diff options
| -rw-r--r-- | 412print-float-decimal.mu | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/412print-float-decimal.mu b/412print-float-decimal.mu index ab17a031..00514f21 100644 --- a/412print-float-decimal.mu +++ b/412print-float-decimal.mu @@ -44,12 +44,18 @@ fn test-print-float-decimal-approximate-normal { clear-screen screen var eighth/xmm0: float <- rational 1, 8 print-float-decimal-approximate screen, eighth, 3 - check-screen-row screen, 1, "0.125 ", "F - test-print-float-decimal-approximate-normal 0.1" + check-screen-row screen, 1, "0.125 ", "F - test-print-float-decimal-approximate-normal 0.125" # 0.0625; start using scientific notation clear-screen screen var sixteenth/xmm0: float <- rational 1, 0x10 print-float-decimal-approximate screen, sixteenth, 3 - check-screen-row screen, 1, "6.25e-2 ", "F - test-print-float-decimal-approximate-normal 0.625" + check-screen-row screen, 1, "6.25e-2 ", "F - test-print-float-decimal-approximate-normal 0.0625" + # sqrt(2); truncate floats with lots of digits after the decimal but not too many before + clear-screen screen + var two-f/xmm0: float <- rational 2, 1 + var sqrt-2/xmm0: float <- square-root two-f + print-float-decimal-approximate screen, sqrt-2, 3 + check-screen-row screen, 1, "1.414 ", "F - test-print-float-decimal-approximate-normal √2" } # print whole integers without decimals @@ -454,8 +460,16 @@ fn print-float-buffer screen: (addr screen), _buf: (addr array byte), n: int, dp print-string screen, "0" } var i/eax: int <- copy 0 + # bounds = min(n, dp+3) + var limit/edx: int <- copy dp + limit <- add 3 { - compare i, n + compare limit, n + break-if-<= + limit <- copy n + } + { + compare i, limit break-if->= # print '.' if necessary compare i, dp |