9.33.2 SCORE Assembler Directives
A number of assembler directives are available for SCORE. The
following table is far from complete.
.set nwarn
- Let the assembler not to generate warnings if the source machine
language instructions happen data dependency.
.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.
.set nofixdd
- Let the assembler to generate warnings if the source machine
language instructions happen data dependency. (Default)
.set r1
- Let the assembler not to generate warnings if the source program
uses r1. allow user to use r1
set nor1
- Let the assembler to generate warnings if the source program uses
r1. (Default)
.sdata
- Tell the assembler to add subsequent data into the sdata section
.rdata
- Tell the assembler to add subsequent data into the rdata section
.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".
.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.
.ent "proc-name"
- Set the beginning of the procedure "proc_name". Use this directive
when you want to generate information for the debugger.
.end proc-name
- Set the end of a procedure. Use this directive to generate information
for the debugger.
.bss
- Switch the destination of following statements into the bss section,
which is used for data that is uninitialized anywhere.