Updated BIOS and BASIC information
This commit is contained in:
Jeff Parsons
parent
f94409d754
commit
217c0c0f49
7 changed files with 4153 additions and 27 deletions
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@ -47,12 +47,8 @@ for example, models 5150 through 5170 refer to IBM PC models.
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---
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The IBM BASIC ROMs require a bit more research. I'm a little unclear on the precise history of the BASIC ROMs and
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exactly which version shipped with each IBM PC machine revision.
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The project currently includes only two BASIC ROM versions, 1.00 and 1.10, which were initially released with the
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first model 5150 and 5160 machines, respectively. However, I've also read reports that later revisions of the model
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5150 included BASIC ROM 1.10 as well.
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The project currently includes only two BASIC ROM versions, C1.00 and C1.10, which were initially released with the
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first model 5150 and 5160 machines, respectively. For more details, see [IBM PC ROMs](/devices/pc/rom/).
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I believe there was also a BASIC ROM version 1.20 released for IBM PCjr, but since PCjs does not yet emulate the PCjr,
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it has not been added to the project.
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@ -6,18 +6,21 @@ redirect_from:
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- /devices/pc/basic/
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---
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BASIC ROMs
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IBM PC BASIC ROMs
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---
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The project contains the following BASIC ROMs:
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The project contains the following IBM PC BASIC ROMs:
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* [BASIC 1.00](BASIC100.json)
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* [BASIC 1.10](../../5160/basic/BASIC110.json)
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* [IBM BASIC C1.00](BASIC100.json)
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* [IBM BASIC C1.10](../../5160/basic/BASIC110.json)
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These built-in versions of BASIC were also referred to as *Cassette BASIC*, because no disk drive was required.
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These built-in versions of BASIC were also referred to as Cassette BASIC, because no disk drive was required.
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Only the original IBM PC (Model 5150) actually provided a cassette interface, but IBM continued to use that
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name to describe the built-in BASIC at least up through the IBM PC AT (Model 5170).
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name to describe the built-in BASIC, at least up through the IBM PC AT (Model 5170).
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Both versions of Cassette BASIC where 32Kb and spanned physical addresses 0xF6000-0xFDFFF. They were produced by
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Microsoft, and unlike the IBM PC BIOS ROMs, no source code listings of these BASIC ROMs were ever published.
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Here's an [IBM PC Machine](/devices/pc/machine/) XML excerpt that shows how to include a BASIC ROM:
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<rom id="romBASIC" addr="0xf6000" size="0x8000" file="/devices/pc/rom/5160/basic/BASIC110.json"/>
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<rom id="romBASIC" addr="0xf6000" size="0x8000" file="/devices/pc/rom/5150/basic/BASIC100.json"/>
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4098
devices/pc/rom/5160/1986-01-10/XTBIOS-REV2.json
Normal file
4098
devices/pc/rom/5160/1986-01-10/XTBIOS-REV2.json
Normal file
File diff suppressed because it is too large
Load diff
BIN
devices/pc/rom/5160/1986-01-10/XTBIOS-REV2.rom
Normal file
BIN
devices/pc/rom/5160/1986-01-10/XTBIOS-REV2.rom
Normal file
Binary file not shown.
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@ -16,20 +16,49 @@ for each ROM in the machine; eg:
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### BASIC ROMs
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The project contains the following IBM PC BASIC ROMs:
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The project contains the following [IBM PC BASIC ROMs](/devices/pc/rom/5150/basic/):
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* [IBM BASIC 1.00](5150/basic/BASIC100.json)
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* [IBM BASIC 1.10](5160/basic/BASIC110.json)
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* [IBM BASIC C1.00](5150/basic/BASIC100.json)
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* [IBM BASIC C1.10](5160/basic/BASIC110.json)
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We informally refer to version C1.00 as the Model 5150 version, and C1.10 as the Model 5160 (and later) version of
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Cassette BASIC. It's true that the last few Model 5150 machines produced were upgraded with version C1.10, but we
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are simply referring to the respective model with which each version of Cassette BASIC was *introduced*.
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### BIOS ROMs
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The project contains the following IBM PC BIOS ROMs:
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* [Model 5150: Apr 24, 1981](5150/1981-04-24/PCBIOS-REV1.json)
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* [Model 5150: Oct 19, 1981](5150/1981-10-19/PCBIOS-REV2.json)
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* [Model 5150: Oct 27, 1982](5150/1982-10-27/PCBIOS-REV3.json)
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* [Model 5160: Nov 08, 1982](5160/1982-11-08/XTBIOS-REV1.json)
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* [Model 5160: May 09, 1986](5160/1986-05-09/XTBIOS-REV3.json)
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* [Model 5150: Apr 24, 1981](5150/1981-04-24/PCBIOS-REV1.json) (included with [IBM BASIC C1.00](5150/basic/BASIC100.json))
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* [Model 5150: Oct 19, 1981](5150/1981-10-19/PCBIOS-REV2.json) (included with [IBM BASIC C1.00](5150/basic/BASIC100.json))
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* [Model 5150: Oct 27, 1982](5150/1982-10-27/PCBIOS-REV3.json) (included with [IBM BASIC C1.00](5150/basic/BASIC100.json) *or* [IBM BASIC C1.10](5160/basic/BASIC110.json))
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* [Model 5160: Nov 08, 1982](5160/1982-11-08/XTBIOS-REV1.json) (included with [IBM BASIC C1.10](5160/basic/BASIC110.json))
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* [Model 5160: Jan 10, 1986](5160/1986-01-10/XTBIOS-REV2.json) (includes [IBM BASIC C1.10](5160/basic/BASIC110.json))
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* [Model 5160: May 09, 1986](5160/1986-05-09/XTBIOS-REV3.json) (includes [IBM BASIC C1.10](5160/basic/BASIC110.json))
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As hinted above, some newer Model 5150 machines with the **Oct 27, 1982** BIOS included IBM BASIC C1.10. And
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some even *newer* 5150 machines had a BIOS with a "1982" copyright year instead of "1981", which also changed the checksum
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byte from 0x78 to 0x77. However, the project includes only the original "1981" version, since the difference was trivial.
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In general, IBM BASIC ROM images are 32Kb and IBM BIOS ROM images are 8Kb, and together they provided 40Kb of contiguous
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read-only memory, with the BASIC ROM spanning physical addresses 0xF6000-0xFDFFF and the BIOS ROM spanning addresses
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0xFE000-0xFFFFF.
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However, starting with Model 5160 ROM images dated **Jan 10, 1986**, our ROM images are actually 64Kb images that
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span addresses 0xF0000-0xFFFFF and include IBM BASIC C1.10 at offset 0x6000 (physical address 0xF6000), so there's no
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need to load the BASIC ROM separately. That trend continued with the IBM PC AT Model 5170, whose ROM images are also
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64Kb and all contain IBM BASIC C1.10.
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Apparently, even the first Model 5160 was socketed for two 32Kb ROMs, but it came with an 8Kb ROM in the first socket,
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so that ROM (containing the first 8Kb of IBM BASIC C1.10) appeared at multiple addresses: 0xF0000, 0xF2000, 0xF4000,
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and 0xF6000. None of our Model 5160 machine configurations emulate that layout, but it could easily be done,
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by extracting the first 8Kb of IBM BASIC C1.10 into a separate image and explicitly mapping it at each of those four
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addresses.
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See this [diagram](http://www.minuszerodegrees.net/5160/misc/5160_memory_layout_of_bios_and_basic.jpg) for a more
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visual description of the Model 5160's ROM layout.
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---
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The project also contains BIOS ROMs, along with more detailed information, for the following machines:
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@ -594,9 +594,9 @@ b+" changes applied)";b=-1;break}if(this.ef){c="unable to modify write-protected
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m.toJSON=function(){var a;a=0;for(var b;b=Yo(this,a++);)qp(b);a=JSON.stringify(this.A,function(a,b){return"file"==a?void 0:b});a=a.replace(/,"length":512/gm,"").replace(/,"pattern":0/gm,"");a=a.replace(/"(sector|length|data|pattern)":/gm,"$1:");a=a.replace(/,"[^"]*":([0-9]+|true|false)/gm,"");a=a.replace(/(sector|length|data|pattern):/gm,'"$1":');return a=a.replace(/([\]}]),/gm,"$1,\n")};
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function qp(a){var b=a.data,c=b.length;if(c<<2==a.length){for(var d=c-1,e=b[d],f=0;d--&&b[d]===e;)f++;f++&&(b.length=c-f,a.pattern=e)}}function rp(a){Ua.call(this,"FDC",a,rp,524288);this.dmaRead=this.wk;this.dmaWrite=this.xk;this.dmaFormat=this.Lk;this.U=a.autoMount||null;this.ga=a.sortBy||"name";"none"==this.ga&&(this.ga=null);this.B=[];this.ja=!Ga("Mobi")&&window&&"FileReader"in window}db(rp);aa={};
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b&&(b="");g=g.href;void 0!==g&&(b='<a href="'+g+'" target="_blank">'+b+"</a>");a.innerHTML=b}};return!0;case "descDisk":case "listDrives":return this.qa[b]=c,c.onchange=function(){var a=ca(c.value,10);null!=a&&tp(d,a)},!0;case "loadDrive":return this.qa[b]=c,c.onclick=function(){var a=d.qa.listDisks;a&&up(d,a.options[a.selectedIndex].text,a.value)},!0;case "saveDrive":if(!this.ja){c.parentNode.removeChild(c);break}this.qa[b]=c;c.onclick=function(){var a=d.qa.listDrives;a&&a.options&&d.A&&(a=ca(a.value,
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10),(a=d.A[a])?(a=a.za)?(a=Ia(pp(a),"octet-stream",!0,a.Ng.replace(".json",".img")),w(a)):d.Na("No diskette loaded in drive."):d.Na("No diskette drive selected."))};return!0;case "mountDrive":if(!this.ja){c.parentNode.removeChild(c);break}this.qa[b]=c;c.addEventListener("change",function(){var a=c.children[0];a.children[1].disabled=!a.children[0].files.length});c.onsubmit=function(a){if(a=a.currentTarget[1].files[0]){var b=a.name;up(d,fa(b,!0),b,a)}return!1};return!0}return!1};
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g.href;void 0!==g&&(b='<a href="'+g+'" target="_blank">'+b+"</a>");a.innerHTML=b}};return!0;case "descDisk":case "listDrives":return this.qa[b]=c,c.onchange=function(){var a=ca(c.value,10);null!=a&&tp(d,a)},!0;case "loadDrive":return this.qa[b]=c,c.onclick=function(){var a=d.qa.listDisks;a&&up(d,a.options[a.selectedIndex].text,a.value)},!0;case "saveDrive":if(!this.ja){c.parentNode.removeChild(c);break}this.qa[b]=c;c.onclick=function(){var a=d.qa.listDrives;a&&a.options&&d.A&&(a=ca(a.value,10),(a=
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d.A[a])?(a=a.za)?(a=Ia(pp(a),"octet-stream",!0,a.Ng.replace(".json",".img")),w(a)):d.Na("No diskette loaded in drive."):d.Na("No diskette drive selected."))};return!0;case "mountDrive":if(!this.ja){c.parentNode.removeChild(c);break}this.qa[b]=c;c.addEventListener("change",function(){var a=c.children[0];a.children[1].disabled=!a.children[0].files.length});c.onsubmit=function(a){if(a=a.currentTarget[1].files[0]){var b=a.name;up(d,fa(b,!0),b,a)}return!1};return!0}return!1};
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m.ic=function(a,b){if(!b){if(!a||!this.restore){if(this.reset(),this.V.dh){this.B=[];for(var c=0;c<this.A.length;c++)Ap(this,c,!0);zp(this,!0)}}else if(!this.restore(a))return!1;if(c=this.qa.listDrives){for(;c.firstChild;)c.removeChild(c.firstChild);c.value="";for(var d=0;d<this.ka;d++){var e=document.createElement("option");e.value=d;e.text=String.fromCharCode(65+d)+":";c.appendChild(e)}0<this.ka&&(c.value="0",tp(this,0))}}return!0};m.hc=function(a){return a?this.save():!0};m.reset=function(){vp(this)};
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m.save=function(){var a=new hf(this),b=0,c=[];c[b++]=this.hb;c[b++]=0;c[b++]=this.ma;c[b++]=this.W;c[b++]=this.L;c[b++]=this.C;c[b++]=this.aa;for(var d=b++,e=0,f=[],g=0;g<this.A.length;g++){var h=e++,k=this.A[g],l=0,n=[];n[l++]=k.Cb;n[l++]=[k.name,k.Bb,k.ub,k.lb,k.Va,k.bf,k.zg,k.Nf,k.Of];n[l++]=k.kb;n[l++]=k.ge+100;n[l++]=k.Rb;n[l++]=k.xb;n[l++]=k.he;n[l++]=k.Hb;n[l++]=k.eb;n[l++]=k.$e;n[l++]=k.kk;n[l]=k.Le;f[h]=n}c[d]=f;d=b++;for(e=0;e<this.A.length;e++)f=this.A[e],f.za&&Bp(this,f.Le,f.za);c[d]=
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@ -543,9 +543,9 @@ b+" changes applied)";b=-1;break}if(this.re){c="unable to modify write-protected
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l.toJSON=function(){var a;a=0;for(var b;b=im(this,a++);)qm(b);a=JSON.stringify(this.A,function(a,b){return"file"==a?void 0:b});a=a.replace(/,"length":512/gm,"").replace(/,"pattern":0/gm,"");a=a.replace(/"(sector|length|data|pattern)":/gm,"$1:");a=a.replace(/,"[^"]*":([0-9]+|true|false)/gm,"");a=a.replace(/(sector|length|data|pattern):/gm,'"$1":');return a=a.replace(/([\]}]),/gm,"$1,\n")};
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function qm(a){var b=a.data,c=b.length;if(c<<2==a.length){for(var d=c-1,e=b[d],f=0;d--&&b[d]===e;)f++;f++&&(b.length=c-f,a.pattern=e)}}function rm(a){Ia.call(this,"FDC",a,rm);this.dmaRead=this.qj;this.dmaWrite=this.rj;this.dmaFormat=this.Cj;this.K=a.autoMount||null;this.W=a.sortBy||"name";"none"==this.W&&(this.W=null);this.C=[];this.Y=!ya("Mobi")&&window&&"FileReader"in window}Qa(rm);aa={};
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var sm={3:{jd:3,yd:0,name:aa.Fm},4:{jd:2,yd:1,name:aa.Dm},5:{jd:9,yd:7,name:aa.Nm},6:{jd:9,yd:7,name:aa.ym},7:{jd:2,yd:0,name:aa.Am},8:{jd:1,yd:2,name:aa.Em},10:{jd:2,yd:7,name:aa.zm},13:{jd:6,yd:7,name:aa.km},15:{jd:3,yd:0,name:aa.Cm}};l=rm.prototype;
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(a=a.ta)?(a=za(pm(a),"octet-stream",!0,a.nh.replace(".json",".img")),n(a)):d.Ba("No diskette loaded in drive."):d.Ba("No diskette drive selected."))};return!0;case "mountDrive":if(!this.Y){c.parentNode.removeChild(c);break}this.ka[b]=c;c.addEventListener("change",function(){var a=c.children[0];a.children[1].disabled=!a.children[0].files.length});c.onsubmit=function(a){if(a=a.currentTarget[1].files[0]){var b=a.name;um(d,fa(b,!0),b,a)}return!1};return!0}return!1};
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l.pc=function(a,b,c,d){this.ha=b;this.A=c;this.Ia=d;this.ba=a;this.P=kb(a,"ChipSet");if((this.K=jc(this.ba,"autoMount")||this.K)&&"string"==typeof this.K)try{this.K=eval("("+this.K+")")}catch(e){n("FDC auto-mount error: "+e.message+" ("+this.K+")"),this.K=null}vm(this);Nb(b,this,wm);Pb(b,this,xm);ym(this,"None","",!0);this.Y&&ym(this,"Local Disk","?");ym(this,"Remote Disk","??");zm(this)||ab(this)};
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l.Vb=function(a,b){if(!b){if(!a||!this.restore){if(this.reset(),this.ba.jg){this.C=[];for(var c=0;c<this.B.length;c++)Am(this,c,!0);zm(this,!0)}}else if(!this.restore(a))return!1;if(c=this.ka.listDrives){for(;c.firstChild;)c.removeChild(c.firstChild);c.value="";for(var d=0;d<this.Z;d++){var e=document.createElement("option");e.value=d;e.text=String.fromCharCode(65+d)+":";c.appendChild(e)}0<this.Z&&(c.value="0",tm(this,0))}}return!0};l.Ub=function(a){return a?this.save():!0};l.reset=function(){vm(this)};
|
||||
l.save=function(){var a=new ce(this),b=0,c=[];c[b++]=this.Qa;c[b++]=0;c[b++]=this.aa;c[b++]=this.I;c[b++]=this.G;c[b++]=this.D;c[b++]=this.S;for(var d=b++,e=0,f=[],g=0;g<this.B.length;g++){var h=e++,k=this.B[g],m=0,p=[];p[m++]=k.kb;p[m++]=[k.name,k.ib,k.jb,k.eb,k.nb,k.oe,k.Hf,k.Ue,k.Ve];p[m++]=k.Ya;p[m++]=k.wd+100;p[m++]=k.xb;p[m++]=k.mb;p[m++]=k.xd;p[m++]=k.wb;p[m++]=k.Ua;p[m++]=k.me;p[m++]=k.ij;p[m]=k.Vd;f[h]=p}c[d]=f;d=b++;for(e=0;e<this.B.length;e++)f=this.B[e],f.ta&&Bm(this,f.Vd,f.ta);c[d]=this.C;
|
||||
|
|
|
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Reference in a new issue