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()
90 		/* Step 1: Compute carry*38 */  in fadd()
95 		/* Step 2: Add carry*38 to the original sum */  in fadd()
105 		/* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */  in fadd()
131 		/* Step 1: Compute carry*38 */  in fsub()
136 		/* Step 2: Subtract carry*38 from the original difference */  in fsub()
142 		/* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */  in fsub()
252 		/* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */  in fmul()
270 		/* Step 2: Fold the carry back into dst */  in fmul()
279 		/* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */  in fmul()
470 		/* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */  in fmul2()
488 		/* Step 2: Fold the carry back into dst */  in fmul2()
497 		/* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */  in fmul2()
503 		/* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */  in fmul2()
521 		/* Step 2: Fold the carry back into dst */  in fmul2()
530 		/* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */  in fmul2()
561 		/* Step 1: Compute carry*38 */  in fmul_scalar()
565 		/* Step 2: Fold the carry back into dst */  in fmul_scalar()
574 		/* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */  in fmul_scalar()
693 		/* Step 2: Compute two parallel carry chains */  in fsqr()
739 		/* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */  in fsqr()
757 		/* Step 2: Fold the carry back into dst */  in fsqr()
766 		/* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */  in fsqr()
802 		/* Step 2: Compute two parallel carry chains */  in fsqr2()
860 		/* Step 2: Compute two parallel carry chains */  in fsqr2()
904 		/* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */  in fsqr2()
922 		/* Step 2: Fold the carry back into dst */  in fsqr2()
931 		/* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */  in fsqr2()
937 		/* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */  in fsqr2()
955 		/* Step 2: Fold the carry back into dst */  in fsqr2()
964 		/* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */  in fsqr2()