More build option groundwork
This commit is contained in:
Jeff Parsons
parent
e4cee436cc
commit
7913ef2a0a
7 changed files with 111 additions and 35 deletions
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<div id="{{ include.id }}"></div>
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<div class="pcbuild" id="{{ include.id }}"></div>
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@ -142,10 +142,10 @@ FOOTBALL Design Document
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---
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The following text is from an email titled "3xBox Design Document" sent to the
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*football* alias on Saturday, February 28, 1987, at 5:02pm.
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### Overview
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Microsoft *football* alias on Saturday, February 28, 1987, at 5:02pm.
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Overview
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--------
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The goal for this research project was to demonstrate the feasability of
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supporting multiple virtual DOS 3.x machines on a 286DOS-based kernel running
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on an 386 personal computer. Each "3xBox" would have its own virtual screen,
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@ -174,8 +174,8 @@ The following text is from an email titled "3xBox Design Document" sent to the
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Unless stated otherwise, most of the concepts extant in 286DOS apply to 386DOS.
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### V86 Mode and the 386
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V86 Mode and the 386
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----------------------
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The 386 CPU has three distinct execution modes: REAL, PROT, and V86. REAL
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and PROT modes are largely compatible with the corresponding modes of an 286.
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V86 modes is exactly the same as RING 3 PROT mode, with the following
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@ -203,8 +203,8 @@ The following text is from an email titled "3xBox Design Document" sent to the
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sensitive.
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This allows the OS to simulate the Interrupt Flag, if desired.
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### V86 IRETD Frame
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V86 IRETD Frame
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---------------
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When any interrupt, trap, exception, or fault occurs in V86 mode, the CPU
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switches to PROT mode and switches to the TSS Ring 0 Stack and builds the
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following stack frame:
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@ -219,8 +219,8 @@ The following text is from an email titled "3xBox Design Document" sent to the
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(0) (old CS)
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(old EIP) <- (SS:SP)
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### CPU Mode Determination
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CPU Mode Determination
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----------------------
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A new implementation of the WHATMODE macro was written in order to distinguish
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between the three CPU modes: REAL, PROT, and V86. REAL mode is indicated by
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a 0 PE bit in CR0 (a.k.a. MSW on a 286). If the PE bit is 1, then the mode
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@ -230,8 +230,8 @@ The following text is from an email titled "3xBox Design Document" sent to the
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be changed. So, we change IOPL and then check to see if it changed. If so,
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PROT mode, else V86 mode.
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### CPU Mode Switching
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CPU Mode Switching
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------------------
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The 286DOS kernel relies extensively on switching inbetween REAL and PROT.
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This functionality is provided by the RealMode and ProtMode routines.
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In 386DOS, RealMode is no longer needed. As soon as we switch to PROT mode
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@ -256,28 +256,28 @@ The following text is from an email titled "3xBox Design Document" sent to the
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the caller. NOTE: V86 Services is also used for completing the 386 LOADALL
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used by PhysToVirt to map "high" memory in "REAL" mode.
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### Stack Switching
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Stack Switching
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---------------
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In order to maintain the 286DOS mode switch and stack switch semantics
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when V86 mode is used, we have a new stack (the V86 Stack) in the 3xBox PTDA.
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### 286DOS Modes and Stacks
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286DOS Modes and Stacks
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-----------------------
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The RealMode and ProtMode procedures in 286DOS are the only ways to switch
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the CPU execution mode. These routines both maintain SS:SP, allowing
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RealMode and ProtMode to be reentrant. The TSS Ring 0 stack is always the
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current TCB stack in the current PTDA. The only other stacks in the system
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are the Interrupt Stack and user stack(s).
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### 386DOS Modes and Stacks
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386DOS Modes and Stacks
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-----------------------
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In 386DOS, any interrupt or exception while in V86 mode causes a switch to
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PROT mode and the TSS Ring 0 Stack. So we have a new way to mode switch with
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an incompatible stack semantic. We had to fix this mode switch to make it
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compatible with 286DOS.
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### Observation
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Observation
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-----------
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In V86 mode, the current stack must not be the TSS Ring 0 Stack. The CPU
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only leaves V86 mode via an interrupt/exception, which causes a stack switch
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to the TSS Ring 0 Stack. If the current stack was the same as the TSS Ring 0
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@ -285,8 +285,8 @@ The following text is from an email titled "3xBox Design Document" sent to the
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the PTDA. Since we run on this stack in V86 mode, we need a new Ring 0 stack
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when a 3xBox is running.
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### Approach
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Approach
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--------
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1) When a PMBox is running, the TSS Ring 0 Stack is a PTDA TCB stack.
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+ This is consistent with the 286DOS model.
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@ -298,8 +298,8 @@ The following text is from an email titled "3xBox Design Document" sent to the
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+ Otherwise, copy the V86 IRETD frame to the previous stack and
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switch back to the previous stack.
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### Details
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Details
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-------
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1) Leaving V86 mode
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a. V86ToProt (analog of ProtMode)
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+ Issue special V86ToProt software interrupt. If the interrupt
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@ -341,8 +341,8 @@ The following text is from an email titled "3xBox Design Document" sent to the
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+ Execute 386 LOADALL with VM bit set in EFLAGS image in loadall
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buffer.
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### Interrupt Management
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Interrupt Management
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--------------------
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All software interrupts, hardware interrupts, and CPU traps and exceptions
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are vectored through a common IDT, regardless of whether the CPU is in PROT
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or V86 mode.
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@ -352,8 +352,8 @@ The following text is from an email titled "3xBox Design Document" sent to the
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keyboard and mouse (since those are implicitly for the foreground box),
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can be given to background 3xBoxes.
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### Passing Hardware Interrupts to the Foreground 3xBox
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Passing Hardware Interrupts to the Foreground 3xBox
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---------------------------------------------------
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In the interrupt manager:
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IF a 3xBox is foreground -AND-
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@ -1210,10 +1210,10 @@ function lr(a,b,c){for(var d=hb(a.id),e=0;e<=d.length;e++){var f=e<d.length?d[e]
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h.Wf=function(a){void 0===a&&(a=this.Oc||(this.O?1:ir));if(!this.C){this.C++;var b=!1,c=!1;this.da=!1;var d=this.ia||new bf(this,kr);if(-1==a)b=!0;else if(a>ir){if(d.load(this.O)){this.R=new bf(this,kr,"failsafe");this.R.load()&&(nr(this,d),a=2,dr(this.R));cf(this.R,"timestamp",ta());er(this.R);var e=this.Oc&&!this.P;if(1==a||Ca("Click OK to restore the previous PCjs machine state, or CANCEL to reset the machine.")){if(c=fr(d)){var f=gr(d,"code"),g=gr(d,"data");f&&("ok"==f?d.load(g):("error"==f&&
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"no machine state"!=g?(this.Va("Error: "+g),"unable to verify user"==g&&(Ha("user",""),this.A=null)):this.S(f+": "+g),dr(d),d.load()?(c=fr(d),e=!0):c=!1))}e&&mr(this,c?d:null)}else 2==a&&d.clear()}else mr(this);delete this.O;delete this.ia}e=hb(this.id);for(f=0;f<e.length;f++)g=e[f],g!==this&&g!=this.M&&(c=or(this,g,d,b,c));b=[d,a,c];-1!=a?lr(this,this.Ki,b):this.Ki(b)}};
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h.Ki=function(a){var b=a[0],c=0>a[1];a=a[2];this.ra.hc=!0;var d=this.ya.power;d&&(d.textContent="Shutdown");this.tk||(this.S("PCjs v"+kr+"\nCopyright \u00a9 2012-2016 Jeff Parsons <Jeff@pcjs.org>\nLicense: GPL version 3 or later <http://gnu.org/licenses/gpl.html>"),this.tk=!0);this.M&&(or(this,this.M,b,c,a),Xc(this.M));this.da&&(nr(this,b),b.clear());!c&&this.R&&(this.R.clear(),delete this.R);this.C=0};
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function br(a,b,c){var d,e="none";if(a.C)return null;a.C--;var f=new bf(a,kr),g=new bf(a,kr,"validate"),k=ta();cf(g,"timestamp",k);cf(f,"timestamp",k);cf(f,"version","1.20.9");cf(f,"url",window?window.location.href:null);cf(f,"browser",window?window.navigator.userAgent:"");a.M&&a.M.kc&&(c&&a.M.bc(),d=a.M.kc(b,c),"object"===typeof d&&cf(f,a.M.id,d),c&&(a.M.ra.hc=!1,!1===d&&(e=null)));for(var k=hb(a.id),q=0;q<k.length;q++){var r=k[q];r.ra.hc&&(r.kc&&(d=r.kc(b,c),"object"===typeof d&&cf(f,r.id,d)),c&&
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(r.ra.hc=!1,!1===d&&(e=null)))}e&&(c?(k=d=!1,b?(a.A&&pr(a,a.A,f.toString()),er(g)&&er(f)||(e=null,d=k=!0)):a.Oc&&(d=!0,k=3==a.Oc),d&&f.clear(k)):e=f.toString());c&&(a.ra.hc=!1,b=a.ya.power)&&(b.textContent="Off");a.C=0;return e}h.reset=function(){this.ja&&this.ja.reset&&(qb(this,"Resetting "+this.ja.type),this.ja.reset());for(var a=hb(this.id),b=0;b<a.length;b++){var c=a[b];c!==this&&c!==this.ja&&c.reset&&(qb(this,"Resetting "+c.type),c.reset())}};
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(r.ra.hc=!1,!1===d&&(e=null)))}e&&(c?(k=d=!1,b?(a.A&&pr(a,a.A,f.toString()),er(g)&&er(f)||(e=null,d=k=!0)):a.Oc&&(d=!0,k=3==a.Oc),d&&f.clear(k)):e=f.toString());c&&(a.ra.hc=!1,b=a.ya.power)&&(b.textContent="Power");a.C=0;return e}h.reset=function(){this.ja&&this.ja.reset&&(qb(this,"Resetting "+this.ja.type),this.ja.reset());for(var a=hb(this.id),b=0;b<a.length;b++){var c=a[b];c!==this&&c!==this.ja&&c.reset&&(qb(this,"Resetting "+c.type),c.reset())}};
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h.start=function(a,b){for(var c=hb(this.id),d=0;d<c.length;d++){var e=c[d];"CPU"!=e.type&&e!==this&&e.start&&e.start(a,b)}};h.stop=function(a,b){for(var c=hb(this.id),d=0;d<c.length;d++){var e=c[d];"CPU"!=e.type&&e!==this&&e.stop&&e.stop(a,b)}};
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function(){var a=jr(d,!0);if(a){var b=!!(d.Oc&&!d.Eg||d.X),c=br(d,b);b?pr(d,a,c):d.Va("Resume disabled, machine state not saved")}},!0}return!1};function jr(a,b){var c=a.A;c||(c=Ga("user"),void 0!==c?!c&&b&&(c=null,window&&(c=window.prompt("Saving machine states on the pcjs.org server is currently unsupported.\n\nIf you're running your own server, enter your user ID below.","")),c&&((c=qr(a,c))||a.Va("The user ID is invalid."))):b&&a.Va("Browser local storage is not available"));return c}
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@ -1029,10 +1029,10 @@ function Qm(a,b,c){for(var d=Ra(a.id),e=0;e<=d.length;e++){var k=e<d.length?d[e]
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f.cf=function(a){void 0===a&&(a=this.rc||(this.J?1:Nm));if(!this.D){this.D++;var b=!1,c=!1;this.S=!1;var d=this.K||new Rd(this,Pm);if(-1==a)b=!0;else if(a>Nm){if(d.load(this.J)){this.F=new Rd(this,Pm,"failsafe");this.F.load()&&(Sm(this,d),a=2,Im(this.F));D(this.F,"timestamp",la());Jm(this.F);var e=this.rc&&!this.H;if(1==a||sa("Click OK to restore the previous PCjs machine state, or CANCEL to reset the machine.")){if(c=Km(d)){var k=Lm(d,"code"),l=Lm(d,"data");k&&("ok"==k?d.load(l):("error"==k&&"no machine state"!=
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l?(this.Ka("Error: "+l),"unable to verify user"==l&&(wa("user",""),this.B=null)):this.cc(k+": "+l),Im(d),d.load()?(c=Km(d),e=!0):c=!1))}e&&Rm(this,c?d:null)}else 2==a&&d.clear()}else Rm(this);delete this.J;delete this.K}e=Ra(this.id);for(k=0;k<e.length;k++)l=e[k],l!==this&&l!=this.A&&(c=Tm(this,l,d,b,c));b=[d,a,c];-1!=a?Qm(this,this.Rh,b):this.Rh(b)}};
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function Tm(a,b,c,d,e){if(!b.ja.Qb){b.ja.Qb=!0;if(b.Tb){var k=null;e&&((k=Lm(c,b.id))||(k=Lm(c,b.id.replace(/[a-z0-9]\./i,"."))));"string"===typeof k&&(k=null);!b.Tb(k,d)&&k&&(ra("Unable to restore state for "+b.type),a.O&&!a.W?(c.clear(),a.rc=Nm,window&&window.location.reload()):a.S=!0,b.Tb(null),e=!1)}if(!d&&b.Ch)for(a=b.Ch.split("|"),c=0;c<a.length;c++)b.status(a[c])}return e}
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f.Rh=function(a){var b=a[0],c=0>a[1];a=a[2];this.ja.Qb=!0;var d=this.qa.power;d&&(d.textContent="On");this.Dh||(this.cc("PCjs v"+Pm+"\nCopyright \u00a9 2012-2016 Jeff Parsons <Jeff@pcjs.org>\nLicense: GPL version 3 or later <http://gnu.org/licenses/gpl.html>"),this.Dh=!0);this.A&&(Tm(this,this.A,b,c,a),kc(this.A));this.S&&(Sm(this,b),b.clear());!c&&this.F&&(this.F.clear(),delete this.F);this.D=0};
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f.Rh=function(a){var b=a[0],c=0>a[1];a=a[2];this.ja.Qb=!0;var d=this.qa.power;d&&(d.textContent="Shutdown");this.Dh||(this.cc("PCjs v"+Pm+"\nCopyright \u00a9 2012-2016 Jeff Parsons <Jeff@pcjs.org>\nLicense: GPL version 3 or later <http://gnu.org/licenses/gpl.html>"),this.Dh=!0);this.A&&(Tm(this,this.A,b,c,a),kc(this.A));this.S&&(Sm(this,b),b.clear());!c&&this.F&&(this.F.clear(),delete this.F);this.D=0};
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!1,!1===d&&(e=null)))}e&&(c?(p=d=!1,b?(a.B&&Vm(a,a.B,k.toString()),Jm(l)&&Jm(k)||(e=null,d=p=!0)):a.rc&&(d=!0,p=3==a.rc),d&&k.clear(p)):e=k.toString());c&&(a.ja.Qb=!1,b=a.qa.power)&&(b.textContent="Off");a.D=0;return e}f.reset=function(){this.na&&this.na.reset&&this.na.reset();for(var a=Ra(this.id),b=0;b<a.length;b++){var c=a[b];c!==this&&c!==this.na&&c.reset&&c.reset()}};f.start=function(a,b){for(var c=Ra(this.id),d=0;d<c.length;d++){var e=c[d];"CPU"!=e.type&&e!==this&&e.start&&e.start(a,b)}};
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!1,!1===d&&(e=null)))}e&&(c?(p=d=!1,b?(a.B&&Vm(a,a.B,k.toString()),Jm(l)&&Jm(k)||(e=null,d=p=!0)):a.rc&&(d=!0,p=3==a.rc),d&&k.clear(p)):e=k.toString());c&&(a.ja.Qb=!1,b=a.qa.power)&&(b.textContent="Power");a.D=0;return e}f.reset=function(){this.na&&this.na.reset&&this.na.reset();for(var a=Ra(this.id),b=0;b<a.length;b++){var c=a[b];c!==this&&c!==this.na&&c.reset&&c.reset()}};f.start=function(a,b){for(var c=Ra(this.id),d=0;d<c.length;d++){var e=c[d];"CPU"!=e.type&&e!==this&&e.start&&e.start(a,b)}};
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f.stop=function(a,b){for(var c=Ra(this.id),d=0;d<c.length;d++){var e=c[d];"CPU"!=e.type&&e!==this&&e.stop&&e.stop(a,b)}};
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f.Eb=function(a,b,c){var d=this;switch(b){case "power":return this.qa[b]=c,c.onclick=function(){d.D||(d.ja.Qb?Um(d,!1,!0):Qm(d,d.cf))},!0;case "reset":return this.qa[b]=c,c.onclick=function(){if(d.ja.Qb&&!d.D)if(d.rc&&!d.uf){var a=sa("Click OK to save changes to this PCjs machine.\n\nWARNING: If you CANCEL, all disk changes will be discarded.");Um(d,a,!0);!a&&d.O?window&&window.location.reload():(a||(d.mg=!0),d.cf(Nm),d.mg=!1)}else d.reset(),d.A&&kc(d.A)},!0;case "save":return this.qa[b]=c,c.onclick=
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function(){var a=Om(d,!0);if(a){var b=!!(d.rc&&!d.uf||d.O),c=Um(d,b);b?Vm(d,a,c):d.Ka("Resume disabled, machine state not saved")}},!0}return!1};function Om(a,b){var c=a.B;c||(c=va("user"),void 0!==c?!c&&b&&(c=null,window&&(c=window.prompt("Saving machine states on the pcjs.org server is currently unsupported.\n\nIf you're running your own server, enter your user ID below.","")),c&&((c=Wm(a,c))||a.Ka("The user ID is invalid."))):b&&a.Ka("Browser local storage is not available"));return c}
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@ -1134,7 +1134,7 @@ MarkOut.prototype.convertMDMachineLinks = function(sBlock)
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reIncludes.lastIndex = 0; // reset lastIndex, since we just modified the string that reIncludes is iterating over
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}
|
||||
|
||||
sBlock = sBlock.replace(/\{%\s*include\s+build\.html\s+id=(["'])(.*?)\1\s*%}/g, '<div id=$1$2$1></div>');
|
||||
sBlock = sBlock.replace(/\{%\s*include\s+build\.html\s+id=(["'])(.*?)\1\s*%}/g, '<div class="pcbuild" id=$1$2$1></div>');
|
||||
|
||||
/*
|
||||
* Start looking for Markdown-style machine links now...
|
||||
|
|
|
|||
|
|
@ -36,6 +36,76 @@
|
|||
* This file provides all the UI options for building a functional PCjs PC.
|
||||
*/
|
||||
|
||||
var typeAddress = {
|
||||
type: "address"
|
||||
};
|
||||
|
||||
var typeBoolean = {
|
||||
type: "boolean"
|
||||
};
|
||||
|
||||
var typeNumber = {
|
||||
type: "number"
|
||||
};
|
||||
|
||||
var typePath = {
|
||||
type: "string"
|
||||
};
|
||||
|
||||
var typeString = {
|
||||
type: "string"
|
||||
};
|
||||
|
||||
var machineTypes = {
|
||||
'5150': "IBM PC (Model 5150)",
|
||||
'5160': "IBM PC XT (Model 5160)",
|
||||
'5170': "IBM PC AT (Model 5170)",
|
||||
'deskpro386': "COMPAQ DeskPro 386"
|
||||
};
|
||||
|
||||
var aMachineElements = {
|
||||
'machine': {
|
||||
choices: machineTypes
|
||||
},
|
||||
'name': {
|
||||
desc: "Machine Description"
|
||||
},
|
||||
'computer': {
|
||||
desc: "General Computer Features",
|
||||
'buswidth': {
|
||||
type: typeNumber,
|
||||
values: [20, 24, 32]
|
||||
},
|
||||
'resume': {
|
||||
type: typeNumber,
|
||||
value: [0, 1, 2],
|
||||
descs: ["Resume Disabled", "Resume Enabled", "Resume with Prompt"]
|
||||
}
|
||||
},
|
||||
'ram': {
|
||||
desc: "Read-Write Memory (Conventional or Extended)",
|
||||
'addr': {
|
||||
type: typeAddress
|
||||
},
|
||||
'size': {
|
||||
type: typeNumber
|
||||
}
|
||||
},
|
||||
'rom': {
|
||||
desc: "Read-Only Memory",
|
||||
'addr': {
|
||||
type: typeAddress
|
||||
},
|
||||
'size': {
|
||||
type: typeNumber
|
||||
},
|
||||
'file': {
|
||||
type: typePath
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* buildPC(idElement)
|
||||
*
|
||||
|
|
|
|||
|
|
@ -104,14 +104,20 @@ if (NODE) {
|
|||
*
|
||||
* The parmsMachine object, if provided, may contain any of:
|
||||
*
|
||||
* url: the location of the machine XML file
|
||||
*
|
||||
* autoMount: if set, this should override any 'autoMount' property in the FDC's
|
||||
* parmsFDC object.
|
||||
*
|
||||
* autoPower: if set, this should override any 'autoPower' property in the Computer's
|
||||
* parmsComputer object.
|
||||
*
|
||||
* messages: if set, this should override any 'messages' property in the Debugger's
|
||||
* parmsDbg object.
|
||||
*
|
||||
* state: if set, this should override any 'state' property in the Computer's
|
||||
* parmsComputer object.
|
||||
*
|
||||
* url: the location of the machine XML file
|
||||
*
|
||||
* If a predefined state is supplied AND it's successfully loaded, then resume behavior
|
||||
* defaults to '1' (ie, resume enabled without prompting).
|
||||
*
|
||||
|
|
|
|||
Loading…
Reference in a new issue