42  * and returns the carry (if any) */
48 		/* Clear registers to propagate the carry bit */  in add_scalar()
65 		/* Return the carry bit in a register */  in add_scalar()
91 		/* Step 1: Compute carry*38 */  in fadd()
96 		/* Step 2: Add carry*38 to the original sum */  in fadd()
106 		/* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */  in fadd()
133 		/* Step 1: Compute carry*38 */  in fsub()
138 		/* Step 2: Subtract carry*38 from the original difference */  in fsub()
144 		/* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */  in fsub()
201 		/* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */  in fmul()
219 		/* Step 2: Fold the carry back into dst */  in fmul()
228 		/* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */  in fmul()
313 		/* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */  in fmul2()
331 		/* Step 2: Fold the carry back into dst */  in fmul2()
340 		/* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */  in fmul2()
346 		/* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */  in fmul2()
364 		/* Step 2: Fold the carry back into dst */  in fmul2()
373 		/* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */  in fmul2()
403 		/* Step 1: Compute carry*38 */  in fmul_scalar()
407 		/* Step 2: Fold the carry back into dst */  in fmul_scalar()
416 		/* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */  in fmul_scalar()
529 		/* Step 2: Compute two parallel carry chains */  in fsqr()
564 		/* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */  in fsqr()
582 		/* Step 2: Fold the carry back into dst */  in fsqr()
591 		/* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */  in fsqr()
620 		/* Step 2: Compute two parallel carry chains */  in fsqr2()
660 		/* Step 2: Compute two parallel carry chains */  in fsqr2()
693 		/* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */  in fsqr2()
711 		/* Step 2: Fold the carry back into dst */  in fsqr2()
720 		/* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */  in fsqr2()
726 		/* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */  in fsqr2()
744 		/* Step 2: Fold the carry back into dst */  in fsqr2()
753 		/* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */  in fsqr2()