JPS55146550A - High speed branch controlling system - Google Patents
High speed branch controlling systemInfo
- Publication number
- JPS55146550A JPS55146550A JP5152079A JP5152079A JPS55146550A JP S55146550 A JPS55146550 A JP S55146550A JP 5152079 A JP5152079 A JP 5152079A JP 5152079 A JP5152079 A JP 5152079A JP S55146550 A JPS55146550 A JP S55146550A
- Authority
- JP
- Japan
- Prior art keywords
- instruction
- branch
- register
- array
- field
- 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
- Advance Control (AREA)
- Executing Machine-Instructions (AREA)
Abstract
PURPOSE: To make it possible not to perform an unnecessary instruction reading, by checking up the contents of a field R1 swiftly and deciding whether the branch is successful or not, when an advance control of a conditional branch instruction (BCT instruction) is started.
CONSTITUTION: In a register array 16 having a bit corresponding to each register No. of a register array 15 which forms a general register group is written through a "1" detection circuit 14 the check result showing whether branch of a data written in the afore-said array 15 is allowed or not. When a BCT instruction is detected by a field OP of an instruction of an instruction register 1, an address of a branch destination is operated by a data of the register array 15 which has been read out by the value of fields X2 and B2, and the value of a field D2. Moreover, the array 16 is read out by a field R1, and it is input to AND gates 19, 20. As a result of the foregoing, a branch unsuccessful signal 24 or a branch sucessful signal 25 is output.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5152079A JPS55146550A (en) | 1979-04-27 | 1979-04-27 | High speed branch controlling system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5152079A JPS55146550A (en) | 1979-04-27 | 1979-04-27 | High speed branch controlling system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55146550A true JPS55146550A (en) | 1980-11-14 |
Family
ID=12889279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5152079A Pending JPS55146550A (en) | 1979-04-27 | 1979-04-27 | High speed branch controlling system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55146550A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6341932A (en) * | 1985-08-22 | 1988-02-23 | Nec Corp | Branching instruction processing device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS522140A (en) * | 1975-06-24 | 1977-01-08 | Hitachi Ltd | Information processing apparatus |
-
1979
- 1979-04-27 JP JP5152079A patent/JPS55146550A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS522140A (en) * | 1975-06-24 | 1977-01-08 | Hitachi Ltd | Information processing apparatus |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6341932A (en) * | 1985-08-22 | 1988-02-23 | Nec Corp | Branching instruction processing device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS57117027A (en) | Signal sending and receiving circuit | |
JPS55146550A (en) | High speed branch controlling system | |
US4747039A (en) | Apparatus and method for utilizing an auxiliary data memory unit in a data processing system having separate program and data memory units | |
KR910006852A (en) | Memory control system and method | |
JPS5731049A (en) | Information processing equipment | |
JPS5694596A (en) | Memory control system | |
JPS54107717A (en) | Counting display system | |
SE7704047L (en) | KIT AND DEVICE FOR ELIMINATION OF THE EFFECT OF NOISE ON CONTROL SIGNALS IN ELECTROSTAT COPYERS | |
JPS56121155A (en) | Address coincidence detection circuit | |
SU576588A1 (en) | Magnetic digital recording apparatus | |
SU955009A2 (en) | Data input device | |
JPS5640957A (en) | Magnetic tape control system | |
JPS56162151A (en) | Information processing device | |
JPS5537634A (en) | Integrated-circuit device | |
JPS56155462A (en) | Voice output system for electronic register | |
JPS5583960A (en) | Paragraph associater | |
JPS55140972A (en) | Coordinate value checking circuit | |
JPS54101630A (en) | Input/output information check system | |
JPS5710571A (en) | Photoelectric hybrid type interpolation processor | |
JPS5781650A (en) | Data processor | |
JPS56168251A (en) | Data transfer buffer system | |
JPS57111747A (en) | Search sequence control system | |
SE9601346L (en) | Process and system for transferring data between processors | |
JPS6488655A (en) | Memory circuit for picture processing | |
JPS55139699A (en) | Error detection system of memory unit |