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COSMAC Elf
Some Links and ideas for my COSMAC Elf projects.
Emulator
Uhr
32768 kHz 2^15, Seiko
https://assets.nexperia.com/documents/data-sheet/74HC_HCT4040.pdf
FPGA
http://whats.all.this.brouhaha.com/category/computing/retrocomputing/retrochallenge/
On the XC7A100T-1FGG484, which is the slowest speed grade, it meets timing
at 62.5 MHz. Since my 1802 core only needs one clock per machine cycle,
versus 8 for the original CDP1802, it runs at the equivalent of a 500 MHz
CDP1802.
COLD[CR]
1802 FIG-FORTH R0.4 3/16/81
: SET-LED 61440 C! ; [CR] OK
: GET-LED 61440 C@ ; [CR] OK
: DELAY 3000 0 DO LOOP ;[CR] OK
: LEFT 7 0 DO GET-LED 2 * SET-LED DELAY LOOP ;[CR] OK
: RIGHT 7 0 DO GET-LED 2 / SET-LED DELAY LOOP ;[CR] OK
: RUN 1 SET-LED BEGIN LEFT RIGHT ?TERMINAL UNTIL ;[CR] OK
RUN[CR]
Micro VIP
https://hackaday.io/project/27009-microvip
Forth
Documentation
FIG Forth
CamelForth
Forth on ARM
EPROM Programmer
27C256 evtl. 28C256, Ich habe noch 2 Stk. 27C256 EPROM im Keller!
Propeller ELF
http://humanoidolabs.blogspot.ch/2012/03/propeller-elf-ii.html
Z280 SBC
https://www.retrobrewcomputers.org/doku.php?id=boards:sbc:cpu280:start
NEC 4bit Microcontroller 75X
μPD75008
75XL μPD750008
ePaper |