Installing SITS on SIMH

Brief notes on installing SITS on SIMH.

Introduction

• RUG is a DDT-like memory resident debugger, like ITS' non-time-sharing DDT. It can also handle a variety of media for reading and writing files.
• SALV is the disk salvager, same as in ITS.
• SYSSPR is the system sphere, the first program run by SITS.
• DDT is the user interface command processor, like DDT/HACTRN in ITS.
• INQUIR handles a user database, like on ITS.
• FNT is a system program which loads fonts for use on the TV displays.

Prepare media

Have these absolute loader paper tapes ready:

• SALV
• RUG

Run RUG; PUNCH on ITS to read these PALX binaries and punch out paper tapes:

• SITS BIN
• SYSSPR BIN
• DDT BIN

PUNCH will divide the output in a series of tapes. It will valret in NEWBLK; continue with $P when a new tape has been mounted.

PUNCH will valret at EDONE when finished.

Format disks

Boot the SALV paper tape.

SALV will print a * prompt. For each disk pack, type nI to format the pack.

Install system files

Boot the RUG paper tape.

RUG will print a * prompt. First, type $^D to copy RUG to disk.

Load SITS, SYSSPR, and DDT from paper tape, and save them to disk. For each program type $L P: to load from tape. RUG will halt when it's time to mount the next tape, and return to the * prompt after the last tape. Type $Y to save the program to disk.

RUG can also load from a serial line with $L T: or over the Rubin 10-11 interface with $L M:, but this requires running ITS on the other end.

Transcripts

This shows SALV used to format a disk. Other disks are done similarly, but only the first needs to be a "Rug disk".

SALV 174
*0Init
sure?Y
FFormat?N

Rug disk?Y
Reserved for syms file:  144-200

Swap area 1:  1000-2000

Swap area 2:

Reserved:  0
Reserved:  4-23
Reserved:  54-143
Reserved:  201-217

Reserved:
Writing block 000050
Writing block 000047

Disk name:  SITS0

Writing block 000046
Writing block 000045

*

This shows how to read three programs from paper tapes and save them to disk. Each HALT corresponds to a change of paper tape. The files are written to the "." directory on disk 0.

*$^D
*$L   P:

HALT instruction, PC: 140522 (DECB R3)

HALT instruction, PC: 140522 (DECB R3)

HALT instruction, PC: 140522 (DECB R3)

HALT instruction, PC: 140522 (DECB R3)

HALT instruction, PC: 140522 (DECB R3)

HALT instruction, PC: 147604 (DECB R3)

HALT instruction, PC: 147604 (DECB R3)

HALT instruction, PC: 147604 (DECB R3)

*$Y   0:   DAZZEL

*$L   P:

HALT instruction, PC: 147604 (DECB R3)

*$Y   0:   SYSSPR

*$L   P:

HALT instruction, PC: 140522 (DECB R3)

HALT instruction, PC: 140522 (DECB R3)

HALT instruction, PC: 140522 (DECB R3)

HALT instruction, PC: 147604 (DECB R3)

HALT instruction, PC: 147604 (DECB R3)

*$Y   0:   DDT

*