diff options
Diffstat (limited to 'new-luxc/source/luxc/lang/translation/js/runtime.jvm.lux')
-rw-r--r-- | new-luxc/source/luxc/lang/translation/js/runtime.jvm.lux | 1096 |
1 files changed, 1096 insertions, 0 deletions
diff --git a/new-luxc/source/luxc/lang/translation/js/runtime.jvm.lux b/new-luxc/source/luxc/lang/translation/js/runtime.jvm.lux new file mode 100644 index 000000000..c3c00fde9 --- /dev/null +++ b/new-luxc/source/luxc/lang/translation/js/runtime.jvm.lux @@ -0,0 +1,1096 @@ +(.module: + lux + (lux (data text/format) + (macro [code] + ["s" syntax #+ syntax:]))) + +(type: #export JS Text) + +(type: Expression JS) + +(type: Statement JS) + +(def: prefix Text "LuxRuntime") + +(def: #export unit Expression (%t "\u0000")) + +(def: (flag value) + (-> Bool JS) + (if value + (%t "") + "null")) + +(def: #export (variant tag last? value) + (-> Nat Bool Expression Expression) + (format "[" (%i (nat-to-int tag)) "," (flag last?) "," value "]")) + +(def: none + Expression + (variant +0 false unit)) + +(def: some + (-> Expression Expression) + (variant +1 true)) + +(def: left + (-> Expression Expression) + (variant +0 false)) + +(def: right + (-> Expression Expression) + (variant +1 true)) + +(type: Runtime JS) + +(def: (runtime-name name) + (-> Text Text) + (format prefix "$" name)) + +(def: (feature name definition) + (-> Text (-> Text Expression) Statement) + (format "var " name " = " (definition name) ";\n")) + +(syntax: (runtime-implementation-name [runtime-name s.local-symbol]) + (wrap (list (code.local-symbol (format "__" runtime-name))))) + +(template: (runtime: <lux-name> <js-name> <js-definition>) + (def: #export <lux-name> Text (runtime-name <js-name>)) + (`` (def: (~~ (runtime-implementation-name <lux-name>)) + Runtime + (feature <lux-name> + (function [(~' @)] + <js-definition>))))) + +(runtime: lux//try "runTry" + (format "(function " @ "(op) {" + (format "try {" + (format "return " (right "op(null)") ";") + "}" + "catch(ex) {" + (format "return " (left "ex.toString()") ";") + "}") + "})")) + +(runtime: lux//program-args "programArgs" + (format "(function " @ "() {" + (format "if(typeof process !== 'undefined' && process.argv) {" + (format (format "var result = " none ";") + "for(var idx = process.argv.length-1; idx >= 0; idx--) {" + (format "result = " (some "[process.argv[idx],result]") ";") + "}") + (format "return result;") + "}" + "else {" + (format "return " none ";") + "}") + "})")) + +(def: runtime//lux + Runtime + (format __lux//try + __lux//program-args)) + +(runtime: product//left "product_left" + (format "(function " @ "(product,index) {" + "var index_min_length = (index+1);" + "if(product.length > index_min_length) {" + ## No need for recursion + "return product[index];" + "}" + "else {" + ## Needs recursion + "return " @ "(product[product.length - 1], (index_min_length - product.length));" + "}" + "})")) + +(runtime: product//right "product_right" + (format "(function " @ "(product,index) {" + "var index_min_length = (index+1);" + "if(product.length === index_min_length) {" + ## Last element. + "return product[index];" + "}" + "else if(product.length < index_min_length) {" + ## Needs recursion + "return " @ "(product[product.length - 1], (index_min_length - product.length));" + "}" + "else {" + ## Must slice + "return product.slice(index);" + "}" + "})")) + +(runtime: sum//get "sum_get" + (let [no-match "return null;" + extact-match "return sum[2];" + test-recursion (format "if(sum[1] === '') {" + ## Must recurse. + "return " @ "(sum[2], (wantedTag - sum[0]), wantsLast);" + "}" + "else { " no-match " }")] + (format "(function " @ "(sum,wantedTag,wantsLast) {" + "if(wantedTag === sum[0]) {" + (format "if(sum[1] === wantsLast) {" extact-match "}" + "else {" test-recursion "}") + "}" + (format "else if(wantedTag > sum[0]) {" test-recursion "}") + (format "else if(wantedTag < sum[0] && wantsLast === '') {" + "return [(sum[0]-wantedTag),sum[1],sum[2]];" + "}") + "else { " no-match " }" + "})"))) + +(def: runtime//adt + Runtime + (format __product//left + __product//right + __sum//get)) + +(template: (bit-operation: <lux-name> <js-name> <op>) + (runtime: <lux-name> <js-name> + (format "(function " @ "(input,mask) {" + "return " int//new "(input.H " <op> " mask.H, input.L " <op> " mask.L);" + "})"))) + +(bit-operation: bit//and "andI64" "&") +(bit-operation: bit//or "orI64" "|") +(bit-operation: bit//xor "xorI64" "^") + +(runtime: bit//not "notI64" + (format "(function " @ "(i64) {" + "return " int//new "(~i64.H,~i64.L);" + "})")) + +(runtime: bit//count "countI64" + (format "(function " @ "(input) {" + "var hs = (input.H).toString(2);" + "var ls = (input.L).toString(2);" + "var num1s = hs.concat(ls).replace(/0/g,'').length;" + "return " int//from-number "(num1s);" + "})")) + +(runtime: bit//shift-left "shlI64" + (format "(function " @ "(input,shift) {" + "shift &= 63;" + (format "if(shift === 0) {" + "return input;" + "}" + "else {" + (format "if (shift < 32) {" + "var high = (input.H << shift) | (input.L >>> (32 - shift));" + "var low = input.L << shift;" + "return " int//new "(high, low);" + "}" + "else {" + "var high = (input.L << (shift - 32));" + "return " int//new "(high, 0);" + "}") + "}") + "})")) + +(runtime: bit//signed-shift-right "shrI64" + (format "(function " @ "(input,shift) {" + "shift &= 63;" + (format "if(shift === 0) {" + "return input;" + "}" + "else {" + (format "if (shift < 32) {" + "var high = input.H >> shift;" + "var low = (input.L >>> shift) | (input.H << (32 - shift));" + "return " int//new "(high, low);" + "}" + "else {" + "var low = (input.H >> (shift - 32));" + "var high = input.H >= 0 ? 0 : -1;" + "return " int//new "(high, low);" + "}") + "}") + "})")) + +(runtime: bit//shift-right "ushrI64" + (format "(function " @ "(input,shift) {" + "shift &= 63;" + (format "if(shift === 0) {" + "return input;" + "}" + "else {" + (format "if (shift < 32) {" + "var high = input.H >>> shift;" + "var low = (input.L >>> shift) | (input.H << (32 - shift));" + "return " int//new "(high, low);" + "}" + "else if(shift === 32) {" + "return " int//new "(0, input.H);" + "}" + "else {" + "var low = (input.H >>> (shift - 32));" + "return " int//new "(0, low);" + "}") + "}") + "})")) + +(def: runtime//bit + Runtime + (format __bit//and + __bit//or + __bit//xor + __bit//not + __bit//count + __bit//shift-left + __bit//signed-shift-right + __bit//shift-right)) + +(runtime: int//2^16 "TWO_PWR_16" + "(1 << 16)") + +(runtime: int//2^32 "TWO_PWR_32" + (format "(" int//2^16 " * " int//2^16 ")")) + +(runtime: int//2^64 "TWO_PWR_64" + (format "(" int//2^32 " * " int//2^32 ")")) + +(runtime: int//2^63 "TWO_PWR_63" + (format "(" int//2^64 " / 2)")) + +(runtime: int//unsigned-low "getLowBitsUnsigned" + (format "(function " @ "(i64) {" + "return (i64.L >= 0) ? i64.L : (" int//2^32 " + i64.L);" + "})")) + +(runtime: int//to-number "toNumberI64" + (format "(function " @ "(i64) {" + "return (i64.H * " int//2^32 ") + " @ "(i64);" + "})")) + +(runtime: int//zero "ZERO" + "{ H: (0|0), L: (0|0)}") + +(runtime: int//new "makeI64" + (format "(function " @ "(high,low) {" + "return { H: (high|0), L: (low|0)};" + "})")) + +(runtime: int//min "MIN_VALUE_I64" + "{ H: (0x80000000|0), L: (0|0)}") + +(runtime: int//max "MAX_VALUE_I64" + "{ H: (0x7FFFFFFF|0), L: (0xFFFFFFFF|0)}") + +(runtime: int//one "ONE" + "{ H: (0|0), L: (1|0)}") + +(runtime: int//= "eqI64" + (format "(function " @ "(l,r) {" + "return (l.H === r.H) && (l.L === r.L);" + "})")) + +(runtime: int//+ "addI64" + (format "(function " @ "(l,r) {" + "var l48 = l.H >>> 16;" + "var l32 = l.H & 0xFFFF;" + "var l16 = l.L >>> 16;" + "var l00 = l.L & 0xFFFF;" + + "var r48 = r.H >>> 16;" + "var r32 = r.H & 0xFFFF;" + "var r16 = r.L >>> 16;" + "var r00 = r.L & 0xFFFF;" + + "var x48 = 0, x32 = 0, x16 = 0, x00 = 0;" + "x00 += l00 + r00;" + "x16 += x00 >>> 16;" + "x00 &= 0xFFFF;" + "x16 += l16 + r16;" + "x32 += x16 >>> 16;" + "x16 &= 0xFFFF;" + "x32 += l32 + r32;" + "x48 += x32 >>> 16;" + "x32 &= 0xFFFF;" + "x48 += l48 + r48;" + "x48 &= 0xFFFF;" + + "return " int//new "((x48 << 16) | x32, (x16 << 16) | x00);" + "})")) + +(runtime: int//negate "negateI64" + (format "(function " @ "(i64) {" + (format "if(" int//= "(" int//min ",i64)) {" + "return " int//min ";" + "}") + (format "else {" + "return " int//+ "(" bit//not "(i64)," int//one ");" + "}") + "})")) + +(runtime: int//from-number "fromNumberI64" + (format "(function " @ "(num) {" + (format "if(isNaN(num)) {" + "return " int//zero ";" + "}") + (format "else if(num <= -" int//2^63 ") {" + "return " int//min ";" + "}") + (format "else if((num + 1) >= " int//2^63 ") {" + "return " int//max ";" + "}") + (format "else if(num < 0) {" + "return " int//negate "(" @ "(-num));" + "}") + (format "else {" + "return " int//new "((num / " int//2^32 "), (num % " int//2^32 "));" + "}") + "})")) + +(runtime: int//- "subI64" + (format "(function " @ "(l,r) {" + "return " int//+ "(l, " int//negate "(r));" + "})")) + +(runtime: int//* "mulI64" + (format "(function " @ "(l,r) {" + "if (l.H < 0) {" + (format "if (r.H < 0) {" + ## Both are negative + "return " @ "( " int//negate "(l), " int//negate "(r));" + "}" + "else {" + ## Left is negative + "return " int//negate "(" @ "( " int//negate "(l),r));" + "}") + "}" + "else if (r.H < 0) {" + ## Right is negative + "return " int//negate "(" @ "(l, " int//negate "(r)));" + "}" + ## Both are positive + "else {" + "var l48 = l.H >>> 16;" + "var l32 = l.H & 0xFFFF;" + "var l16 = l.L >>> 16;" + "var l00 = l.L & 0xFFFF;" + + "var r48 = r.H >>> 16;" + "var r32 = r.H & 0xFFFF;" + "var r16 = r.L >>> 16;" + "var r00 = r.L & 0xFFFF;" + + "var x48 = 0, x32 = 0, x16 = 0, x00 = 0;" + "x00 += l00 * r00;" + "x16 += x00 >>> 16;" + "x00 &= 0xFFFF;" + "x16 += l16 * r00;" + "x32 += x16 >>> 16;" + "x16 &= 0xFFFF;" + "x16 += l00 * r16;" + "x32 += x16 >>> 16;" + "x16 &= 0xFFFF;" + "x32 += l32 * r00;" + "x48 += x32 >>> 16;" + "x32 &= 0xFFFF;" + "x32 += l16 * r16;" + "x48 += x32 >>> 16;" + "x32 &= 0xFFFF;" + "x32 += l00 * r32;" + "x48 += x32 >>> 16;" + "x32 &= 0xFFFF;" + "x48 += (l48 * r00) + (l32 * r16) + (l16 * r32) + (l00 * r48);" + "x48 &= 0xFFFF;" + + "return " int//new "((x48 << 16) | x32, (x16 << 16) | x00);" + "}" + "})")) + +(runtime: int//< "ltI64" + (format "(function " @ "(l,r) {" + "var ln = l.H < 0;" + "var rn = r.H < 0;" + "if(ln && !rn) { return true; }" + "if(!ln && rn) { return false; }" + "return (" int//- "(l,r).H < 0);" + "})")) + +(runtime: int/// "divI64" + (format "(function " @ "(l,r) {" + (format "if((r.H === 0) && (r.L === 0)) {" + ## Special case: R = 0 + "throw new Error('Cannot divide by zero!');" + "}" + "else if((l.H === 0) && (l.L === 0)) {" + ## Special case: L = 0 + "return l;" + "}") + (format "if(" int//= "(l," int//min ")) {" + ## Special case: L = MIN + (format "if(" int//= "(r," int//one ") || " int//= "(r, " int//negate "(" int//one "))) {" + ## Special case: L = MIN, R = 1|-1 + "return " int//min ";" + "}" + ## Special case: L = R = MIN + "else if(" int//= "(r," int//min ")) {" + "return " int//one ";" + "}" + ## Special case: L = MIN + "else {" + "var halfL = " bit//signed-shift-right "(l,1);" + "var approx = " bit//shift-left "(" @ "(halfL,r)," int//one ");" + (format "if((approx.H === 0) && (approx.L === 0)) {" + (format "if(r.H < 0) {" + "return " int//one ";" + "}" + "else {" + "return " int//negate "(" int//one ");" + "}") + "}" + "else {" + "var rem = " int//- "(l," int//* "(r,approx));" + "return " int//+ "(approx," @ "(rem,r));" + "}") + "}") + "}" + "else if(" int//= "(r," int//min ")) {" + ## Special case: R = MIN + "return " int//new "(0,0);" + "}") + ## Special case: negatives + (format "if(l.H < 0) {" + (format "if(r.H < 0) {" + ## Both are negative + "return " @ "( " int//negate "(l), " int//negate "(r));" + "}" + "else {" + ## Only L is negative + "return " int//negate "(" @ "( " int//negate "(l),r));" + "}") + "}" + "else if(r.H < 0) {" + ## R is negative + "return " int//negate "(" @ "(l, " int//negate "(r)));" + "}") + ## Common case + (format "var res = " int//zero ";" + "var rem = l;" + (format "while(" int//< "(r,rem) || " int//= "(r,rem)) {" + "var approx = Math.max(1, Math.floor(" int//to-number "(rem) / " int//to-number "(r)));" + "var log2 = Math.ceil(Math.log(approx) / Math.LN2);" + "var delta = (log2 <= 48) ? 1 : Math.pow(2, log2 - 48);" + "var approxRes = " int//from-number "(approx);" + "var approxRem = " int//* "(approxRes,r);" + (format "while((approxRem.H < 0) || " int//< "(rem,approxRem)) {" + "approx -= delta;" + "approxRes = " int//from-number "(approx);" + "approxRem = " int//* "(approxRes,r);" + "}") + (format "if((approxRes.H === 0) && (approxRes.L === 0)) {" + "approxRes = " int//one ";" + "}") + "res = " int//+ "(res,approxRes);" + "rem = " int//- "(rem,approxRem);" + "}") + "return res;") + "})")) + +(runtime: int//% "remI64" + (format "(function " @ "(l,r) {" + "return " int//- "(l," int//* "(" int/// "(l,r),r));" + "})")) + +(def: runtime//int + Runtime + (format __int//2^16 + __int//2^32 + __int//2^64 + __int//2^63 + __int//unsigned-low + __int//zero + __int//new + __int//min + __int//max + __int//one + __int//= + __int//+ + __int//negate + __int//to-number + __int//from-number + __int//- + __int//* + __int//< + __int/// + __int//%)) + +(runtime: nat//< "ltN64" + (format "(function " @ "(l,r) {" + "var li = " int//+ "(l," int//min ");" + "var ri = " int//+ "(r," int//min ");" + "return " int//< "(li,ri);" + "})")) + +(runtime: nat//div-word "divWord" + (format "(function " @ "(result, n, d) {" + "var dLong = " int//new "(0,d);" + (format "if (" int//= "(dLong," int//one ")) {" + (format "result[0] = n.L;" + "result[1] = 0;" + "return") + "}" + "else {" + ## Approximate the quotient and remainder + (format "var q = " int/// "(" bit//shift-right "(n,1)," bit//shift-right "(dLong,1));" + "var r = " int//- "(n," int//* "(q,dLong));" + ## Correct the approximation + (format "while(" int//< "(r," int//zero ")) {" + "r = " int//+ "(r,dLong);" + "q = " int//- "(q," int//one ");" + "}") + (format "while(" int//< "(dLong,r) || " int//= "(dLong,r)) {" + "r = " int//- "(r,dLong);" + "q = " int//+ "(q," int//one ");" + "}") + "result[0] = q.L;" + "result[1] = r.L;" + ) + "}") + "})")) + +(runtime: nat//shift-left|primitive "primitiveShiftLeftBigInt" + (format "(function " @ "(input,shift) {" + "var output = input.slice();" + "var shift2 = 32 - shift;" + (format "for(var i = 0, c = output[i], m = (i + (input.length - 1)); i < m; i++) {" + "var b = c;" + "c = output[i+1];" + "output[i] = (b << shift) | (c >>> shift2);" + "}") + "output[(input.length - 1)] <<= shift;" + "return output;" + "})")) + +(runtime: nat//shift-right|primitive "primitiveShiftRightBigInt" + (format "(function " @ "(input,shift) {" + "var output = input.slice();" + "var shift2 = 32 - shift;" + (format "for(var i = (input.length - 1), c = output[i]; i > 0; i--) {" + "var b = c;" + "c = output[i-1];" + "output[i] = (c << shift2) | (b >>> shift);" + "}") + "output[0] >>>= shift;" + "return output;" + "})")) + +(runtime: nat//shift-left "shiftLeftBigInt" + (format "(function " @ "(input,shift) {" + "var shiftInts = shift >>> 5;" + "var shiftBits = shift & 0x1F;" + "var bitsInHighWord = " bit//count "(" int//new "(input[0],0));" + (format "if(shift <= (32 - bitsInHighWord)) {" + "var shifted = " bit//shift-left "(" int//new "(input[0],input[1]),shiftBits);" + "return [shifted.H,shifted.L];" + "}") + "var inputLen = input[0] === 0 ? 1 : 2;" + "var newLen = inputLen + shiftInts + 1;" + (format "if(shiftBits <= (32 - bitsInHighWord)) {" + "newLen--;" + "}") + (format "if(input.length < newLen) {" + ## The array must grow + "input = [0|0,input[0],input[1]];" + "}") + (format "if(nBits == 0) {" + "return input;" + "}") + (format "if(shiftBits <= (32 - bitsInHighWord)) {" + "return " nat//shift-left|primitive "(input,shiftBits);" + "}" + "else {" + "return " nat//shift-right|primitive "(input,(32 - shiftBits));" + "}") + "})")) + +(runtime: nat//shift-right "shiftRightBigInt" + (format "(function " @ "(input,shift) {" + "var shiftInts = shift >>> 5;" + "var shiftBits = shift & 0x1F;" + "if(shiftBits === 0) { return input; }" + "var bitsInHighWord = " bit//count "(" int//new "(input[0],0));" + (format "if(shiftBits >= bitsInHighWord) {" + "return " nat//shift-left|primitive "(input,(32-shiftBits));" + "}" + "else {" + "return " nat//shift-right|primitive "(input,shiftBits);" + "}") + "})")) + +(runtime: nat//mul-sub "mulsubBigInt" + (format "(function " @ "(q, a, x, len, offset) {" + "var xLong = " int//new "(0,x);" + "var carry = " int//zero ";" + "offset += len;" + (format "for (var j = len-1; j >= 0; j--) {" + "var product = " int//+ "(" int//* "(" int//new "(0,a[j]),xLong),carry);" + "var difference = " int//- "(" int//new "(0,q[offset]),product);" + "carry = " int//+ "(" bit//shift-right "(product,32),((difference.L > ~product.L) ? " int//one " : " int//zero "));" + "}") + "return carry.L;" + "})")) + +(runtime: nat//div-add "divadd" + (format "(function " @ "(a, result, offset) {" + "var carry = " int//zero ";" + (format "for (var j = a.length - 1; j >= 0; j--) {" + "var sum = " int//+ "(" int//+ "(" int//new "(0,a[j])," int//new "(0,result[j+offset])),carry);" + "result[j+offset] = sum.L;" + "carry = " bit//shift-right "(sum,32);" + "}") + "return carry.L;" + "})")) + +(runtime: nat//normalize "normalizeBigInt" + (format "(function " @ "(input) {" + (format "if(input[0] !== 0) {" + "return " int//new "(input[0],input[1]);" + "}" + "else {" + (format "var numZeros = 0;" + (format "do {" + "numZeros++;" + "} while(numZeros < input.length && input[numZeros] == 0);") + "var tempInput = input.slice(input.length-Math.max(2,input.length-numZeros));" + "return " int//new "(tempInput[0],tempInput[1]);") + "}") + "})")) + +(runtime: nat//divide-one-word "divideOneWord" + (format "(function " @ "(subject,param) {" + (format "var divLong = " int//new "(0,param);" + ## Special case of one word dividend + (format "if(subject.H === 0) {" + (format "var remValue = " int//new "(0,subject.L);" + "var quotient = " int/// "(remValue,divLong);" + "var remainder = " int//- "(remValue," int//* "(quotient.L,divLong));" + "return [quotient,remainder];") + "}") + "var quotient = [0|0,0|0];" + ## Normalize the divisor + "var shift = 32 - " bit//count "(" int//new "(0,param));" + "var rem = subject.H;" + "var remLong = " int//new "(0,rem);" + (format "if(" int//< "(remLong,divLong)) {" + "quotient[0] = 0|0;" + "}" + "else {" + "quotient[0] = " int/// "(remLong,divLong).L;" + "rem = " int//- "(remLong," int//* "(quotient[0],divLong)).L;" + "remLong = " int//new "(0,rem);" + "}") + "var remBI = [subject.H,subject.L];" + "var xlen = 2;" + "var qWord = [0|0,0|0];" + (format "while(--xlen > 0) {" + "var dividendEstimate = " bit//or "(" bit//shift-left "(remLong,32)," int//new "(0,remBI[2 - xlen]));" + (format "if(dividendEstimate >= 0) {" + "var highWord = " int/// "(dividendEstimate,divLong);" + "qWord[0] = highWord.L;" + "qWord[1] = " int//- "(dividendEstimate," int//* "(highWord,divLong)).L;" + "}" + "else {" + "" nat//div-word "(qWord, dividendEstimate, param);" + "}") + "quotient[2 - xlen] = qWord[0];" + "rem = qWord[1];" + "remLong = " int//new "(0,rem);" + "}") + ## Unnormalize + (format "if(shift > 0) {" + "rem %= divisor;" + "remBI[0] = rem;" + "}" + "else {" + "remBI[0] = rem;" + "}") + "var quotI64 = " nat//normalize "(quotient);" + "var remI64 = " int//new "(remBI[0],remBI[1]);" + "return [quotI64,remI64];") + "})")) + +(runtime: nat//div-mod "divmodBigInt" + (format "(function " @ "(subject,param) {" + (format "if(" int//= "(param," int//zero ")) {" + "throw new Error('Cannot divide by zero!');" + "}") + (format "if(" int//= "(subject," int//zero ")) {" + "return [" int//zero ", " int//zero "];" + "}") + (format "if(" nat//< "(subject,param)) {" + "return [" int//zero ", subject];" + "}") + (format "if(" int//= "(subject,param)) {" + "return [" int//one ", " int//zero "];" + "}") + ##################################### + (format "if (param.H === 0) {" + "return " nat//divide-one-word "(subject,param.L);" + "}") + ##################################### + "var divisor = param;" + "var remainder = subject.H === 0 ? [0|0,subject.L] : [0|0,subject.H,subject.L];" + "var paramLength = param.H === 0 ? 1 : 2;" + "var subjLength = subject.H === 0 ? 1 : 2;" + "var limit = subjLength - paramLength + 1;" + "var quotient = (limit === 1) ? [0|0] : [0|0,0|0];" + ## Normalize the divisor + "var shift = 32 - " bit//count "(" int//new "(divisor.H,0));" + (format "if(shift > 0) {" + "divisor = " bit//shift-left "(divisor,shift);" + "remainder = " nat//shift-left "(remainder,shift);" + "}") + (format "if((remainder.length-1) === subjLength) {" + "remainder[0] = 0;" + "}") + "var dh = divisor.H;" + "var dhLong = " int//new "(0,dh);" + "var dl = divisor.L;" + "var qWord = [0|0,0|0];" + ## D2 Initialize j + (format "for(var j = 0; j < limit; j++) {" + ## D3 Calculate qhat + ## estimate qhat + "var qhat = 0;" + "var qrem = 0;" + "var skipCorrection = false;" + "var nh = remainder[j];" + "var nh2 = nh + 0x80000000;" + "var nm = remainder[j+1];" + (format "if(nh == dh) {" + (format "qhat = ~0;" + "qrem = nh + nm;" + "skipCorrection = (qrem + 0x80000000) < nh2;") + "}" + "else {" + (format "var nChunk = " bit//or "(" bit//shift-left "(" int//from-number "(nh),32)," int//from-number "(nm));") + (format "if(" int//< "(" int//zero ",nChunk) || " int//= "(" int//zero ",nChunk)) {" + (format "qhat = " int/// "(nChunk,dhLong).L;" + "qrem = " int//- "(nChunk," int//* "(qhat, dhLong)).L;") + "}" + "else {" + (format "" nat//div-word "(qWord, nChunk, dh);" + "qhat = qWord[0];" + "qrem = qWord[1];" + ) + "}") + "if(qhat == 0) { continue; }" + (format "if(!skipCorrection) {" + ## Correct qhat + (format "var qremLong = " int//new "(0,qrem);" + "var dlLong = " int//new "(0,dl);" + "var nl = " int//new "(0,remainder[j+2]);" + "var rs = " bit//or "(" bit//shift-left "(qremLong,32),nl);" + "var estProduct = " int//* "(dlLong," int//new "(0,qhat));" + (format "if(" nat//< "(rs,estProduct)) {" + (format "qhat--;" + "qrem = " int//+ "(qremLong,dhLong).L;" + "qremLong = " int//new "(0,qrem);" + (format "if(" int//< "(dhLong,qremLong) || " int//= "(dhLong,qremLong)) {" + (format "estProduct = " int//* "(dlLong," int//new "(0,qhat));" + "rs = " bit//or "(" bit//shift-left "(qremLong,32),nl);" + "if(" nat//< "(rs,estProduct)) { qhat--; }") + "}")) + "}") + ) + "}") + ## D4 Multiply and subtract + "remainder[j] = 0;" + "var borrow = " nat//mul-sub "(remainder, divisor, qhat, paramLength, j);" + ## D5 Test remainder + (format "if((borrow + 0x80000000) > nh2) {" + ## D6 Add back + nat//div-add "(divisor, remainder, j+1);" + "qhat--;" + "}") + ## Store the quotient digit + "quotient[j] = qhat;" + "}") + "}") ## D7 loop on j + ## D8 Unnormalize + "if(shift > 0) { remainder = " nat//shift-right "(remainder,shift); }" + "return [" nat//normalize "(quotient), " nat//normalize "(remainder)];" + "})")) + +(runtime: nat/// "divN64" + (format "(function " @ "(l,r) {" + (format "if(" int//< "(r," int//zero ")) {" + (format "if(" nat//< "(l,r)) {" + "return " int//zero ";" + "}" + "else {" + "return " int//one ";" + "}") + "}" + "else if(" int//< "(" int//zero ",l)) {" + "return " int/// "(l,r);" + "}" + "else {" + (format "if(" int//= "(" int//zero ",r)) {" + "throw new Error('Cannot divide by zero!');" + "}" + "else {" + (format "if(" int//< "(l,r)) {" + "return " int//zero ";" + "}" + "else {" + "return " nat//div-mod "(l,r)[0];" + "}") + "}") + "}") + "})")) + +(runtime: nat//% "remN64" + (format "(function " @ "(l,r) {" + (format "if(" int//< "(l," int//zero ") || " int//< "(r," int//zero ")) {" + (format "if(" nat//< "(l,r)) {" + "return l;" + "}" + "else {" + "return " nat//div-mod "(l,r)[1];" + "}") + "}" + "else {" + "return " int//% "(l,r);" + "}") + "})")) + +(def: runtime//nat + Runtime + (format __nat//< + __nat//div-word + __nat//shift-left|primitive + __nat//shift-right|primitive + __nat//shift-left + __nat//shift-right + __nat//mul-sub + __nat//div-add + __nat//normalize + __nat//divide-one-word + __nat//div-mod + __nat/// + __nat//%)) + +(runtime: deg//* "mulD64" + (format "(function " @ "(l,r) {" + "var lL = " int//from-number "(l.L);" + "var rL = " int//from-number "(r.L);" + "var lH = " int//from-number "(l.H);" + "var rH = " int//from-number "(r.H);" + + "var bottom = " bit//shift-right "(" int//* "(lL,rL),32);" + "var middle = " int//+ "(" int//* "(lH,rL)," int//* "(lL,rH));" + "var top = " int//* "(lH,rH);" + + "var bottomAndMiddle = " bit//shift-right "(" int//+ "(middle,bottom),32);" + + "return " int//+ "(top,bottomAndMiddle);" + "})")) + +(runtime: deg//leading-zeroes "countLeadingZeroes" + (format "(function " @ "(input) {" + "var zeroes = 64;" + (format "while(!" int//= "(input," int//zero ")) {" + "zeroes--;" + "input = " bit//shift-right "(input,1);" + "}") + "return zeroes;" + "})")) + +(runtime: deg/// "divD64" + (format "(function " @ "(l,r) {" + (format "if(" int//= "(l,r)) {" + "return " int//negate "(" int//one ");" ## ~= 1.0 DEG + "}" + "else {" + "var minShift = Math.min(" deg//leading-zeroes "(l), " deg//leading-zeroes "(r));" + "l = " bit//shift-left "(l,minShift);" + "r = " bit//shift-left "(r,minShift);" + "return " bit//shift-left "(" int/// "(l," int//from-number "(r.H)),32);" + "}") + "})")) + +(runtime: deg//to-frac "degToFrac" + (format "(function " @ "(input) {" + "var two32 = Math.pow(2,32);" + "var high = input.H / two32;" + "var low = (input.L / two32) / two32;" + "return high+low;" + "})")) + +(runtime: deg//from-frac "fracToDeg" + (format "(function " @ "(input) {" + "var two32 = Math.pow(2,32);" + "var shifted = (input % 1.0) * two32;" + "var low = ((shifted % 1.0) * two32) | 0;" + "var high = shifted | 0;" + "return " int//new "(high,low);" + "})")) + +(def: runtime//deg + Runtime + (format __deg//* + __deg//leading-zeroes + __deg/// + __deg//to-frac + __deg//from-frac)) + +(runtime: text//index "index" + (format "(function " @ "(text,part,start) {" + "var idx = text.indexOf(part," int//to-number "(start));" + (format (format "if(idx === -1) {" + "return " none ";" + "}") + (format "else {" + (format "return " (some (format int//from-number "(idx)")) ";") + "}")) + "})")) + +(runtime: text//last-index "lastIndex" + (format "(function " @ "(text,part,start) {" + "var idx = text.lastIndexOf(part," int//to-number "(start));" + (format (format "if(idx === -1) {" + "return " none ";" + "}") + (format "else {" + (format "return " (some (format int//from-number "(idx)")) ";") + "}")) + "})")) + +(runtime: text//clip "clip" + (format "(function " @ "(text,from,to) {" + (format "if(from.L > text.length || to.L > text.length) {" + (format "return " none ";") + "}" + "else {" + (format "return " (some "text.substring(from.L,to.L)") ";") + "}") + "})")) + +(runtime: text//replace-all "replaceAll" + (format "(function " @ "(text,toFind,replaceWith) {" + "var reEscaped = toFind.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\$&');" + "return text.replace(new RegExp(reEscaped, 'g'), replaceWith);" + "})")) + +(runtime: text//char "textChar" + (format "(function " @ "(text,idx) {" + "var result = text.charAt(idx.L);" + (format "if(result === '') {" + (format "return " none ";") + "}" + "else {" + (format "return " (some "{'C':result}") ";") + "}") + "var reEscaped = toFind.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\$&');" + "return text.replace(new RegExp(reEscaped, 'g'), replaceWith);" + "})")) + +(runtime: text//hash "textHash" + (format "(function " @ "(input) {" + "var hash = 0;" + (format "for(var i = 0; i < input.length; i++) {" + "hash = (((hash << 5) - hash) + input.charCodeAt(i)) & 0xFFFFFFFF;" + "}") + "return " int//from-number "(hash);" + "})")) + +(def: runtime//text + Runtime + (format __text//index + __text//last-index + __text//clip + __text//replace-all + __text//char + __text//hash)) + +(runtime: array//get "arrayGet" + (format "(function " @ "(arr,idx) {" + "var temp = arr[" int//to-number "(idx)];" + (format "if(temp !== undefined) {" + (format "return " (some "temp") ";") + "}" + "else {" + (format "return " none ";") + "}") + "})")) + +(runtime: array//put "arrayPut" + (format "(function " @ "(arr,idx,val) {" + "arr[" int//to-number "(idx)] = val;" + "return arr;" + "})")) + +(runtime: array//remove "arrayRemove" + (format "(function " @ "(arr,idx) {" + "delete arr[" int//to-number "(idx)];" + "return arr;" + "})")) + +(def: runtime//array + Runtime + (format __array//get + __array//put + __array//remove)) + +(runtime: io//log "log" + (format "(function " @ "(message) {" + "console.log(message);" + (format "return " &&/unit ";") + "})")) + +(runtime: io//error "error" + (format "(function " @ "(message) {" + "throw new Error(message);" + "})")) + +(def: runtime//io + Runtime + (format __io//log + __io//error)) + +(runtime: js//set "jsSetField" + (format "(function " @ "(object, field, input) {" + "object[field] = input;" + "return object;" + "})")) + +(runtime: js//delete "jsDeleteField" + (format "(function " @ "(object, field) {" + "delete object[field];" + "return object;" + "})")) + +(runtime: js//call "jsObjectCall" + (format "(function " @ "(object, method, args) {" + "return object[method].apply(object, args);" + "})")) + +(def: runtime//js + Runtime + (format __js//set + __js//delete + __js//call)) + +(def: runtime + Runtime + (format runtime//lux + runtime//adt + runtime//bit + runtime//int + runtime//nat + runtime//deg + runtime//text + runtime//array + runtime//io + runtime//js)) + +(def: #export artifact Text (format prefix ".js")) + +(def: #export generate + (Meta Unit) + (&&/save-js! artifact runtime)) |