C:\BELLBOOK\P001-100\HTMFILES\CSP0177.HTM (original) (raw)
Chapter 11½ Microprogramming and the Design of the Control Circuits in a Electronic Digital Computer 161
Table 2
Notation: A, B, C, . . stand for the various registers in the arithmetical and control register units (see �3 of the text). "C to D" indicates that the switching circuits connect the output of register C to the input of register D; "(D + A) to C" indicates that the output of register A is connected to the one input of the adding unit (the output of D is permanently connected to the other input), and the output of the adder to register C.
A numerical symbol n in quotes (e.g., "n") stands for the source whose output is the number n in units of the least significant digit.
