diff options
Diffstat (limited to 'luxc/src')
| -rw-r--r-- | luxc/src/lux/compiler/js/rt.clj | 75 |
1 files changed, 65 insertions, 10 deletions
diff --git a/luxc/src/lux/compiler/js/rt.clj b/luxc/src/lux/compiler/js/rt.clj index a70a59689..b2104cb1b 100644 --- a/luxc/src/lux/compiler/js/rt.clj +++ b/luxc/src/lux/compiler/js/rt.clj @@ -74,16 +74,16 @@ "return (i64.H * LuxRT$TWO_PWR_32) + LuxRT$getLowBitsUnsigned(i64);" "})") "fromNumberI64" (str "(function LuxRT$fromNumberI64(num) {" - (str "if (isNaN(num)) {" + (str "if(isNaN(num)) {" "return LuxRT$ZERO;" "}") - (str "else if (num <= -LuxRT$TWO_PWR_63) {" + (str "else if(num <= -LuxRT$TWO_PWR_63) {" "return LuxRT$MIN_VALUE_I64;" "}") - (str "else if ((num + 1) >= LuxRT$TWO_PWR_63) {" + (str "else if((num + 1) >= LuxRT$TWO_PWR_63) {" "return LuxRT$MAX_VALUE_I64;" "}") - (str "else if (num < 0) {" + (str "else if(num < 0) {" "return LuxRT$negateI64(LuxRT$fromNumberI64(-num));" "}") (str "else {" @@ -293,15 +293,15 @@ "var rem = LuxRT$subI64(LuxRT$mulI64(div,radix),input);" "return LuxRT$encodeI64(div).concat(rem.L+'');" "}") - "}" (str "else {" "return '-'.concat(LuxRT$encodeI64(LuxRT$negateI64(input)));" - "}")) + "}") + "}") ;; If input > 0 (str "var chunker = LuxRT$makeI64(0,1000000);" "var rem = input;" "var result = '';" - "while (true) {" + "while(true) {" (str "var remDiv = LuxRT$divI64(rem,chunker);" "var chunk = LuxRT$subI64(rem,LuxRT$mulI64(remDiv,chunker));" "var digits = (chunk.L >>> 0)+'';" @@ -310,7 +310,7 @@ "return digits.concat(result);" "}" "else {" - (str "while (digits.length < 6) {" + (str "while(digits.length < 6) {" "digits = '0' + digits;" "}") "result = '' + digits + result;" @@ -467,6 +467,57 @@ "return LuxRT$makeI64(tempInput[0],tempInput[1]);") "}") "})") + "divideOneWord" (str "(function LuxRT$divideOneWord(subject,param) {" + (str "var divLong = LuxRT$makeI64(0,param);" + ;; Special case of one word dividend + (str "if(subject.H === 0) {" + (str "var remValue = LuxRT$makeI64(0,subject.L);" + "var quotient = LuxRT$divI64(remValue,divLong);" + "var remainder = LuxRT$subI64(remValue,LuxRT$mulI64(quotient.L,divLong));" + "return [quotient,remainder];") + "}") + "var quotient = [0|0,0|0];" + ;; Normalize the divisor + "var shift = 32 - LuxRT$countI64(LuxRT$makeI64(0,param));" + "var rem = subject.H;" + "var remLong = LuxRT$makeI64(0,rem);" + (str "if(LuxRT$ltI64(remLong,divLong)) {" + "quotient[0] = 0|0;" + "}" + "else {" + "quotient[0] = LuxRT$divI64(remLong,divLong).L;" + "rem = LuxRT$subI64(remLong,LuxRT$mulI64(quotient[0],divLong)).L;" + "remLong = LuxRT$makeI64(0,rem);" + "}") + "var remBI = [subject.H,subject.L];" + "var xlen = 2;" + "var qWord = [0|0,0|0];" + (str "while(--xlen > 0) {" + "var dividendEstimate = LuxRT$orI64(LuxRT$shlI64(remLong,32),LuxRT$makeI64(0,remBI[2 - xlen]));" + (str "if(dividendEstimate >= 0) {" + "var highWord = LuxRT$divI64(dividendEstimate,divLong);" + "qWord[0] = highWord.L;" + "qWord[1] = LuxRT$subI64(dividendEstimate,LuxRT$mulI64(highWord,divLong)).L;" + "}" + "else {" + "LuxRT$divWord(qWord, dividendEstimate, param);" + "}") + "quotient[2 - xlen] = qWord[0];" + "rem = qWord[1];" + "remLong = LuxRT$makeI64(0,rem);" + "}") + ;; Unnormalize + (str "if(shift > 0) {" + "rem %= divisor;" + "remBI[0] = rem;" + "}" + "else {" + "remBI[0] = rem;" + "}") + "var quotI64 = LuxRT$normalizeBigInt(quotient);" + "var remI64 = LuxRT$makeI64(remBI[0],remBI[1]);" + "return [quotI64,remI64];") + "})") "divmodBigInt" (str "(function LuxRT$divmodBigInt(subject,param) {" (str "if(LuxRT$eqI64(param,LuxRT$ZERO)) {" "throw new Error('Cannot divide by zero!');" @@ -481,6 +532,10 @@ "return [LuxRT$ONE, LuxRT$ZERO];" "}") ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + (str "if (param.H === 0) {" + "return LuxRT$divideOneWord(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;" @@ -489,7 +544,7 @@ "var quotient = (limit === 1) ? [0|0] : [0|0,0|0];" ;; Normalize the divisor "var shift = 32 - LuxRT$countI64(LuxRT$makeI64(divisor.H,0));" - (str "if (shift > 0) {" + (str "if(shift > 0) {" "divisor = LuxRT$shlI64(divisor,shift);" "remainder = LuxRT$shiftLeftBigInt(remainder,shift);" "}") @@ -551,7 +606,7 @@ "remainder[j] = 0;" "var borrow = LuxRT$mulsubBigInt(remainder, divisor, qhat, paramLength, j);" ;; D5 Test remainder - (str "if (borrow + 0x80000000 > nh2) {" + (str "if((borrow + 0x80000000) > nh2) {" ;; D6 Add back "LuxRT$divadd(divisor, remainder, j+1);" "qhat--;" |