49 lines
2.4 KiB
Plaintext
49 lines
2.4 KiB
Plaintext
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11. Official commands.
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════════════════════════════
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The Official commands are intended for issue on elements of the
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microprocessor complex different official signals, as the signals of the permit
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(forbid) of the issue of the data on the exits of the chip or record in
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internal registers etc. All these commands are especially specialized and have
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no operands. The Influence turns on those fields of microcommand, which are not
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touched by other groups of the commands.
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1) The command of management of arithmetic-logical device on m/c BC1:
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1. OEY - allow the issue of the result of operations in ALU on data bus;
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by default the issue of the data is suppressed.
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2) The command of device management of shift management on m/c BP2:
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1,2. CEM,CEN - a commands of the permition of recording to registers RM and RN;
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3..6. CEM_C,CEM_Z,CEM_N,CEM_V - writing the mark C(Z,N,V) in register of
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the marks RM.
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3) The Commands of management of device management on m/c BY4:
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1. RLD - a permition of the recording in register of the address/counter
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2. CCE - a permition of the presenting the condition
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3. CI - a prohibition of the forming the address of the following command;
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4) The commands of the management of the device of the processing of the
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interruptions on m/c BH1:
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1. EV - a permition of the issue of the address of the device of the
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interruptions on data bus
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5) The commands of the management of the external devices and memory:
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1. R - a command of the reading from memory
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2. W - a command of the recording in memory
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3. IN - a command of the reception from the external device
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4. OUT - a command of the recording in external device
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5..6. EWH,EWL - a commands of the recording in senior and younger digits
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of the register of the address accordingly. Two commands are incorporated for
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event, when number of digits BD < BA and write the new address in register of
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the address for one tact is impossible. Then the younger part of the address
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on data bus is formed, and, after making the signal EWL it writes in the
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register of the address, and then with senior part of formed address do the
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same.
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7..8. EWA,EWB - a commands of recording in the registers of management of
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the operands ALB RA and RB.
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