diff options
Diffstat (limited to 'src/preamble.js')
| -rw-r--r-- | src/preamble.js | 35 |
1 files changed, 28 insertions, 7 deletions
diff --git a/src/preamble.js b/src/preamble.js index 9370fa54..d0391af5 100644 --- a/src/preamble.js +++ b/src/preamble.js @@ -344,13 +344,6 @@ var tempValue, tempInt, tempBigInt, tempInt2, tempBigInt2, tempPair, tempBigIntI #if I64_MODE == 1 var tempI64, tempI64b; #endif -#if DOUBLE_MODE == 1 -#if USE_TYPED_ARRAYS == 2 -var tempDoubleBuffer = new ArrayBuffer(8); -var tempDoubleI32 = new Int32Array(tempDoubleBuffer); -var tempDoubleF64 = new Float64Array(tempDoubleBuffer); -#endif -#endif function abort(text) { print(text + ':\n' + (new Error).stack); @@ -369,6 +362,7 @@ function assert(condition, text) { // makeSetValue is done at compile-time and generates the needed // code then, whereas this function picks the right code at // run-time. +// Note that setValue and getValue only do *aligned* writes and reads! function setValue(ptr, value, type, noSafe) { type = type || 'i8'; @@ -648,6 +642,33 @@ Module['HEAPF32'] = HEAPF32; STACK_ROOT = STACKTOP = Runtime.alignMemory(STATICTOP); STACK_MAX = STACK_ROOT + TOTAL_STACK; +#if DOUBLE_MODE == 1 +#if USE_TYPED_ARRAYS == 2 +var tempDoublePtr = Runtime.alignMemory(STACK_MAX, 8); +var tempDoubleI8 = HEAP8.subarray(tempDoublePtr); +var tempDoubleI32 = HEAP32.subarray(tempDoublePtr >> 2); +var tempDoubleF32 = HEAPF32.subarray(tempDoublePtr >> 2); +var tempDoubleF64 = new Float64Array(HEAP8.buffer).subarray(tempDoublePtr >> 3); +function copyTempFloat(ptr) { // functions, because inlining this code is increases code size too much + tempDoubleI8[0] = HEAP8[ptr]; + tempDoubleI8[1] = HEAP8[ptr+1]; + tempDoubleI8[2] = HEAP8[ptr+2]; + tempDoubleI8[3] = HEAP8[ptr+3]; +} +function copyTempDouble(ptr) { + tempDoubleI8[0] = HEAP8[ptr]; + tempDoubleI8[1] = HEAP8[ptr+1]; + tempDoubleI8[2] = HEAP8[ptr+2]; + tempDoubleI8[3] = HEAP8[ptr+3]; + tempDoubleI8[4] = HEAP8[ptr+4]; + tempDoubleI8[5] = HEAP8[ptr+5]; + tempDoubleI8[6] = HEAP8[ptr+6]; + tempDoubleI8[7] = HEAP8[ptr+7]; +} +STACK_MAX = tempDoublePtr + 8; +#endif +#endif + STATICTOP = alignMemoryPage(STACK_MAX); function callRuntimeCallbacks(callbacks) { |