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Presents historical artifacts from the history of:

CR80 Hard and Floppy Disks

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artifacts from Datamuseum.dk's BitArchive.

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⟦4226ae93a⟧ TextFile

    Length: 1151 (0x47f)
    Types: TextFile
    Names: »19902.BAK«, »1990D1.SRC«

Derivation

└─⟦9ae070e28⟧ Bits:30005551 8" CR80 Floppy CR80FD_0102 ( CR/D/1867 PAL1 MASTER PALS til CR8003D/030 P-100 1.DEL GAMLE FLOPS.  2 CR8003D/040PC/00 )
└─⟦9ae070e28⟧ Intel_ISIS_II
    └─ ⟦this⟧ »1990D1.SRC« 
└─⟦a734913b4⟧ Bits:30005499 8" CR80 Floppy CR80FD_0110 ( PALS TIL CR8003M/040PC/00 Mapped Cache CPU)
└─⟦a734913b4⟧ Intel_ISIS_II
    └─ ⟦this⟧ »19902.BAK« 

TextFile

PAL16R4\r
PAT1990\r
CR1990-1, D-VERSION, CBPBCO, JKZ , 820217\r
\r
O2I MCIFF CAMCIL LBUS20 LBUS21 CRPS LBUS22 LBUS23 PRPS GND\r
OEL LREADM VALIDM /PRPSM /CRPSM /PS1 /PS0 CHROEL PROEL VCC \r
\r
IF (VCC) /VALIDM=LBUS20+\r
LBUS23*/LBUS22+\r
/LBUS23*LBUS22+\r
/LBUS21+\r
/MCIFF+\r
MCIFF*PROEL*CHROEL+\r
MCIFF*/PROEL*/CHROEL\r
\r
IF (VCC) /LREADM=/LBUS23*MCIFF+\r
/LBUS21*MCIFF+\r
LBUS20*MCIFF+\r
/LBUS22*MCIFF\r
\r
PS0:=MCIFF*/PS0*CRPS*/CRPSM+\r
MCIFF*/PS0*/CRPS*CRPSM\r
\r
PS1:=/PS1*PS0*PRPS*/PRPSM*MCIFF+\r
/PS1*PS0*/PRPS*PRPSM*MCIFF+\r
/PS1*CRPS*CRPSM*PRPS*/PRPSM*MCIFF+\r
/PS1*/CRPS*/CRPSM*PRPS*/PRPSM*MCIFF+\r
/PS1*CRPS*CRPSM*/PRPS*PRPSM*MCIFF+\r
/PS1*/CRPS*/CRPSM*/PRPS*PRPSM*MCIFF\r
\r
PRPSM:=PRPS*PRPSM+\r
PS1*PRPSM+\r
/PS1*PS0*PRPS+\r
/PS0*CRPS*/CRPSM*/PRPS*PRPSM+\r
/PS0*/CRPS*CRPSM*/PRPS*PRPSM+\r
/PS1*/CRPS*/CRPSM*PRPS*/PRPSM+\r
/PS1*CRPS*CRPSM*PRPS*/PRPSM\r
\r
CRPSM:=PS0*CRPSM+\r
/PS0*CRPS\r
\r
IF (VCC) /PROEL=/PS1*PS0*PRPS*/PRPSM+\r
/PS1*CRPS*CRPSM*PRPS*/PRPSM+\r
/PS1*PS0*/PRPS*PRPSM+\r
/PS1*/CRPS*/CRPSM*PRPS*/PRPSM+\r
/PS1*/CRPS*/CRPSM*/PRPS*PRPSM+\r
/PS1*CRPS*CRPSM*/PRPS*PRPSM\r
\r
IF (VCC) /CHROEL=/CRPS*CRPSM*/PS0+\r
CRPS*/CRPSM*/PS0\r
\r
DESCRIPTION: DATE: 820217/JKZ\r
\r
\r
\r
\r
\r

\r