Basic Macros
long(N) Generates 4-byte value,
long(20) produces 0x 14 00 00 00
betaop(op, ra, rb, rc) Assembles b op instruction
betaopc(op, ra, C, rc) Assembles b opc instruction
betaop(0x20, 0x1, 0x2, 0x3) means r3 <r1> + <r2>
betaopc(0x30, 0x1, 10, 0x2) means r2 <r1> + 10