FRAME_A1
{ "a1", &ddb_regs.tf_regs[FRAME_A1], FCN_NULL },
FRAME_A1,
regp->r_regs[R_A1] = framep->tf_regs[FRAME_A1];
framep->tf_regs[FRAME_A1] = regp->r_regs[R_A1];
frame->tf_regs[FRAME_A1] = (u_int64_t)sip;
tfp->tf_regs[FRAME_A1] = 0;
FRAME_A1,
args[1] = framep->tf_regs[FRAME_A1];
FRAME_A0, FRAME_A1, FRAME_A2, FRAME_A3,