X-Git-Url: https://oss.titaniummirror.com/gitweb?p=msp430-binutils.git;a=blobdiff_plain;f=gas%2Fdoc%2Fc-score.texi;fp=gas%2Fdoc%2Fc-score.texi;h=08201154aee9d9750d35211f7f9153e77224a745;hp=0000000000000000000000000000000000000000;hb=d5da4f291af551c0b8b79e1d4a9b173d60e5c10e;hpb=7b5ea4fcdf2819e070665ab5610f8b48e3867c10 diff --git a/gas/doc/c-score.texi b/gas/doc/c-score.texi new file mode 100644 index 0000000..0820115 --- /dev/null +++ b/gas/doc/c-score.texi @@ -0,0 +1,142 @@ +@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 SCORE-Dependent +@chapter SCORE Dependent Features +@end ifset +@ifclear GENERIC +@node Machine Dependencies +@chapter SCORE Dependent Features +@end ifclear + +@cindex SCORE processor +@menu +* SCORE-Opts:: Assembler options +* SCORE-Pseudo:: SCORE Assembler Directives +@end menu + +@node SCORE-Opts +@section Options + +@cindex options for SCORE +@cindex SCORE options +@cindex architectures, SCORE +@cindex SCORE architectures + +The following table lists all available SCORE options. + +@table @code +@item -G @var{num} +This option sets the largest size of an object that can be referenced +implicitly with the @code{gp} register. The default value is 8. + +@item -EB +Assemble code for a big-endian cpu + +@itemx -EL +Assemble code for a little-endian cpu + +@item -FIXDD +Assemble code for fix data dependency + +@item -NWARN +Assemble code for no warning message for fix data dependency + +@item -SCORE5 +Assemble code for target is SCORE5 + +@itemx -SCORE5U +Assemble code for target is SCORE5U + +@itemx -SCORE7 +Assemble code for target is SCORE7, this is default setting + +@itemx -SCORE3 +Assemble code for target is SCORE3 + +@item -march=score7 +Assemble code for target is SCORE7, this is default setting + +@item -march=score3 +Assemble code for target is SCORE3 + +@item -USE_R1 +Assemble code for no warning message when using temp register r1 + +@item -KPIC +Generate code for PIC. This option tells the assembler to generate +score position-independent macro expansions. It also tells the +assembler to mark the output file as PIC. + +@item -O0 +Assembler will not perform any optimizations + +@item -V +Sunplus release version + +@end table + +@node SCORE-Pseudo +@section SCORE Assembler Directives + +@cindex directives for SCORE +@cindex SCORE directives +A number of assembler directives are available for SCORE. The +following table is far from complete. + +@table @code +@item .set nwarn +Let the assembler not to generate warnings if the source machine +language instructions happen data dependency. + +@item .set fixdd +Let the assembler to insert bubbles (32 bit nop instruction / +16 bit nop! Instruction) if the source machine language instructions +happen data dependency. + +@item .set nofixdd +Let the assembler to generate warnings if the source machine +language instructions happen data dependency. (Default) + +@item .set r1 +Let the assembler not to generate warnings if the source program +uses r1. allow user to use r1 + +@item set nor1 +Let the assembler to generate warnings if the source program uses +r1. (Default) + +@item .sdata +Tell the assembler to add subsequent data into the sdata section + +@item .rdata +Tell the assembler to add subsequent data into the rdata section + +@item .frame "frame-register", "offset", "return-pc-register" +Describe a stack frame. "frame-register" is the frame register, +"offset" is the distance from the frame register to the virtual +frame pointer, "return-pc-register" is the return program register. +You must use ".ent" before ".frame" and only one ".frame" can be +used per ".ent". + +@item .mask "bitmask", "frameoffset" +Indicate which of the integer registers are saved in the current +function's stack frame, this is for the debugger to explain the +frame chain. + +@item .ent "proc-name" +Set the beginning of the procedure "proc_name". Use this directive +when you want to generate information for the debugger. + +@item .end proc-name +Set the end of a procedure. Use this directive to generate information +for the debugger. + +@item .bss +Switch the destination of following statements into the bss section, +which is used for data that is uninitialized anywhere. + +@end table