Missing Opcodes for PowerPC in QNX Compiler

I’m using the QNX Momentics 6.3 and I wanted to program a bootloader for the MPC8548 (e500 core). I recognized that the compiler doesn’t understand some essential assembler commands lile tlbwe, dcbtls… Is there any way to activate the commands? I only found the assembler directive “.cpu booke32” but this only understands the tlbwe command with operands (ie tlbwe %r0,%r0,%r0" but the e500 only knows tlbwe without operands. Anyway the dcbtls doesn’t work to with “.cpu booke32”. Any ideas?