diff options
Diffstat (limited to '05/tokenize.b')
| -rw-r--r-- | 05/tokenize.b | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/05/tokenize.b b/05/tokenize.b index 809c9ff..56838c5 100644 --- a/05/tokenize.b +++ b/05/tokenize.b @@ -287,6 +287,7 @@ function tokenize fraction = strtoi(&in, 10) ; e.g. to turn 35 into .35, multiply by 10^-2 pow10 = p - in + ;putnln_signed(pow10) if pow10 < -400 goto bad_float :float_no_fraction ; construct the number integer + fraction*10^pow10 @@ -303,16 +304,13 @@ function tokenize exponent = new_exponent significand += right_shift(integer, exponent) :float_no_integer + if *1in == 'e goto float_exponent if *1in == 'E goto float_exponent :float_have_significand_and_exponent if significand == 0 goto float_zero normalize_float(&significand, &exponent) - ; putn(significand) - ; putc(32) - ; putn_signed(exponent) - ; putc(10) ; make number round to the nearest representable float roughly (this is what gcc does) ; this fails for 5e-100 probably because of imprecision, but mostly works significand += 15 @@ -321,6 +319,7 @@ function tokenize exponent += 5 exponent += 52 ; 1001010111... => 1.001010111... n = leftmost_1bit(significand) + exponent += n - 52 ; in most cases, this is 0, but sometimes it turns out to be 1. b = 1 < n significand &= ~b data = significand |