JPH0242133U - - Google Patents
Info
- Publication number
- JPH0242133U JPH0242133U JP12127288U JP12127288U JPH0242133U JP H0242133 U JPH0242133 U JP H0242133U JP 12127288 U JP12127288 U JP 12127288U JP 12127288 U JP12127288 U JP 12127288U JP H0242133 U JPH0242133 U JP H0242133U
- Authority
- JP
- Japan
- Prior art keywords
- address
- save
- storage means
- command
- storing
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Executing Machine-Instructions (AREA)
Description
図面はこの考案の一実施例の回路構成を示すブ
ロツク図である。
１……マイクロコンピユータ、２……ＲＯＭ、
３……演算用ＲＡＭ、４……ＡＬＵ、５……命令
判断部、６……レジスタ部、６ａ……プログラム
カウンタ、６ｂ……内部スタツク用ポインタ、６
ｃ……外部スタツク用ポインタ、７……内部スタ
ツクメモリ、８……アドレスレジスタ選択部、９
……ＦＡＳ、１０……外部メモリ、１０ａ……ア
ドレス・スタツク・エリア。
The drawing is a block diagram showing the circuit configuration of an embodiment of this invention. 1...Microcomputer, 2...ROM,
3...Arithmetic RAM, 4...ALU, 5...Instruction judgment section, 6...Register section, 6a...Program counter, 6b...Internal stack pointer, 6
c...External stack pointer, 7...Internal stack memory, 8...Address register selection section, 9
...FAS, 10...External memory, 10a...Address stack area.
Claims (1)
イクロコンピユータにおいて、 プログラムの進行に応じて指定されるアドレス
データを記憶する指定アドレス記憶手段と、 この指定アドレス記憶手段の上記アドレスデー
タを退避させる退避命令を出力する命令出力手段
と、 上記アドレスデータを記憶するための内部退避
アドレス記憶手段と、 実行される命令に応じて上記内部退避アドレス
記憶手段または上記外部記憶装置のいずれか一方
を選択する選択手段と、 上記退避命令に応答し、上記選択手段により選
択された上記内部退避アドレス記憶手段または上
記外部記憶装置のいずれか一方に上記アドレスデ
ータを記憶させる退避手段と を具備したことを特徴とするマイクロコンピユ
ータ。[Claims for Utility Model Registration] In a microcomputer to which at least one external storage device can be connected, a specified address storage means for storing address data specified according to the progress of a program; and the above-mentioned address of the specified address storage means. command output means for outputting a save command to save data; internal save address storage means for storing the address data; and either the internal save address storage means or the external storage device according to the executed command. selecting means for selecting one of them; and saving means for storing the address data in either the internal saving address storage means or the external storage device selected by the selecting means in response to the saving command. A microcomputer characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12127288U JPH0242133U (en) | 1988-09-16 | 1988-09-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12127288U JPH0242133U (en) | 1988-09-16 | 1988-09-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0242133U true JPH0242133U (en) | 1990-03-23 |
Family
ID=31368129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12127288U Pending JPH0242133U (en) | 1988-09-16 | 1988-09-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0242133U (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57161936A (en) * | 1981-03-31 | 1982-10-05 | Fujitsu Ltd | Microprgram controlled information processing device |
| JPS598060A (en) * | 1982-07-06 | 1984-01-17 | Citizen Watch Co Ltd | Microprocessor |
| JPS6225333A (en) * | 1985-07-25 | 1987-02-03 | Nec Corp | Microcomputer |
| JPS6289140A (en) * | 1985-10-15 | 1987-04-23 | Mitsubishi Electric Corp | Microprocessor |
| JPH0214322A (en) * | 1988-07-01 | 1990-01-18 | Hitachi Ltd | Program control circuit |
-
1988
- 1988-09-16 JP JP12127288U patent/JPH0242133U/ja active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57161936A (en) * | 1981-03-31 | 1982-10-05 | Fujitsu Ltd | Microprgram controlled information processing device |
| JPS598060A (en) * | 1982-07-06 | 1984-01-17 | Citizen Watch Co Ltd | Microprocessor |
| JPS6225333A (en) * | 1985-07-25 | 1987-02-03 | Nec Corp | Microcomputer |
| JPS6289140A (en) * | 1985-10-15 | 1987-04-23 | Mitsubishi Electric Corp | Microprocessor |
| JPH0214322A (en) * | 1988-07-01 | 1990-01-18 | Hitachi Ltd | Program control circuit |