93 строки
3.5 KiB
JavaScript
93 строки
3.5 KiB
JavaScript
// TODO also with >> 1 and >> 3
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// also HEAP*U*, and HEAP8, 16
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function shifty($id2) {
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// $id is a non-ssa, $id2 is a param. both should be replaced with a shifted version
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q(HEAP32[$id >> 2]);
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q(HEAP32[($id + 40) >> 2]);
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q(HEAP32[($id + 80 | 0) >> 2]);
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q(HEAP32[(unknown1 + unknown2 + $id) >> 2]);
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q(HEAP32[(unknown1 + $id + unknown2) >> 2]); // unknowns should be shifted together
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var localUnchanged1 = get(1), localUnchanged2 = get(1);
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q(HEAP32[(localUnchanged1 + $id + localUnchanged2) >> 2]); // unknowns should be shifted together
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q($id >> _something_); // non-fixed shift
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$id = q('..');
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q($id << _somethingElse_); // non-fixed shift
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pause(-1);
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q(HEAP32[$id2 >> 1]);
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q(HEAP32[$id2 >> 1]);
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q(HEAP32[$id2 >> 1]);
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q(HEAP32[$id2 >> 1]);
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q(HEAP32[($id2 + 40) >> 1]);
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q(HEAP32[($id2 + 80 | 0) >> 1]);
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var $id3 = get(74);
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q(HEAP32[$id3 >> 3]);
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q(HEAP32[($id3 + 40) >> 3]);
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q(HEAP32[($id3 + 80 | 0) >> 3]);
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q($id3);
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pause(0);
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// similar, but inside another HEAP
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var _idents = get('abc');
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q(HEAP32[(HEAP32[_idents >> 2] + 8 | 0) >> 2]);
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q(HEAP32[(HEAP32[_idents >> 2] + 8 | 0) >> 2]);
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q(HEAP32[(HEAP32[_idents >> 2] + 8 | 0) >> 2]);
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pause(1);
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// $i's shifts should consolidate (the last should be 0..?
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// since we may have had |0 in the middle!)
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var $sn_addr = get(12), $a_addr = get(999);
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var $i = get(112233);
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q(HEAP32[($a_addr + ((($sn_addr - 1 << 1) + 1 | 0) << 2) | 0) >> 2]);
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q(HEAP32[($a_addr + ((($i - 1 << 1) + 1 | 0) << 2) | 0) >> 2]);
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q(HEAP32[($a_addr + (($i << 1 | 0) << 2) | 0) >> 2]);
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q(HEAP32[($a_addr + ($i << 2)) >> 2]);
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q($a_addr >> 2, z($a_addr >> 2));
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pause(2);
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var $level = HEAP[get(322) >> 2]; // ignore this
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var _dwt_norms_real = get('a'), $orient = get('cheez');
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q(HEAP32[(_dwt_norms_real + $orient * 80 + ($level << 3) | 0) >> 2]);
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q(HEAP32[(_dwt_norms_real + $orient * 80 + ($level << 3) + 4 | 0) >> 2]);
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q(HEAP32[(_dwt_norms_real + $orient * 80 + ($level << 3) + 8 | 0) >> 2]);
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pause(3);
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// reuse $a_addr here
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var $wavelet38 = get(38);
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$k = $a_addr;
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q(HEAPF32[(HEAP32[$wavelet38 >> 2] + ($k << 4) + 8 | 0) >> 2]);
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q(HEAPF32[(HEAP32[$wavelet38 >> 2] + ($k << 4) + 12 | 0) >> 2]);
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q(HEAPF32[(HEAP32[$wavelet38 >> 2] + ($k << 4) + 400 | 0) >> 2]);
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pause(4);
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// reuse $k, which already reuses $a_addr
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var $p = $k, $parameters_addr = get('burger')
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q(HEAP32[($parameters_addr + 5624 + ($p << 2) | 0) >> 2]);
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q(HEAP32[($parameters_addr + 5644 + ($p << 2) | 0) >> 2]);
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q(HEAP32[($parameters_addr + 5664 + ($p << 2) | 0) >> 2]);
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pause(5);
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// loops count as more uses!
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var $res_spec242 = get($real), $cp = get('b'), $tileno = arguments[2];
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q(HEAP32[($parameters_addr + 5624 + (($res_spec242 - 1 | 0) << 2) | 0) >> 2]);
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q(HEAP32[(HEAP32[($cp + 108 | 0) >> 2] + $tileno * 5588 + 420 | 0) >> 2]);
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pause(6);
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q($idx << 1 << 2);
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q(1 << $idx << 1); // Do not turn this into the slower 1 << $idx + 1 (which is identical though)
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print(INDENT + "Entering: _main" + "hi"); // this order should not be modified
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pause(7);
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var $tp = get('tp');
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q($tp >> 2);
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q($tp >> 2);
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q($tp >> 2);
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HEAP32[$H400] = $tp;
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HEAP32[$tp] = 5;
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HEAP32[$tp >> 2] = 5;
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HEAP32[HEAP[$tp >> 2]] = 5;
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HEAP32[HEAP[$tp >> 2] >> 2] = 5;
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pause(7);
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q(go() >> 1 << 1);
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q(go() << 1 >> 1);
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q(go() >> 1 >> 1);
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q(go() << 1 << 1);
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q(go() >> 8 << 8);
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q(go() << 8 >> 8);
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q(go() >> 8 >> 8);
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q(go() << 8 << 8);
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q((go() + 2) >> 2); // the 2 >> 2 can't be simplified
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}
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// EMSCRIPTEN_GENERATED_FUNCTIONS: ["shifty"]
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