R_O4
disp_reg_line(ph, prst, "o0", R_O0, "o4", R_O4);
disp_reg_line(ph, prst, "o0", R_O0, "o4", R_O4);
ps->pr_lwp.pr_reg[R_O4] = cp->user.u_reg[REG_O4];
ps->pr_lwp.pr_reg[R_O4] = cp->user.u_reg[REG_O4];
cp->user.u_reg[REG_O4] = ps->pr_lwp.pr_reg[R_O4];
dst[R_O4] = gregs[REG_O4];
dst[R_O4] = gregs[REG_O4];
dst[R_O4] = (uint64_t)(uint32_t)gregs[REG_O4];
prp[R_O4] = gr[REG_O4];
gr[REG_O4] = prp[R_O4];
dest[R_O4] = SET_LOWER_32(r->r_o4, src[R_O4]);
prp[R_O4] = gr[REG_O4];