Add support for seb
/seh
instructions from mips32r2
#273
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These instructions are found specifically on PlayStation Portable and they are backported to its processor from the mips32r2 specs.
SEH
is a single instruction that replaces the combosll DST_REG, SRC_REG, 0x10
andsra DST_REG, DST_REG, 0x10
to perform as16
cast. Same concept forSEB
but when a cast tos8
is required.