocessor
+---
+
+Name            | 6502
+---             | ---
+Introduced      | 1975
+Data Width      | 8-bit
+Address Width   | 16-bit
+Endianness      | Little
+Registers       | 8-bit A, X, Y, Stack. 16-bit PC
+Package         | 40-pin DIP
+Instruction Count | 56
+
+## Addressing Modes
+- Implied
+- Immediate
+- Absolute
+- Indexed Absolute
+- Indexed Zero-Page
+- Relative
+- Accumulator
+- Indirect, X
+- Indirect, Y
+
+## Datasheets
+- [WDC W65C02S NMOS Variant](https://www.westerndesigncenter.com/wdc/documentation/w65c02s.pdf)
+
+## Notable Usage (includes variants)
+- Nintendo Entertainment System
+- Atari 2600
+- Apple II
+- Commodore 64
+- BBC Micro
+