IBM System/370 Manual page 181

features
optional 35
standard 34
fixed processor storage locations 13, 14
forms control buffer (See FCB.)
general purpose instructions
description 10
OS support 52
portability 93
HALT DEVICE instruction 25
hang detect machine check 13
hard machine checks
description 11
MCH support 19
hard stop
description 11
system operation with machine check control switch set to 94
High-speed Multiply feature 1, 10
imprecise interrupts 8
indicator viewer 13
inline ripple 19
INSERT CHARACTERS UNDER MASK instruction 10
instruction unit 8
instructions
description of new 9
list of new 34
OS support of new 34
overlap of preparation and execution 8
standard
9
integrated emulation, advantages 56
interleaving 15, 21
internal performance
CPU 14
1010 Emulator program 62
1080 Emulator program 61
1090 Emulator program 65
interrupts
channel available 29
imprecise 8
machine check 13
other than machine check 9
interval timer
description 11
OS support 53
I/O devices for Model 165 36
configurations 26
I/O RMS routines 81
IPL, system state after 18
LOAD CONTROL instruction 9
local storage 8
logical memory 15
machine check code 16
machine check interrupts 13-18
hard 13, 11
masking 15
MCH support 19
Models 65 and 15 18
soft 13, 15
types 15
machine check recording mode
101