/* code75k0.c */
/*****************************************************************************/
/* SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only */
/* */
/* AS-Portierung */
/* */
/* Codegenerator NEC 75K0 */
/* */
/*****************************************************************************/
#include "stdinc.h"
#include <string.h>
#include <ctype.h>
#include "nls.h"
#include "strutil.h"
#include "bpemu.h"
#include "asmdef.h"
#include "asmsub.h"
#include "asmpars.h"
#include "asmitree.h"
#include "codepseudo.h"
#include "intpseudo.h"
#include "codevars.h"
#include "errmsg.h"
#include "intformat.h"
#include "code75k0.h"
enum
{
ModNone = -1,
ModReg4 = 0,
ModReg8 = 1,
ModImm = 2 ,
ModInd = 3,
ModAbs = 4
};
#define MModReg4 (1 << ModReg4)
#define MModReg8 (1 << ModReg8)
#define MModImm (1 << ModImm)
#define MModInd (1 << ModInd)
#define MModAbs (1 << ModAbs)
#define MModMinOneIs0 (1 << 7)
enum
{
eCore402 = 0,
eCore004 = 1,
eCore104 = 2
};
typedef struct
{
char Name[6];
Byte CoreType;
} tCPUProps;
typedef struct
{
Byte Part;
ShortInt Mode;
tSymbolFlags PartSymFlags;
} tAdrResult;
static LongInt MBSValue, MBEValue;
static const tCPUProps *pCurrCPUProps;
static ShortInt OpSize;
/*-------------------------------------------------------------------------*/
/* Untermengen von Befehlssatz abpruefen */
static void CheckCore(Byte MinCore)
{
if (pCurrCPUProps->CoreType < MinCore)
{
WrError(ErrNum_InstructionNotSupported);
CodeLen = 0;
}
}
static Boolean CheckACore(Byte MinCore)
{
if (pCurrCPUProps->CoreType < MinCore)
{
WrError(ErrNum_AddrModeNotSupported);
return False;
}
return True;
}
/*-------------------------------------------------------------------------*/
/* Adressausdruck parsen */
static Boolean SetOpSize(ShortInt NewSize)
{
if (OpSize == -1)
OpSize = NewSize;
else if (NewSize != OpSize)
{
WrError(ErrNum_ConfOpSizes);
return False;
}
return True;
}
static void ChkDataPage(Word Adr)
{
switch (MBEValue)
{
case 0:
if ((Adr > 0x7f) && (Adr < 0xf80))
WrError(ErrNum_InAccPage);
break;
case 1:
if (Hi(Adr) != MBSValue)
WrError(ErrNum_InAccPage);
break;
}
}
static void CheckMBE(void)
{
if ((pCurrCPUProps->CoreType == eCore402) && (MBEValue != 0))
{
MBEValue = 0;
WrError(ErrNum_InvCtrlReg);
}
}
static Boolean DecodeAdr(const tStrComp *pArg, Byte Mask, tAdrResult *pResult)
{
static const char RegNames[] = "XAHLDEBC";
const char *p;
int pos
, ArgLen
= strlen(pArg
->str.
p_str);
Boolean OK;
tEvalResult EvalResult;
String s;
pResult->Mode = ModNone;
pResult->PartSymFlags = eSymbolFlag_None;
/* Register ? */
memcpy(s
, pArg
->str.
p_str, 2);
s[2] = '\0';
NLS_UpString(s);
if (p)
{
pos = p - RegNames;
/* 8-Bit-Register ? */
if (ArgLen == 1)
{
pResult->Part = pos ^ 1;
if (SetOpSize(0))
{
if ((pResult->Part > 4) && !CheckACore(eCore004));
else
pResult->Mode = ModReg4;
}
goto chk;
}
/* 16-Bit-Register ? */
if ((ArgLen == 2) && (!Odd(pos)))
{
pResult->Part = pos;
if (SetOpSize(1))
{
if ((pResult->Part > 2) && !CheckACore(eCore004));
else
pResult->Mode = ModReg8;
}
goto chk;
}
/* 16-Bit-Schattenregister ? */
if ((ArgLen == 3) && ((pArg->str.p_str[2] == '\'') || (pArg->str.p_str[2] == '`')) && (!Odd(pos)))
{
pResult->Part = pos + 1;
if (SetOpSize(1))
{
if (CheckACore(eCore104))
pResult->Mode = ModReg8;
}
goto chk;
}
}
/* immediate? */
if (*pArg->str.p_str == '#')
{
if ((OpSize == -1) && (Mask & MModMinOneIs0))
OpSize = 0;
switch (OpSize)
{
case -1:
WrError(ErrNum_UndefOpSizes);
OK = False;
break;
case 0:
pResult->Part = EvalStrIntExpressionOffs(pArg, 1, Int4, &OK) & 15;
break;
case 1:
pResult->Part = EvalStrIntExpressionOffs(pArg, 1, Int8, &OK);
break;
}
if (OK)
pResult->Mode = ModImm;
goto chk;
}
/* indirekt ? */
if (*pArg->str.p_str == '@')
{
tStrComp Arg;
StrCompRefRight(&Arg, pArg, 1);
if (!as_strcasecmp(Arg.str.p_str, "HL")) pResult->Part = 1;
else if (!as_strcasecmp(Arg.str.p_str, "HL+")) pResult->Part = 2;
else if (!as_strcasecmp(Arg.str.p_str, "HL-")) pResult->Part = 3;
else if (!as_strcasecmp(Arg.str.p_str, "DE")) pResult->Part = 4;
else if (!as_strcasecmp(Arg.str.p_str, "DL")) pResult->Part = 5;
else
pResult->Part = 0;
if (pResult->Part != 0)
{
if ((pResult->Part != 1) && !CheckACore(eCore004));
else if (((pResult->Part == 2) || (pResult->Part == 3)) && !CheckACore(eCore104));
else
pResult->Mode = ModInd;
goto chk;
}
}
/* absolut */
pos = EvalStrIntExpressionWithResult(pArg, UInt12, &EvalResult);
if (EvalResult.OK)
{
pResult->Part = Lo(pos);
pResult->Mode = ModAbs;
ChkSpace(SegData, EvalResult.AddrSpaceMask);
if (!mFirstPassUnknown(EvalResult.Flags))
ChkDataPage(pos);
pResult->PartSymFlags = EvalResult.Flags;
}
chk:
if ((pResult->Mode != ModNone) && (!(Mask & (1 << pResult->Mode))))
{
WrError(ErrNum_InvAddrMode);
pResult->Mode = ModNone;
}
return pResult->Mode != ModNone;
}
/* Bit argument coding:
aaaa01bbaaaaaaaa -> aaaaaaaaaaaa.bb
11bbxxxx -> 0ffxh.bb
10bbxxxx -> 0fbxh.bb
00bbxxxx -> @h+x.bb
0100xxxx -> 0fc0h+(x*4).@l
*/
/*!------------------------------------------------------------------------
* \fn DissectBit_75K0(char *pDest, size_t DestSize, LargeWord Inp)
* \brief dissect compact storage of bit (field) into readable form for listing
* \param pDest destination for ASCII representation
* \param DestSize destination buffer size
* \param Inp compact storage
* ------------------------------------------------------------------------ */
static void DissectBit_75K0(char *pDest, size_t DestSize, LargeWord Inp)
{
if (Hi(Inp))
as_snprintf(pDest, DestSize, "%~03.*u%s.%c",
ListRadixBase, (unsigned)(((Inp >> 4) & 0xf00) + Lo(Inp)), GetIntConstIntelSuffix(ListRadixBase),
'0' + (Hi(Inp) & 3));
else switch ((Inp >> 6) & 3)
{
case 0:
as_snprintf(pDest, DestSize, "@%c+%0.*u%s.%c",
HexStartCharacter + ('H' - 'A'),
ListRadixBase, (unsigned)(Inp & 0x0f), GetIntConstIntelSuffix(ListRadixBase),
'0' + ((Inp >> 4) & 3));
break;
case 1:
as_snprintf(pDest, DestSize, "%~03.*u%s.@%c",
ListRadixBase, (unsigned)(0xfc0 + ((Inp & 0x0f) << 2)), GetIntConstIntelSuffix(ListRadixBase),
HexStartCharacter + ('L' - 'A'));
break;
case 2:
as_snprintf(pDest, DestSize, "%~03.*u%s.%c",
ListRadixBase, (unsigned)(0xfb0 + (Inp & 15)), GetIntConstIntelSuffix(ListRadixBase),
'0' + ((Inp >> 4) & 3));
break;
case 3:
as_snprintf(pDest, DestSize, "%~03.*u%s.%c",
ListRadixBase, (unsigned)(0xff0 + (Inp & 15)), GetIntConstIntelSuffix(ListRadixBase),
'0' + ((Inp >> 4) & 3));
break;
}
}
static Boolean DecodeBitAddr(const tStrComp *pArg, Word *Erg, tEvalResult *pEvalResult)
{
char *p;
int Num;
Boolean OK;
Word Adr;
tStrComp AddrPart, BitPart;
p = QuotPos(pArg->str.p_str, '.');
if (!p)
{
*Erg = EvalStrIntExpressionWithResult(pArg, Int16, pEvalResult);
if (Hi(*Erg) != 0)
ChkDataPage(((*Erg >> 4) & 0xf00) + Lo(*Erg));
return pEvalResult->OK;
}
StrCompSplitRef(&AddrPart, &BitPart, pArg, p);
if (!as_strcasecmp(BitPart.str.p_str, "@L"))
{
Adr = EvalStrIntExpressionWithResult(&AddrPart, UInt12, pEvalResult);
if (mFirstPassUnknown(pEvalResult->Flags))
Adr = (Adr & 0xffc) | 0xfc0;
if (pEvalResult->OK)
{
ChkSpace(SegData, pEvalResult->AddrSpaceMask);
if ((Adr & 3) != 0) WrError(ErrNum_NotAligned);
else if (Adr < 0xfc0) WrError(ErrNum_UnderRange);
else if (CheckACore(eCore004))
{
*Erg = 0x40 + ((Adr & 0x3c) >> 2);
return True;
}
}
}
else
{
Num = EvalStrIntExpression(&BitPart, UInt2, &OK);
if (OK)
{
if (!as_strncasecmp(AddrPart.str.p_str, "@H", 2))
{
Adr = EvalStrIntExpressionOffsWithResult(&AddrPart, 2, UInt4, pEvalResult);
if (pEvalResult->OK)
{
if (CheckACore(eCore004))
{
*Erg = (Num << 4) + Adr;
return True;
}
}
}
else
{
Adr = EvalStrIntExpressionWithResult(&AddrPart, UInt12, pEvalResult);
if (mFirstPassUnknown(pEvalResult->Flags))
Adr = (Adr | 0xff0);
if (pEvalResult->OK)
{
ChkSpace(SegData, pEvalResult->AddrSpaceMask);
if ((Adr >= 0xfb0) && (Adr < 0xfc0))
*Erg = 0x80 + (Num << 4) + (Adr & 15);
else if (Adr >= 0xff0)
*Erg = 0xc0 + (Num << 4) + (Adr & 15);
else
*Erg = 0x400 + (((Word)Num) << 8) + Lo(Adr) + (Hi(Adr) << 12);
return True;
}
}
}
}
return False;
}
static Boolean DecodeIntName(char *Asc, Byte *Erg)
{
Word HErg;
Byte LPart;
String Asc_N;
strmaxcpy(Asc_N, Asc, STRINGSIZE);
NLS_UpString(Asc_N);
Asc = Asc_N;
if (pCurrCPUProps->CoreType <= eCore402)
LPart = 0;
else if (pCurrCPUProps->CoreType < eCore004)
LPart = 1;
else if (pCurrCPUProps->CoreType < eCore104)
LPart = 2;
else
LPart = 3;
if (!strcmp(Asc
, "IEBT")) HErg
= 0x000;
else if (!strcmp(Asc
, "IEW")) HErg
= 0x102;
else if (!strcmp(Asc
, "IETPG")) HErg
= 0x203;
else if (!strcmp(Asc
, "IET0")) HErg
= 0x104;
else if (!strcmp(Asc
, "IECSI")) HErg
= 0x005;
else if (!strcmp(Asc
, "IECSIO")) HErg
= 0x205;
else if (!strcmp(Asc
, "IE0")) HErg
= 0x006;
else if (!strcmp(Asc
, "IE2")) HErg
= 0x007;
else if (!strcmp(Asc
, "IE4")) HErg
= 0x120;
else if (!strcmp(Asc
, "IEKS")) HErg
= 0x123;
else if (!strcmp(Asc
, "IET1")) HErg
= 0x224;
else if (!strcmp(Asc
, "IE1")) HErg
= 0x126;
else if (!strcmp(Asc
, "IE3")) HErg
= 0x227;
else
HErg = 0xfff;
if (HErg == 0xfff)
return False;
else if (Hi(HErg) > LPart)
return False;
else
{
*Erg = Lo(HErg);
return True;
}
}
static void PutCode(Word Code)
{
BAsmCode[0] = Lo(Code);
if (Hi(Code) == 0) CodeLen = 1;
else
{
BAsmCode[1] = Hi(Code); CodeLen = 2;
}
}
static Word PageNum(Word Inp)
{
return ((Inp >> 12) & 15);
}
/*-------------------------------------------------------------------------*/
/* Instruction Decoders */
static void DecodeFixed(Word Code)
{
if (ChkArgCnt(0, 0))
PutCode(Code);
}
static void DecodeMOV(Word Code)
{
UNUSED(Code);
if (ChkArgCnt(2, 2))
{
tAdrResult DestResult;
DecodeAdr(&ArgStr[1], MModReg4 | MModReg8 | MModInd | MModAbs, &DestResult);
switch (DestResult.Mode)
{
case ModReg4:
{
tAdrResult SrcResult;
DecodeAdr(&ArgStr[2], MModReg4 | MModInd | MModAbs | MModImm, &SrcResult);
switch (SrcResult.Mode)
{
case ModReg4:
if (DestResult.Part == 0)
{
PutCode(0x7899 + (((Word)SrcResult.Part) << 8)); CheckCore(eCore004);
}
else if (SrcResult.Part == 0)
{
PutCode(0x7099 + (((Word)DestResult.Part) << 8)); CheckCore(eCore004);
}
else WrError(ErrNum_InvAddrMode);
break;
case ModInd:
if (DestResult.Part != 0) WrError(ErrNum_InvAddrMode);
else PutCode(0xe0 + SrcResult.Part);
break;
case ModAbs:
if (DestResult.Part != 0) WrError(ErrNum_InvAddrMode);
else
{
BAsmCode[0] = 0xa3; BAsmCode[1] = SrcResult.Part; CodeLen = 2;
}
break;
case ModImm:
if (DestResult.Part == 0) PutCode(0x70 + SrcResult.Part);
else
{
PutCode(0x089a + (((Word)SrcResult.Part) << 12) + (((Word)DestResult.Part) << 8));
CheckCore(eCore004);
}
break;
}
break;
}
case ModReg8:
{
tAdrResult SrcResult;
DecodeAdr(&ArgStr[2], MModReg8 | MModAbs | MModInd | MModImm, &SrcResult);
switch (SrcResult.Mode)
{
case ModReg8:
if (DestResult.Part == 0)
{
PutCode(0x58aa + (((Word)SrcResult.Part) << 8)); CheckCore(eCore004);
}
else if (SrcResult.Part == 0)
{
PutCode(0x50aa + (((Word)DestResult.Part) << 8)); CheckCore(eCore004);
}
else WrError(ErrNum_InvAddrMode);
break;
case ModAbs:
if (DestResult.Part != 0) WrError(ErrNum_InvAddrMode);
else
{
BAsmCode[0] = 0xa2; BAsmCode[1] = SrcResult.Part; CodeLen = 2;
if (!mFirstPassUnknown(SrcResult.PartSymFlags) && Odd(SrcResult.Part)) WrError(ErrNum_AddrNotAligned);
}
break;
case ModInd:
if ((DestResult.Part != 0) || (SrcResult.Part != 1)) WrError(ErrNum_InvAddrMode);
else
{
PutCode(0x18aa); CheckCore(eCore004);
}
break;
case ModImm:
if (Odd(DestResult.Part)) WrError(ErrNum_InvAddrMode);
else
{
BAsmCode[0] = 0x89 + DestResult.Part; BAsmCode[1] = SrcResult.Part; CodeLen = 2;
}
break;
}
break;
}
case ModInd:
if (DestResult.Part != 1) WrError(ErrNum_InvAddrMode);
else
{
tAdrResult SrcResult;
DecodeAdr(&ArgStr[2], MModReg4 | MModReg8, &SrcResult);
switch (SrcResult.Mode)
{
case ModReg4:
if (SrcResult.Part != 0) WrError(ErrNum_InvAddrMode);
else
{
PutCode(0xe8); CheckCore(eCore004);
}
break;
case ModReg8:
if (SrcResult.Part != 0) WrError(ErrNum_InvAddrMode);
else
{
PutCode(0x10aa); CheckCore(eCore004);
}
break;
}
}
break;
case ModAbs:
{
tAdrResult SrcResult;
DecodeAdr(&ArgStr[2], MModReg4 | MModReg8, &SrcResult);
switch (SrcResult.Mode)
{
case ModReg4:
if (SrcResult.Part != 0) WrError(ErrNum_InvAddrMode);
else
{
BAsmCode[0] = 0x93; BAsmCode[1] = DestResult.Part; CodeLen = 2;
}
break;
case ModReg8:
if (SrcResult.Part != 0) WrError(ErrNum_InvAddrMode);
else
{
BAsmCode[0] = 0x92; BAsmCode[1] = DestResult.Part; CodeLen = 2;
if (!mFirstPassUnknown(SrcResult.PartSymFlags) && Odd(DestResult.Part)) WrError(ErrNum_AddrNotAligned);
}
break;
}
break;
}
}
}
}
static void DecodeXCH(Word Code)
{
UNUSED(Code);
if (ChkArgCnt(2, 2))
{
tAdrResult DestResult;
DecodeAdr(&ArgStr[1], MModReg4 | MModReg8 | MModAbs | MModInd, &DestResult);
switch (DestResult.Mode)
{
case ModReg4:
{
tAdrResult SrcResult;
DecodeAdr(&ArgStr[2], MModReg4 | MModAbs | MModInd, &SrcResult);
switch (SrcResult.Mode)
{
case ModReg4:
if (DestResult.Part == 0) PutCode(0xd8 + SrcResult.Part);
else if (SrcResult.Part == 0) PutCode(0xd8 + DestResult.Part);
else WrError(ErrNum_InvAddrMode);
break;
case ModAbs:
if (DestResult.Part != 0) WrError(ErrNum_InvAddrMode);
else
{
BAsmCode[0] = 0xb3; BAsmCode[1] = SrcResult.Part; CodeLen = 2;
}
break;
case ModInd:
if (DestResult.Part != 0) WrError(ErrNum_InvAddrMode);
else PutCode(0xe8 + SrcResult.Part);
break;
}
break;
}
case ModReg8:
{
tAdrResult SrcResult;
DecodeAdr(&ArgStr[2], MModReg8 | MModAbs | MModInd, &SrcResult);
switch (SrcResult.Mode)
{
case ModReg8:
if (DestResult.Part == 0)
{
PutCode(0x40aa + (((Word)SrcResult.Part) << 8)); CheckCore(eCore004);
}
else if (SrcResult.Part == 0)
{
PutCode(0x40aa + (((Word)DestResult.Part) << 8)); CheckCore(eCore004);
}
else WrError(ErrNum_InvAddrMode);
break;
case ModAbs:
if (DestResult.Part != 0) WrError(ErrNum_InvAddrMode);
else
{
BAsmCode[0] = 0xb2; BAsmCode[1] = SrcResult.Part; CodeLen = 2;
if (mFirstPassUnknown(SrcResult.PartSymFlags) && Odd(SrcResult.Part)) WrError(ErrNum_AddrNotAligned);
}
break;
case ModInd:
if ((SrcResult.Part != 1) || (DestResult.Part != 0)) WrError(ErrNum_InvAddrMode);
else
{
PutCode(0x11aa); CheckCore(eCore004);
}
break;
}
break;
}
case ModAbs:
{
tAdrResult SrcResult;
DecodeAdr(&ArgStr[2], MModReg4 | MModReg8, &SrcResult);
switch (SrcResult.Mode)
{
case ModReg4:
if (SrcResult.Part != 0) WrError(ErrNum_InvAddrMode);
else
{
BAsmCode[0] = 0xb3; BAsmCode[1] = DestResult.Part; CodeLen = 2;
}
break;
case ModReg8:
if (SrcResult.Part != 0) WrError(ErrNum_InvAddrMode);
else
{
BAsmCode[0] = 0xb2; BAsmCode[1] = DestResult.Part; CodeLen = 2;
if (mFirstPassUnknown(SrcResult.PartSymFlags) && Odd(DestResult.Part)) WrError(ErrNum_AddrNotAligned);
}
break;
}
break;
}
case ModInd:
{
tAdrResult SrcResult;
DecodeAdr(&ArgStr[2], MModReg4 | MModReg8, &SrcResult);
switch (SrcResult.Mode)
{
case ModReg4:
if (SrcResult.Part != 0) WrError(ErrNum_InvAddrMode);
else PutCode(0xe8 + DestResult.Part);
break;
case ModReg8:
if ((SrcResult.Part != 0) || (DestResult.Part != 1)) WrError(ErrNum_InvAddrMode);
else
{
PutCode(0x11aa);
CheckCore(eCore004);
}
break;
}
break;
}
}
}
}
static void DecodeMOVT(Word Code)
{
UNUSED(Code);
if (!ChkArgCnt(2, 2));
else if (as_strcasecmp(ArgStr[1].str.p_str, "XA")) WrError(ErrNum_InvAddrMode);
else if (!as_strcasecmp(ArgStr[2].str.p_str, "@PCDE"))
{
PutCode(0xd4);
CheckCore(eCore004);
}
else if (!as_strcasecmp(ArgStr[2].str.p_str, "@PCXA"))
PutCode(0xd0);
else
WrError(ErrNum_InvAddrMode);
}
static void DecodePUSH_POP(Word Code)
{
if (!ChkArgCnt(1, 1));
else if (!as_strcasecmp(ArgStr[1].str.p_str, "BS"))
{
PutCode(0x0699 + (Code << 8)); CheckCore(eCore004);
}
else
{
tAdrResult Result;
DecodeAdr(&ArgStr[1], MModReg8, &Result);
switch (Result.Mode)
{
case ModReg8:
if (Odd(Result.Part)) WrError(ErrNum_InvAddrMode);
else PutCode(0x48 + Code + Result.Part);
break;
}
}
}
static void DecodeIN_OUT(Word IsIN)
{
if (ChkArgCnt(2, 2))
{
const tStrComp *pPortArg = IsIN ? &ArgStr[2] : &ArgStr[1],
*pRegArg = IsIN ? &ArgStr[1] : &ArgStr[2];
if (as_strncasecmp(pPortArg->str.p_str, "PORT", 4)) WrError(ErrNum_InvAddrMode);
else
{
Boolean OK;
BAsmCode[1] = 0xf0 + EvalStrIntExpressionOffs(pPortArg, 4, UInt4, &OK);
if (OK)
{
tAdrResult Result;
DecodeAdr(pRegArg, MModReg8 | MModReg4, &Result);
switch (Result.Mode)
{
case ModReg4:
if (Result.Part != 0) WrError(ErrNum_InvAddrMode);
else
{
BAsmCode[0] = 0x93 + (IsIN << 4); CodeLen = 2;
}
break;
case ModReg8:
if (Result.Part != 0) WrError(ErrNum_InvAddrMode);
else
{
BAsmCode[0] = 0x92 + (IsIN << 4); CodeLen = 2;
CheckCore(eCore004);
}
break;
}
}
}
}
}
static void DecodeADDS(Word Code)
{
UNUSED(Code);
if (ChkArgCnt(2, 2))
{
tAdrResult Result;
DecodeAdr(&ArgStr[1], MModReg4 | MModReg8, &Result);
switch (Result.Mode)
{
case ModReg4:
if (Result.Part != 0) WrError(ErrNum_InvAddrMode);
else
{
DecodeAdr(&ArgStr[2], MModImm | MModInd, &Result);
switch (Result.Mode)
{
case ModImm:
PutCode(0x60 + Result.Part); break;
case ModInd:
if (Result.Part == 1) PutCode(0xd2); else WrError(ErrNum_InvAddrMode);
break;
}
}
break;
case ModReg8:
if (Result.Part == 0)
{
DecodeAdr(&ArgStr[2], MModReg8 | MModImm, &Result);
switch (Result.Mode)
{
case ModReg8:
PutCode(0xc8aa + (((Word)Result.Part) << 8));
CheckCore(eCore104);
break;
case ModImm:
BAsmCode[0] = 0xb9; BAsmCode[1] = Result.Part;
CodeLen = 2;
CheckCore(eCore104);
break;
}
}
else if (as_strcasecmp(ArgStr[2].str.p_str, "XA")) WrError(ErrNum_InvAddrMode);
else
{
PutCode(0xc0aa + (((Word)Result.Part) << 8));
CheckCore(eCore104);
}
break;
}
}
}
static void DecodeAri(Word Code)
{
if (ChkArgCnt(2, 2))
{
tAdrResult Result;
DecodeAdr(&ArgStr[1], MModReg4 | MModReg8, &Result);
switch (Result.Mode)
{
case ModReg4:
if (Result.Part != 0) WrError(ErrNum_InvAddrMode);
else
{
DecodeAdr(&ArgStr[2], MModInd, &Result);
switch (Result.Mode)
{
case ModInd:
if (Result.Part == 1)
{
BAsmCode[0] = 0xa8;
if (Code == 0) BAsmCode[0]++;
if (Code == 2) BAsmCode[0] += 0x10;
CodeLen = 1;
if (Code != 0)
CheckCore(eCore004);
}
else
WrError(ErrNum_InvAddrMode);
break;
}
}
break;
case ModReg8:
if (Result.Part == 0)
{
DecodeAdr(&ArgStr[2], MModReg8, &Result);
switch (Result.Mode)
{
case ModReg8:
PutCode(0xc8aa + ((Code + 1) << 12) + (((Word)Result.Part) << 8));
CheckCore(eCore104);
break;
}
}
else if (as_strcasecmp(ArgStr[2].str.p_str, "XA")) WrError(ErrNum_InvAddrMode);
else
{
PutCode(0xc0aa + ((Code + 1) << 12) + (((Word)Result.Part) << 8));
CheckCore(eCore104);
}
break;
}
}
}
static void DecodeLog(Word Code)
{
if (ChkArgCnt(2, 2))
{
tAdrResult Result;
DecodeAdr(&ArgStr[1], MModReg4 | MModReg8, &Result);
switch (Result.Mode)
{
case ModReg4:
if (Result.Part != 0) WrError(ErrNum_InvAddrMode);
else
{
DecodeAdr(&ArgStr[2], MModImm | MModInd, &Result);
switch (Result.Mode)
{
case ModImm:
PutCode(0x2099 + (((Word)Result.Part & 15) << 8) + ((Code + 1) << 12));
CheckCore(eCore004);
break;
case ModInd:
if (Result.Part == 1)
PutCode(0x80 + ((Code + 1) << 4));
else
WrError(ErrNum_InvAddrMode);
break;
}
}
break;
case ModReg8:
if (Result.Part == 0)
{
DecodeAdr(&ArgStr[2], MModReg8, &Result);
switch (Result.Mode)
{
case ModReg8:
PutCode(0x88aa + (((Word)Result.Part) << 8) + ((Code + 1) << 12));
CheckCore(eCore104);
break;
}
}
else if (as_strcasecmp(ArgStr[2].str.p_str, "XA")) WrError(ErrNum_InvAddrMode);
else
{
PutCode(0x80aa + (((Word)Result.Part) << 8) + ((Code + 1) << 12));
CheckCore(eCore104);
}
break;
}
}
}
static void DecodeLog1(Word Code)
{
Word BVal;
tEvalResult EvalResult;
if (!ChkArgCnt(2, 2));
else if (as_strcasecmp(ArgStr[1].str.p_str, "CY")) WrError(ErrNum_InvAddrMode);
else if (DecodeBitAddr(&ArgStr[2], &BVal, &EvalResult))
{
if (Hi(BVal) != 0) WrError(ErrNum_InvAddrMode);
else
{
BAsmCode[0] = 0xac + ((Code & 1) << 1) + ((Code & 2) << 3);
BAsmCode[1] = BVal;
CodeLen = 2;
}
}
}
static void DecodeINCS(Word Code)
{
UNUSED(Code);
if (ChkArgCnt(1, 1))
{
tAdrResult Result;
DecodeAdr(&ArgStr[1], MModReg4 | MModReg8 | MModInd | MModAbs, &Result);
switch (Result.Mode)
{
case ModReg4:
PutCode(0xc0 + Result.Part);
break;
case ModReg8:
if ((Result.Part < 1) || (Odd(Result.Part))) WrError(ErrNum_InvAddrMode);
else
{
PutCode(0x88 + Result.Part);
CheckCore(eCore104);
}
break;
case ModInd:
if (Result.Part == 1)
{
PutCode(0x0299);
CheckCore(eCore004);
}
else
WrError(ErrNum_InvAddrMode);
break;
case ModAbs:
BAsmCode[0] = 0x82;
BAsmCode[1] = Result.Part;
CodeLen = 2;
break;
}
}
}
static void DecodeDECS(Word Code)
{
UNUSED(Code);
if (ChkArgCnt(1, 1))
{
tAdrResult Result;
DecodeAdr(&ArgStr[1], MModReg4 | MModReg8, &Result);
switch (Result.Mode)
{
case ModReg4:
PutCode(0xc8 + Result.Part);
break;
case ModReg8:
PutCode(0x68aa + (((Word)Result.Part) << 8));
CheckCore(eCore104);
break;
}
}
}
static void DecodeSKE(Word Code)
{
UNUSED(Code);
if (ChkArgCnt(2, 2))
{
tAdrResult DestResult;
DecodeAdr(&ArgStr[1], MModReg4 | MModReg8 | MModInd, &DestResult);
switch (DestResult.Mode)
{
case ModReg4:
{
tAdrResult SrcResult;
DecodeAdr(&ArgStr[2], MModImm | MModInd | MModReg4, &SrcResult);
switch (SrcResult.Mode)
{
case ModReg4:
if (DestResult.Part == 0)
{
PutCode(0x0899 + (((Word)SrcResult.Part) << 8));
CheckCore(eCore004);
}
else if (SrcResult.Part == 0)
{
PutCode(0x0899 + (((Word)DestResult.Part) << 8));
CheckCore(eCore004);
}
else WrError(ErrNum_InvAddrMode);
break;
case ModImm:
BAsmCode[0] = 0x9a;
BAsmCode[1] = (SrcResult.Part << 4) + DestResult.Part;
CodeLen = 2;
break;
case ModInd:
if ((SrcResult.Part == 1) && (DestResult.Part == 0))
PutCode(0x80);
else
WrError(ErrNum_InvAddrMode);
break;
}
break;
}
case ModReg8:
{
tAdrResult SrcResult;
DecodeAdr(&ArgStr[2], MModInd | MModReg8, &SrcResult);
switch (SrcResult.Mode)
{
case ModReg8:
if (DestResult.Part == 0)
{
PutCode(0x48aa + (((Word)SrcResult.Part) << 8));
CheckCore(eCore104);
}
else if (SrcResult.Part == 0)
{
PutCode(0x48aa + (((Word)DestResult.Part) << 8));
CheckCore(eCore104);
}
else WrError(ErrNum_InvAddrMode);
break;
case ModInd:
if (SrcResult.Part == 1)
{
PutCode(0x19aa);
CheckCore(eCore104);
}
else
WrError(ErrNum_InvAddrMode);
break;
}
break;
}
case ModInd:
if (DestResult.Part != 1) WrError(ErrNum_InvAddrMode);
else
{
tAdrResult SrcResult;
DecodeAdr(&ArgStr[2], MModImm | MModReg4 | MModReg8 | MModMinOneIs0, &SrcResult);
switch (SrcResult.Mode)
{
case ModImm:
PutCode(0x6099 + (((Word)SrcResult.Part) << 8));
CheckCore(eCore004);
break;
case ModReg4:
if (SrcResult.Part == 0)
PutCode(0x80);
else
WrError(ErrNum_InvAddrMode);
break;
case ModReg8:
if (SrcResult.Part == 0)
{
PutCode(0x19aa);
CheckCore(eCore004);
}
else
WrError(ErrNum_InvAddrMode);
break;
}
}
break;
}
}
}
static void DecodeAcc(Word Code)
{
if (!ChkArgCnt(1, 1));
else if (as_strcasecmp(ArgStr[1].str.p_str, "A")) WrError(ErrNum_InvAddrMode);
else
PutCode(Code);
}
static void DecodeMOV1(Word Code)
{
UNUSED(Code);
if (ChkArgCnt(2, 2))
{
Boolean OK = True;
Word BVal;
tEvalResult EvalResult;
if (!as_strcasecmp(ArgStr[1].str.p_str, "CY"))
Code = 0xbd;
else if (!as_strcasecmp(ArgStr[2].str.p_str, "CY"))
Code = 0x9b;
else OK = False;
if (!OK) WrError(ErrNum_InvAddrMode);
else if (DecodeBitAddr(&ArgStr[((Code >> 2) & 3) - 1], &BVal, &EvalResult))
{
if (Hi(BVal) != 0) WrError(ErrNum_InvAddrMode);
else
{
BAsmCode[0] = Code;
BAsmCode[1] = BVal;
CodeLen = 2;
CheckCore(eCore104);
}
}
}
}
static void DecodeSET1_CLR1(Word Code)
{
Word BVal;
tEvalResult EvalResult;
if (!ChkArgCnt(1, 1));
else if (!as_strcasecmp(ArgStr[1].str.p_str, "CY"))
PutCode(0xe6 + Code);
else if (DecodeBitAddr(&ArgStr[1], &BVal, &EvalResult))
{
if (Hi(BVal) != 0)
{
BAsmCode[0] = 0x84 + Code + (Hi(BVal & 0x300) << 4);
BAsmCode[1] = Lo(BVal);
CodeLen = 2;
}
else
{
BAsmCode[0] = 0x9c + Code;
BAsmCode[1] = BVal;
CodeLen = 2;
}
}
}
static void DecodeSKT_SKF(Word Code)
{
Word BVal;
tEvalResult EvalResult;
if (!ChkArgCnt(1, 1));
else if (!as_strcasecmp(ArgStr[1].str.p_str, "CY"))
{
if (Code)
PutCode(0xd7);
else
WrError(ErrNum_InvAddrMode);
}
else if (DecodeBitAddr(&ArgStr[1], &BVal, &EvalResult))
{
if (Hi(BVal) != 0)
{
BAsmCode[0] = 0x86 + Code + (Hi(BVal & 0x300) << 4);
BAsmCode[1] = Lo(BVal);
CodeLen = 2;
}
else
{
BAsmCode[0] = 0xbe + Code;
BAsmCode[1] = BVal;
CodeLen = 2;
}
}
}
static void DecodeNOT1(Word Code)
{
UNUSED(Code);
if (!ChkArgCnt(1, 1));
else if (as_strcasecmp(ArgStr[1].str.p_str, "CY")) WrError(ErrNum_InvAddrMode);
else
PutCode(0xd6);
}
static void DecodeSKTCLR(Word Code)
{
Word BVal;
tEvalResult EvalResult;
UNUSED(Code);
if (!ChkArgCnt(1, 1));
else if (DecodeBitAddr(&ArgStr[1], &BVal, &EvalResult))
{
if (Hi(BVal) != 0) WrError(ErrNum_InvAddrMode);
else
{
BAsmCode[0] = 0x9f;
BAsmCode[1] = BVal;
CodeLen = 2;
}
}
}
static void DecodeBR(Word Code)
{
UNUSED(Code);
if (!ChkArgCnt(1, 1));
else if (!as_strcasecmp(ArgStr[1].str.p_str, "PCDE"))
{
PutCode(0x0499);
CheckCore(eCore004);
}
else if (!as_strcasecmp(ArgStr[1].str.p_str, "PCXA"))
{
BAsmCode[0] = 0x99;
BAsmCode[1] = 0x00;
CodeLen = 2;
CheckCore(eCore104);
}
else
{
Integer AdrInt, Dist;
Boolean BrRel, BrLong;
unsigned Offset = 0;
tEvalResult EvalResult;
BrRel = False;
BrLong = False;
if (ArgStr[1].str.p_str[Offset] == '$')
{
BrRel = True;
Offset++;
}
else if (ArgStr[1].str.p_str[Offset] == '!')
{
BrLong = True;
Offset++;
}
AdrInt = EvalStrIntExpressionOffsWithResult(&ArgStr[1], Offset, UInt16, &EvalResult);
if (EvalResult.OK)
{
Dist = AdrInt - EProgCounter();
if ((BrRel) || ((Dist <= 16) && (Dist >= -15) && (Dist != 0)))
{
if (Dist > 0)
{
Dist--;
if ((Dist > 15) && !mSymbolQuestionable(EvalResult.Flags)) WrError(ErrNum_JmpDistTooBig);
else
PutCode(0x00 + Dist);
}
else
{
if ((Dist < -15) && !mSymbolQuestionable(EvalResult.Flags)) WrError(ErrNum_JmpDistTooBig);
else
PutCode(0xf0 + 15 + Dist);
}
}
else if ((!BrLong) && (PageNum(AdrInt) == PageNum(EProgCounter())) && ((EProgCounter() & 0xfff) < 0xffe))
{
BAsmCode[0] = 0x50 + ((AdrInt >> 8) & 15);
BAsmCode[1] = Lo(AdrInt);
CodeLen = 2;
}
else
{
BAsmCode[0] = 0xab;
BAsmCode[1] = Hi(AdrInt & 0x3fff);
BAsmCode[2] = Lo(AdrInt);
CodeLen = 3;
CheckCore(eCore004);
}
ChkSpace(SegCode, EvalResult.AddrSpaceMask);
}
}
}
static void DecodeBRCB(Word Code)
{
UNUSED(Code);
if (ChkArgCnt(1, 1))
{
tEvalResult EvalResult;
Integer AdrInt = EvalStrIntExpressionWithResult(&ArgStr[1], UInt16, &EvalResult);
if (EvalResult.OK)
{
if (!ChkSamePage(AdrInt, EProgCounter(), 12, EvalResult.Flags));
else if ((EProgCounter() & 0xfff) >= 0xffe) WrError(ErrNum_NotFromThisAddress);
else
{
BAsmCode[0] = 0x50 + ((AdrInt >> 8) & 15);
BAsmCode[1] = Lo(AdrInt);
CodeLen = 2;
ChkSpace(SegCode, EvalResult.AddrSpaceMask);
}
}
}
}
static void DecodeCALL(Word Code)
{
UNUSED(Code);
if (ChkArgCnt(1, 1))
{
unsigned BrLong = !!(*ArgStr[1].str.p_str == '!');
tEvalResult EvalResult;
Integer AdrInt = EvalStrIntExpressionOffsWithResult(&ArgStr[1], BrLong, UInt16, &EvalResult);
if (mFirstPassUnknown(EvalResult.Flags)) AdrInt &= 0x7ff;
if (EvalResult.OK)
{
if ((BrLong) || (AdrInt > 0x7ff))
{
BAsmCode[0] = 0xab;
BAsmCode[1] = 0x40 + Hi(AdrInt & 0x3fff);
BAsmCode[2] = Lo(AdrInt);
CodeLen = 3;
CheckCore(eCore004);
}
else
{
BAsmCode[0] = 0x40 + Hi(AdrInt & 0x7ff);
BAsmCode[1] = Lo(AdrInt);
CodeLen = 2;
}
ChkSpace(SegCode, EvalResult.AddrSpaceMask);
}
}
}
static void DecodeCALLF(Word Code)
{
UNUSED(Code);
if (ChkArgCnt(1, 1))
{
tEvalResult EvalResult;
Integer AdrInt = EvalStrIntExpressionOffsWithResult(&ArgStr[1], !!(*ArgStr[1].str.p_str == '!'), UInt11, &EvalResult);
if (EvalResult.OK)
{
BAsmCode[0] = 0x40 + Hi(AdrInt);
BAsmCode[1] = Lo(AdrInt);
CodeLen = 2;
ChkSpace(SegCode, EvalResult.AddrSpaceMask);
}
}
}
static void DecodeGETI(Word Code)
{
UNUSED(Code);
if (ChkArgCnt(1, 1))
{
Boolean OK;
BAsmCode[0] = EvalStrIntExpression(&ArgStr[1], UInt6, &OK);
CodeLen = Ord(OK);
CheckCore(eCore004);
}
}
static void DecodeEI_DI(Word Code)
{
Byte HReg;
if (ArgCnt == 0)
PutCode(0xb29c + Code);
else if (!ChkArgCnt(1, 1));
else if (DecodeIntName(ArgStr[1].str.p_str, &HReg))
PutCode(0x989c + Code + (((Word)HReg) << 8));
else
WrError(ErrNum_InvCtrlReg);
}
static void DecodeSEL(Word Code)
{
Boolean OK;
UNUSED(Code);
BAsmCode[0] = 0x99;
if (!ChkArgCnt(1, 1));
else if (!as_strncasecmp(ArgStr[1].str.p_str, "RB", 2))
{
BAsmCode[1] = 0x20 + EvalStrIntExpressionOffs(&ArgStr[1], 2, UInt2, &OK);
if (OK)
{
CodeLen = 2;
CheckCore(eCore104);
}
}
else if (!as_strncasecmp(ArgStr[1].str.p_str, "MB", 2))
{
BAsmCode[1] = 0x10 + EvalStrIntExpressionOffs(&ArgStr[1], 2, UInt4, &OK);
if (OK)
{
CodeLen = 2;
CheckCore(eCore004);
}
}
else
WrError(ErrNum_InvAddrMode);
}
static void DecodeSFR(Word Code)
{
UNUSED(Code);
CodeEquate(SegData, 0, 0xfff);
}
static void DecodeBIT(Word Code)
{
Word BErg;
UNUSED(Code);
if (ChkArgCnt(1, 1))
{
tEvalResult EvalResult;
if (DecodeBitAddr(&ArgStr[1], &BErg, &EvalResult))
if (!mFirstPassUnknown(EvalResult.Flags))
{
PushLocHandle(-1);
EnterIntSymbol(&LabPart, BErg, SegBData, False);
*ListLine = '=';
DissectBit_75K0(ListLine + 1, STRINGSIZE- 1, BErg);
PopLocHandle();
}
}
}
/*-------------------------------------------------------------------------*/
/* dynamische Codetabellenverwaltung */
static void AddFixed(const char *NewName, Word NewCode)
{
AddInstTable(InstTable, NewName, NewCode, DecodeFixed);
}
static void InitFields(void)
{
InstTable = CreateInstTable(103);
AddInstTable(InstTable, "MOV", 0, DecodeMOV);
AddInstTable(InstTable, "XCH", 0, DecodeXCH);
AddInstTable(InstTable, "MOVT", 0, DecodeMOVT);
AddInstTable(InstTable, "PUSH", 1, DecodePUSH_POP);
AddInstTable(InstTable, "POP", 0, DecodePUSH_POP);
AddInstTable(InstTable, "IN", 1, DecodeIN_OUT);
AddInstTable(InstTable, "OUT", 0, DecodeIN_OUT);
AddInstTable(InstTable, "ADDS", 0, DecodeADDS);
AddInstTable(InstTable, "INCS", 0, DecodeINCS);
AddInstTable(InstTable, "DECS", 0, DecodeDECS);
AddInstTable(InstTable, "SKE", 0, DecodeSKE);
AddInstTable(InstTable, "RORC", 0x98, DecodeAcc);
AddInstTable(InstTable, "NOT", 0x5f99, DecodeAcc);
AddInstTable(InstTable, "MOV1", 0, DecodeMOV1);
AddInstTable(InstTable, "SET1", 1, DecodeSET1_CLR1);
AddInstTable(InstTable, "CLR1", 0, DecodeSET1_CLR1);
AddInstTable(InstTable, "SKT", 1, DecodeSKT_SKF);
AddInstTable(InstTable, "SKF", 0, DecodeSKT_SKF);
AddInstTable(InstTable, "NOT1", 0, DecodeNOT1);
AddInstTable(InstTable, "SKTCLR", 0, DecodeSKTCLR);
AddInstTable(InstTable, "BR", 0, DecodeBR);
AddInstTable(InstTable, "BRCB", 0, DecodeBRCB);
AddInstTable(InstTable, "CALL", 0, DecodeCALL);
AddInstTable(InstTable, "CALLF", 0, DecodeCALLF);
AddInstTable(InstTable, "GETI", 0, DecodeGETI);
AddInstTable(InstTable, "EI", 1, DecodeEI_DI);
AddInstTable(InstTable, "DI", 0, DecodeEI_DI);
AddInstTable(InstTable, "SEL", 0, DecodeSEL);
AddInstTable(InstTable, "SFR", 0, DecodeSFR);
AddInstTable(InstTable, "BIT", 0, DecodeBIT);
AddFixed("RET" , 0x00ee);
AddFixed("RETS", 0x00e0);
AddFixed("RETI", 0x00ef);
AddFixed("HALT", 0xa39d);
AddFixed("STOP", 0xb39d);
AddFixed("NOP" , 0x0060);
InstrZ = 0;
AddInstTable(InstTable, "ADDC", InstrZ++, DecodeAri);
AddInstTable(InstTable, "SUBS", InstrZ++, DecodeAri);
AddInstTable(InstTable, "SUBC", InstrZ++, DecodeAri);
InstrZ = 0;
AddInstTable(InstTable, "AND", InstrZ++, DecodeLog);
AddInstTable(InstTable, "OR" , InstrZ++, DecodeLog);
AddInstTable(InstTable, "XOR", InstrZ++, DecodeLog);
InstrZ = 0;
AddInstTable(InstTable, "AND1", InstrZ++, DecodeLog1);
AddInstTable(InstTable, "OR1" , InstrZ++, DecodeLog1);
AddInstTable(InstTable, "XOR1", InstrZ++, DecodeLog1);
}
static void DeinitFields(void)
{
DestroyInstTable(InstTable);
}
/*-------------------------------------------------------------------------*/
static void MakeCode_75K0(void)
{
CodeLen = 0;
DontPrint = False;
OpSize = -1;
/* zu ignorierendes */
if (Memo(""))
return;
/* Pseudoanweisungen */
if (DecodeIntelPseudo(True))
return;
if (!LookupInstTable(InstTable, OpPart.str.p_str))
WrStrErrorPos(ErrNum_UnknownInstruction, &OpPart);
}
static void InitCode_75K0(void)
{
MBSValue = 0; MBEValue = 0;
}
static Boolean IsDef_75K0(void)
{
return ((Memo("SFR")) || (Memo("BIT")));
}
static void SwitchFrom_75K0(void)
{
DeinitFields();
}
static ASSUMERec ASSUME75s[] =
{
{"MBS", &MBSValue, 0, 0x0f, 0x10, NULL},
{"MBE", &MBEValue, 0, 0x01, 0x01, CheckMBE}
};
#define ASSUME75Count (sizeof(ASSUME75s) / sizeof(*ASSUME75s))
static void SwitchTo_75K0(void *pUser)
{
Boolean Err;
Word ROMEnd;
pCurrCPUProps = (const tCPUProps*)pUser;
TurnWords = False;
SetIntConstMode(eIntConstModeIntel);
PCSymbol = "PC"; HeaderID = 0x7b; NOPCode = 0x60;
DivideChars = ","; HasAttrs = False;
ValidSegs = (1 << SegCode)|(1 << SegData);
Grans[SegCode] = 1; ListGrans[SegCode] = 1; SegInits[SegCode] = 0;
Grans[SegData] = 1; ListGrans[SegData] = 1; SegInits[SegData] = 0;
SegLimits[SegData] = 0xfff;
ROMEnd = ConstLongInt(&MomCPUName[3], &Err, 10);
if (ROMEnd > 2)
ROMEnd %= 10;
SegLimits[SegCode] = (ROMEnd << 10) - 1;
pASSUMERecs = ASSUME75s;
ASSUMERecCnt = ASSUME75Count;
MakeCode = MakeCode_75K0; IsDef = IsDef_75K0;
SwitchFrom = SwitchFrom_75K0; InitFields();
DissectBit = DissectBit_75K0;
}
static const tCPUProps CPUProps[] =
{
{ "75402", eCore402 },
{ "75004", eCore004 },
{ "75006", eCore004 },
{ "75008", eCore004 },
{ "75268", eCore004 },
{ "75304", eCore004 },
{ "75306", eCore004 },
{ "75308", eCore004 },
{ "75312", eCore004 },
{ "75316", eCore004 },
{ "75328", eCore004 },
{ "75104", eCore104 },
{ "75106", eCore104 },
{ "75108", eCore104 },
{ "75112", eCore104 },
{ "75116", eCore104 },
{ "75206", eCore104 },
{ "75208", eCore104 },
{ "75212", eCore104 },
{ "75216", eCore104 },
{ "75512", eCore104 },
{ "75516", eCore104 },
{ "" , 0 }
};
void code75k0_init(void)
{
const tCPUProps *pProps;
for (pProps = CPUProps; pProps->Name[0]; pProps++)
(void)AddCPUUser(pProps->Name, SwitchTo_75K0, (void*)pProps, NULL);
AddInitPassProc(InitCode_75K0);
}