IBM System/370 145 Manual page 174

buffer, 4 disk units using two 2K shared buffers, and unit record
devices with 400 bytes of buffers--requires a 166K partition for
emulation. This figure includes 1500 bytes of access method routines.
(For details about processor storage requirements, see 1410/1010 OS
Emulator
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Models 145/155, GC33-2009.) --
Table 40.05.1 lists the 1410/7010 system features supported and not
supported
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the Model 145 1410/7010 Emulator program. Table 40.05.2
lists 1410/7010 I/O devices and features emulated and their Model 145
I/O device counterparts, while Table 40.05.3 indicates unsupported
1410/7010 devices.
The number of Model 145 direct access devices required to emulate a
1410/7010 disk device is indicated in Table 40.05.4. Requirements with
and without use of the Track Overflow feature are indicated. Note that
2311 drives without track overflow cannot be used to emulate 1302 and
2302 Disk Storage.
The Model 145 integrated OS 1410/7010 Emulator program supports the
same facilities and I/O devices as the stand-alone 1410/7010 emulator
for System/360 models except for Stacker Selection on the 1402 Card Read
Punch.
Table 40.05.1. 1410/7010 system features supported and unsupported
by the Model 145 OS 141.0/7010 Emulator program
1410 Features
supported
All basic CPU functions
Core storage up to a
maximum of 80,000
positions
Inverted Print Edit
Priority Processing
Processing Overlap
One or two channels
Unsupported
The 1400 Diagnostic instruction
Branch on Tape Indicate
7010 Features
supported
Standard 1010 instruction set
with store and restore status
Main storage up to a maximum of
100,000 positions
Floating Point Arithmetic
Processing Overlap
Priority Feature
Inverted Print Edit
One to four channels
Unsupported
1401/1410 Compatibility Mode
Diagnostic ;nstruct.ion Branch
on C Bit
Program Relocation
Storage Protection
Interval Timer
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164 A Guide to the IBM System/370 Model 145