KAL4 Assembler on the Web
N.B.Tentative proof-of-concept version.
There is some info that might be useful
(opens in a separate window or tab).
Type in your KAL4 program (paper tape format) here:
The output shows the program as it would have looked on a real KDF9 Flexowriter,
preceded by links to the printer output and other useful files.
There are also links to original documentation describing mening of error reports.
There is a listing output by the assembler on a simulated line-printer.
A successful assembly is indicated by the message KAL4 O.K..
The diagnostic output is sent to a file.
A facility offering more options is available at the foot of this page.
To run the program that you have just assembled
The diagnostics log is normally sent to a file.
If you are running a very small program such as “Hello World!”,
you can remove the -d switch above, and have
all the diagnostic output coming back to your screen.
For running a more realistic program, not only do you need to send the diagnostics to a file using the -d
switch, but you should reduce the verbosity level.
For examples, look at the use of the emulator switches on the assembly sections.