From 4cce2177f43e70e03662597c1441763bfacac197 Mon Sep 17 00:00:00 2001 From: Jeff Date: Sun, 19 Mar 2017 14:03:49 -0700 Subject: [PATCH] The recursive MACRO-10 test case (MACTEST1.MAC) found in the June 1972 MACRO-10 manual passes now --- .../{MACTEST.MAC.txt => MACTEST1.MAC.txt} | 11 +- apps/pdp10/tests/README.md | 2 +- docs/pcx86/examples/pcx86-dbg.js | 4 +- modules/pdp10/lib/macro10.js | 80 ++++- modules/shared/lib/debugger.js | 35 ++- versions/pc8080/1.34.2/pc8080-dbg.js | 4 +- versions/pcx86/1.34.2/pcx86-dbg.js | 4 +- versions/pdpjs/1.34.2/pdp10-dbg.js | 297 +++++++++--------- versions/pdpjs/1.34.2/pdp11-dbg.js | 4 +- 9 files changed, 264 insertions(+), 177 deletions(-) rename apps/pdp10/tests/{MACTEST.MAC.txt => MACTEST1.MAC.txt} (68%) diff --git a/apps/pdp10/tests/MACTEST.MAC.txt b/apps/pdp10/tests/MACTEST1.MAC.txt similarity index 68% rename from apps/pdp10/tests/MACTEST.MAC.txt rename to apps/pdp10/tests/MACTEST1.MAC.txt index 52981cf22..172316fd0 100644 --- a/apps/pdp10/tests/MACTEST.MAC.txt +++ b/apps/pdp10/tests/MACTEST1.MAC.txt @@ -9,13 +9,20 @@ ; last word if it is not already left-justified. The first part of the example shows the ; normal listing, then SALL is set to show what code the macros are generating. ; -; The original listing encodes the following two lines as follows: +; The original listing encoded two of the lines as follows: ; ; IFN ZZ, ;;IF NOT LEFT JUSTIFIED ; ; The April 1978 MACRO-10 manual says that a macro body "must be enclosed in angle brackets", -; so I'm not sure how the above lines make sense. +; so the DEFINE looks wrong, and the IFE contains only a closing angle bracket, which also seems +; wrong. Perhaps what's shown above is a side-effect of some MACRO-10 listing generation bug +; and not an accurate reflection of the original code. In any event, after making two small +; modifications below, macro10.js is able to assemble the code fine. +; +; This example also begs the question: did MACRO-10 optimize tail recursion? Because without +; it, if the SHIFT macro required many iterations (for example, if "ZZ==ZZ_9" was replaced with +; "ZZ==ZZ+9"), wouldn't MACRO-10 blow its stack? I've noted this in macro10.js as well. ; TITLE STORE TEXT CHARACTER BY CHARACTER SUBTTL %1 5-APR-72 diff --git a/apps/pdp10/tests/README.md b/apps/pdp10/tests/README.md index 846fd382d..3aeb4c12b 100644 --- a/apps/pdp10/tests/README.md +++ b/apps/pdp10/tests/README.md @@ -7,7 +7,7 @@ machines: type: pdp10 config: /devices/pdp10/machine/ka10/test/debugger/machine.xml debugger: true - commands: a 100 /apps/pdp10/tests/MACTEST.MAC + commands: a 100 /apps/pdp10/tests/MACTEST1.MAC --- DEC PDP-10 Opcode Tests diff --git a/docs/pcx86/examples/pcx86-dbg.js b/docs/pcx86/examples/pcx86-dbg.js index e5c277415..07b82cad0 100644 --- a/docs/pcx86/examples/pcx86-dbg.js +++ b/docs/pcx86/examples/pcx86-dbg.js @@ -721,8 +721,8 @@ function Xx(a,b,c){var d=a;b=b||32;if(c)if(32==b)d=a>>>0;else if(32>b)d=a&(1<a.length)return!1;var e,f=a.pop();e=a.pop();switch(d){case "*":e*=f;break;case "/":if(!f)return!1;e=Math.trunc(e/f);break;case "%":if(!f)return!1;e%=f;break;case "+":e+=f;break;case "-":e-=f;break;case "<<":e<<=f;break;case ">>":e>>=f;break;case ">>>":e>>>=f;break;case "<":e=e":e=e>f?1:0;break;case ">=":e=e>=f?1:0;break;case "==":e=e==f?1:0;break;case "!=":e=e!=f?1:0;break;case "&":e&= f;break;case "!":case "|":e|=f;break;case "^!":e|=f;break;case "&&":e=e&&f?1:0;break;case "||":e=e||f?1:0;break;case "_":case "^_":"^_"==d&&(f=35-(f&255));f&&(e=Xx(e,0,!0),e=0=|>>>|>>|>|<=|<<|<|-|\+|%|\/|\*)/),d=Zx(a,b,0,b.length,a.L,c),void 0!==d&&!1===c&&ey(a,null,d));return d} +u.push(k);a.L="^_"==k?10:e;p=0}Yx(v,u)&&1==v.length||(m=!0);m?!1===f&&a.P("parse error ("+(h||k)+")"):g=v.pop();a.L=E;return g}function by(a,b,c,d,e,f){for(var g;0<=(g=b.indexOf(c));){for(var h=0,k=g+1,m=e;m;){var p=b[k++];if(p==c){m=-1;break}p=p.charCodeAt(0);7==d?p&=127:p=p-32&63;h=Xx(h*Math.pow(2,d)+p,d*e,!0);m--}if(0<=m){!1===f&&a.P("parse error ("+b+")");break}else b=b.substr(0,g)+cy(a,h,-1)+b.substr(k)}return b} +function dy(a,b,c){var d=void 0;a.Ha=null;if(b){"{"!=a.qa[0]&&(b=b.split(a.qa[0]).join("{").split(a.qa[1]).join("}"));b=by(a,b,'"',7,5,c);if(!b)return d;b=by(a,b,"'",6,6,c);if(!b)return d;b=b.replace(/(^|[^A-Z0-9$%.])([0-9]+)B/,"$1$2^_");b=b.split(/(\{|}|\|\||&&|\||\^!|\^-|~|\^_|_|&|!=|!|==|>=|>>>|>>|>|<=|<<|<|-|\+|%|\/|\*)/);d=Zx(a,b,0,b.length,a.L,c);void 0!==d&&!1===c&&ey(a,null,d)}return d} function fy(a,b){var c,d=a.qa[0],e=a.qa[1];c="("==d||"{"==d||"["==d?"\\":"";for(var f="["==d?"\\":"",f=new RegExp(c+d+"([^"+f+d+f+e+"]+)"+c+e);c=b.match(f);){var g=dy(a,c[1]);if(void 0===g)return;b=b.replace(d+c[1]+e,null!=g?cy(a,g):"undefined")}if(a.Aa.length)for(d=a.Aa[0],e=a.Aa[1],c="("==d||"{"==d||"["==d?"\\":"",f="["==d?"\\":"",f=new RegExp(c+d+"([^"+f+d+f+e+"]+)"+c+e);c=b.match(f);)b=a.Pk(b,c[1]);for(;d=b.match(/\$([a-z]+)/i);){e=null;switch(d[1].toLowerCase()){case "ops":e=a.Y-a.ha}if(null== e)break;b=b.replace(d[0],e.toString())}return b}function $x(a,b,c,d,e){e=void 0===e?0:e;var f;null!=b?(f=a.gh(b),0<=f?f=a.hh(f):(f=a.ga[b],null==f&&(f=1e&&(b="-"+b,e=0),f=oa(b,f))),null!=f?0>e?f=-f:0c&&(d+=" '"+String.fromCharCode(c)+"'"));a.P((null!=b?b+": ":"")+d);return e}function gy(a,b){if(b)return ey(a,b,a.ga[b]);var c=0;for(b in a.ga)ey(a,b,a.ga[b]),c++;return 0} asURLs * @property {Array.} asLines + * @property {number|null|undefined} nAddrStart */ class Macro10 { /** @@ -128,6 +129,11 @@ class Macro10 { this.dbg = dbg; this.done = done; + /* + * The next set of properties may be updated by the assembly process and queried by the caller. + */ + this.nAddrStart = null; + this.println("starting PCjs MACRO-10 Mini-Assembler..."); /* @@ -149,7 +155,7 @@ class Macro10 { * Macros have the name that was assigned to them, REPEAT and conditional blocks have generated names * that match the pseudo-op (eg, "?REPEAT", "?IFE"), and LITERAL blocks have generated location-based * names. All generated names use a leading question mark ('?') so that they don't conflict with - * normal MACRO-10 labels. + * normal MACRO-10 symbols. */ /** @@ -313,6 +319,11 @@ class Macro10 { * are in the array and insert my own uniform CR/LF sequences. */ if (!this.parseLine(this.asLines[i] + '\r\n')) break; + /* + * When an END statement is encountered, nAddrStart will change from null to either undefined + * or a starting address. + */ + if (this.nAddrStart !== null) break; } if (this.nMacroDef) { @@ -482,6 +493,14 @@ class Macro10 { this.addASCII(sRemainder); break; + case Macro10.PSEUDO_OP.END: + this.addEND(sOperands); + break; + + case Macro10.PSEUDO_OP.EXP: + this.addEXP(sOperands); + break; + case Macro10.PSEUDO_OP.XWD: this.addXWD(sOperands); break; @@ -527,6 +546,13 @@ class Macro10 { this.macroCall = macro; macro.aValues = this.getValues(sOperands, true); this.parseText(macro.sText, macro.aParms, macro.aValues, macro.aDefaults); + /* + * WARNING: Our simplistic approach to macro expansion and processing means that recursive macros + * (such as the SHIFT macro contained in /apps/pdp10/tests/MACTEST1.MAC) could blow the stack. Nothing + * bad should happen (other than a JavaScript stack limit exception aborting the assembly), but it begs + * the question: did MACRO-10 perform any tail recursion optimizations or other tricks to prevent macros + * from running amok? + */ this.macroCall = macroPrev; return true; } @@ -700,9 +726,9 @@ class Macro10 { this.error("error parsing expression: " + sOperand); } } else { - var wLeft = match[1]? this.parseExpression(match[1]) : 0; + var wLeft = match[1]? this.parseExpression(match[1], fPass1, nLocation) : 0; if (wLeft !== undefined) { - var wRight = match[2]? this.parseExpression(match[2]) : 0; + var wRight = match[2]? this.parseExpression(match[2], fPass1, nLocation) : 0; if (wRight !== undefined) { /* * NOTE: These must be combined as UNSIGNED values, so that's what we tell truncate() to produce. @@ -1034,6 +1060,44 @@ class Macro10 { return sRemain; } + /** + * addEND() + * + * Processes the END pseudo-op. + * + * @this {Macro10} + * @param {string} sOperands + */ + addEND(sOperands) + { + if (!sOperands) { + this.nAddrStart = this.nAddr; + } else { + this.nAddrStart = this.parseExpression(sOperands, true); + if (this.nAddrStart === undefined) { + this.error("unrecognized expression: " + sOperands); + } + } + } + + /** + * addEXP() + * + * Processes the EXP pseudo-op. + * + * @this {Macro10} + * @param {string} sOperands + */ + addEXP(sOperands) + { + var w = this.parseExpression(sOperands, true); + if (w !== undefined) { + this.genWord(w, this.dbg.sUndefined); + } else { + this.error("unrecognized expression: " + sOperands); + } + } + /** * addSymbol(name, value, nType) * @@ -1101,15 +1165,17 @@ class Macro10 { /** * addXWD() * - * The XWD pseudo-op appears to be equivalent to two values separated by two commas, which our fixup code - * must also support, so we simply treat the XWD operands as a fixup expression. + * Processes the XWD pseudo-op. + * + * Since the XWD pseudo-op appears to be equivalent to two values separated by two commas, which addEXP() must also + * support, we can piggy-back on addExp(). * * @this {Macro10} * @param {string} sOperands */ addXWD(sOperands) { - this.genWord(0, sOperands.replace(",", ",,")); + this.addEXP(sOperands.replace(",", ",,")); } /** @@ -1214,6 +1280,8 @@ Macro10.PSEUDO_OP = { ASCII: "ASCII", ASCIZ: "ASCIZ", DEFINE: "DEFINE", + END: "END", + EXP: "EXP", IFE: "IFE", IFN: "IFN", IRP: "IRP", diff --git a/modules/shared/lib/debugger.js b/modules/shared/lib/debugger.js index 8f9c2cd86..9347c0c58 100644 --- a/modules/shared/lib/debugger.js +++ b/modules/shared/lib/debugger.js @@ -721,34 +721,44 @@ class Debugger extends Component } /** - * parseASCII(sExp, chDelim, nBits, nMax) + * parseASCII(sExp, chDelim, nBits, cchMax, fQuiet) * * @this {Debugger} * @param {string} sExp * @param {string} chDelim * @param {number} nBits - * @param {number} nMax + * @param {number} cchMax + * @param {boolean} [fQuiet] (true for quiet parsing) * @return {string} */ - parseASCII(sExp, chDelim, nBits, nMax) + parseASCII(sExp, chDelim, nBits, cchMax, fQuiet) { var i; while ((i = sExp.indexOf(chDelim)) >= 0) { var v = 0; - var n = nMax; var j = i + 1; - while (n--) { + var cch = cchMax; + while (cch) { var ch = sExp[j++]; - if (ch == chDelim) break; + if (ch == chDelim) { + cch = -1; + break; + } var c = ch.charCodeAt(0); if (nBits == 7) { c &= 0x7F; } else { c = (c - 0x20) & 0x3F; } - v = this.truncate(v * Math.pow(2, nBits) + c, nBits * nMax, true); + v = this.truncate(v * Math.pow(2, nBits) + c, nBits * cchMax, true); + cch--; + } + if (cch >= 0) { + if (fQuiet === false) this.println("parse error (" + sExp + ")"); + break; + } else { + sExp = sExp.substr(0, i) + this.toStrBase(v, -1) + sExp.substr(j); } - sExp = sExp.substr(0, i) + this.toStrBase(v, -1) + sExp.substr(j); } return sExp; } @@ -780,8 +790,7 @@ class Debugger extends Component */ parseExpression(sExp, fQuiet) { - var value; - + var value = undefined; this.sUndefined = null; if (sExp) { @@ -804,8 +813,10 @@ class Debugger extends Component * Quoted ASCII characters can have a numeric value, too, which must be converted now, to avoid any * conflicts with the operators below. */ - sExp = this.parseASCII(sExp, '"', 7, 5); // MACRO-10 packs up to 5 7-bit ASCII codes in the value - sExp = this.parseASCII(sExp, "'", 6, 6); // MACRO-10 packs up to 6 6-bit ASCII (SIXBIT) codes in the value + sExp = this.parseASCII(sExp, '"', 7, 5, fQuiet); // MACRO-10 packs up to 5 7-bit ASCII codes into a value + if (!sExp) return value; + sExp = this.parseASCII(sExp, "'", 6, 6, fQuiet); // MACRO-10 packs up to 6 6-bit ASCII (SIXBIT) codes into a value + if (!sExp) return value; /* * All browsers (including, I believe, IE9 and up) support the following idiosyncrasy of a RegExp split(): diff --git a/versions/pc8080/1.34.2/pc8080-dbg.js b/versions/pc8080/1.34.2/pc8080-dbg.js index c2f4fad6d..c3d341000 100644 --- a/versions/pc8080/1.34.2/pc8080-dbg.js +++ b/versions/pc8080/1.34.2/pc8080-dbg.js @@ -202,8 +202,8 @@ function dg(a,b,c){var d=a;b=b||32;if(c)if(32==b)d=a>>>0;else if(32>b)d=a&(1<a.length)return!1;var e,f=a.pop();e=a.pop();switch(d){case "*":e*=f;break;case "/":if(!f)return!1;e=Math.trunc(e/f);break;case "%":if(!f)return!1;e%=f;break;case "+":e+=f;break;case "-":e-=f;break;case "<<":e<<=f;break;case ">>":e>>=f;break;case ">>>":e>>>=f;break;case "<":e=e":e=e>f?1:0;break;case ">=":e=e>=f?1:0;break;case "==":e=e==f?1:0;break;case "!=":e=e!=f?1:0;break;case "&":e&= f;break;case "!":case "|":e|=f;break;case "^!":e|=f;break;case "&&":e=e&&f?1:0;break;case "||":e=e||f?1:0;break;case "_":case "^_":"^_"==d&&(f=35-(f&255));f&&(e=dg(e,0,!0),e=0=|>>>|>>|>|<=|<<|<|-|\+|%|\/|\*)/),d=fg(a,b,0,b.length,a.L,c),void 0!==d&&!1===c&&lg(a,null,d));return d} +B.push(k);a.L="^_"==k?10:e;u=0}eg(v,B)&&1==v.length||(p=!0);p?!1===f&&a.i("parse error ("+(h||k)+")"):g=v.pop();a.L=y;return g}function ig(a,b,c,d,e,f){for(var g;0<=(g=b.indexOf(c));){for(var h=0,k=g+1,p=e;p;){var u=b[k++];if(u==c){p=-1;break}u=u.charCodeAt(0);7==d?u&=127:u=u-32&63;h=dg(h*Math.pow(2,d)+u,d*e,!0);p--}if(0<=p){!1===f&&a.i("parse error ("+b+")");break}else b=b.substr(0,g)+jg(a,h,-1)+b.substr(k)}return b} +function kg(a,b,c){var d=void 0;a.oa=null;if(b){"{"!=a.W[0]&&(b=b.split(a.W[0]).join("{").split(a.W[1]).join("}"));b=ig(a,b,'"',7,5,c);if(!b)return d;b=ig(a,b,"'",6,6,c);if(!b)return d;b=b.replace(/(^|[^A-Z0-9$%.])([0-9]+)B/,"$1$2^_");b=b.split(/(\{|}|\|\||&&|\||\^!|\^-|~|\^_|_|&|!=|!|==|>=|>>>|>>|>|<=|<<|<|-|\+|%|\/|\*)/);d=fg(a,b,0,b.length,a.L,c);void 0!==d&&!1===c&&lg(a,null,d)}return d} function mg(a,b){var c,d=a.W[0],e=a.W[1];c="("==d||"{"==d||"["==d?"\\":"";for(var f="["==d?"\\":"",f=new RegExp(c+d+"([^"+f+d+f+e+"]+)"+c+e);c=b.match(f);){var g=kg(a,c[1]);if(void 0===g)return;b=b.replace(d+c[1]+e,null!=g?jg(a,g):"undefined")}if(a.fa.length)for(d=a.fa[0],e=a.fa[1],c="("==d||"{"==d||"["==d?"\\":"",f="["==d?"\\":"",f=new RegExp(c+d+"([^"+f+d+f+e+"]+)"+c+e);c=b.match(f);)b=b.replace("["+c[1]+"]","unimplemented");for(;d=b.match(/\$([a-z]+)/i);){e=null;switch(d[1].toLowerCase()){case "ops":e= a.O-a.ba}if(null==e)break;b=b.replace(d[0],e.toString())}return b}function gg(a,b,c,d,e){e=void 0===e?0:e;var f;null!=b?(f=a.Kb(b),0<=f?f=a.Lb(f):(f=a.T[b],null==f&&(f=1e&&(b="-"+b,e=0),f=ma(b,f))),null!=f?0>e?f=-f:0>=8;d=n(c,0,!0)+" "+c+". 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