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This function is used to read or write (instruction) byte 4 of the argument with sign extension.

Reading:

Syntax

i8 sb4 (real arg)

arg

Variable whose contents you want to know.

From RTE 33.7.1 it can be any expression

Result

Returns the contents of the fifth byte of the argument arg with the sign

Validity

Rule, Task

Note

From RTE 33.9.0 access to a non-existing byte returns error

Writing (Instruction):

Syntax

sb4 (real arg) = i8 value

arg

Variable in which the value value will be imposed

value

Value to be imposed

Validity

Rule, Task

Note


 

  

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