mirror of
https://github.com/byteworksinc/ORCA-C.git
synced 2024-12-22 07:30:54 +00:00
596 lines
18 KiB
ObjectPascal
596 lines
18 KiB
ObjectPascal
{$optimize 7}
|
|
{---------------------------------------------------------------}
|
|
{ }
|
|
{ ObjOut }
|
|
{ }
|
|
{ This unit has the primitive routines used to actually }
|
|
{ create and write to object modules. A few low-level }
|
|
{ subroutines that need to be in assembly language for speed }
|
|
{ are also included here. }
|
|
{ }
|
|
{ External Subroutines: }
|
|
{ }
|
|
{ CloseObj - close the current obj file }
|
|
{ CloseSeg - close out the current segment }
|
|
{ COut - write a code byte to the object file }
|
|
{ CnOut - write a byte to the constant buffer }
|
|
{ CnOut2 - write a word to the constant buffer }
|
|
{ DestroySuffixes - destroy the .a, .b, etc suffixes }
|
|
{ FindSuffix - find the next available alphabetic suffix }
|
|
{ Header - write a segment header to the output file }
|
|
{ OpenObj - open a new obj file with the indicated file name }
|
|
{ OpenSeg - create a new segment and mark its beginning }
|
|
{ Out - write a byte to the output file }
|
|
{ Out2 - write a word to the output file }
|
|
{ Purge - write any constant bytes to the output buffer }
|
|
{ }
|
|
{---------------------------------------------------------------}
|
|
|
|
unit CCommon;
|
|
|
|
interface
|
|
|
|
{$LibPrefix '0/obj/'}
|
|
|
|
uses CCommon, CGI, CGC;
|
|
|
|
{$segment 'CodeGen'}
|
|
|
|
|
|
procedure CloseObj;
|
|
|
|
{ close the current obj file }
|
|
{ }
|
|
{ Note: Declared as extern in CGI.pas }
|
|
|
|
|
|
procedure COut (b: integer); extern;
|
|
|
|
{ write a code byte to the object file }
|
|
{ }
|
|
{ parameters: }
|
|
{ b - byte to write }
|
|
|
|
|
|
procedure CnOut (i: integer); extern;
|
|
|
|
{ write a byte to the constant buffer }
|
|
{ }
|
|
{ parameters: }
|
|
{ i - byte to write }
|
|
|
|
|
|
procedure CnOut2 (i: integer); extern;
|
|
|
|
{ write a word to the constant buffer }
|
|
{ }
|
|
{ parameters: }
|
|
{ i - word to write }
|
|
|
|
|
|
procedure DestroySuffixes (var name: gsosOutString);
|
|
|
|
{ destroy the .a, .b, etc suffixes }
|
|
{ }
|
|
{ parameters: }
|
|
{ name - root name of file sequence to destroy }
|
|
|
|
|
|
procedure CloseSeg;
|
|
|
|
{ close out the current segment }
|
|
|
|
|
|
procedure FindSuffix (var name: gsosOutString; var ch: char);
|
|
|
|
{ find the next available alphabetic suffix }
|
|
{ }
|
|
{ parameters: }
|
|
{ ch - addr to place suffix character }
|
|
{ name - root name of suffix to find }
|
|
|
|
|
|
procedure Header (name: stringPtr; kind: integer; lengthCode: integer);
|
|
|
|
{ write a segment header to the output file }
|
|
{ }
|
|
{ parameters: }
|
|
{ name - name of the segment }
|
|
{ kind - segment kind }
|
|
{ lengthCode - code bank size code; bank size div $10000 }
|
|
|
|
|
|
procedure OpenSeg;
|
|
|
|
{ create a new segment and mark its beginning }
|
|
|
|
|
|
procedure OpenObj (var name: gsosOutString);
|
|
|
|
{ open a new obj file with the indicated file name }
|
|
{ }
|
|
{ parameters: }
|
|
{ name - object file name }
|
|
|
|
|
|
procedure Out (b: integer); extern;
|
|
|
|
{ write a byte to the output file }
|
|
{ }
|
|
{ parameters: }
|
|
{ b - byte to write }
|
|
|
|
|
|
procedure Out2 (w: integer); extern;
|
|
|
|
{ write a word to the output file }
|
|
{ }
|
|
{ parameters: }
|
|
{ w - word to write }
|
|
|
|
|
|
procedure Purge;
|
|
|
|
{ write any constant bytes to the output buffer }
|
|
|
|
{---------------------------------------------------------------}
|
|
|
|
implementation
|
|
|
|
const
|
|
{NOTE: OutByte and Outword assume }
|
|
{ buffSize is 64K }
|
|
buffSize = 65536; {size of the obj buffer}
|
|
maxCBuffLen = 191; {length of the constant buffer}
|
|
OBJ = $B1; {object file type}
|
|
|
|
type
|
|
closeOSDCB = record {Close DCB}
|
|
pcount: integer;
|
|
refNum: integer;
|
|
end;
|
|
|
|
createOSDCB = record {Create DCB}
|
|
pcount: integer;
|
|
pathName: gsosInStringPtr;
|
|
access: integer;
|
|
fileType: integer;
|
|
auxType: longint;
|
|
storageType: integer;
|
|
dataEOF: longint;
|
|
resourceEOF: longint;
|
|
end;
|
|
|
|
destroyOSDCB = record {Destroy DCB}
|
|
pcount: integer;
|
|
pathName: gsosInStringPtr;
|
|
end;
|
|
|
|
getFileInfoOSDCB = record {GetFileInfo DCB}
|
|
pcount: integer;
|
|
pathName: gsosInStringPtr;
|
|
access: integer;
|
|
fileType: integer;
|
|
auxType: longint;
|
|
storageType: integer;
|
|
createDateTime: timeField;
|
|
modDateTime: timeField;
|
|
optionList: optionListPtr;
|
|
dataEOF: longint;
|
|
blocksUsed: longint;
|
|
resourceEOF: longint;
|
|
resourceBlocks: longint;
|
|
end;
|
|
|
|
openOSDCB = record {Open DCB}
|
|
pcount: integer;
|
|
refNum: integer;
|
|
pathName: gsosInStringPtr;
|
|
requestAccess: integer;
|
|
resourceNumber: integer;
|
|
access: integer;
|
|
fileType: integer;
|
|
auxType: longint;
|
|
storageType: integer;
|
|
createDateTime: timeField;
|
|
modDateTime: timeField;
|
|
optionList: optionListPtr;
|
|
dataEOF: longint;
|
|
blocksUsed: longint;
|
|
resourceEOF: longint;
|
|
resourceBlocks: longint;
|
|
end;
|
|
|
|
readWriteOSDCB = record {WriteGS DCB}
|
|
pcount: integer;
|
|
refNum: integer;
|
|
dataBuffer: ptr;
|
|
requestCount: longint;
|
|
transferCount: longint;
|
|
cachePriority: integer;
|
|
end;
|
|
|
|
{---------------------------------------------------------------}
|
|
|
|
var
|
|
cBuff: array[0..maxCBuffLen] of byte; {constant buffer}
|
|
|
|
objLen: longint; {# bytes used in obj buffer}
|
|
objHandle: handle; {handle of the obj buffer}
|
|
objPtr: ptr; {pointer to the next spot in the obj buffer}
|
|
|
|
segStart: ptr; {points to first byte in current segment}
|
|
spoolRefnum: integer; {reference number for open file}
|
|
|
|
{---------------------------------------------------------------}
|
|
|
|
{memory manager calls}
|
|
{--------------------}
|
|
|
|
procedure BlockMove (sourcPtr, destPtr: ptr; count: longint); tool ($02, $2B);
|
|
|
|
function NewHandle (blockSize: longint; userID, memAttributes: integer;
|
|
memLocation: ptr): handle; tool($02, $09);
|
|
|
|
procedure SetHandleSize (newSize: longint; theHandle: handle); tool ($02, $19);
|
|
|
|
procedure HUnLock (theHandle: handle); tool ($02, $22);
|
|
|
|
procedure HLock (theHandle: handle); tool ($02, $20);
|
|
|
|
{ProDOS calls}
|
|
{------------}
|
|
|
|
procedure CloseGS (var parms: closeOSDCB); prodos ($2014);
|
|
|
|
procedure CreateGS (var parms: createOSDCB); prodos ($2001);
|
|
|
|
procedure DestroyGS (var parms: destroyOSDCB); prodos ($2002);
|
|
|
|
procedure GetFileInfoGS (var parms: getFileInfoOSDCB); prodos ($2006);
|
|
|
|
procedure OpenGS (var parms: openOSDCB); prodos ($2010);
|
|
|
|
procedure WriteGS (var parms: readWriteOSDCB); prodos ($2013);
|
|
|
|
{---------------------------------------------------------------}
|
|
|
|
procedure PurgeObjBuffer;
|
|
|
|
{ Spool any completed segments to the object file }
|
|
|
|
var
|
|
len: longint; {# bytes to write}
|
|
sPtr: ptr; {start of object buffer}
|
|
wrRec: readWriteOSDCB; {WriteGS record}
|
|
|
|
|
|
procedure InitSpoolFile;
|
|
|
|
{ Set up the spool file }
|
|
|
|
var
|
|
dsRec: destroyOSDCB; {DestroyGS record}
|
|
crRec: createOSDCB; {CreateGS record}
|
|
opRec: openOSDCB; {OpenGS record}
|
|
|
|
begin {InitSpoolFile}
|
|
if memoryCompile then {make sure this is a disk-based compile}
|
|
TermError(11);
|
|
dsRec.pCount := 1; {destroy any old file}
|
|
dsRec.pathname := @objFile.theString;
|
|
DestroyGS(dsRec);
|
|
crRec.pCount := 5; {create a new file}
|
|
crRec.pathName := @objFile.theString;
|
|
crRec.access := $C3;
|
|
crRec.fileType := OBJ;
|
|
crRec.auxType := $0000;
|
|
crRec.storageType := 1;
|
|
CreateGS(crRec);
|
|
if ToolError <> 0 then
|
|
TermError(9);
|
|
opRec.pCount := 3; {open the file}
|
|
opRec.pathname := @objFile.theString;
|
|
opRec.requestAccess := 3;
|
|
OpenGS(opRec);
|
|
if ToolError <> 0 then
|
|
TermError(9);
|
|
spoolRefnum := opRec.refnum;
|
|
end; {InitSpoolFile}
|
|
|
|
|
|
begin {PurgeObjBuffer}
|
|
if spoolRefnum = 0 then {make sure the spool file exists}
|
|
InitSpoolFile;
|
|
sPtr := objHandle^; {determine size of completed segments}
|
|
len := ord4(segStart) - ord4(sPtr);
|
|
if len <> 0 then begin
|
|
wrRec.pcount := 4; {write completed segments}
|
|
wrRec.refnum := spoolRefnum;
|
|
wrRec.dataBuffer := pointer(sPtr);
|
|
wrRec.requestCount := len;
|
|
WriteGS(wrRec);
|
|
if ToolError <> 0 then {check for write errors}
|
|
TermError(9);
|
|
objLen := 0; {adjust file pointers}
|
|
BlockMove(segStart, sPtr, ord4(segDisp) & $00FFFF);
|
|
objPtr := sPtr;
|
|
segStart := sPtr;
|
|
end; {if}
|
|
end; {PurgeObjBuffer}
|
|
|
|
|
|
{---------------------------------------------------------------}
|
|
|
|
procedure CloseObj;
|
|
|
|
{ close the current obj file }
|
|
{ }
|
|
{ Note: Declared as extern in CGI.pas }
|
|
|
|
var
|
|
clRec: closeOSDCB; {CloseGS record}
|
|
ffDCBGS: fastFileDCBGS; {dcb for fastfile call}
|
|
i: integer; {loop/index variable}
|
|
|
|
begin {CloseObj}
|
|
if spoolRefnum <> 0 then begin
|
|
PurgeObjBuffer;
|
|
clRec.pCount := 1;
|
|
clRec.refnum := spoolRefnum;
|
|
CloseGS(clRec);
|
|
end {if}
|
|
else if objLen <> 0 then begin
|
|
{resize the buffer}
|
|
HUnLock(objHandle);
|
|
SetHandleSize(objLen, objHandle);
|
|
HLock(objHandle);
|
|
|
|
{save the file}
|
|
ffDCBGS.pCount := 14;
|
|
ffDCBGS.fileHandle := objHandle;
|
|
ffDCBGS.pathName := @objFile.theString;
|
|
ffDCBGS.access := $C3;
|
|
ffDCBGS.fileType := OBJ;
|
|
ffDCBGS.auxType := 0;
|
|
ffDCBGS.storageType := 1;
|
|
for i := 1 to 8 do
|
|
ffDCBGS.createDate[i] := 0;
|
|
ffDCBGS.modDate := ffDCBGS.createDate;
|
|
ffDCBGS.option := nil;
|
|
ffDCBGS.fileLength := objLen;
|
|
if memoryCompile then begin
|
|
ffDCBGS.flags := 0;
|
|
ffDCBGS.action := 4;
|
|
end {if}
|
|
else begin
|
|
ffDCBGS.flags := $C000;
|
|
ffDCBGS.action := 3;
|
|
end; {else}
|
|
FastFileGS(ffDCBGS);
|
|
if ToolError <> 0 then
|
|
TermError(9)
|
|
else begin
|
|
ffDCBGS.PATHName := @objFile.theString;
|
|
ffDCBGS.action := 7;
|
|
FastFileGS(ffDCBGS);
|
|
end; {else}
|
|
end; {if}
|
|
end; {CloseObj}
|
|
|
|
|
|
procedure DestroySuffixes {var name: gsosOutString};
|
|
|
|
{ destroy the .a, .b, etc suffixes }
|
|
{ }
|
|
{ parameters: }
|
|
{ name - root name of file sequence to destroy }
|
|
|
|
var
|
|
done: boolean; {loop termination flag}
|
|
dsDCBGS: destroyOSDCB; {dcb for destroy call}
|
|
giDCBGS: getFileInfoOSDCB; {dcb for Get_File_Info call}
|
|
suffix: char; {current suffix character}
|
|
|
|
fName: gsosInString; {work file name}
|
|
|
|
begin {DestroySuffixes}
|
|
suffix := 'a';
|
|
done := false;
|
|
repeat
|
|
fName := name.theString;
|
|
if fName.size > maxPath-2 then
|
|
fName.size := maxPath-2;
|
|
fName.theString[fName.size+1] := '.';
|
|
fName.theString[fName.size+2] := suffix;
|
|
fName.size := fName.size + 2;
|
|
giDCBGS.pCount := 12;
|
|
giDCBGS.optionList := nil;
|
|
giDCBGS.pathName := @fName;
|
|
GetFileInfoGS(giDCBGS);
|
|
if ToolError = 0 then begin
|
|
if giDCBGS.fileType = OBJ then begin
|
|
dsDCBGS.pCount := 1;
|
|
dsDCBGS.pathName := @fName;
|
|
DestroyGS(dsDCBGS);
|
|
end; {if}
|
|
end {if}
|
|
else
|
|
done := true;
|
|
suffix := succ(suffix);
|
|
until done;
|
|
end; {DestroySuffixes}
|
|
|
|
|
|
procedure CloseSeg;
|
|
|
|
{ close out the current segment }
|
|
{ }
|
|
{ variables: }
|
|
{ objHandle - segment handle }
|
|
{ objLen - used bytes in the segment }
|
|
{ objPtr - set to point to a fresh segment }
|
|
|
|
var
|
|
longPtr: ^longint; {used to set the block count}
|
|
|
|
begin {CloseSeg}
|
|
longPtr := pointer(objPtr); {set the block count}
|
|
longPtr^ := ord4(segDisp) & $00FFFF;
|
|
objLen := objLen + (ord4(segDisp) & $00FFFF); {update the length of the obj file}
|
|
objPtr := pointer(ord4(objHandle^)+objLen); {set objPtr}
|
|
segStart := objPtr;
|
|
if objLen = buffSize then
|
|
PurgeObjBuffer;
|
|
end; {CloseSeg}
|
|
|
|
|
|
procedure FindSuffix {var name: gsosOutString; var ch: char};
|
|
|
|
{ find the next available alphabetic suffix }
|
|
{ }
|
|
{ parameters: }
|
|
{ ch - addr to place suffix character }
|
|
{ name - root name of suffix to find }
|
|
|
|
var
|
|
done: boolean; {loop termination test}
|
|
giDCBGS: getFileInfoOSDCB; {dcb for Get_File_Info call}
|
|
|
|
fName: gsosInString; {work file name}
|
|
|
|
begin {FindSuffix}
|
|
ch := 'a';
|
|
done := false;
|
|
repeat
|
|
fName := name.theString;
|
|
if fName.size > maxPath-2 then
|
|
fName.size := maxPath-2;
|
|
fName.theString[fName.size+1] := '.';
|
|
fName.theString[fName.size+2] := ch;
|
|
fName.size := fName.size + 2;
|
|
giDCBGS.pCount := 12;
|
|
giDCBGS.optionList := nil;
|
|
giDCBGS.pathName := @fName;
|
|
GetFileInfoGS(giDCBGS);
|
|
if ToolError = 0 then
|
|
ch := succ(ch)
|
|
else
|
|
done := true;
|
|
until done;
|
|
end; {FindSuffix}
|
|
|
|
|
|
procedure Header {name: stringPtr; kind: integer; lengthCode: integer};
|
|
|
|
{ write a segment header to the output file }
|
|
{ }
|
|
{ parameters: }
|
|
{ name - name of the segment }
|
|
{ kind - segment kind }
|
|
{ lengthCode - code bank size code; bank size div $10000 }
|
|
|
|
|
|
var
|
|
i: integer; {loop var}
|
|
len: integer; {length of string}
|
|
|
|
begin {Header}
|
|
OpenSeg; {start the new segment}
|
|
blkcnt := 0; segdisp := 0;
|
|
for i := 1 to 12 do {blkcnt,resspc,length}
|
|
Out(0);
|
|
Out(0); {unused}
|
|
Out(0); {lablen}
|
|
Out(4); {numlen}
|
|
Out(2); {version}
|
|
Out2(0); Out2(ord(lengthcode=0)); {cbanksize}
|
|
Out2(kind|segmentKind); {kind}
|
|
for i := 1 to 9 do {unused,org,align,numsex,unused,segnum,entry}
|
|
Out2(0);
|
|
len := length(name^); {dispname,dispdata}
|
|
Out2($30); Out2($3B+len);
|
|
Out2(0); Out2(0); {temporg}
|
|
for i := 1 to 10 do {write the segment name}
|
|
Out(ord(currentSegment[i]));
|
|
currentSegment := defaultSegment; {revert to default segment name}
|
|
Out(len); {segname}
|
|
for i := 1 to len do
|
|
Out(ord(name^[i]));
|
|
end; {Header}
|
|
|
|
|
|
procedure OpenSeg;
|
|
|
|
{ create a new segment and mark its beginning }
|
|
|
|
begin {OpenSeg}
|
|
segDisp := 0;
|
|
segStart := objPtr;
|
|
end; {OpenSeg}
|
|
|
|
|
|
procedure OpenObj {var name: gsosOutString};
|
|
|
|
{ open a new obj file with the indicated file name }
|
|
{ }
|
|
{ parameters: }
|
|
{ name - object file name }
|
|
|
|
var
|
|
dsDCBGS: destroyOSDCB; {dcb for Destroy call}
|
|
giDCBGS: getFileInfoOSDCB; {dcb for Get_File_Info call}
|
|
|
|
begin {OpenObj}
|
|
{the file is not spooled (yet)}
|
|
spoolRefnum := 0;
|
|
|
|
{if there is an existing file, delete it}
|
|
if memoryCompile then begin
|
|
giDCBGS.pCount := 3;
|
|
giDCBGS.pathName := @name.theString;
|
|
GetFileInfoGS(giDCBGS);
|
|
if ToolError = 0 then
|
|
if giDCBGS.fileType = OBJ then begin
|
|
dsDCBGS.pCount := 1;
|
|
dsDCBGS.pathName := @name.theString;
|
|
DestroyGS(dsDCBGS);
|
|
end; {if}
|
|
end; {if}
|
|
|
|
{allocate memory for an initial buffer}
|
|
objHandle := pointer(NewHandle(buffSize, userID, $8000, nil));
|
|
|
|
{set up the buffer variables}
|
|
if ToolError = 0 then begin
|
|
objLen := 0;
|
|
objPtr := objHandle^;
|
|
end {if}
|
|
else
|
|
TermError(5);
|
|
|
|
{save the object file name}
|
|
objFile := name;
|
|
end; {OpenObj}
|
|
|
|
|
|
procedure Purge;
|
|
|
|
{ write any constant bytes to the output buffer }
|
|
|
|
var
|
|
i: integer; {loop variable}
|
|
|
|
begin {Purge}
|
|
if cBuffLen <> 0 then begin
|
|
Out(cBuffLen);
|
|
for i := 0 to cBuffLen-1 do
|
|
COut(cBuff[i]);
|
|
cBuffLen := 0;
|
|
end; {if}
|
|
end; {Purge}
|
|
|
|
end.
|
|
|
|
{$append 'objout.asm'}
|