JPS5674736A - Communication controlling device by microprogram controlling system - Google Patents
Communication controlling device by microprogram controlling systemInfo
- Publication number
- JPS5674736A JPS5674736A JP15271479A JP15271479A JPS5674736A JP S5674736 A JPS5674736 A JP S5674736A JP 15271479 A JP15271479 A JP 15271479A JP 15271479 A JP15271479 A JP 15271479A JP S5674736 A JPS5674736 A JP S5674736A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- function
- microinstruction
- turned
- microprogram
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Computer And Data Communications (AREA)
- Communication Control (AREA)
Abstract
PURPOSE: To make the same function available for the microprogram, by constituting the system so that the control can be returned to the next step of the microinstruction which has requested execution of the function, after execution of the requested function has been completed.
CONSTITUTION: In case when the microinstruction read by the memory register 12 has been the CALL instruction, the logical product is taken as to the processing start address part of the microinstruction and the address setting signal, and in case of coincidence, a start signal is provided to the optional hardware functions 20, 21. When the functions 20, 21 are not loaded, however, the CALL instruction is executed and the subroutines S1, T1 are executed. When the start signal is provided to the function 20, the signal S1 is turned on, the arithmetic circuit 18 is stopped, the signal A is turned on, the next instruction address is set to the instruction address register 10, the next microinstruction is read out, and it is frozen to the register 12. When the function 20 executes the same processing as the subroutine S1, and it has been completed, the signal S1 is turned off, and the unit is returned to the regular operation.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15271479A JPS5674736A (en) | 1979-11-26 | 1979-11-26 | Communication controlling device by microprogram controlling system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15271479A JPS5674736A (en) | 1979-11-26 | 1979-11-26 | Communication controlling device by microprogram controlling system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5674736A true JPS5674736A (en) | 1981-06-20 |
Family
ID=15546542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15271479A Pending JPS5674736A (en) | 1979-11-26 | 1979-11-26 | Communication controlling device by microprogram controlling system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5674736A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59194266A (en) * | 1983-04-18 | 1984-11-05 | Jeol Ltd | Fast fourier transforming device |
-
1979
- 1979-11-26 JP JP15271479A patent/JPS5674736A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59194266A (en) * | 1983-04-18 | 1984-11-05 | Jeol Ltd | Fast fourier transforming device |
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