Imagecraft c compiler and development environment for the atmel avr

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ICCV8 for AVR – C Compiler for Atmel AVR.ascii “strings”.asciz “strings”These directives are used to define strings, which must be enclosed in a delimiter pair.The delimiter can be any character as long as the beginning delimiter matches theclosing delimiter. Within the delimiters, any printable ASCII characters are valid, plusthe following C-style escape characters, all of which start with a backslash (\):\e escape\b backspace\f form feed\n line feed\r carriage return\t tab\ character with value equal to theoctal digits.asciz adds a NUL character (\0) at the end. It is acceptable to embed \0 within thestring.Examples: .asciz “Hello World\n”.asciz “123\0456”.byte [,]*.word [,]*.long [,]*These directives define constants. The three directives denote byte constant, wordconstant (2 bytes), and long word constant (4 bytes), respectively. Word and longword constants are output in little endian format, the format used by the AVRmicrocontrollers. Note that .long can only have constant values as operands. Theother two may contain relocatable expressions.Example: .byte 1, 2, 3.word label,foo.blkb .blkw .blkl These directives reserve space without giving them values. The number of itemsreserved is given by the operand.184
ICCV8 for AVR – C Compiler for Atmel AVR.define Defines a textual substitution of a register name. Whenever symbol is used inside anexpression when a register name is expected, it is replaced with value. For example:.define quot R15mov quot,R16.elseForms a conditional clause together with a preceding .if and following .endif. Ifthe if clause conditional is true, then all the assembly statements from the .else tothe ending .endif (the else clause) are ignored. Otherwise, if the if clauseconditional is false, then the if clause is ignored and the else clause is processedby the assembler. See .if..endifEnds a conditional statement. See .if and .else..endmacroEnds a macro statement. See .macro..eaddrUse only for the M256x and the ‘ (back quote) operator. Generates the 3-byte codeaddress of the symbol. For example:.eaddr ‘function_name = Defines a numeric constant value for a symbol.Example: foo = 5.if If the symbol name has a non-zero value, then the following code, up to either the.else statement or the .endif statement (whichever occurs first), is assembled.Conditionals can be nested up to 10 levels. For example:.if condlds R10,a185
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Imagecraft c compiler and development environment for the atmel avr

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