KM1801VM3:
Features
a large volume of addressable memory (4 MB), high-speed (add
register/Ledger - 1,5 million op/s, multiplication - 100 thousand op/s,
div to 50 thousand op/s), as well as the ability to connect coprocessor
floating point arithmetic. Memory Manager is not fully compatible with
the equivalent from DEC. With only 18-bit address bus (up to 256 KB)
compatible memory Manager was sufficient for use of the software without
alterations, but when the full, 22-bit address bus (4 MB) required the
adaptation of program code.
The number of teams - 72, when
connecting coprocessor - additional 46 teams floating point. The command
system of the extended tools to work with the memory Manager: MFPD,
MFPI, MTPD, MTPI.
There is one set of six General-purpose
registers R0-R5, two of the register stack pointer R6 (user mode and
system mode) and register counter (PC) (R7). One additional register
stack R6 used in the stop mode. Status register PSW processor is also
available software at 17777776.