SWTBUG is the name of the monitor program used in the SWTPC 6800 Computer System. It might be thought of as kind of a mini-operating system since it gives the operator command control over the computer system.

Features of the SWTBUG ROM include:

Memory Examine and Change
Program loading from cassette or paper tape thru the control interface or thru I/O port # 0.
Program saving to cassette or paper tape
Go to user program
Display contents of registers
Erase SWTPC CT-1024 terminal system screen
SWTPC MF-68 floppy disk boot
Byte search
Breakpoint debugging
Vectored hardware and software interrupts to user defined addresses

Introduced by Southwest Technical Products Corporation in 1977.

SWTBUG Users Guide (19 pages PDF 110K)

SWTBUG Source Listings (14 pages PDF 20K)

SWTBUG Source (TXT 11K)

Memory Diagnostics (8 pages PDF 33K)

CDAT2 Source (TXT 2K)

ROBIT2 Source( TXT 2K)

MEMCON3 Source (TXT 2K)

SUMTEST2 Source (TXT 2K)

CDAT2 Load File (TXT 1K)

ROBIT2 Load File (TXT 1K)

MEMCON3 Load File (TXT 1K)

SUMTEST2 Load File (TXT 1K)

Michael Holley's SWTPC Collection Home Page