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9.37.4 PRU Machine Directives
.align expression [, expression]

This is the generic .align directive, however this aligns to a power of two.
.word expression

Create an aligned constant 4 bytes in size.
.dword expression

Create an aligned constant 8 bytes in size.
.2byte expression

Create an unaligned constant 2 bytes in size.
.4byte expression

Create an unaligned constant 4 bytes in size.
.8byte expression

Create an unaligned constant 8 bytes in size.
.16byte expression

Create an unaligned constant 16 bytes in size.
.set no_warn_regname_label

Do not output warnings when a label name matches a register name. Equivalent to passing the -mno-warn-regname-label command-line option.