ASSEMBLEUR Z80 PDF

It is a convenience directive for defining least significant byte first two byte words, as the Z80 uses them. Multiple expressions, separated by commas, may be. ZASM is a compiler/assembler and monitor (including disassembler and debugger) for the Z80 CPU. It runs under Linux (probably also. Uses. The easiest way to put data directly into your program. Note that since the z80 processor is little-endian, loading into a bit register from.

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This is what seek is for. At the start, the current address is set to 0.

Assembler directives

Almost any name is possible without escape characters, because of the quote rules. It allows definition of one or more literal bytes, as well as strings of bytes.

Using this directive more than once can be useful to create code which is to be executed at the same address, for example when the memory is mapped. At the start of each page, the code can set the starting address to the mapping address.

In the following example, the output contains 4 bytes: Everything after this directive is ignored. The filename is then read, until the ending quote, which is the same as the starting quote. 8z0 have requested to be able to overwrite the generated output.

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After this definition, it is possible to use the macro, like this: If the argument of seek is greater than the current output size, the file is extended with assejbleur.

Z80 Assembler Syntax

Org only changes the assembler’s idea of “where” it assejbleur. If val is omitted, it defaults to 0. This is mostly useful in combination with incbin. Multiple expressions, separated by commas, may be specified. It is a convenience directive for defining least significant byte first two byte words, as the Z80 uses them.

Strings of bytes should be between double quotes. Normally, the first directive in a program is org, to set the starting address.

generale assembleur z80 &copy _public_domain_ ()

All definitions should be separated by commas. It takes one or two arguments, num and val. At the end of the program, it is allowed to use the “end” directive. The argument is given in the same way as for include. Otherwise it is not touched, which means that if you use these directives, a successfull assembler execution does not imply that all the wssembleur is correct.

The first non-whitespace character after the include directive is considered the starting quote. It allows the included binary to be “patched”.

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It will seek in the output file and start overwriting previous output. There is no need to do this. Parts of the code can be omitted using these conditional statements. Z08 these directives it is possible to define new commands, which will output defined code. Code which is not assembled is checked for a correct command. As in C but without thethis includes an other source file. This sets the assembler’s idea of the current address. Note that no code is generated by this directive, so if padding bytes are required, they must be inserted using defs.

It reserves num bytes of space and initializes them to val. Incbin stands for “include binary”.

It takes one argument, which must evaluate to a value in the first pass it may not use labels which are defined later. This can be used to put some comments at the end. It allows any binary data to be included verbatim into assenbleur output.

The previously defined pages are not overwritten.

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