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diff --git a/binutils-2.24/gas/doc/c-aarch64.texi b/binutils-2.24/gas/doc/c-aarch64.texi deleted file mode 100644 index 60190063..00000000 --- a/binutils-2.24/gas/doc/c-aarch64.texi +++ /dev/null @@ -1,281 +0,0 @@ -@c Copyright 2009, 2010, 2011, 2012 Free Software Foundation, Inc. -@c Contributed by ARM Ltd. -@c This is part of the GAS manual. -@c For copying conditions, see the file as.texinfo. -@c man end - -@ifset GENERIC -@page -@node AArch64-Dependent -@chapter AArch64 Dependent Features -@end ifset - -@ifclear GENERIC -@node Machine Dependencies -@chapter AArch64 Dependent Features -@end ifclear - -@cindex AArch64 support -@cindex Thumb support -@menu -* AArch64 Options:: Options -* AArch64 Syntax:: Syntax -* AArch64 Floating Point:: Floating Point -* AArch64 Directives:: AArch64 Machine Directives -* AArch64 Opcodes:: Opcodes -* AArch64 Mapping Symbols:: Mapping Symbols -@end menu - -@node AArch64 Options -@section Options -@cindex AArch64 options (none) -@cindex options for AArch64 (none) - -@c man begin OPTIONS -@table @gcctabopt - -@cindex @code{-EB} command line option, AArch64 -@item -EB -This option specifies that the output generated by the assembler should -be marked as being encoded for a big-endian processor. - -@cindex @code{-EL} command line option, AArch64 -@item -EL -This option specifies that the output generated by the assembler should -be marked as being encoded for a little-endian processor. - -@cindex @code{-mabi=} command line option, AArch64 -@item -mabi=@var{abi} -Specify which ABI the source code uses. The recognized arguments -are: @code{ilp32} and @code{lp64}, which decides the generated object -file in ELF32 and ELF64 format respectively. The default is @code{lp64}. - -@end table -@c man end - -@node AArch64 Syntax -@section Syntax -@menu -* AArch64-Chars:: Special Characters -* AArch64-Regs:: Register Names -* AArch64-Relocations:: Relocations -@end menu - -@node AArch64-Chars -@subsection Special Characters - -@cindex line comment character, AArch64 -@cindex AArch64 line comment character -The presence of a @samp{//} on a line indicates the start of a comment -that extends to the end of the current line. If a @samp{#} appears as -the first character of a line, the whole line is treated as a comment. - -@cindex line separator, AArch64 -@cindex statement separator, AArch64 -@cindex AArch64 line separator -The @samp{;} character can be used instead of a newline to separate -statements. - -@cindex immediate character, AArch64 -@cindex AArch64 immediate character -The @samp{#} can be optionally used to indicate immediate operands. - -@node AArch64-Regs -@subsection Register Names - -@cindex AArch64 register names -@cindex register names, AArch64 -Please refer to the section @samp{4.4 Register Names} of -@samp{ARMv8 Instruction Set Overview}, which is available at -@uref{http://infocenter.arm.com}. - -@node AArch64-Relocations -@subsection Relocations - -@cindex relocations, AArch64 -@cindex AArch64 relocations -@cindex MOVN, MOVZ and MOVK group relocations, AArch64 -Relocations for @samp{MOVZ} and @samp{MOVK} instructions can be generated -by prefixing the label with @samp{#:abs_g2:} etc. -For example to load the 48-bit absolute address of @var{foo} into x0: - -@smallexample - movz x0, #:abs_g2:foo // bits 32-47, overflow check - movk x0, #:abs_g1_nc:foo // bits 16-31, no overflow check - movk x0, #:abs_g0_nc:foo // bits 0-15, no overflow check -@end smallexample - -@cindex ADRP, ADD, LDR/STR group relocations, AArch64 -Relocations for @samp{ADRP}, and @samp{ADD}, @samp{LDR} or @samp{STR} -instructions can be generated by prefixing the label with -@samp{#:pg_hi21:} and @samp{#:lo12:} respectively. - -For example to use 33-bit (+/-4GB) pc-relative addressing to -load the address of @var{foo} into x0: - -@smallexample - adrp x0, #:pg_hi21:foo - add x0, x0, #:lo12:foo -@end smallexample - -Or to load the value of @var{foo} into x0: - -@smallexample - adrp x0, #:pg_hi21:foo - ldr x0, [x0, #:lo12:foo] -@end smallexample - -Note that @samp{#:pg_hi21:} is optional. - -@smallexample - adrp x0, foo -@end smallexample - -is equivalent to - -@smallexample - adrp x0, #:pg_hi21:foo -@end smallexample - -@node AArch64 Floating Point -@section Floating Point - -@cindex floating point, AArch64 (@sc{ieee}) -@cindex AArch64 floating point (@sc{ieee}) -The AArch64 architecture uses @sc{ieee} floating-point numbers. - -@node AArch64 Directives -@section AArch64 Machine Directives - -@cindex machine directives, AArch64 -@cindex AArch64 machine directives -@table @code - -@c AAAAAAAAAAAAAAAAAAAAAAAAA -@c BBBBBBBBBBBBBBBBBBBBBBBBBB - -@cindex @code{.bss} directive, AArch64 -@item .bss -This directive switches to the @code{.bss} section. - -@c CCCCCCCCCCCCCCCCCCCCCCCCCC -@c DDDDDDDDDDDDDDDDDDDDDDDDDD -@c EEEEEEEEEEEEEEEEEEEEEEEEEE -@c FFFFFFFFFFFFFFFFFFFFFFFFFF -@c GGGGGGGGGGGGGGGGGGGGGGGGGG -@c HHHHHHHHHHHHHHHHHHHHHHHHHH -@c IIIIIIIIIIIIIIIIIIIIIIIIII -@c JJJJJJJJJJJJJJJJJJJJJJJJJJ -@c KKKKKKKKKKKKKKKKKKKKKKKKKK -@c LLLLLLLLLLLLLLLLLLLLLLLLLL - -@cindex @code{.ltorg} directive, AArch64 -@item .ltorg -This directive causes the current contents of the literal pool to be -dumped into the current section (which is assumed to be the .text -section) at the current location (aligned to a word boundary). -@code{GAS} maintains a separate literal pool for each section and each -sub-section. The @code{.ltorg} directive will only affect the literal -pool of the current section and sub-section. At the end of assembly -all remaining, un-empty literal pools will automatically be dumped. - -Note - older versions of @code{GAS} would dump the current literal -pool any time a section change occurred. This is no longer done, since -it prevents accurate control of the placement of literal pools. - -@c MMMMMMMMMMMMMMMMMMMMMMMMMM - -@c NNNNNNNNNNNNNNNNNNNNNNNNNN -@c OOOOOOOOOOOOOOOOOOOOOOOOOO - -@c PPPPPPPPPPPPPPPPPPPPPPPPPP - -@cindex @code{.pool} directive, AArch64 -@item .pool -This is a synonym for .ltorg. - -@c QQQQQQQQQQQQQQQQQQQQQQQQQQ -@c RRRRRRRRRRRRRRRRRRRRRRRRRR - -@cindex @code{.req} directive, AArch64 -@item @var{name} .req @var{register name} -This creates an alias for @var{register name} called @var{name}. For -example: - -@smallexample - foo .req w0 -@end smallexample - -@c SSSSSSSSSSSSSSSSSSSSSSSSSS - -@c TTTTTTTTTTTTTTTTTTTTTTTTTT - -@c UUUUUUUUUUUUUUUUUUUUUUUUUU - -@cindex @code{.unreq} directive, AArch64 -@item .unreq @var{alias-name} -This undefines a register alias which was previously defined using the -@code{req} directive. For example: - -@smallexample - foo .req w0 - .unreq foo -@end smallexample - -An error occurs if the name is undefined. Note - this pseudo op can -be used to delete builtin in register name aliases (eg 'w0'). This -should only be done if it is really necessary. - -@c VVVVVVVVVVVVVVVVVVVVVVVVVV - -@c WWWWWWWWWWWWWWWWWWWWWWWWWW -@c XXXXXXXXXXXXXXXXXXXXXXXXXX -@c YYYYYYYYYYYYYYYYYYYYYYYYYY -@c ZZZZZZZZZZZZZZZZZZZZZZZZZZ - -@end table - -@node AArch64 Opcodes -@section Opcodes - -@cindex AArch64 opcodes -@cindex opcodes for AArch64 -@code{@value{AS}} implements all the standard AArch64 opcodes. It also -implements several pseudo opcodes, including several synthetic load -instructions. - -@table @code - -@cindex @code{LDR reg,=<expr>} pseudo op, AArch64 -@item LDR = -@smallexample - ldr <register> , =<expression> -@end smallexample - -The constant expression will be placed into the nearest literal pool (if it not -already there) and a PC-relative LDR instruction will be generated. - -@end table - -For more information on the AArch64 instruction set and assembly language -notation, see @samp{ARMv8 Instruction Set Overview} available at -@uref{http://infocenter.arm.com}. - - -@node AArch64 Mapping Symbols -@section Mapping Symbols - -The AArch64 ELF specification requires that special symbols be inserted -into object files to mark certain features: - -@table @code - -@cindex @code{$x} -@item $x -At the start of a region of code containing AArch64 instructions. - -@cindex @code{$d} -@item $d -At the start of a region of data. - -@end table |