DIRECTORY
AMBridge USING [SomeRefFromTV, TVForReferent],
AMTypes USING [TV],
Buttons USING [Create, ReLabel],
Convert USING [CardFromRope],
DebuggerDefs -- using lots -- ,
FS USING [Error, FileInfo, StreamOpen],
Interpreter USING [Evaluate],
IO,
Labels USING [Create, Set],
List USING [CompareProc, Sort],
Process USING [Detach, Milliseconds, PauseMsec],
Rope,
SoftcardOps,
SoftcardToolPrivate,
SymTab USING [Create, Ref, Store],
ViewerTools USING [GetContents, MakeNewTextViewer, SetSelection];

SoftcardToolQuadIOImpl: CEDAR MONITOR
IMPORTS
AMBridge, Interpreter,
Buttons, Convert, FS, IO, Labels, List, Process, Rope, SymTab, ViewerTools,
SoftcardOps, SoftcardToolPrivate,
DD: DebuggerDefs
EXPORTS	SoftcardToolPrivate =

BEGIN OPEN SoftcardToolPrivate;

Word: TYPE = CARD32;
STREAM: TYPE = IO.STREAM;
ROPE: TYPE = Rope.ROPE;
Memory: TYPE = REF MemoryRec;
MemoryRec: TYPE = RECORD [
sym: SymTab.Ref, wds: REF MemWords, sortedSyms: REF SortedSyms,
lowestAddr: Word _ 0,
highestAddr: Word _ 0];
MemWords: TYPE = RECORD [SEQUENCE size: CARDINAL OF MemWord];
MemWord: TYPE = RECORD [addr, value: Word];
SortedSyms: TYPE = RECORD [SEQUENCE size: CARDINAL OF SymbolAddr];
SymbolAddr: TYPE = REF SymbolAddrRec;
SymbolAddrRec: TYPE = RECORD [sym: ROPE, addr: Word];

quadMemory: Memory;
quadFileNameText: Viewer;
interpretWhatText, showInterpretResult: Viewer;

debuggerWatcherButton, autoDumpDebuggerButton, autoRestartDebuggerButton: Viewer;
watcherWait: Process.Milliseconds _ 100;
watchingDebugger: BOOL _ FALSE;
autoDumpDebuggerState: BOOL _ FALSE;
autoRestartDebugger: BOOL _ FALSE;
debuggerWatchAddr: CARD32 = DD.debugBase + DD.debuggerProceed;
dumpBaseAddr: CARD32 = DD.debugBase + DD.debuggerOpcode;
numToDump: CARD16 = DD.euRegBase + DD.EUStackSize + DD.EUAuxRegs +
DD.EUConstants + 2*DD.IFUStackSize;
debuggerWatchSCAddr: CARD32 =
	SoftcardToolPrivate.DragonToSoftcardAddr[debuggerWatchAddr];
dumpBaseSCAddr: CARD32 = SoftcardToolPrivate.DragonToSoftcardAddr[dumpBaseAddr];
debuggerState: SoftcardOps.SeqLong;

BuildQuadIOButtons: PUBLIC PROC[topViewer, sibx: Viewer] RETURNS[sib: Viewer] = {
sib _ sibx;
sib _ Buttons.Create[
info: [ name: " LoadQuadFile ", parent: topViewer,
	wx: leftEdge, wy: sib.wy+sib.wh+betweenHeight, wh: entryHeight,
	border: TRUE, scrollable: FALSE],
font: activeFont, proc: LoadQuadFileProc ];
sib _ Buttons.Create[
info: [ name: " fileName: ", parent: topViewer,
	wx: sib.wx+sib.ww+xFudge, wy: sib.wy, wh: entryHeight,
	border: FALSE, scrollable: FALSE],
font: selectFont, proc: QuadFileNameProc ];
sib _ quadFileNameText _ ViewerTools.MakeNewTextViewer[
info: [parent: topViewer, wx: sib.wx+sib.ww+xFudge+6, wy: sib.wy,
	ww: 300, wh: entryHeight, border: FALSE, scrollable: FALSE]];

watchingDebugger _ FALSE;
sib _ Labels.Create[
info: [ name: " Debugger ", parent: topViewer,
	wx: leftEdge, wy: sib.wy+sib.wh+betweenHeight, wh: entryHeight,
	border: FALSE, scrollable: FALSE],
font: labelFont ];
sib _ debuggerWatcherButton _ Buttons.Create[
info: [ name: " WatcherOff ", parent: topViewer,
	wx: sib.wx+sib.ww+xFudge, wy: sib.wy, wh: entryHeight,
	border: TRUE, scrollable: FALSE],
font: selectFont, proc: DebuggerWatcherProc ];
autoDumpDebuggerState _ FALSE;
sib _ autoDumpDebuggerButton _ Buttons.Create[
info: [ name: " AutoDumpOff ", parent: topViewer,
	wx: sib.wx+sib.ww+xFudge, wy: sib.wy, wh: entryHeight,
	border: TRUE, scrollable: FALSE],
font: selectFont, proc: AutoDumpDebuggerProc ];
autoRestartDebugger _ FALSE;
sib _ autoRestartDebuggerButton _ Buttons.Create[
info: [ name: " AutoRestartOff ", parent: topViewer,
	wx: sib.wx+sib.ww+xFudge, wy: sib.wy, wh: entryHeight,
	border: TRUE, scrollable: FALSE],
font: selectFont, proc: AutoRestartDebuggerProc ];
sib _ Buttons.Create[
info: [ name: " DumpState ", parent: topViewer,
	wx: sib.wx+sib.ww+xFudge, wy: sib.wy, wh: entryHeight,
	border: TRUE, scrollable: FALSE],
font: activeFont, proc: DumpDebuggerStateProc ];
sib _ Buttons.Create[
info: [ name: " Restart ", parent: topViewer,
	wx: sib.wx+sib.ww+xFudge, wy: sib.wy, wh: entryHeight,
	border: TRUE, scrollable: FALSE],
font: activeFont, proc: RestartDebuggerProc ];

sib _ Buttons.Create[
info: [ name: " InterpSym ", parent: topViewer,
	wx: leftEdge, wy: sib.wy+sib.wh+betweenHeight, wh: entryHeight,
	border: TRUE, scrollable: FALSE],
font: activeFont, proc: InterpSymbolProc ];
sib _ Buttons.Create[
info: [ name: " InterpAddr ", parent: topViewer,
	wx: sib.wx+sib.ww+xFudge, wy: sib.wy, wh: entryHeight,
	border: TRUE, scrollable: FALSE],
font: activeFont, proc: InterpAddrProc ];
sib _ Buttons.Create[
info: [ name: " what: ", parent: topViewer,
	wx: sib.wx+sib.ww+xFudge, wy: sib.wy, wh: entryHeight,
	border: FALSE, scrollable: FALSE],
font: selectFont, proc: InterpretWhatProc ];
sib _ interpretWhatText _ ViewerTools.MakeNewTextViewer[
info: [parent: topViewer, wx: sib.wx+sib.ww+xFudge, wy: sib.wy,
	ww: 400, wh: entryHeight, border: FALSE, scrollable: FALSE]];

sib _ Labels.Create[
info: [ name: " result: ", parent: topViewer,
	wx: leftEdge+40, wy: sib.wy+sib.wh+betweenHeight, wh: entryHeight,
	border: FALSE, scrollable: FALSE],
font: labelFont ];

sib _ showInterpretResult _ Labels.Create[
info: [ name: "                                                                       ",
	parent: topViewer,
	wx: sib.wx+sib.ww+xFudge, wy: sib.wy, wh: entryHeight,
	border: FALSE, scrollable: FALSE]
 ];

RETURN[sib];
};

LoadQuadFileProc: ClickProc = {
fName: ROPE _ ViewerTools.GetContents[quadFileNameText];
fullName: ROPE;
numLeft: CARD16 _ 0;
indexThisRound, pushIndex: CARD16 _ 0;
PushAddrVal: PROC RETURNS[addr: SoftcardOps.Addr, value: CARD32] = {
addr _ ByteAddrToSoftcardAddr[quadMemory.wds[pushIndex].addr];
value _ quadMemory.wds[pushIndex].value;
pushIndex _ pushIndex + 1;
};
IF fName.Length[] = 0 THEN {
TSOutPutRope["\n**** Please fill in the name of a quad file\n"];
RETURN
};
IF fName.Find["."] < 0 THEN fName _ fName.Concat[".quad"];
fullName _ FS.FileInfo[name: fName, remoteCheck: FALSE, wDir: regDir
! FS.Error => {
TSOutPutRope[error.explanation];
TSOutPutChar['\n];
GOTO nogood } ].fullFName;
quadMemory _ ReadQuadFile[fullName];
IF quadMemory = NIL THEN RETURN;		-- some error, already reported

numLeft _ quadMemory.wds.size;
WHILE numLeft > 256 DO
SoftcardOps.WriteMultipleLong[256, PushAddrVal];
numLeft _ numLeft - 256;
ENDLOOP;
IF numLeft > 0 THEN SoftcardOps.WriteMultipleLong[numLeft, PushAddrVal];

TSOutPutF["\n\tQuadFile %g (%g instructions) has been loaded\n\n",
[rope[fullName]], [cardinal[quadMemory.wds.size]] ];
EXITS
nogood => NULL;
};

QuadFileNameProc: ClickProc =
{ ViewerTools.SetSelection[quadFileNameText, NIL] };

DebuggerWatcherProc: ClickProc = {
IF DebuggerWatching[changeState: TRUE] THEN
Buttons.ReLabel[debuggerWatcherButton, " WatcherOff "]
ELSE Buttons.ReLabel[debuggerWatcherButton, " WatcherOn "]
};

DebuggerWatching: ENTRY PROC[changeState: BOOL] RETURNS[BOOL] = {
IF ~changeState THEN RETURN[watchingDebugger];
watchingDebugger _ ~watchingDebugger;
RETURN[~watchingDebugger];	-- if changeState return previous value
};

AutoDumpDebuggerProc: ClickProc = {
IF AutoDumpDebuggerState[changeState: TRUE] THEN
Buttons.ReLabel[autoDumpDebuggerButton, " AutoDumpOff "]
ELSE Buttons.ReLabel[autoDumpDebuggerButton, " AutoDumpOn "]
};

AutoDumpDebuggerState: ENTRY PROC[changeState: BOOL] RETURNS[BOOL] = {
IF ~changeState THEN RETURN[autoDumpDebuggerState];
autoDumpDebuggerState _ ~autoDumpDebuggerState;
RETURN[~autoDumpDebuggerState];	-- if changeState still return previous value
};

AutoRestartDebuggerProc: ClickProc = {
IF AutoRestart[changeState: TRUE] THEN
Buttons.ReLabel[autoRestartDebuggerButton, " AutoRestartOff "]
ELSE Buttons.ReLabel[autoRestartDebuggerButton, " AutoRestartOn "]
};

AutoRestart: ENTRY PROC[changeState: BOOL] RETURNS[BOOL] = {
IF ~changeState THEN RETURN[autoRestartDebugger];
autoRestartDebugger _ ~autoRestartDebugger;
RETURN[~autoRestartDebugger];	-- if changeState still return previous value
};

TheWatcherProc: PROC = {
alreadyReported: BOOL _ FALSE;
DO
BEGIN ENABLE SoftcardOps.SCError => GOTO scError;
IF ~DebuggerWatching[changeState: FALSE] THEN {
alreadyReported _ FALSE;
Process.PauseMsec[watcherWait];
LOOP;
};
IF SoftcardOps.ReadLong[debuggerWatchSCAddr] = 0 THEN {
alreadyReported _ FALSE;
Process.PauseMsec[watcherWait];
LOOP;
};
IF ~alreadyReported THEN {
TSOutPutRope["\n\n***** Debugger is in wait loop\n"];
alreadyReported _ TRUE;
debuggerState _ SoftcardOps.DumpLong[dumpBaseSCAddr, numToDump];
IF AutoDumpDebuggerState[changeState: FALSE] THEN DumpDebuggerState[];
IF AutoRestart[changeState: FALSE] THEN {
SoftcardOps.WriteLong[debuggerWatchSCAddr, 0];
alreadyReported _ FALSE;
};
};
Process.PauseMsec[watcherWait];
EXITS
scError => Process.PauseMsec[10*watcherWait];
END;
ENDLOOP;
};

DumpDebuggerStateProc: ClickProc = { DumpDebuggerState[] };

RestartDebuggerProc: ClickProc = {
SoftcardOps.WriteLong[debuggerWatchSCAddr, 0];
TSOutPutRope["\tRestarted the debugger\n"];
};

DumpDebuggerState: PROC = {
count: CARD16 _ numToDump;
seq: SoftcardOps.SeqLong = debuggerState; 
addr: CARD32 _ 0;
index: CARD16 _ 0;
format: ROPE = "  %04x";
TSOutPutRope["\n*****Dumping the state with no interpretation as yet\n"];
WHILE count >= 8 DO
TSOutPutF["%xH:", [cardinal[addr+index]] ];
FOR i: CARD16 IN [0..8) DO
TSOutPutF[format, [cardinal[seq[index+i]]] ];
ENDLOOP;
TSOutPutChar['\n];
index _ index + 8;
count _ count - 8;
ENDLOOP;
IF count # 0 THEN {
TSOutPutF["%xH:", [cardinal[addr+index]] ];
FOR i: CARD16 IN [0..count) DO
TSOutPutF[format, [cardinal[seq[index+i]]] ];
ENDLOOP;
TSOutPutChar['\n];
};
};

InterpSymbolProc: ClickProc = {
what: ROPE = ViewerTools.GetContents[interpretWhatText];
rp: ROPE;
addr: CARD32;
ok: BOOL;
IF what.Length[] = 0 THEN {
TSOutPutRope["\n Please fill in the Interpret \"what\" field\n"];
RETURN
};
[ok, addr] _ InterpretSymAsAddr[what, quadMemory];
IF ok = FALSE THEN {
Labels.Set[showInterpretResult, " ??? "];
RETURN;
};
Labels.Set[showInterpretResult, rp _ IO.PutFR["0%xH", [cardinal[addr]]] ];
TSOutPutF["Expression \"%g\" has dragon byte address %g\n",
[rope[what]], [rope[rp]] ];
};

InterpAddrProc: ClickProc = {
what: ROPE = ViewerTools.GetContents[interpretWhatText];
ok: BOOL;
rp: ROPE;
addr: CARD32;
[ok, addr] _ CheckedGetAsCard[interpretWhatText, "Interpret \"what\"", LAST[CARD32]];
IF ~ok THEN RETURN;
[ok, rp] _ InterpretAddrAsSym[addr, quadMemory];
Labels.Set[showInterpretResult, rp];
IF ok THEN
TSOutPutF["The symbol for dragon byte address \"%g\" is : %g\n",
	[rope[what]], [rope[rp]] ];
};

InterpretWhatProc: ClickProc =
{ ViewerTools.SetSelection[interpretWhatText, NIL] };

ReadQuadFile: PROC[fileName: ROPE] RETURNS[mem: Memory] = {
quadFile:	STREAM _ FS.StreamOpen[fileName];
count: INT _ 0;
list: LIST OF MemWord _ NIL;
symList: LIST OF SymbolAddr _ NIL;
numSyms: CARD16 _ 0;
mem _ NEW[MemoryRec _ [sym: SymTab.Create[]]];
DO 
Skip: PROC [source: STREAM, c: CHAR] RETURNS[BOOL] ~ {
ch: CHAR;
[] _ source.SkipWhitespace[];
IF (ch _ source.GetChar[]) # c THEN {
TSOutPutF[" Bad char %g (expected %g) at pos %g in quadFile %g - quitting\n",
[character[c]], [character[ch]], [integer[source.GetIndex[]]], [rope[fileName]] ];
RETURN[FALSE];
};
RETURN[TRUE];
};
tokenKind: IO.TokenKind;
token: ROPE;
addr, value: Word;
[tokenKind, token] _ quadFile.GetCedarTokenRope[! IO.EndOfStream => EXIT];
SELECT tokenKind FROM
tokenDECIMAL,
tokenOCTAL,
tokenHEX => {
addr _ Convert.CardFromRope[token];
value _ 0;
IF ~Skip[quadFile, '/]  THEN {
quadFile.Close[];
RETURN[NIL];
};
THROUGH [0..4) DO value _ value*100H + quadFile.GetCard[] ENDLOOP;
list _ CONS[[addr, value], list];
count _ count+1
};
tokenID => {
IF ~Skip[quadFile, '=] THEN {
quadFile.Close[];
RETURN[NIL];
};
addr _ quadFile.GetCard[];
symList _ CONS[NEW[SymbolAddrRec _ [token, addr]], symList];
numSyms _ numSyms + 1;
[] _ SymTab.Store[mem.sym, token, TVFromRef[NEW[Word _ addr]]]
};
tokenEOF => EXIT;
ENDCASE => {
TSOutPutF["\n****Unknown tokenKind in quadFile %g at pos %g - quitting\n",
[rope[fileName]], [integer[quadFile.GetIndex[]]] ];
quadFile.Close[];
RETURN[NIL];
};
ENDLOOP;
quadFile.Close[];
mem.wds _ NEW[MemWords[count]];
FOR i: INT DECREASING IN [0..count) DO
mem.wds[i] _ list.first;
list _ list.rest
ENDLOOP;
mem.lowestAddr _ mem.wds[0].addr;
mem.highestAddr _ mem.wds[count-1].addr;
IF numSyms # 0 THEN {
MySort: List.CompareProc = {
sa1: SymbolAddr = NARROW[ref1];
sa2: SymbolAddr = NARROW[ref2];
IF sa1.addr < sa2.addr THEN RETURN[less];
IF sa1.addr = sa2.addr THEN RETURN[equal];
RETURN[greater];
};
TRUSTED { symList _ LOOPHOLE[List.Sort[LOOPHOLE[symList], MySort] ] };
mem.sortedSyms _ NEW[SortedSyms[numSyms]];
FOR i: CARD16 IN [0..numSyms) DO
mem.sortedSyms[i] _ symList.first;
symList _ symList.rest;
ENDLOOP;
};
};

InterpretSymAsAddr: PROC[rp: ROPE, mem: Memory] RETURNS[ok: BOOL, addr: Word] = {
result: AMTypes.TV;
errorRope: ROPE;
noResult: BOOL;
refCard: REF;
[result, errorRope, noResult] _ Interpreter.Evaluate[rp, NIL, LIST[mem.sym]];
IF noResult THEN {
addr _ 0;
TSOutPutF["\n*****Could not interpret \"%g\" - quitting\n", [rope[rp]] ];
RETURN[FALSE, addr]};
refCard _ RefFromTV[result];
WITH refCard SELECT FROM
word: REF Word => {RETURN[TRUE, word^]};
card: REF LONG CARDINAL	=> {RETURN[TRUE, card^]};
int: REF INT => {
IF int^ < 0 THEN RETURN[FALSE, 0];
RETURN[TRUE, int^]
};
ENDCASE => {
TSOutPutF["\n*****Unknown variant for \"%g\" - quitting\n", [rope[rp]] ];
RETURN[FALSE, 0];
};
};

InterpretAddrAsSym: PROC[addr: CARD32, mem: Memory] RETURNS[ok: BOOL, rp: ROPE] = {
sortedSyms: REF SortedSyms = mem.sortedSyms;
num: CARD16 = IF sortedSyms = NIL THEN 0 ELSE sortedSyms.size;
ok _ FALSE;
rp _ " ??? ";
IF addr < mem.lowestAddr THEN {
TSOutPutF["***%xH is smaller than any address (%xH)\n",
[cardinal[addr]], [cardinal[mem.lowestAddr]] ];
RETURN
};
IF addr > mem.highestAddr THEN {
TSOutPutF["***%xH is larger than any address (%xH)\n",
[cardinal[addr]], [cardinal[mem.highestAddr]] ];
RETURN
};
IF sortedSyms = NIL THEN {
TSOutPutRope["\t*****Loaded file had no symbols\n"];
RETURN;
};
IF addr < sortedSyms[0].addr THEN {
diff: CARD32 = sortedSyms[0].addr - addr;
RETURN[TRUE, IO.PutFR["%g-%xH", [rope[sortedSyms[0].sym]], [cardinal[diff]]] ];
};
IF addr > sortedSyms[num-1].addr THEN {
diff: CARD32 = addr - sortedSyms[num-1].addr;
RETURN[TRUE, IO.PutFR["%g+%xH", [rope[sortedSyms[num-1].sym]], [cardinal[diff]]] ];
};

FOR i: CARD16 IN [0..num) DO
diff: CARD32;
IF addr > sortedSyms[i].addr THEN LOOP;
IF addr = sortedSyms[i].addr THEN RETURN[TRUE, sortedSyms[i].sym];
diff _ addr - sortedSyms[i-1].addr;
RETURN[TRUE, IO.PutFR["%g+%xH", [rope[sortedSyms[i-1].sym]], [cardinal[diff]]] ];
ENDLOOP;
};

TVFromRef: PROC [ref: REF] RETURNS [AMTypes.TV] = TRUSTED 
{ RETURN [AMBridge.TVForReferent[ref]] };

RefFromTV: PROC [tv: REF] RETURNS [REF] = {
IF tv = NIL THEN RETURN [NIL];
IF ~ISTYPE [tv, AMTypes.TV] THEN ERROR; 
TRUSTED {RETURN [AMBridge.SomeRefFromTV[tv]]}
};

ByteAddrToSoftcardAddr: PUBLIC PROC[addr: CARD32] RETURNS[softAddr: CARD32] = {
softAddr _ 100000H+(addr MOD 100000H)/2;
};

TRUSTED { Process.Detach[FORK TheWatcherProc] };

END.

(SoftcardToolQuadIOImpl.mesa
Copyright Σ 1987 by Xerox Corporation.  All rights reserved.
Don Curry, March 16, 1987 5:11:02 pm PST
Willie-Sue, March 26, 1987 1:58:25 pm PST
Load Quad file (dragon code)


DebuggerWatcher for dragon code






Interpret symbol for dragon code



start code

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