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The result of running etc/update-copyright.py --this-year, fixing all the files whose mode is changed by the script, plus a build with --enable-maintainer-mode --enable-cgen-maint=yes, then checking out */po/*.pot which we don't update frequently. The copy of cgen was with commit d1dd5fcc38ead reverted as that commit breaks building of bfp opcodes files.
168 lines
4.4 KiB
Plaintext
168 lines
4.4 KiB
Plaintext
@c Copyright (C) 2009-2022 Free Software Foundation, Inc.
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@c This is part of the GAS manual.
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@c For copying conditions, see the file as.texinfo.
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@ifset GENERIC
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@page
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@node SCORE-Dependent
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@chapter SCORE Dependent Features
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@end ifset
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@ifclear GENERIC
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@node Machine Dependencies
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@chapter SCORE Dependent Features
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@end ifclear
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@cindex SCORE processor
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@menu
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* SCORE-Opts:: Assembler options
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* SCORE-Pseudo:: SCORE Assembler Directives
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* SCORE-Syntax:: Syntax
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@end menu
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@node SCORE-Opts
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@section Options
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@cindex options for SCORE
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@cindex SCORE options
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@cindex architectures, SCORE
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@cindex SCORE architectures
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The following table lists all available SCORE options.
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@table @code
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@item -G @var{num}
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This option sets the largest size of an object that can be referenced
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implicitly with the @code{gp} register. The default value is 8.
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@item -EB
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Assemble code for a big-endian cpu
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@item -EL
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Assemble code for a little-endian cpu
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@item -FIXDD
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Assemble code for fix data dependency
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@item -NWARN
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Assemble code for no warning message for fix data dependency
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@item -SCORE5
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Assemble code for target is SCORE5
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@item -SCORE5U
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Assemble code for target is SCORE5U
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@item -SCORE7
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Assemble code for target is SCORE7, this is default setting
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@item -SCORE3
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Assemble code for target is SCORE3
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@item -march=score7
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Assemble code for target is SCORE7, this is default setting
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@item -march=score3
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Assemble code for target is SCORE3
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@item -USE_R1
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Assemble code for no warning message when using temp register r1
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@item -KPIC
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Generate code for PIC. This option tells the assembler to generate
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score position-independent macro expansions. It also tells the
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assembler to mark the output file as PIC.
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@item -O0
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Assembler will not perform any optimizations
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@item -V
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Sunplus release version
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@end table
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@node SCORE-Pseudo
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@section SCORE Assembler Directives
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@cindex directives for SCORE
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@cindex SCORE directives
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A number of assembler directives are available for SCORE. The
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following table is far from complete.
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@table @code
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@item .set nwarn
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Let the assembler not to generate warnings if the source machine
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language instructions happen data dependency.
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@item .set fixdd
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Let the assembler to insert bubbles (32 bit nop instruction /
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16 bit nop! Instruction) if the source machine language instructions
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happen data dependency.
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@item .set nofixdd
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Let the assembler to generate warnings if the source machine
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language instructions happen data dependency. (Default)
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@item .set r1
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Let the assembler not to generate warnings if the source program
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uses r1. allow user to use r1
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@item set nor1
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Let the assembler to generate warnings if the source program uses
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r1. (Default)
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@item .sdata
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Tell the assembler to add subsequent data into the sdata section
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@item .rdata
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Tell the assembler to add subsequent data into the rdata section
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@item .frame "frame-register", "offset", "return-pc-register"
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Describe a stack frame. "frame-register" is the frame register,
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"offset" is the distance from the frame register to the virtual
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frame pointer, "return-pc-register" is the return program register.
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You must use ".ent" before ".frame" and only one ".frame" can be
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used per ".ent".
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@item .mask "bitmask", "frameoffset"
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Indicate which of the integer registers are saved in the current
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function's stack frame, this is for the debugger to explain the
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frame chain.
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@item .ent "proc-name"
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Set the beginning of the procedure "proc_name". Use this directive
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when you want to generate information for the debugger.
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@item .end proc-name
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Set the end of a procedure. Use this directive to generate information
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for the debugger.
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@item .bss
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Switch the destination of following statements into the bss section,
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which is used for data that is uninitialized anywhere.
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@end table
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@node SCORE-Syntax
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@section SCORE Syntax
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@menu
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* SCORE-Chars:: Special Characters
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@end menu
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@node SCORE-Chars
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@subsection Special Characters
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@cindex line comment character, SCORE
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@cindex SCORE line comment character
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The presence of a @samp{#} appearing anywhere on a line indicates the
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start of a comment that extends to the end of that line.
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If a @samp{#} appears as the first character of a line then the whole
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line is treated as a comment, but in this case the line can also be a
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logical line number directive (@pxref{Comments}) or a preprocessor
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control command (@pxref{Preprocessing}).
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@cindex line separator, SCORE
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@cindex statement separator, SCORE
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@cindex SCORE line separator
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The @samp{;} character can be used to separate statements on the same
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line.
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