Boots – shoes – and leggings
Patent
1988-09-07
1991-10-08
Eng, David Y.
Boots, shoes, and leggings
3642628, 364263, G06F 922, G06F 930
Patent
active
050560085
ABSTRACT:
A data processor includes a program memory storing a string of instructions, a program counter producing address data for designating a memory location of the program memory storing an instruction to be executed, an instruction decoder decoding the instruction read-out from the program memory and producing a set of control signals, and an execution unit for executing the read-out instruction in response to the set of control signals. The processor further includes a control signal generation circuit generating an additional control signal when the address data from the program counter takes a specific content. The address data taking the specific content is supplied to the program memory for reading out an instruction therefrom, the read-out instruction being supplied to the instruction decoder. Thus, the processor executes an operation responsive to the additional control signal in parallel with the read-out instruction accessed by the address data taking the specific content.
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patent: 4251859 (1981-02-01), Momose et al.
patent: 4254461 (1981-03-01), Chemia et al.
patent: 4293907 (1981-10-01), Huang et al.
J. Dirac, "Call Instruction", IBM Technical Disclosure, vol. 8, No. 12, May 1966, p. 1751.
Eng David Y.
NEC Corporation
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