IBM 5100 User Manual

Bring Up Diagnostic Halt Codes
Halt conditions occur during the bring up program if a
rnachine failure is detected. Halts
are displayed on line
1 starting
in position 2. The halts and their meaning are:
A - Bus in bit test
AB - Op code test
ABC - Read/write storage-ROS switching test
ABCD - Interrupt 1, 2, and 3 tests
AB C D E - Device address test
ABCDE F - Bus out test (all devices)
ABCDEFG - Stuck key test (see 250)
ABCDEFGH - Storage test (0600 to end)
ABCDEFGHI - ROS content' and CRC test
ABCDEFGHIJ - ROS address read back test
AB CD E F G H I J K - Bring up complete
LO AD 0 - BASIC is ready
CLEAR WS - APL is ready
, ROS content:
Sequence
Number ROS Card
10,11,12,13, 14, and 15 C4 (BASIC ROS)
16, 17 and 18 E2 (ROS adapter)
20,21,22, 23, and 24 02 (APL ROS 1)
25,26,27,28, and 29 04 (APL ROS 2)
2A, 2B, 2C, 20, 2E, and 2F C2 (APL ROS 3)
3-12
'\
./

IBM 5100 Specifications

General

Release Year	1975
RAM	16 KB - 64 KB
Storage	204 KB tape drive
Display	5-inch CRT
Operating System	APL/BASIC
Processor	IBM PALM (1.9 MHz)