_R_A1
#define TF_A1 _R_A1
tf->tf_regs[_R_A1] = ksi->ksi_trap;
regs->r_regs[_R_A1],
{ "a1", (long *)&ddb_regs.r_regs[_R_A1], DB_SETF_REGS, NULL },
gdb_regs[ 5] = regs->r_regs[_R_A1]; /* A1 */
uint32_t used = 1 | __BIT(_R_A0) | __BIT(_R_A1) | __BIT(_R_A2) | __BIT(_R_A3);
tf->tf_regs[_R_A1] = 0;
[_R_A0] = a0, [_R_A1] = a1, [_R_A2] = a2, [_R_A3] = a3,
case _R_A1: /* a1 */
regs[_R_A0], regs[_R_A1], regs[_R_A2], regs[_R_A3],
tf->tf_regs[_R_A1] = (intptr_t)&sfp->sf_si;
tf->tf_regs[_R_A1] = (intptr_t)&sf->sf_si;
tf->tf_regs[_R_A0], tf->tf_regs[_R_A1], tf->tf_regs[_R_A2]);
tf->tf_regs[_R_A1] = 0;