421   int i, j, bits, ret = 0, wstart, window;  in mod_exp_recp()  local
490   wstart = bits - 1; /* The top bit of the window */  in mod_exp_recp()
500     if (BN_is_bit_set(p, wstart) == 0) {  in mod_exp_recp()
506       if (wstart == 0) {  in mod_exp_recp()
509       wstart--;  in mod_exp_recp()
520       if (wstart - i < 0) {  in mod_exp_recp()
523       if (BN_is_bit_set(p, wstart - i)) {  in mod_exp_recp()
547     wstart -= wend + 1;  in mod_exp_recp()
549     if (wstart < 0) {  in mod_exp_recp()
606   int i, j, bits, ret = 0, wstart, window;  in BN_mod_exp_mont()  local
685   wstart = bits - 1; /* The top bit of the window */  in BN_mod_exp_mont()
709     if (BN_is_bit_set(p, wstart) == 0) {  in BN_mod_exp_mont()
713       if (wstart == 0) {  in BN_mod_exp_mont()
716       wstart--;  in BN_mod_exp_mont()
726       if (wstart - i < 0) {  in BN_mod_exp_mont()
729       if (BN_is_bit_set(p, wstart - i)) {  in BN_mod_exp_mont()
753     wstart -= wend + 1;  in BN_mod_exp_mont()
755     if (wstart < 0) {  in BN_mod_exp_mont()