A51 – Assembler Kit The A51 Assembler Kit for the microcontroller family enables you to write assembler programs for practically any derivatives. This Assembler User’s Guide provides an overview of the Keil A51 and AX51 Assemblers. It contains the following chapters. Introduction provides a brief. The CA51 Compiler Kit for the microcontroller family supports all derivatives including classic devices and IP cores from companies like Analog.

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Assembling Programs specifies how to run the assembler and generate object files. Functions that are frequently invoked from multiple banks should be located in the common area.

This allows exact display of program. It also allows you to generate different applications from one assembly source file. The linker automatically selects the appropriate run-time library and links only those library modules that are required. It supports all derivatives. This chapter discusses the directives that are available.

Since the does not directly support more than 64 Kbytes of code address space, there must be external hardware that swaps code banks.

A51 produces a listing file with line numbers as well as the time and date of the translation. The Standard Macro Processor is the easier macro processor to use.


A51 Macro Assembler

You can dramatically improve system performance by grouping interdependent functions in the same bank. Customers who purchased this product also bought:. Listing File Following is an example listing file generated by the assembler. Important information This site uses cookies to store information on your computer.

Ax51 User’s Guide: D. Assembler Differences

It translates symbolic assembler language mnemonics into executable machine code. The position of each error is clearly marked. Tell someone you know about this product. The register banks used, and the total number of warnings and errors asssembler at the end of the listing file.

By continuing to use our site, you consent to our cookies. By carefully grouping functions in the different banks, you can create very large, efficient applications.

D. Assembler Differences

Each input module and the library modules included in the application are listed. Software support for the external bank switching hardware includes a short assembly file you can edit for your specific hardware platform. The common area contains program sections and constants that must be available at all times.

It generates a listing file optionally with symbol table and cross reference. When your C program calls a function located in a different bank, it switches the bank, jumps to the desired function, restores the previous bank when the function completesand returns execution to the calling routine.


Notify me of updates to Assembler Keil. The A51 Assembler supports two different macro processors:. List of all our Products. Another powerful feature of the A51 Assembler macro processors is conditional assembly depending on command line directives or assembler symbols.

These directives are useful when using indirectly called functions or when disabling overlaying for debugging. Write a review on this product!

A D. Assembler Differences

It supports all derivatives. The listing contains a source line number and the object code generated by each source line. Writing Assembly Programs describes the components of an assembly program and some aspects of writing assembly programs. This site uses cookies to store information on your computer. Macro Processor discusses how to use the macro expansion capabilities of the assembler. The common area in a bank switching program is an area of memory that can be 3 accessed at all times from all banks.

All the above components also are included as part of the Compiler and Assembler package, as well as the Professional Developer’s Kit package.