BASS_GPR
controls[i + 0].gpr[z * 2 + j] = BASS_GPR + z * 2 + j;
OP(icode, &ptr, iMAC0, C_00000000, C_00000000, GPR(d), GPR(BASS_GPR + 0 + j));
OP(icode, &ptr, iMACMV, GPR(k+1), GPR(k), GPR(k+1), GPR(BASS_GPR + 4 + j));
OP(icode, &ptr, iMACMV, GPR(k), GPR(d), GPR(k), GPR(BASS_GPR + 2 + j));
OP(icode, &ptr, iMACMV, GPR(k+3), GPR(k+2), GPR(k+3), GPR(BASS_GPR + 8 + j));
OP(icode, &ptr, iMAC0, GPR(k+2), GPR_ACCU, GPR(k+2), GPR(BASS_GPR + 6 + j));