AEDIT-86User's Guide

AEDIT-86 Variables

The following ·values relate to the margin and indentation settings used by PARAGRAPH and SET Autonl commands:

IMARGN The value of current indent margin setting.

LMARGN The value of current left margin setting.

RMARGN The value of current right margin setting.

The following values are returned by the UOI-call OQ$GETSTIME:

DATE

Date returned by DQ$GETSTIME in decimal format mmddyy.

TIME

Time returned by OQ$GETSTIME in decimal format hhmmss: note

 

that some systems always return 0 for the time function.

The following are other values:

LSTFND Logical value-true if the last find or replace string was found. (Note that an infinite FIND (IF) sets this variable to TRUE if at least one FIND succeeded.)

NSTLVL Nesting level of the currently executing macro, console input is level O.

6.3Usage and Interpretation of Global Variables in Macros

When the value of any AEOIT-86 variable is fetched during MACRO Create, the actual value is used for the current activation. A reference to this variable is inserted into the macro definition. Therefore, in a future activation of the macro, the value of the variable at the time of macro activation will be used, not the value of the variable at the time of macro definition.

For example, if you have the following macro:

I(NSERT) < FETS) 7 (ESC)

and S7 ="abc" at the time the macro was defined, abc is used for the current activa- tion. If the definition of S7 is changed to xyz and the above macro is again activated, xyz is inserted.

6.4Summary of AEDIT-86 Variables

6.4.1Read-Only Variables

The following is an alphabetic list of the read-only string variables. No assignment of values is allowed.

S8

Up to 60 characters of the Block buffer.

SE

The name of the current edited file.

SG

The name of the last file specified in the GET command.

SI

The name of the main input file.

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Intel Usage and Interpretation of Global Variables in Macros, Summary of AEDIT-86 Variables, Read-Only Variables, Time

AEDIT-86 specifications

The Intel AEDIT-86, also known as the Intel 8086, is a notable microprocessor that played a critical role in shaping the computing landscape. Released in 1978, it was Intel's first 16-bit microprocessor, setting the stage for the x86 architecture that continues to influence modern computing.

One of the main features of the AEDIT-86 is its 16-bit architecture, which allows it to process data in larger chunks compared to its 8-bit predecessors. This capability not only improves performance but also increases the amount of memory that can be addressed, allowing for a maximum of 1 MB of RAM. This was a significant advancement at the time, enabling more complex software and operating systems to run efficiently.

The AEDIT-86 is built on a 3-micron process technology, which was innovative for its time and contributed to its performance capabilities. The microprocessor operates at a clock speed of up to 5 MHz, which allowed it to execute more instructions per second than previous generations of processors. This speed, combined with its wide data bus (16 bits), enables the processor to handle a larger volume of information more quickly.

Intel incorporated several key technologies in the AEDIT-86, including segmentation. This feature divides the memory into different segments, making it easier for programs to access data and improving memory management. The AEDIT-86 also supports a minimum of four 64 KB segments, which enhances the organization and access of programs and data in memory.

Another significant aspect of the AEDIT-86 is its compatibility with the existing 8080 and 8085 instruction sets, which facilitated easier migration for developers and helped the processor gain traction in the market. This backward compatibility allowed existing software to be ported to the new platform with minimal modification.

Furthermore, the Intel AEDIT-86 introduced a powerful instruction set that includes both integer and string manipulation commands, paving the way for more versatile programming. The instruction set architecture (ISA) of the AEDIT-86 supports both high-level programming languages and low-level assembly language, offering flexibility for various applications.

In summary, the Intel AEDIT-86 is a groundbreaking microprocessor known for its 16-bit architecture, advanced segmentation technology, and compatibility with earlier instruction sets. Its introduction marked the beginning of the x86 architecture, which has influenced countless processors and computing systems that followed. The AEDIT-86's features and technologies were instrumental in the evolution of personal computing, laying the groundwork for future innovations in the industry.