Analysis of information sources in references of the Wikipedia article "Control store" in English language version.
It is not unusual to find microprograms that are greater than 50K bytes in size. This increase in size, and the expansion of microprograming beyond the traditional bounds of machine instruction emulation, have increased the possibility of both malicious and faulty microprograms, particularly the later.
4096 x 75-bit SRAM writeable control store: 74-bit microinstruction with 1 parity bit (18 fields)
It is not unusual to find microprograms that are greater than 50K bytes in size. This increase in size, and the expansion of microprograming beyond the traditional bounds of machine instruction emulation, have increased the possibility of both malicious and faulty microprograms, particularly the later.
