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{
Copyright (c) 2020 by Nikolay Nikolov
Convert z80ins.dat to a set of .inc files for usage with
the Free pascal compiler
See the file COPYING.FPC, included in this distribution,
for details about the copyright.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
**********************************************************************}
program mkz80ins;
{$mode objfpc}{$H+}
uses
SysUtils;
const
Version = '1.0.0';
HeaderStr = '{ don''t edit, this file is generated from z80ins.dat; to regenerate, run ''make insdat'' in the compiler directory }';
max_operands = 2;
ParamTypes: array [0..40,0..1] of string = (
('void', 'OT_NONE'),
('r', 'OT_REG8'),
('r''', 'OT_REG8'),
('b', 'OT_IMM3'),
('n', 'OT_IMM8'),
('p', 'OT_IMM_RST'),
('e', 'OT_RELJMP8'),
('nn', 'OT_IMM16'),
('0', 'OT_IMM_VAL0'),
('1', 'OT_IMM_VAL1'),
('2', 'OT_IMM_VAL2'),
('cc', 'OT_COND'),
('C', 'OT_COND_C'),
('NC', 'OT_COND_NC'),
('Z', 'OT_COND_Z'),
('NZ', 'OT_COND_NZ'),
('dd', 'OT_REG16_BC_DE_HL_SP'),
('qq', 'OT_REG16_BC_DE_HL_AF'),
('pp', 'OT_REG16_BC_DE_IX_SP'),
('rr', 'OT_REG16_BC_DE_IY_SP'),
('A', 'OT_REG8_A'),
('I', 'OT_REG8_I'),
('R', 'OT_REG8_R'),
('IX', 'OT_REG16_IX'),
('IY', 'OT_REG16_IY'),
('SP', 'OT_REG16_SP'),
('DE', 'OT_REG16_DE'),
('HL', 'OT_REG16_HL'),
('AF', 'OT_REG16_AF'),
('AF''', 'OT_REG16_AF_'),
('(C)', 'OT_REG8_C_PORT'),
('(n)', 'OT_IMM_PORT'),
('(nn)', 'OT_REF_ADDR16'),
('(BC)', 'OT_REF_BC'),
('(DE)', 'OT_REF_DE'),
('(HL)', 'OT_REF_HL'),
('(SP)', 'OT_REF_SP'),
('(IX)', 'OT_REF_IX'),
('(IY)', 'OT_REF_IY'),
('(IX+d)','OT_REF_IX_d'),
('(IY+d)','OT_REF_IY_d')
);
type
{ TZ80InsDatOutputFiles }
TZ80InsDatOutputFiles = class
public
OpFile: TextFile;
NOpFile: TextFile;
StdOpNames: TextFile;
InsTabFile: TextFile;
constructor Create;
destructor Destroy;override;
end;
{ ***************************************************************************
the routines LeftStr, AnsiStartsStr are copied and reformatted
from StrUtils and thus covered by the copyright of strutils (see below) as compiler utilities cannot
depend on packages
This file is part of the Free Pascal run time library.
Copyright (c) 1999-2005 by the Free Pascal development team
See the file COPYING.FPC, included in this distribution,
for details about the copyright.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*************************************************************************** }
function LeftStr(const AText: AnsiString; const ACount: SizeInt): AnsiString;
begin
Result:=Copy(AText,1,ACount);
end;
function AnsiStartsStr(const ASubText, AText: string): Boolean;
begin
Result := (ASubText = '') or (LeftStr(AText, Length(ASubText)) = ASubText);
end;
{ ***************************************************************************
end of StrUtils code
***************************************************************************}
function PasEncode(const S: string): string;
var
Ch: Char;
InQuotes: Boolean;
begin
Result:='';
InQuotes:=False;
for Ch in S do
if (Ch>=#32) and (Ch<=#126) then
begin
if not InQuotes then
begin
Result:=Result+'''';
InQuotes:=True;
end;
if Ch='''' then
Result:=Result+''''''
else
Result:=Result+Ch;
end
else
begin
if InQuotes then
begin
Result:=Result+'''';
InQuotes:=False;
end;
Result:=Result+'#'+IntToStr(Ord(Ch));
end;
if InQuotes then
Result:=Result+'''';
if Result='' then
Result:='''''';
end;
constructor TZ80InsDatOutputFiles.Create;
begin
AssignFile(OpFile,'z80op.inc');
Rewrite(OpFile);
Writeln(OpFile,HeaderStr);
Writeln(OpFile,'(');
AssignFile(NOpFile,'z80nop.inc');
Rewrite(NOpFile);
Writeln(NOpFile,HeaderStr);
AssignFile(StdOpNames,'z80stdopnames.inc');
Rewrite(StdOpNames);
Writeln(StdOpNames,HeaderStr);
Writeln(StdOpNames,'(');
AssignFile(InsTabFile,'z80tab.inc');
Rewrite(InsTabFile);
Writeln(InsTabFile,HeaderStr);
Writeln(InsTabFile,'(');
end;
destructor TZ80InsDatOutputFiles.Destroy;
begin
CloseFile(OpFile);
CloseFile(NOpFile);
CloseFile(StdOpNames);
CloseFile(InsTabFile);
inherited Destroy;
end;
function FindParamType(const ParamTypeStr: string): Integer;
var
I: Integer;
begin
for I:=Low(ParamTypes) to High(ParamTypes) do
if ParamTypes[I,0]=ParamTypeStr then
exit(I);
raise Exception.Create('Invalid param type: '''+ParamTypeStr+'''');
end;
var
InsDatFile: TextFile;
OutputFiles: TZ80InsDatOutputFiles=nil;
S, op, ParamsStr: string;
FirstIns: Boolean=true;
OpCount: Integer=0;
S_Split, S_Params: TStringArray;
ParamIdx: Integer;
begin
writeln('FPC Z80 Instruction Table Converter Version ',Version);
AssignFile(InsDatFile,'../z80/z80ins.dat');
Reset(InsDatFile);
try
OutputFiles:=TZ80InsDatOutputFiles.Create;
while not EoF(InsDatFile) do
begin
Readln(InsDatFile,S);
S:=Trim(S);
if AnsiStartsStr(';',S) then
continue
else if AnsiStartsStr('[',S) then
begin
op:=Copy(S,2,Length(S)-2);
if not FirstIns then
begin
Writeln(OutputFiles.OpFile,',');
Writeln(OutputFiles.StdOpNames,',');
end;
FirstIns:=False;
Write(OutputFiles.OpFile,'A_'+op);
Write(OutputFiles.StdOpNames,''''+LowerCase(op)+'''');
end
else if S<>'' then
begin
Inc(OpCount);
if OpCount<>1 then
Writeln(OutputFiles.InsTabFile,',');
S_Split:=S.Split(' ',TStringSplitOptions.ExcludeEmpty);
S_Params:=S_Split[0].Split(',',TStringSplitOptions.ExcludeEmpty);
if (Length(S_Params)=1) and (S_Params[0]='void') then
SetLength(S_Params,0);
Writeln(OutputFiles.InsTabFile,' (');
Writeln(OutputFiles.InsTabFile,' opcode : A_',op,';');
Writeln(OutputFiles.InsTabFile,' ops : ',Length(S_Params),';');
Write(OutputFiles.InsTabFile, ' optypes : (');
if Length(S_Params)>max_operands then
raise Exception.Create('Too many operands');
for ParamIdx:=0 to max_operands-1 do
begin
if ParamIdx<>0 then
Write(OutputFiles.InsTabFile,',');
if ParamIdx<=High(S_Params) then
Write(OutputFiles.InsTabFile,ParamTypes[FindParamType(S_Params[ParamIdx]),1])
else
Write(OutputFiles.InsTabFile,'OT_NONE');
end;
Writeln(OutputFiles.InsTabFile, ');');
Writeln(OutputFiles.InsTabFile, ' code : ',PasEncode(S_Split[1]),';');
Writeln(OutputFiles.InsTabFile, ' flags : 0');
Write(OutputFiles.InsTabFile, ' )');
end;
end;
Writeln(OutputFiles.OpFile,');');
Writeln(OutputFiles.StdOpNames,');');
Writeln(OutputFiles.NOpFile,OpCount,';');
Writeln(OutputFiles.InsTabFile);
Writeln(OutputFiles.InsTabFile,');');
finally
FreeAndNil(OutputFiles);
CloseFile(InsDatFile);
end;
end.
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