DIRECTORY
AMBridge USING
[GetWorld, IsStarted, TVForFrame, TVForGFHReferent, TVForProc, TVForRemoteFrame, TVForRemoteGFHReferent, TVToCardinal],
AMEvents USING [BreakID, ClearBreak, SetBreak],
AMModel USING [Context],
AMModelPrivate USING [FindMatchingGlobalFrames],
AMTypes USING[GetEmptyTV, Globals, IndexToName, IndexToTV, NComponents, TV, TVType],
BackStop USING [Call],
Commander USING [Handle],
Convert USING [RopeFromCard],  -- for non-standard number bases
EvalQuote USING [EvalQuoteProc, Register],
InterpreterOps USING [EnumerateSymbols, Eval, EvalHead, GetArg, RegisterTV, Ruminant, Tree, TreeToName, WorldFromHead],
InterpreterPrivate USING [GetGlobalSymTab],
IO USING [card, int, Put, PutChar, PutF, PutRope, rope, STREAM],
List USING [Assoc],
PPLeaves USING [LTIndex],
PrincOps USING [FrameCodeBase],
PrintTV USING [Print],
ProcessProps USING [GetPropList],
Rope USING [Cat, Fetch, Flatten, Length, Match, ROPE, Size, SkipTo],
SafeStorage USING [Type],
SymTab USING [Ref],
WorldVM USING [Address, CurrentIncarnation, LocalWorld, Long, LongRead, Read, World, Write];

OctalCommands: CEDAR MONITOR
IMPORTS
AMBridge, AMEvents, AMModelPrivate, AMTypes, BackStop, Convert, EvalQuote, InterpreterOps, InterpreterPrivate, IO, List, PrintTV, ProcessProps, Rope, WorldVM
= BEGIN OPEN Rope;

TV: TYPE = AMTypes.TV;
STREAM: TYPE = IO.STREAM;
Type: TYPE = SafeStorage.Type;

ShortAddrHack: CARDINAL = 100000B;

Bit1: TYPE = CARDINAL [0..2);
Bit2: TYPE = CARDINAL [0..4);
Bit4: TYPE = CARDINAL [0..16);
Bit8: TYPE = CARDINAL [0..256);

Array1: TYPE = PACKED ARRAY [0..16) OF Bit1;
Array2: TYPE = PACKED ARRAY [0..8) OF Bit2;
Array4: TYPE = PACKED ARRAY [0..4) OF Bit4;
Array8: TYPE = PACKED ARRAY [0..2) OF Bit8;

Pair: TYPE = MACHINE DEPENDENT RECORD [lo,hi: CARDINAL];

safetyCheck: BOOL _ TRUE;

Help: PROC [pattern: ROPE] = {
put: STREAM _ GetSTREAM[];
sTab: REF _ List.Assoc[$InterpreterSymTab, ProcessProps.GetPropList[]];
inner: InterpreterOps.Ruminant = {
IsDigit: PROC[ch: CHAR] RETURNS[BOOL] ={RETURN[ch IN ['0 .. '9]];};
IF Rope.Match[pattern, name, FALSE]
AND (name.Length[] < 2 OR name.Fetch[0] # '& OR NOT IsDigit[name.Fetch[1]])
THEN {
put.PutRope["  "];
put.PutRope[name];
put.PutRope[":  "];
put.PutRope[IF help # NIL THEN help ELSE "(no help rope)"];
put.PutRope["\n"];
};
RETURN[FALSE];
};
[] _ InterpreterOps.EnumerateSymbols[inner];
IF sTab # NIL
THEN TRUSTED{
[] _ InterpreterOps.EnumerateSymbols
				[proc: inner, symTab: LOOPHOLE[sTab, SymTab.Ref]];
};
};

FindMatching: PROC [name: ROPE, world: WorldVM.World _ NIL] = TRUSTED {
put: STREAM _ GetSTREAM[];
pos: INT _ name.SkipTo[0, "."];
globalName: ROPE _ name.Flatten[0, pos];
localName: ROPE _ IF (pos _ pos + 1) >= name.Size[] THEN NIL ELSE name.Flatten[pos];
tryElem: PROC [glob: TV, index: INT] = TRUSTED {
elem: TV _ NIL;
innerElem: PROC = TRUSTED {
elem _ AMTypes.IndexToTV[glob, index];
PrintTV.Print[elem, put];
put.PutRope["\n"];
};
msg: ROPE _ BackStop.Call[innerElem];
IF msg # NIL THEN
put.PutRope[Rope.Cat["--{", msg, "}--\n"]];
};
eachMatch: PROC[name: ROPE, gf: AMModel.Context] RETURNS[--stop:-- BOOL] = TRUSTED {
inner: PROC = TRUSTED {
glob: TV _ AMTypes.Globals[gf];
globType: Type _ AMTypes.TVType[glob];
n: NAT _ AMTypes.NComponents[globType];
first: BOOL _ TRUE;
FOR i: INT IN [1..n] DO
compName: ROPE _ AMTypes.IndexToName[globType, i];
IF NOT localName.Match[compName, FALSE] THEN LOOP;
IF first THEN {put.PutRope["\n"]; showGF[]; first _ FALSE};
put.PutRope["    "];
put.PutRope[compName];
put.PutRope[": "];
tryElem[glob, i];  
ENDLOOP;
};
showGF: PROC = TRUSTED {
put.PutRope["  "];
PrintTV.Print[gf, put];
IF NOT AMBridge.IsStarted[gf] THEN put.PutRope["~"];
put.PutRope["\n"];
};
msg: ROPE _ NIL;
IF localName = NIL THEN {showGF[]; RETURN[TRUE]};
msg _ BackStop.Call[inner];
IF msg # NIL THEN put.PutRope[Rope.Cat["  --{", msg, "}--\n"]];
RETURN[FALSE];
};
IF world = NIL THEN world _ WorldVM.LocalWorld[];
[] _ AMModelPrivate.FindMatchingGlobalFrames[world, globalName, eachMatch];
};

OctalRead: PUBLIC PROC [
addr: LONG CARDINAL _ 0, len: CARDINAL _ 4,
width: CARDINAL _ 16, base: CARDINAL _ 8,
offset: CARDINAL _ 0] = TRUSTED {
world: WorldVM.World _ GetDefaultWorld[];
p: WorldVM.Address _ addr;
pos: CARDINAL _ 0;
poslim: CARDINAL _ 8;
put: STREAM _ GetSTREAM[];
IF base NOT IN [1..36] THEN {put.Put[IO.rope["invalid base: "], IO.int[base]]; RETURN};
SELECT width FROM
1,2,4,8,16,32 => {};
ENDCASE => {put.Put[IO.rope["invalid width: "], IO.int[width]]; RETURN};
IF base < 8 OR width = 32 THEN poslim _ 4;  -- hack!
IF base = 1 THEN width _ 8; -- another hack!
SELECT LOOPHOLE[p, Pair].hi FROM
0 => {
p _ WorldVM.Long[world, p]};
ShortAddrHack => {
LOOPHOLE[p, Pair].hi _ 0;
};
ENDCASE;
WHILE len > 0 DO
card: LONG CARDINAL _ 0;
pp: WorldVM.Address _ p;
pint: INT _ 0;
lo: CARDINAL _ 0;
SELECT width FROM
1 => pp _ p + offset / 16;
2 => pp _ p + offset / 8;
4 => pp _ p + offset / 4;
8 => pp _ p + offset / 2;
16 => pp _ p + offset;
32 => pp _ p + offset + offset;
ENDCASE => ERROR;
IF safetyCheck AND NOT IsValidAddr[world, pp] THEN {
put.PutF["invalid address: %bB", IO.int[pp]];
RETURN};
card _ WorldVM.Read[world, pp];
lo _ LOOPHOLE[card, Pair].lo;
SELECT width FROM
1 => {
a: Array1 _ LOOPHOLE[lo];
card _ a[offset MOD 16]};
2 =>  {
a: Array2 _ LOOPHOLE[lo];
card _ a[offset MOD 8]};
4 => {
a: Array4 _ LOOPHOLE[lo];
card _ a[offset MOD 4]};
8 =>  {
a: Array8 _ LOOPHOLE[lo];
card _ a[offset MOD 2]};
16 => {};
32 =>  {
IF safetyCheck AND NOT IsValidAddr[world, pp+1] THEN {
put.PutF["invalid address: %bB", IO.int[pp + 1]];
RETURN};
LOOPHOLE[card, Pair].hi _ WorldVM.Read[world, pp+1];
};
ENDCASE => ERROR;
IF pos = poslim THEN {
pos _ 0;
IF base = 1 THEN put.PutChar['"];
put.PutChar['\n]};
IF pos = 0
THEN {
put.PutF["%bB: ", IO.int[pp]];
IF base = 1 THEN put.PutChar['"];
}
ELSE IF base # 1 THEN put.PutChar[' ];
pos _ pos + 1;
SELECT base FROM
10 => put.Put[[cardinal[card]]];
8 => put.PutF["%bB", [cardinal[card]]];
1 => {
-- print the ASCII value
short: CARDINAL _ card;
IF short IN [40B..176B]
THEN {
c: CHAR _ LOOPHOLE[short];
IF c = '" OR c = '\\ THEN
put.PutChar['\\];
put.PutChar[c]}
ELSE put.PutF["\\%bB", IO.int[card]]};
ENDCASE => put.PutRope[Convert.RopeFromCard[from: card, base: base]];
offset _ offset + 1;
len _ len - 1;
ENDLOOP;
IF base = 1 THEN put.PutChar['"];
put.PutChar['\n];
};   

OctalReadShort: PROC [
addr: CARDINAL _ 0, len: CARDINAL _ 4,
width: CARDINAL _ 16, base: CARDINAL _ 8, offset: CARDINAL _ 0] = {
p: Pair _ [lo: addr, hi: ShortAddrHack];
OctalRead[LOOPHOLE[p], len, width, base, offset];
};

OctalWrite: PROC [
addr: LONG CARDINAL _ 0, word: CARDINAL _ 0, len: INT _ 1] = TRUSTED {
world: WorldVM.World _ GetDefaultWorld[];
pair: Pair _ LOOPHOLE[addr];
p: WorldVM.Address _ LOOPHOLE[addr];
fault: WorldVM.Address _ 0;
SELECT pair.hi FROM
0 => {
p _ WorldVM.Long[world, p]};
ShortAddrHack => {
pair.hi _ 0;
p _ LOOPHOLE[pair];
};
ENDCASE;
IF addr = 0 OR p = 0 THEN {
put: STREAM _ GetSTREAM[];
put.PutRope["can't write through NIL"];
};
FOR i: INT IN [0..len) DO
ENABLE {
ABORTED => GO TO abort;
ANY => {fault _ p+i; EXIT}; 
}; 
WorldVM.Write[world, p+i, word];
ENDLOOP;
IF fault # 0 THEN {
put: STREAM _ GetSTREAM[];
put.PutF["invalid address: %bB", IO.int[fault]];
};
EXITS abort => ERROR ABORTED;
};

OctalWriteShort: PROC [
addr: CARDINAL _ 0, word: CARDINAL _ 0, len: INT _ 1] = {
p: Pair _ [lo: addr, hi: ShortAddrHack];
OctalWrite[LOOPHOLE[p], word];
};

AsciiRead: PROC
[addr: LONG CARDINAL _ 0, bytes: NAT _ 8] = {
IF addr = 0 THEN RETURN;
OctalRead[addr, bytes, 8, 1, 0];
};

AsciiReadShort: PROC
[addr: CARDINAL _ 0, bytes: NAT _ 8] = {
p: Pair _ [lo: addr, hi: ShortAddrHack];
OctalRead[LOOPHOLE[p], bytes, 8, 1, 0];
};

OctalReadCode: PROC
[gf,pc: CARDINAL, bytes: CARDINAL _ 8] = TRUSTED {
OctalRead[GetCodeBase[GetDefaultWorld[], gf], bytes, 8, 8, pc];
};

OctalFindCode: PROC [
gf: CARDINAL, pc: CARDINAL _ 0, 
b0,b1,b2,b3,b4,b5,b6,b7,b8,b9: CARDINAL _ 0] = TRUSTED {
put: STREAM _ GetSTREAM[];
addr: WorldVM.Address _ 0;
world: WorldVM.World _ GetDefaultWorld[];
{ ENABLE InvalidAddress => {put.PutF["invalid address: %bB", IO.int[bad]]; GOTO bye};
target: ARRAY [0..10) OF CARDINAL = [b0,b1,b2,b3,b4,b5,b6,b7,b8,b9];
len: CARDINAL _ 10;
addr _ GetCodeBase[world, gf];
WHILE len > 0 DO
IF target[len-1] # 0 THEN EXIT;
len _ len - 1;
ENDLOOP;
IF len = 0 THEN RETURN;
DO
IF ReadByte[world, addr, pc] = b0 THEN {
found: BOOL _ TRUE;
FOR i: CARDINAL IN [1..len) WHILE found DO
found _ ReadByte[world, addr, pc+i] = target[i];
ENDLOOP;
IF found THEN EXIT};
pc _ pc + 1;
ENDLOOP;
put.PutF["pc = %bB", IO.int[pc]];
OctalRead[addr + (pc/2), len, 8, 8, pc MOD 2]
};
EXITS
bye => {};
};

HelpHelper: EvalQuote.EvalQuoteProc = TRUSTED {
arg: InterpreterOps.Tree _ InterpreterOps.GetArg[tree, 1];
rope: ROPE _ InterpreterOps.TreeToName[arg];
IF rope = NIL THEN
WITH arg SELECT FROM
lit: PPLeaves.LTIndex => 
WITH lit.value SELECT FROM
ropeVal: ROPE => rope _ ropeVal;
ENDCASE;
ENDCASE;
Help[rope];
RETURN [AMTypes.GetEmptyTV[]];
};

FindMatchingHelper: EvalQuote.EvalQuoteProc = TRUSTED {
arg: InterpreterOps.Tree _ InterpreterOps.GetArg[tree, 1];
rope: ROPE _ InterpreterOps.TreeToName[arg];
IF rope = NIL THEN
WITH arg SELECT FROM
lit: PPLeaves.LTIndex => 
WITH lit.value SELECT FROM
ropeVal: ROPE => rope _ ropeVal;
ENDCASE;
ENDCASE;
FindMatching[rope];
RETURN [AMTypes.GetEmptyTV[]];
};

InvalidAddress: ERROR [bad: WorldVM.Address] = CODE;
ReadByte: PROC [world: WorldVM.World, addr: WorldVM.Address, pc: CARDINAL] RETURNS [Bit8] = TRUSTED {
card: CARDINAL _ 0;
addr _ addr + (pc / 2);
IF safetyCheck AND NOT IsValidAddr[world, addr] THEN
ERROR InvalidAddress[addr];
pc _ pc MOD 2;
card _ WorldVM.Read[world, addr];
RETURN [LOOPHOLE[card, Array8][pc]];
};

SetOctalBreak: PUBLIC PROC [gf,pc: CARDINAL] = TRUSTED {
world: WorldVM.World _ GetDefaultWorld[];
put: STREAM _ GetSTREAM[];
id: AMEvents.BreakID _ NIL;
msg: ROPE _ NIL;
inner: PROC = TRUSTED {
tv: TV _ 
IF world = WorldVM.LocalWorld[]
THEN AMBridge.TVForGFHReferent[LOOPHOLE[gf]]
ELSE AMBridge.TVForRemoteGFHReferent
[[world, WorldVM.CurrentIncarnation[world], gf]];
id _ NewBreak[tv, gf, pc];
};
put.PutF["Break at (gf: %bB", IO.card[gf]];
put.PutF[", pc: %bB", IO.card[pc]];
msg _ BackStop.Call[inner];
IF id # NIL
THEN put.PutRope["set.\n"]
ELSE {
IF msg = NIL THEN msg _ "duplicate break";
put.PutRope["NOT set ("];
put.PutRope[msg];
put.PutRope[").\n"]
};
};

localBreakList: LocalBreakList;
LocalBreakList: TYPE = LIST OF LocalBreakEntry;
LocalBreakEntry: TYPE = RECORD [
id: AMEvents.BreakID, world: WorldVM.World, gf,pc: CARDINAL];

NewBreak: ENTRY PROC
[tv: TV, gf,pc: CARDINAL] RETURNS [id: AMEvents.BreakID _ NIL] = TRUSTED {
ENABLE UNWIND => NULL;
world: WorldVM.World _ AMBridge.GetWorld[tv];
FOR list: LocalBreakList _ localBreakList, list.rest UNTIL list = NIL DO
IF pc = list.first.pc AND gf = list.first.gf AND world = list.first.world THEN RETURN;
ENDLOOP;
id _ AMEvents.SetBreak[world, GetCodeBase[world, gf], pc, $OctalCommands];
localBreakList _ CONS[[id: id, world: world, gf: gf, pc: pc], localBreakList];
};

GetCodeBase: PROC
[world: WorldVM.World, gfh: CARDINAL] RETURNS [addr: WorldVM.Address] = TRUSTED {
ENABLE UNWIND => NULL;
addr _ WorldVM.Long[world, gfh] + 1;
addr _ WorldVM.LongRead[world, addr]; -- code base
LOOPHOLE[addr, PrincOps.FrameCodeBase].out _ FALSE; -- stupid code traps!
};

FindBreak: ENTRY PROC
[tv: TV, gf,pc: CARDINAL, delete: BOOL _ FALSE]
RETURNS [id: AMEvents.BreakID _ NIL] = TRUSTED {
ENABLE UNWIND => NULL;
lag: LocalBreakList _ NIL;
world: WorldVM.World _ AMBridge.GetWorld[tv];
FOR list: LocalBreakList _ localBreakList, list.rest UNTIL list = NIL DO
IF pc = list.first.pc AND gf = list.first.gf AND world = list.first.world THEN {
id _ list.first.id;
IF delete THEN {
IF lag = NIL THEN localBreakList _ list.rest ELSE lag.rest _ list.rest;
AMEvents.ClearBreak[id];
};
RETURN;
};
lag _ list;
ENDLOOP;
};

ClearOctalBreak: PUBLIC PROC [gf,pc: CARDINAL] = TRUSTED {
world: WorldVM.World _ GetDefaultWorld[];
put: STREAM _ GetSTREAM[];
id: AMEvents.BreakID _ NIL;
msg: ROPE _ NIL;
inner: PROC = TRUSTED {
tv: TV _ 
IF world = WorldVM.LocalWorld[]
THEN AMBridge.TVForGFHReferent[LOOPHOLE[gf]]
ELSE AMBridge.TVForRemoteGFHReferent
[[world, WorldVM.CurrentIncarnation[world], gf]];
id _ FindBreak[tv, gf, pc, TRUE]
};
put.PutF["Break at (gf: %bB", IO.card[gf]];
put.PutF[", pc: %bB", IO.card[pc]];
msg _ BackStop.Call[inner];
IF id # NIL
THEN {
put.PutRope["cleared.\n"]
}
ELSE {
IF msg = NIL THEN msg _ "not found";
put.PutRope["NOT cleared ("];
put.PutRope[msg];
put.PutRope[").\n"]
};
};

ListOctalBreaks: PUBLIC ENTRY PROC = TRUSTED {
ENABLE UNWIND => NULL;
put: STREAM _ GetSTREAM[];
IF localBreakList = NIL THEN {
put.PutRope["No current octal breaks.\n"];
RETURN};
put.PutRope["Current octal breaks:\n"];
FOR list: LocalBreakList _ localBreakList, list.rest UNTIL list = NIL DO
put.PutF["Break at (gf: %bB", IO.card[list.first.gf]];
put.PutF[", pc: %bB", IO.card[list.first.pc]];
ENDLOOP;
};

PrintLocalFrame: PROC [lf: CARDINAL] = TRUSTED {
put: STREAM _ GetSTREAM[];
tv: TV = TrustLocalFrame[lf];
oct: CARDINAL _ 0;
PrintTV.Print[tv: tv, put: put, verbose: TRUE]; 
};

PrintGlobalFrame: PROC [gf: CARDINAL] = TRUSTED {
put: STREAM _ GetSTREAM[];
tv: TV = TrustGlobalFrame[gf];
PrintTV.Print[tv: tv, put: put, verbose: TRUE]; 
};

TrustLocalFrame: PROC [lf: CARDINAL] RETURNS [tv: TV] = TRUSTED {
world: WorldVM.World _ GetDefaultWorld[];
IF world = WorldVM.LocalWorld[]
THEN tv _ AMBridge.TVForFrame[fh: LOOPHOLE[lf]]
ELSE
tv _ AMBridge.TVForRemoteFrame[[
world: world,
worldIncarnation: WorldVM.CurrentIncarnation[world],
fh: LOOPHOLE[lf]]];
};

TrustGlobalFrame: PROC [gf: CARDINAL] RETURNS [tv: TV] = TRUSTED {
world: WorldVM.World _ GetDefaultWorld[];
IF world = WorldVM.LocalWorld[]
THEN tv _ AMBridge.TVForGFHReferent[gfh: LOOPHOLE[gf]]
ELSE
tv _ AMBridge.TVForRemoteGFHReferent[[
world: world,
worldIncarnation: WorldVM.CurrentIncarnation[world],
gfh: LOOPHOLE[gf]]];
};

TrustLocalFrameHelper: EvalQuote.EvalQuoteProc = TRUSTED {
arg: InterpreterOps.Tree _ InterpreterOps.GetArg[tree, 1];
tv: TV _ InterpreterOps.Eval[arg, head, target];
RETURN [TrustLocalFrame[AMBridge.TVToCardinal[tv]]];
};

TrustGlobalFrameHelper: EvalQuote.EvalQuoteProc = TRUSTED {
arg: InterpreterOps.Tree _ InterpreterOps.GetArg[tree, 1];
tv: TV _ InterpreterOps.Eval[arg, head, target];
RETURN [TrustGlobalFrame[AMBridge.TVToCardinal[tv]]];
};


IsValidAddr: PROC [world: WorldVM.World, addr: WorldVM.Address]
RETURNS [BOOL] = TRUSTED {
[] _ WorldVM.Read[world, addr ! ABORTED => GO TO abort; ANY => GO TO bad];
RETURN [TRUE];
EXITS
bad => RETURN [FALSE];
abort => ERROR ABORTED; 
};  

GetDefaultWorld: PROC RETURNS [WorldVM.World] = TRUSTED {
head: InterpreterOps.EvalHead = NARROW[List.Assoc[$EvalHead, ProcessProps.GetPropList[]]];
RETURN[InterpreterOps.WorldFromHead[head]];
};

GetSTREAM: PROC RETURNS [stream: STREAM] = TRUSTED { 
command: Commander.Handle =
NARROW[List.Assoc[$CommanderHandle, ProcessProps.GetPropList[]]];
IF command # NIL THEN stream _ command.out;
IF stream = NIL THEN ERROR;
};

RegisterCommands: PROC = {
RegisterOne[OctalRead, "&or[ptr,len]\tOctal Read"];
RegisterOne[OctalReadShort, "&ors[ptr,len]\tOctal Read Short"];
RegisterOne[OctalWrite, "&ow[ptr,word,len]\tOctal Write"];
RegisterOne[OctalWriteShort, "&ows[ptr,word,len]\tOctal Write Short"];
RegisterOne[AsciiRead, "&ar[ptr,len]\tAscii Read"];
RegisterOne[AsciiReadShort, "&ars[ptr,len]\tAscii Read Short"];
RegisterOne[OctalReadCode, "&orc[gf,pc,len]\tOctal Read Code"];
RegisterOne[OctalFindCode, "&ofc[gf,pc,...]\tOctal Find Code"];
RegisterOne[SetOctalBreak, "&sob[gf,pc]\tSet Octal Break"];
RegisterOne[ClearOctalBreak, "&clob[gf,pc]\tCLear Octal Break"];
RegisterOne[ListOctalBreaks, "&lob[]\tList Octal Breaks"];
RegisterOne[Help, "&help[pattern]\tDescribe specified SymbolTable entries"];
RegisterOne[FindMatching, "&fm[pattern]\tFind Matching Global Frames"];
RegisterOne[TrustLocalFrame, "&tlf[lf]\tTrust Local Frame"];
RegisterOne[TrustGlobalFrame, "&tgf[gf]\tTrust Global Frame"];
RegisterOne[PrintLocalFrame, "&plf[lf]\tPrint Local Frame"];
RegisterOne[PrintGlobalFrame, "&pgf[gf]\tPrint Global Frame"];
EvalQuote.Register["&help", HelpHelper, NIL]; -- to allow an unquoted arg
EvalQuote.Register["&fm", FindMatchingHelper, NIL]; -- to allow an unquoted arg
EvalQuote.Register["&tlf", TrustLocalFrameHelper, NIL]; -- to remove a layer of TV
EvalQuote.Register["&tgf", TrustGlobalFrameHelper, NIL]; -- to remove a layer of TV 
};

RegisterOne: PROC [proc: PROC ANY RETURNS ANY _ NIL, help: ROPE _ NIL] = TRUSTED {
InterpreterOps.RegisterTV[
name: help.Flatten[0, help.SkipTo[0, "["]],
tv: AMBridge.TVForProc[proc],
help: help,
symTab: InterpreterPrivate.GetGlobalSymTab[]];
};

RegisterCommands[ ! ANY => CONTINUE];

END.



OctalCommands.mesa: wizards debugging aids
Russ Atkinson, February 9, 1984 10:53:09 pm PST
Paul Rovner, October 4, 1983 2:17 pm
enumerate the global symtab and the local symtab (if one exists)
[name: ROPE, help: ROPE, tv: TV, data: REF] RETURNS [stop: BOOL]
hack to lengthen the pointer
special hack for the short octal read
hack to lengthen the pointer
special hack for the short octal read
[head: InterpreterOps.EvalHead, tree: InterpreterOps.Tree, target: Type _ nullType, data: REF _ NIL] RETURNS [return: TV]
[head: InterpreterOps.EvalHead, tree: InterpreterOps.Tree, target: Type _ nullType, data: REF _ NIL] RETURNS [return: TV]
... adds a new break to the local list of octal breaks.  It will get a private error out of AMEventsImpl if FrameBreak can't handle setting the break, including the case where there are duplicate breaks.  This means that the caller has to be able to handle ANY error (sigh).
... gets the code base for the octal gfh, clearing out the code trap bit to be safe.
This procedure just runs around trying to find the given break.  If one is found, it removes it if delete is TRUE, and calls AMEvents.ClearBreak to clear the succker.  Since AMEvents can barf at this request, we have to be able to handle this problem. 
[head: InterpreterOps.EvalHead, tree: InterpreterOps.Tree, target: Type _ nullType, data: REF _ NIL] RETURNS [return: TV]
[head: InterpreterOps.EvalHead, tree: InterpreterOps.Tree, target: Type _ nullType, data: REF _ NIL] RETURNS [return: TV]
OctalOut: PROC [msg: ROPE, x: INT _ 0, stream: STREAM] = {
pos: INT _ 0;
lim: INT _ msg.Size[];
WHILE pos < lim DO
c: CHAR _ msg.Fetch[pos];
pos _ pos + 1;
IF c = '% THEN stream.Put[IO.int[x]] ELSE stream.Put[IO.char[c]];
ENDLOOP;
};
returns TRUE iff the page map has an entry for the address
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