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Turbo51 - Free Pascal compiler for 8051

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1. Turbo Pascal Compiler Written in Delphi
(Compiler Design/Compilers)
Have you ever wondered how can you start writing your own compiler? What lies beneath Turbo Pascal, the most popular Pascal compiler? Would it be possible to get (equivalent) source code of some popular ...
2. 8051 C Compiler
(Documentation/8051)
If you don't like Pascal programming language then you are probably looking for C. And there is a great free C compiler for 8051, SDCC - Small Device C Compiler. What is SDCC? SDCC ...
3. Payment Canceled
(Compiler Design/Payment)
... page and send a message. Turbo Pascal Compiler written in Turbo Pascal Turbo Pascal Compiler written in Delphi  ...
4. 8051 Assembler Procedures
(Documentation/Procedures)
Here you can see some examples of procedures written entirely in 8051 assembly language. At the end of each procedure Turbo51 adds only RET instruction (or RETI in interrupt procedure). ...
5. Procedure at absolute address
(Documentation/Procedures)
You can force placing a procedure at absolute address with the absolute directive. This way you can also reserve some bytes at fixed addresses in code segment. ...
Pascal Programming Language Wikipedia article about Pascal programming language: history, description, language constructs, compilers, standards and more. Pascal Standards ...
7. Compiler Switches And Directives
(Documentation/General)
Compiler switches: (defaults are shown below) Compiler switch Description A- AbsoluteInstructions Off Generate absolute instructions (ACALL/AJMP) B- ...
8. Turbo51 Command Line Syntax
(Documentation/General)
Turbo51 is a command line console application. This means that it has no graphical user interface, menus or windows. It must be run from a console with parameters: pascal source file to ...
9. Methods
(Documentation/Assembler)
Methods are always reentrant. Before a call to the method is made the following is pushed on the XDATA stack: Address for String result (for functions which return ...
10. Reentrant procedures
(Documentation/Assembler)
For reentrant procedures all parameters are pushed on XDATA stack. Functions return simple result in first register set (R5R4R3R2). For functions which return String ...
11. Turbo51 Objects
(Documentation/General)
Objects are data structures that merge pascal records and procedures called methods, i.e. data and code together. In order to use objects in Turbo51 you need XDATA memory. The syntax ...
12. Compiler Internals - General
(Documentation/Assembler)
Pascal Compiler internals If you are interested in Turbo Pascal internals and would like to see the source code of some popular commercial Pascal compiler then check Turbo Pascal ...
13. Turbo51 Files
(Documentation/General)
Turbo51 supports files - a general framework for IO handling. However, you have to provide the low level IO procedures. Files can be untyped, typed (File of SomeType) and of type ...
14. System Functions
(Documentation/Procedures)
Abs Function Abs (X: Integer): Integer; Function Abs (X: Real): Real; Abs returns the absolute value of a variable. The result of the function ...
15. System procedures
(Documentation/Procedures)
... A - default for Turbo51 pascal functions) and MUST preserve registers R2, R3, R4, R5, R8, R9. WriteProc must be a non-reentrant procedure with no parameters and MUST preserve registers R2, R3, R6, R7. ...
16. Turbo51 Memory Organization
(Documentation/General)
CODE memory By default the maximum code size is $10000 bytes (64 KB). This can be changed in the main program with the $M directive. IDATA memory By default there is no IDATA ...
17. System Unit
(Documentation/General)
System unit implements Turbo51 runtime library and defines some special function registers (SFR), bits and interrupt addresses that are present in all microcontrollers based on 8051 ...
18. 8051 Interrupts in Turbo51
(Documentation/Procedures)
Interrupts are procedures declared with the Interrupt directive and interrupt address. In this example Timer0 is a constant defined in the System unit. For any procedure we can optionally ...
19. 8051 Assembler statement
(Documentation/Assembler)
Turbo51 assembler statement is very similar to 8051 assembler. You can use all instructions from the 8051 (MCS-51) instruction set. Labels starting with @ don't ...
20. Variables
(Documentation/Declarations)
Turbo51 variables can have memory type directives DATA, IDATA, or XDATA which overrides default memory type for variables (IDATA memory with addresses starting from $80 is not available ...
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