├── ChipLabels.brd ├── EEPROM-protowiring.brd ├── EEPROM-protowiring.sch ├── EEPROM-smt.brd ├── EEPROM-smt.sch ├── EEPROM-smt2.brd ├── EEPROM-smt2.sch ├── EEPROM.brd ├── EEPROM.sch ├── Firmware ├── Z80_test1 │ ├── 4chipZ80.h │ └── Z80_test1.ino ├── figForth │ ├── Z80-figforth130.asm │ └── Z80-figforth130.hex └── loader │ ├── 4chipZ80.h │ └── loader.ino ├── Gerbers-V1bad ├── Fix-2-IORQ-PullUp.jpg ├── Fixes.png ├── README.md ├── Z80-4chip-PCBWAY-BAD.brd ├── Z80-4chip-PCBWAY-BAD.sch ├── Z80-4chip6.DRD ├── Z80-4chip6.GBL ├── Z80-4chip6.GBO ├── Z80-4chip6.GBS ├── Z80-4chip6.GTL ├── Z80-4chip6.GTO ├── Z80-4chip6.GTS ├── Z80-4chip6.dri └── Z80-4chip6.gpi ├── Gerbers-V2 ├── Z80-4chip-v2.1-gerbers.zip ├── Z80-4chip7.GBL ├── Z80-4chip7.GBO ├── Z80-4chip7.GBS ├── Z80-4chip7.GML ├── Z80-4chip7.GTL ├── Z80-4chip7.GTO ├── Z80-4chip7.GTS ├── Z80-4chip7.TXT ├── Z80-4chip7.dri └── Z80-4chip7.gpi ├── Gerbers-V3 ├── README.md ├── Z80-4chip-v3-gerbers.zip ├── Z80-4chip-v3.DRD ├── Z80-4chip-v3.GBL ├── 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