diff options
author | Alon Zakai <alonzakai@gmail.com> | 2011-03-21 19:48:24 -0700 |
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committer | Alon Zakai <alonzakai@gmail.com> | 2011-03-21 19:48:24 -0700 |
commit | 98f6e8924d27246f40f50ec3f75084f1f04b6459 (patch) | |
tree | 3df59f43576082ce486d73de8ab5ccc264fdbca2 /src/preamble.js | |
parent | ee9393ae048547f8d0d8aef6c00a197fe00234b0 (diff) |
do not un/reSign constants
Diffstat (limited to 'src/preamble.js')
-rw-r--r-- | src/preamble.js | 28 |
1 files changed, 2 insertions, 26 deletions
diff --git a/src/preamble.js b/src/preamble.js index 2eb745a5..9f457a5c 100644 --- a/src/preamble.js +++ b/src/preamble.js @@ -383,32 +383,8 @@ function intArrayToString(array) { return ret; } -// Converts a value we have as signed, into an unsigned value. For -// example, -1 in int32 would be a very large number as unsigned. -function unSign(value, bits, ignore) { - if (value >= 0) return value; -#if CHECK_SIGNS - if (!ignore) CorrectionsMonitor.note('UnSign'); -#endif - return bits <= 32 ? 2*Math.abs(1 << (bits-1)) + value // Need some trickery, since if bits == 32, we are right at the limit of the bits JS uses in bitshifts - : Math.pow(2, bits) + value; - // TODO: clean up previous line -} - -// Converts a value we have as unsigned, into a signed value. For -// example, 200 in a uint8 would be a negative number. -function reSign(value, bits, ignore) { - if (value <= 0) return value; - var half = bits <= 32 ? Math.abs(1 << (bits-1)) // abs is needed if bits == 32 - : Math.pow(2, bits-1); - if (value >= half) { -#if CHECK_SIGNS - if (!ignore) CorrectionsMonitor.note('ReSign'); -#endif - value = -2*half + value; // Cannot bitshift half, as it may be at the limit of the bits JS uses in bitshifts - } - return value; -} +var unSign = {{{ unSign.toString() }}} +var reSign = {{{ reSign.toString() }}} // === Body === |