GPR_A1
const unsigned r_nc_count = GPR_A1;
UASM_i_LA(&p, GPR_A1, (long)mips_gcr_base);
uasm_i_ld(buf, reg, off, GPR_A1);
uasm_i_lw(buf, reg, off, GPR_A1);
_uasm_i_pref(buf, pref_src_mode, pref_bias_copy_load + off, GPR_A1);
pg_addiu(&buf, GPR_A1, GPR_A1, 2 * off);
pg_addiu(&buf, GPR_A1, GPR_A1, 2 * off);
pg_addiu(&buf, GPR_A1, GPR_A1, 2 * off);