GitHub - rtestardi/retro: A Retro Computer, built in 1987 and still running in 2021!

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A Retro Computer, built in 1987 and still running in 2021!

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Name		Name	Last commit message	Last commit date
Latest commit History 5 Commits
boot.q		boot.q
getopt.c		getopt.c
index.html		index.html
intel.c		intel.c
lex.yy.c		lex.yy.c
parser.y		parser.y
readme.txt		readme.txt
retro.docx		retro.docx
retro.pdf		retro.pdf
scanner.l		scanner.l
semantics.c		semantics.c
test.i		test.i
test.q		test.q
y.tab.c		y.tab.c

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In 1987, the thing powered on and worked on the first try, with maybe 2000 (?) wire wrap connections!
In 2021, it still runs!!!

See: https://rtestardi.github.io/retro/retro.pdf

Files in the github repository:

* qc compiler
  * scanner.l -> lex.yy.c
  * parser.y -> y.tab.c
  * semantics.c
* intel hex
  * intel.c
  * getopt.c
* boot loader
  * boot.q
* test program
  * test.q -> test.i

Build:

* cl y.tab.c
* cl intel.c getopt.c

# offset 0 boot loader
  cl /EP boot.q >boot.qq & y.tab.exe <boot.qq >boot.x & intel.exe <boot.x

# offset 32768 test program
  cl /EP test.q >test.qq & y.tab.exe -o 32768 <test.qq >test.x & intel.exe -o 32768 -s 32768 <test.x