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the MOS tech 6502 8-bit microprocessor in pure SQL powered by postgres

63 starsPLpgSQL

MOS Tech 6502 emulated in pure Postgres

by heywinit·Apr 13, 2026·2 points·0 comments
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AI Analysis

●●●●GemWizardryZero to OneRabbit Hole

Pure SQL 6502 emulation with opcodes as stored procedures—no external code anywhere.

Strengths
  • •Every CPU opcode implemented as PostgreSQL stored procedures with no external dependencies
  • •64KB memory and all registers mapped to database tables for SQL querying
  • •Passes Klaus 6502 Functional Test suite proving actual CPU correctness
Weaknesses
  • •Performance inherently limited by SQL execution overhead for each instruction
  • •Niche appeal with no practical production use case beyond demonstration
Target Audience

Database engineers, retro computing enthusiasts, PostgreSQL power users

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