JPS55124853A - Memory extension system for information processor - Google Patents
Memory extension system for information processorInfo
- Publication number
- JPS55124853A JPS55124853A JP3312079A JP3312079A JPS55124853A JP S55124853 A JPS55124853 A JP S55124853A JP 3312079 A JP3312079 A JP 3312079A JP 3312079 A JP3312079 A JP 3312079A JP S55124853 A JPS55124853 A JP S55124853A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- address
- jump
- instruction
- execution
- 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
- Executing Machine-Instructions (AREA)
Abstract
PURPOSE: To enable to simply execute the jump to chip address, for an arbitrary memory chip, by tentatively delaying the execution at the replacement of memory chip.
CONSTITUTION: When jump is desired from an arbitrary address in the memory M1 to another arbitrary address in the memory M2, after designating the memory to be jumped with the input and output port output instruction, the jump instruction is executed and the address output A is altered to new address. By delaying the execution of program by the execution time of this jump instruction, memory chip can be selected without any procedure appearently and software development is made easier. When the extended address signal designating the memory M1 is detected to the input and output port P, the latches 51W53 are operated and the instruction cycle can be delayed by the jump instruction time from M1 to M2.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3312079A JPS55124853A (en) | 1979-03-20 | 1979-03-20 | Memory extension system for information processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3312079A JPS55124853A (en) | 1979-03-20 | 1979-03-20 | Memory extension system for information processor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55124853A true JPS55124853A (en) | 1980-09-26 |
Family
ID=12377764
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3312079A Pending JPS55124853A (en) | 1979-03-20 | 1979-03-20 | Memory extension system for information processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55124853A (en) |
-
1979
- 1979-03-20 JP JP3312079A patent/JPS55124853A/en active Pending
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