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TT2500: Turtle Terminal 2500, from General Turtle Inc.

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Custom TTL design by Marvin Minsky.  There are two displays: one
raster scan for bitmapped characters, and another random scan for
vector graphics.  There is also a keyboard, and a UART for talking
to a host computer.

The computer is normally booted off a ROM which reads and starts a
secondary loader from the UART.  The loader is responsible for reading
the payload, which comes in checksummed blocks.  The LOAD command
accepts files in same format.
This commit is contained in:
Lars Brinkhoff
2020-12-02 08:17:47 +01:00
parent a6e6968cfd
commit 44cc9f3f6d
19 changed files with 3324 additions and 2 deletions
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2
.travis.yml
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@@ -9,7 +9,7 @@ env:
- SIM="microvax2 vax730 vax750 vax780 vax8200 vax8600 microvax2000 infoserver100 infoserver150vxt microvax3100 microvax3100e vaxstation3100m30 vaxstation3100m38 vaxstation3100m76 vaxstation4000m60"
- SIM="microvax3100m80 vaxstation4000vlc infoserver1000 nova eclipse hp2100 hp3000 i1401 i1620 s3 altair altairz80 gri i7094 ibm1130"
- SIM="id16 id32 sds lgp h316 cdc1700 swtp6800mp-a swtp6800mp-a2 tx-0 ssem b5500 isys8010 isys8020 isys8030 isys8024"
- SIM="besm6 imds-210 imds-220 imds-225 imds-230 imds-800 imds-810 imlac"
- SIM="besm6 imds-210 imds-220 imds-225 imds-230 imds-800 imds-810 imlac tt2500"
- SIM="scelbi 3b2 i701 i704 i7010 i7070 i7080 i7090 sigma uc15 i650"
sudo: required
install: sh -ex .travis/deps.sh