Boots – shoes – and leggings
Patent
1982-02-22
1986-03-18
Shaw, Gareth D.
Boots, shoes, and leggings
G06F 900, G06F 1300
Patent
active
045772827
ABSTRACT:
A system for real-time digital signal processing employs a single-chip microcomputer device having separate on-chip program ROM and data RAM, with separate address and data paths for program and data. An external program address bus allows off-chip program fetch in an expansion mode, with the opcode returned by an external data bus. A bus interchange module allows transfer between the separate internal program and data busses in special circumstances. The internal busses are 16-bit, while the ALU and accumulator are 32-bit. A multiplier circuit produces a single state 16.times.16 multiply function separate from the ALU, with 32-bit output to the ALU. One input to the ALU passes through a 0-to-15 bit shifter with sign extension.
REFERENCES:
patent: 4402043 (1983-08-01), Guttag et al.
patent: 4402044 (1983-08-01), McDonough et al.
patent: 4435763 (1984-03-01), Bellay et al.
patent: 4450519 (1984-05-01), Guttag et al.
patent: 4450521 (1984-05-01), McDonough et al.
Caudel Edward R.
Magar Surendar S.
Graham John G.
Mills John G.
Shaw Gareth D.
Texas Instruments Incorporated
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