as has following command-line options for the Renesas (formerly Hitachi) / SuperH SH family.
Generate little endian code.
Generate big endian code.
Alter jump instructions for long displacements.
Align sections to 4 byte boundaries, not 16.
Enable sh-dsp insns, and disable sh3e / sh4 insns.
Disable optimization with section symbol for compatibility with Renesas assembler.
Specify the sh4 or sh4a instruction set.
Enable sh-dsp insns, and disable sh3e / sh4 insns.
Enable sh2e, sh3e, sh4, and sh4a insn sets.
Enable sh1, sh2, sh2e, sh3, sh3e, sh4, sh4a, and sh-dsp insn sets.