base:kernal_floating_point_mathematics
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| Both sides previous revisionPrevious revisionNext revision | Previous revisionNext revisionBoth sides next revision | ||
| base:kernal_floating_point_mathematics [2017-10-22 15:22] – [7.3 Integer to FP] shrydar | base:kernal_floating_point_mathematics [2019-10-14 07:59] – error/typo corrected silverdr | ||
|---|---|---|---|
| Line 30: | Line 30: | ||
| **$69** holds the exponent\\ | **$69** holds the exponent\\ | ||
| **$6a-$6d** holds the mantissa\\ | **$6a-$6d** holds the mantissa\\ | ||
| - | **$63** holds the sign in bit 7\\ | + | **$6e** holds the sign in bit 7\\ |
| Line 432: | Line 432: | ||
| lda value ;get guess based on argument | lda value ;get guess based on argument | ||
| + | clc | ||
| ror | ror | ||
| bcs sqrtadd | bcs sqrtadd | ||
| ldx #$80 | ldx #$80 | ||
| - | sta result+1 | + | stx result+1 |
| sqrtadd adc #$40 | sqrtadd adc #$40 | ||
| sta result | sta result | ||
base/kernal_floating_point_mathematics.txt · Last modified: 2020-12-06 20:48 by pararaum