Apple-2-SW/jsbasic
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This commit is contained in:
Joshua Bell 2013-12-26 14:38:15 -08:00
parent dcc85aec58
commit 308c2d0baf
1 changed files with 27 additions and 30 deletions
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57
basic.js
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@ -434,20 +434,20 @@ this.basic = (function() {
0x00E6: function(v) { if (env.display) { env.display.hires_plotting_page = (v === 64 ? 2 : 1); } }, 0x00E6: function(v) { if (env.display) { env.display.hires_plotting_page = (v === 64 ? 2 : 1); } },
// Keyboard strobe // Keyboard strobe
0xC010: function(v) { if (env.tty.clearKeyboardStrobe) { env.tty.clearKeyboardStrobe(); } }, 0xC010: function() { if (env.tty.clearKeyboardStrobe) { env.tty.clearKeyboardStrobe(); } },
// Display switches // Display switches
0xC050: function(v) { if (env.display) { env.display.setState("graphics", true); } }, // Graphics 0xC050: function() { if (env.display) { env.display.setState("graphics", true); } }, // Graphics
0xC051: function(v) { if (env.display) { env.display.setState("graphics", false); } }, // Text 0xC051: function() { if (env.display) { env.display.setState("graphics", false); } }, // Text
0xC052: function(v) { if (env.display) { env.display.setState("full", true); } }, // Full Graphics 0xC052: function() { if (env.display) { env.display.setState("full", true); } }, // Full Graphics
0xC053: function(v) { if (env.display) { env.display.setState("full", false); } }, // Split Screen 0xC053: function() { if (env.display) { env.display.setState("full", false); } }, // Split Screen
0xC054: function(v) { if (env.display) { env.display.setState("page1", true); } }, // Page 1 0xC054: function() { if (env.display) { env.display.setState("page1", true); } }, // Page 1
0xC055: function(v) { if (env.display) { env.display.setState("page1", false); } }, // Page 2 0xC055: function() { if (env.display) { env.display.setState("page1", false); } }, // Page 2
0xC056: function(v) { if (env.display) { env.display.setState("lores", true); } }, // Lo-Res 0xC056: function() { if (env.display) { env.display.setState("lores", true); } }, // Lo-Res
0xC057: function(v) { if (env.display) { env.display.setState("lores", false); } }, // Hi-Res 0xC057: function() { if (env.display) { env.display.setState("lores", false); } }, // Hi-Res
// Speaker toggle // Speaker toggle
0xC030: function(v) { } // no-op 0xC030: function() { } // no-op
}; };
call_table = { call_table = {
@ -503,7 +503,7 @@ this.basic = (function() {
throw new GoToLine(line); throw new GoToLine(line);
}, },
'on_goto': function ON_GOTO(index, line1, line2 /* ... */) { 'on_goto': function ON_GOTO(index /* , ...lines */) {
index = (index - 1) >> 0; index = (index - 1) >> 0;
var lines = Array.prototype.slice.call(arguments, 1); var lines = Array.prototype.slice.call(arguments, 1);
@ -521,7 +521,7 @@ this.basic = (function() {
throw new GoToLine(line); throw new GoToLine(line);
}, },
'on_gosub': function ON_GOSUB(index, line1, line2 /* ... */) { 'on_gosub': function ON_GOSUB(index /* , ...lines */) {
index = (index - 1) >> 0; index = (index - 1) >> 0;
var lines = Array.prototype.slice.call(arguments, 1); var lines = Array.prototype.slice.call(arguments, 1);
if (index < 0 || index >= lines.length) { if (index < 0 || index >= lines.length) {
@ -570,7 +570,7 @@ this.basic = (function() {
}); });
}, },
'next': function NEXT(var1, var2 /* ... */) { 'next': function NEXT(/* ...varnames */) {
var varnames = Array.prototype.slice.call(arguments), var varnames = Array.prototype.slice.call(arguments),
varname, stack_record, value; varname, stack_record, value;
do { do {
@ -640,7 +640,7 @@ this.basic = (function() {
}, },
// PERF: optimize by turning into a function, e.g. "state.parsevar(name, lib.read())" // PERF: optimize by turning into a function, e.g. "state.parsevar(name, lib.read())"
'read': function READ(lvalue1, lvalue2 /* ... */) { 'read': function READ(/* ...lvalues */) {
var lvalues = Array.prototype.slice.call(arguments); var lvalues = Array.prototype.slice.call(arguments);
while (lvalues.length) { while (lvalues.length) {
if (state.data_index >= state.data.length) { if (state.data_index >= state.data.length) {
@ -657,7 +657,7 @@ this.basic = (function() {
// //
////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////
'print': function PRINT(string1, string2 /* ... */) { 'print': function PRINT(/* ...strings */) {
var args = Array.prototype.slice.call(arguments), arg; var args = Array.prototype.slice.call(arguments), arg;
while (args.length) { while (args.length) {
arg = args.shift(); arg = args.shift();
@ -711,7 +711,7 @@ this.basic = (function() {
throw new BlockingInput(im, ih); throw new BlockingInput(im, ih);
}, },
'input': function INPUT(prompt, var1, var2 /* ... */) { 'input': function INPUT(prompt /* , ...varlist */) {
var varlist = Array.prototype.slice.call(arguments, 1); // copy for closure var varlist = Array.prototype.slice.call(arguments, 1); // copy for closure
var im, ih; var im, ih;
im = function(cb) { return env.tty.readLine(cb, prompt); }; im = function(cb) { return env.tty.readLine(cb, prompt); };
@ -906,7 +906,7 @@ this.basic = (function() {
if (env.hires2) { env.hires2.setColor(n); } if (env.hires2) { env.hires2.setColor(n); }
}, },
'hplot': function HPLOT(x1, y1, x2, y2 /* ... */) { 'hplot': function HPLOT(/* ...coords */) {
var hires = env.display.hires_plotting_page === 2 ? env.hires2 : env.hires; var hires = env.display.hires_plotting_page === 2 ? env.hires2 : env.hires;
if (!hires) { runtime_error('Hires graphics not supported'); } if (!hires) { runtime_error('Hires graphics not supported'); }
@ -932,7 +932,7 @@ this.basic = (function() {
} }
}, },
'hplot_to': function HPLOT_TO(x1, y1, x2, y2 /* ... */) { 'hplot_to': function HPLOT_TO(/* ...coords */) {
var hires = env.display.hires_plotting_page === 2 ? env.hires2 : env.hires; var hires = env.display.hires_plotting_page === 2 ? env.hires2 : env.hires;
if (!hires) { runtime_error('Hires graphics not supported'); } if (!hires) { runtime_error('Hires graphics not supported'); }
@ -1032,7 +1032,7 @@ this.basic = (function() {
}; };
// Apply a signature [return_type, arg0_type, arg1_type, ...] to a function // Apply a signature [return_type, arg0_type, arg1_type, ...] to a function
function funcsign(func, return_type, arg0_type, arg1_type /* ... */) { function funcsign(func /*, return_type, ...arg_types */) {
func.signature = Array.prototype.slice.call(arguments, 1); func.signature = Array.prototype.slice.call(arguments, 1);
return func; return func;
} }
@ -1166,7 +1166,7 @@ this.basic = (function() {
(function(source) { (function(source) {
function munge(kw) { function munge(kw) {
// Escape special characters // Escape special characters
function escape(c) { return /[\[\]\\\^\$\.\|\?\*\+\(\)]/.test(c) ? '\\' + c : c; } function escape(c) { return (/[\[\]\\\^\$\.\|\?\*\+\(\)]/).test(c) ? '\\' + c : c; }
// Allow linear whitespace between characters // Allow linear whitespace between characters
//return kw.split('').map(escape).join('[ \\t]*'); //return kw.split('').map(escape).join('[ \\t]*');
@ -1670,7 +1670,7 @@ this.basic = (function() {
function parseCommand() { function parseCommand() {
function slib(name, arg0, arg1 /* ... */) { function slib(name /* , ...args */) {
var args = Array.prototype.slice.call(arguments, 1); var args = Array.prototype.slice.call(arguments, 1);
return 'lib[' + quote(name) + '](' + args.join(',') + ');'; return 'lib[' + quote(name) + '](' + args.join(',') + ');';
} }
@ -1705,10 +1705,9 @@ this.basic = (function() {
if (!subscripts) { if (!subscripts) {
identifiers.variables[name] = true; identifiers.variables[name] = true;
return 'state.variables[' + quote(name) + '] = ' + expr; return 'state.variables[' + quote(name) + '] = ' + expr;
} else {
identifiers.arrays[name] = true;
return 'state.arrays[' + quote(name) + '].set([' + subscripts + '], ' + expr + ')';
} }
identifiers.arrays[name] = true;
return 'state.arrays[' + quote(name) + '].set([' + subscripts + '], ' + expr + ')';
case kws.DIM: case kws.DIM:
js = ''; js = '';
@ -1732,9 +1731,8 @@ this.basic = (function() {
throw parse_error("DEF FN function type and argument type must match"); throw parse_error("DEF FN function type and argument type must match");
} }
expr = vartype(name) === 'string' expr = vartype(name) === 'string' ?
? parseStringExpression() parseStringExpression() : parseNumericExpression();
: parseNumericExpression();
return slib('def', quote(name), return slib('def', quote(name),
'function (arg){' + 'function (arg){' +
@ -1820,10 +1818,9 @@ this.basic = (function() {
if (test('number')) { if (test('number')) {
// IF expr THEN linenum // IF expr THEN linenum
return js + slib('goto', match('number')); return js + slib('goto', match('number'));
} else {
// IF expr THEN statement
return js + parseCommand(); // recurse
} }
// IF expr THEN statement
return js + parseCommand(); // recurse
case kws.END: // End program case kws.END: // End program
return slib('end'); return slib('end');