9.36.3 Assembler Directives

In addition to the common directives, the RL78 adds these:

.double
Output a constant in “double” format, which is either a 32-bit or a 64-bit floating point value, depending upon the setting of the -m32bit-doubles | -m64bit-doubles command line option.
.bss
Select the BSS section.
.3byte
Output a constant value in a three byte format.
.int
.word
Output a constant value in a four byte format.