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--- its_using_gt40 [2020/03/16 18:50]
lars created
+++ its_using_gt40 [2020/03/16 18:55]
lars
@@ Line 3: / Line 3: @@
 The AI lab had a GT40 attached to terminal line T34.  The GT40 is a PDP-11/05 with a VT11 vector display controller, a CRT display, a keyboard, and a light pen.  SIMH can emulate a GT40 and attach to a PDP-10 emulator terminal line.
-When booted, the GT40 will run from the VT11 ROM.  The ROM has very minimal terminal functions: it will display characters received from the PDP-10, and send keyboard key presses to the PDP-10.  There are also reset and software download functions.  The ROM software by itself does not provide a usable terminal.
+When booted, the GT40 will run from the VT11 ROM.  The ROM has very minimal terminal functions: it will display characters received from the PDP-10, and send keyboard key presses to the PDP-10.  There are also reset and software upload functions.  The ROM software by itself does not provide a usable terminal.
-To use the GT40 with ITS, log in with //^Z// and start //GTLOAD//.
+To use the GT40 with ITS, log in with //^Z// and start //GTLOAD// to upload software.  There is a Datapoint emulator called VT07.  When the GTLOAD prompt "*" appears, type the filename //GT40;VT07// and type enter.  The upload will take a long time: one or two minutes.  When the terminal emulator starts, it will type out "ITS IN OPERATION" at which point the GT40 can be used much like a Datapoint except it has additional lower case characters.
+There is some other GT40 software.  To run something else, restart the GT40 (emulator) and run GTLOAD again.
+  * Lunar Lander: GT40;GTLEM BIN
+  * Spacewar: GT40;SW BIN
+  * CONS console: CONS;CCONS BIN

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