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diff --git a/gas/doc/c-microblaze.texi b/gas/doc/c-microblaze.texi new file mode 100644 index 0000000000..be27d2c054 --- /dev/null +++ b/gas/doc/c-microblaze.texi @@ -0,0 +1,74 @@ +@c Copyright 2009 +@c Free Software Foundation, Inc. +@c This is part of the GAS manual. +@c For copying conditions, see the file as.texinfo. +@ifset GENERIC +@page +@node MicroBlaze-Dependent +@chapter MicroBlaze Dependent Features +@end ifset +@ifclear GENERIC +@node Machine Dependencies +@chapter MicroBlaze Dependent Features +@end ifclear + +@cindex MicroBlaze architectures +The Xilinx MicroBlaze processor family includes several variants, all using +the same core instruction set. This chapter covers features of the @sc{gnu} +assembler that are specific to the MicroBlaze architecture. For details about +the MicroBlaze instruction set, please see the @cite{MicroBlaze Processor +Reference Guide (UG081)} available at www.xilinx.com. + +@cindex MicroBlaze support +@menu +* MicroBlaze Directives:: Directives for MicroBlaze Processors. +@end menu + +@node MicroBlaze Directives +@section Directives +@cindex MicroBlaze directives +A number of assembler directives are available for MicroBlaze. + +@table @code +@item .data8 @var{expression},... +This directive is an alias for @code{.byte}. Each expression is assembled +into an eight-bit value. + +@item .data16 @var{expression},... +This directive is an alias for @code{.hword}. Each expression is assembled +into an 16-bit value. + +@item .data32 @var{expression},... +This directive is an alias for @code{.word}. Each expression is assembled +into an 32-bit value. + +@item .ent @var{name}[,@var{label}] +This directive is an alias for @code{.func} denoting the start of function +@var{name} at (optional) @var{label}. + +@item .end @var{name}[,@var{label}] +This directive is an alias for @code{.endfunc} denoting the end of function +@var{name}. + +@item .gpword @var{label},... +This directive is an alias for @code{.rva}. The resolved address of @var{label} +is stored in the data section. + +@item .weakext @var{label} +Declare that @var{label} is a weak external symbol. + +@item .rodata +Switch to .rodata section. Equivalent to @code{.section .rodata} + +@item .sdata2 +Switch to .sdata2 section. Equivalent to @code{.section .sdata2} + +@item .sdata +Switch to .sdata section. Equivalent to @code{.section .sdata} + +@item .bss +Switch to .bss section. Equivalent to @code{.section .bss} + +@item .sbss +Switch to .sbss section. Equivalent to @code{.section .sbss} +@end table |