fp  = buildReg("F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15 F16 F17 F18 F19 F20 F21 F22 F23 F24 F25 F26 F27 F28 F29 F30")
		sp  = buildReg("SP")
		sb  = buildReg("SB")
		gr  = buildReg("g")
		xer = buildReg("XER")
		// cr  = buildReg("CR")
		// ctr = buildReg("CTR")
		// lr  = buildReg("LR")
		tmp     = buildReg("R31")
		ctxt    = buildReg("R11")
		callptr = buildReg("R12")
		// tls = buildReg("R13")