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code370.c
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code370.c
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/* code370.c */
/*****************************************************************************/
/* AS-Portierung */
/* */
/* Codegenerator 370-Familie */
/* */
/* Historie: 10.12.1996 Grundsteinlegung */
/* 2. 1.1999 ChkPC-Anpassung */
/* 9. 3.2000 'ambiguous else'-Warnungen beseitigt */
/* */
/*****************************************************************************/
/* $Id: code370.c,v 1.6 2010/04/17 13:14:20 alfred Exp $ */
/*****************************************************************************
* $Log: code370.c,v $
* Revision 1.6 2010/04/17 13:14:20 alfred
* - address overlapping strcpy()
*
* Revision 1.5 2007/11/24 22:48:03 alfred
* - some NetBSD changes
*
* Revision 1.4 2005/10/02 10:00:44 alfred
* - ConstLongInt gets default base, correct length check on KCPSM3 registers
*
* Revision 1.3 2005/09/08 17:31:03 alfred
* - add missing include
*
* Revision 1.2 2004/05/29 11:33:00 alfred
* - relocated DecodeIntelPseudo() into own module
*
*****************************************************************************/
#include "stdinc.h"
#include <ctype.h>
#include <string.h>
#include "bpemu.h"
#include "strutil.h"
#include "asmdef.h"
#include "asmsub.h"
#include "asmpars.h"
#include "asmitree.h"
#include "intpseudo.h"
#include "codevars.h"
typedef struct
{
char *Name;
Word Code;
} FixedOrder;
#define ModNone (-1)
#define ModAccA 0
#define MModAccA (1 << ModAccA) /* A */
#define ModAccB 1
#define MModAccB (1 << ModAccB) /* B */
#define ModReg 2
#define MModReg (1 << ModReg) /* Rn */
#define ModPort 3
#define MModPort (1 << ModPort) /* Pn */
#define ModAbs 4
#define MModAbs (1 << ModAbs) /* nnnn */
#define ModBRel 5
#define MModBRel (1 << ModBRel) /* nnnn(B) */
#define ModSPRel 6
#define MModSPRel (1 << ModSPRel) /* nn(SP) */
#define ModIReg 7
#define MModIReg (1 << ModIReg) /* @Rn */
#define ModRegRel 8
#define MModRegRel (1 << ModRegRel) /* nn(Rn) */
#define ModImm 9
#define MModImm (1 << ModImm) /* #nn */
#define ModImmBRel 10
#define MModImmBRel (1 << ModImmBRel) /* #nnnn(B) */
#define ModImmRegRel 11
#define MModImmRegRel (1 << ModImmRegRel) /* #nn(Rm) */
#define FixedOrderCount 12
#define Rel8OrderCount 18
#define ALU1OrderCount 7
#define ALU2OrderCount 5
#define JmpOrderCount 4
#define ABRegOrderCount 14
#define BitOrderCount 5
static CPUVar CPU37010,CPU37020,CPU37030,CPU37040,CPU37050;
static Byte OpSize;
static ShortInt AdrType;
static Byte AdrVals[2];
static Boolean AddrRel;
static FixedOrder *FixedOrders;
static FixedOrder *Rel8Orders;
static FixedOrder *ALU1Orders;
static FixedOrder *ALU2Orders;
static FixedOrder *JmpOrders;
static FixedOrder *ABRegOrders;
static FixedOrder *BitOrders;
/****************************************************************************/
static void InitFixed(char *NName, Word NCode)
BEGIN
if (InstrZ>=FixedOrderCount) exit(255);
FixedOrders[InstrZ].Name=NName;
FixedOrders[InstrZ++].Code=NCode;
END
static void InitRel8(char *NName, Word NCode)
BEGIN
if (InstrZ>=Rel8OrderCount) exit(255);
Rel8Orders[InstrZ].Name=NName;
Rel8Orders[InstrZ++].Code=NCode;
END
static void InitALU1(char *NName, Word NCode)
BEGIN
if (InstrZ>=ALU1OrderCount) exit(255);
ALU1Orders[InstrZ].Name=NName;
ALU1Orders[InstrZ++].Code=NCode;
END
static void InitALU2(char *NName, Word NCode)
BEGIN
if (InstrZ>=ALU2OrderCount) exit(255);
ALU2Orders[InstrZ].Name=NName;
ALU2Orders[InstrZ++].Code=NCode;
END
static void InitJmp(char *NName, Word NCode)
BEGIN
if (InstrZ>=JmpOrderCount) exit(255);
JmpOrders[InstrZ].Name=NName;
JmpOrders[InstrZ++].Code=NCode;
END
static void InitABReg(char *NName, Word NCode)
BEGIN
if (InstrZ>=ABRegOrderCount) exit(255);
ABRegOrders[InstrZ].Name=NName;
ABRegOrders[InstrZ++].Code=NCode;
END
static void InitBit(char *NName, Word NCode)
BEGIN
if (InstrZ>=BitOrderCount) exit(255);
BitOrders[InstrZ].Name=NName;
BitOrders[InstrZ++].Code=NCode;
END
static void InitFields(void)
BEGIN
FixedOrders=(FixedOrder *) malloc(sizeof(FixedOrder)*FixedOrderCount); InstrZ=0;
InitFixed("CLRC" ,0x00b0); InitFixed("DINT" ,0xf000);
InitFixed("EINT" ,0xf00c); InitFixed("EINTH",0xf004);
InitFixed("EINTL",0xf008); InitFixed("IDLE" ,0x00f6);
InitFixed("LDSP" ,0x00fd); InitFixed("NOP" ,0x00ff);
InitFixed("RTI" ,0x00fa); InitFixed("RTS" ,0x00f9);
InitFixed("SETC" ,0x00f8); InitFixed("STSP" ,0x00fe);
Rel8Orders=(FixedOrder *) malloc(sizeof(FixedOrder)*Rel8OrderCount); InstrZ=0;
InitRel8("JMP",0x00); InitRel8("JC" ,0x03); InitRel8("JEQ",0x02);
InitRel8("JG" ,0x0e); InitRel8("JGE",0x0d); InitRel8("JHS",0x0b);
InitRel8("JL" ,0x09); InitRel8("JLE",0x0a); InitRel8("JLO",0x0f);
InitRel8("JN" ,0x01); InitRel8("JNC",0x07); InitRel8("JNE",0x06);
InitRel8("JNV",0x0c); InitRel8("JNZ",0x06); InitRel8("JP" ,0x04);
InitRel8("JPZ",0x05); InitRel8("JV" ,0x08); InitRel8("JZ" ,0x02);
ALU1Orders=(FixedOrder *) malloc(sizeof(FixedOrder)*ALU1OrderCount); InstrZ=0;
InitALU1("ADC", 9); InitALU1("ADD", 8);
InitALU1("DAC",14); InitALU1("DSB",15);
InitALU1("SBB",11); InitALU1("SUB",10); InitALU1("MPY",12);
ALU2Orders=(FixedOrder *) malloc(sizeof(FixedOrder)*ALU2OrderCount); InstrZ=0;
InitALU2("AND" , 3); InitALU2("BTJO", 6);
InitALU2("BTJZ", 7); InitALU2("OR" , 4); InitALU2("XOR", 5);
JmpOrders=(FixedOrder *) malloc(sizeof(FixedOrder)*JmpOrderCount); InstrZ=0;
InitJmp("BR" ,12); InitJmp("CALL" ,14);
InitJmp("JMPL", 9); InitJmp("CALLR",15);
ABRegOrders=(FixedOrder *) malloc(sizeof(FixedOrder)*ABRegOrderCount); InstrZ=0;
InitABReg("CLR" , 5); InitABReg("COMPL",11); InitABReg("DEC" , 2);
InitABReg("INC" , 3); InitABReg("INV" , 4); InitABReg("POP" , 9);
InitABReg("PUSH" , 8); InitABReg("RL" ,14); InitABReg("RLC" ,15);
InitABReg("RR" ,12); InitABReg("RRC" ,13); InitABReg("SWAP" , 7);
InitABReg("XCHB" , 6); InitABReg("DJNZ" ,10);
BitOrders=(FixedOrder *) malloc(sizeof(FixedOrder)*BitOrderCount); InstrZ=0;
InitBit("CMPBIT", 5); InitBit("JBIT0" , 7); InitBit("JBIT1" , 6);
InitBit("SBIT0" , 3); InitBit("SBIT1" , 4);
END
static void DeinitFields(void)
BEGIN
free(FixedOrders);
free(Rel8Orders);
free(ALU1Orders);
free(ALU2Orders);
free(JmpOrders);
free(ABRegOrders);
free(BitOrders);
END
static void ChkAdr(Word Mask)
BEGIN
if ((AdrType!=-1) AND ((Mask & (1 << AdrType))==0))
BEGIN
WrError(1350); AdrType=ModNone; AdrCnt=0;
END
END
static char *HasDisp(char *Asc)
BEGIN
char *p;
int Lev;
if ((*Asc) && (Asc[strlen(Asc)-1]==')'))
BEGIN
p=Asc+strlen(Asc)-2; Lev=0;
while ((p>=Asc) AND (Lev!=-1))
BEGIN
switch (*p)
BEGIN
case '(': Lev--; break;
case ')': Lev++; break;
END
if (Lev!=-1) p--;
END
if (p<Asc)
BEGIN
WrXError(1300,Asc); return Nil;
END
END
else p=Nil;
return p;
END
static void DecodeAdr(char *Asc, Word Mask)
BEGIN
Integer HVal;
char *p;
Boolean OK;
AdrType=ModNone; AdrCnt=0;
if (strcasecmp(Asc,"A")==0)
BEGIN
if ((Mask & MModAccA)!=0) AdrType=ModAccA;
else if ((Mask & MModReg)!=0)
BEGIN
AdrCnt=1; AdrVals[0]=0; AdrType=ModReg;
END
else
BEGIN
AdrCnt=2; AdrVals[0]=0; AdrVals[1]=0; AdrType=ModAbs;
END
ChkAdr(Mask); return;
END
if (strcasecmp(Asc,"B")==0)
BEGIN
if ((Mask & MModAccB)!=0) AdrType=ModAccB;
else if ((Mask & MModReg)!=0)
BEGIN
AdrCnt=1; AdrVals[0]=1; AdrType=ModReg;
END
else
BEGIN
AdrCnt=2; AdrVals[0]=0; AdrVals[1]=1; AdrType=ModAbs;
END
ChkAdr(Mask); return;
END
if (*Asc=='#')
BEGIN
Asc++;
p=HasDisp(Asc);
if (p==Nil)
BEGIN
switch (OpSize)
BEGIN
case 0:
AdrVals[0]=EvalIntExpression(Asc,Int8,&OK);
break;
case 1:
HVal=EvalIntExpression(Asc,Int16,&OK);
AdrVals[0]=Hi(HVal); AdrVals[1]=Lo(HVal);
break;
END
if (OK)
BEGIN
AdrCnt=1+OpSize; AdrType=ModImm;
END
END
else
BEGIN
*p='\0'; FirstPassUnknown=False;
HVal=EvalIntExpression(Asc,Int16,&OK);
if (OK)
BEGIN
*p='(';
if (strcasecmp(p,"(B)")==0)
BEGIN
AdrVals[0]=Hi(HVal); AdrVals[1]=Lo(HVal);
AdrCnt=2; AdrType=ModImmBRel;
END
else
BEGIN
if (FirstPassUnknown) HVal&=127;
if (ChkRange(HVal,-128,127))
BEGIN
AdrVals[0]=HVal & 0xff; AdrCnt=1;
AdrVals[1]=EvalIntExpression(Asc,UInt8,&OK);
if (OK)
BEGIN
AdrCnt=2; AdrType=ModImmRegRel;
END
END
END
END
END
ChkAdr(Mask); return;
END
if (*Asc=='@')
BEGIN
AdrVals[0]=EvalIntExpression(Asc+1,Int8,&OK);
if (OK)
BEGIN
AdrCnt=1; AdrType=ModIReg;
END
ChkAdr(Mask); return;
END
p=HasDisp(Asc);
if (p==Nil)
BEGIN
HVal=EvalIntExpression(Asc,Int16,&OK);
if (OK)
BEGIN
if (((Mask & MModReg)!=0) AND (Hi(HVal)==0))
BEGIN
AdrVals[0]=Lo(HVal); AdrCnt=1; AdrType=ModReg;
END
else if (((Mask & MModPort)!=0) AND (Hi(HVal)==0x10))
BEGIN
AdrVals[0]=Lo(HVal); AdrCnt=1; AdrType=ModPort;
END
else
BEGIN
if (AddrRel) HVal-=EProgCounter()+3;
AdrVals[0]=Hi(HVal); AdrVals[1]=Lo(HVal); AdrCnt=2;
AdrType=ModAbs;
END
END
ChkAdr(Mask); return;
END
else
BEGIN
*(p++)='\0';
FirstPassUnknown=False;
HVal=EvalIntExpression(Asc,Int16,&OK);
if (FirstPassUnknown) HVal&=0x7f;
if (OK)
BEGIN
p[strlen(p)-1]='\0';
if (strcasecmp(p,"B")==0)
BEGIN
if (AddrRel) HVal-=EProgCounter()+3;
AdrVals[0]=Hi(HVal); AdrVals[1]=Lo(HVal); AdrCnt=2;
AdrType=ModBRel;
END
else if (strcasecmp(p,"SP")==0)
BEGIN
if (AddrRel) HVal-=EProgCounter()+3;
if (HVal>127) WrError(1320);
else if (HVal<-128) WrError(1315);
else
BEGIN
AdrVals[0]=HVal & 0xff; AdrCnt=1; AdrType=ModSPRel;
END
END
else
if (HVal>127) WrError(1320);
else if (HVal<-128) WrError(1315);
else
BEGIN
AdrVals[0]=HVal & 0xff;
AdrVals[1]=EvalIntExpression(p,Int8,&OK);
if (OK)
BEGIN
AdrCnt=2; AdrType=ModRegRel;
END
END
END
ChkAdr(Mask); return;
END
END
static Boolean DecodePseudo(void)
BEGIN
Boolean OK;
Byte Bit;
Word Adr;
if (Memo("DBIT"))
BEGIN
if (ArgCnt!=2) WrError(1110);
else
BEGIN
FirstPassUnknown=False;
Bit=EvalIntExpression(ArgStr[1],UInt3,&OK);
if ((OK) AND (NOT FirstPassUnknown))
BEGIN
if ((strcasecmp(ArgStr[2],"A")==0) OR (strcasecmp(ArgStr[2],"B")==0))
BEGIN
Adr=(*ArgStr[2])-'A'; OK=True;
END
else Adr=EvalIntExpression(ArgStr[2],Int16,&OK);
if ((OK) AND (NOT FirstPassUnknown))
BEGIN
PushLocHandle(-1);
EnterIntSymbol(LabPart,(((LongInt)Bit) << 16)+Adr,SegNone,False);
sprintf(ListLine,"=%s:%c",HexString(Adr,0),Bit+'0');
PopLocHandle();
END
END
END
return True;
END
return False;
END
static void PutCode(Word Code)
BEGIN
if (Hi(Code)==0)
BEGIN
CodeLen=1; BAsmCode[0]=Code;
END
else
BEGIN
CodeLen=2; BAsmCode[0]=Hi(Code); BAsmCode[1]=Lo(Code);
END
END
static void MakeCode_370(void)
BEGIN
int z;
Integer AdrInt;
LongInt Bit;
Boolean OK,Rela;
CodeLen=0; DontPrint=False; OpSize=0; AddrRel=False;
/* zu ignorierendes */
if (Memo("")) return;
/* Pseudoanweisungen */
if (DecodePseudo()) return;
if (DecodeIntelPseudo(True)) return;
for (z=0; z<FixedOrderCount; z++)
if (Memo(FixedOrders[z].Name))
BEGIN
if (ArgCnt!=0) WrError(1110);
else PutCode(FixedOrders[z].Code);
return;
END
if (Memo("MOV"))
BEGIN
if (ArgCnt!=2) WrError(1110);
else
BEGIN
DecodeAdr(ArgStr[2],MModAccB+MModReg+MModPort+MModAbs+MModIReg+MModBRel
+MModSPRel+MModRegRel+MModAccA);
switch (AdrType)
BEGIN
case ModAccA:
DecodeAdr(ArgStr[1],MModReg+MModAbs+MModIReg+MModBRel+MModRegRel
+MModSPRel+MModAccB+MModPort+MModImm);
switch (AdrType)
BEGIN
case ModReg:
BAsmCode[0]=0x12; BAsmCode[1]=AdrVals[0]; CodeLen=2;
break;
case ModAbs:
BAsmCode[0]=0x8a; memcpy(BAsmCode+1,AdrVals,2); CodeLen=3;
break;
case ModIReg:
BAsmCode[0]=0x9a; BAsmCode[1]=AdrVals[0]; CodeLen=2;
break;
case ModBRel:
BAsmCode[0]=0xaa; memcpy(BAsmCode+1,AdrVals,2); CodeLen=3;
break;
case ModRegRel:
BAsmCode[0]=0xf4; BAsmCode[1]=0xea;
memcpy(BAsmCode+2,AdrVals,2); CodeLen=4;
break;
case ModSPRel:
BAsmCode[0]=0xf1; BAsmCode[1]=AdrVals[0]; CodeLen=2;
break;
case ModAccB:
BAsmCode[0]=0x62; CodeLen=1;
break;
case ModPort:
BAsmCode[0]=0x80; BAsmCode[1]=AdrVals[0]; CodeLen=2;
break;
case ModImm:
BAsmCode[0]=0x22; BAsmCode[1]=AdrVals[0]; CodeLen=2;
break;
END
break;
case ModAccB:
DecodeAdr(ArgStr[1],MModAccA+MModReg+MModPort+MModImm);
switch (AdrType)
BEGIN
case ModAccA:
BAsmCode[0]=0xc0; CodeLen=1;
break;
case ModReg:
BAsmCode[0]=0x32; BAsmCode[1]=AdrVals[0]; CodeLen=2;
break;
case ModPort:
BAsmCode[0]=0x91; BAsmCode[1]=AdrVals[0]; CodeLen=2;
break;
case ModImm:
BAsmCode[0]=0x52; BAsmCode[1]=AdrVals[0]; CodeLen=2;
break;
END
break;
case ModReg:
BAsmCode[1]=BAsmCode[2]=AdrVals[0];
DecodeAdr(ArgStr[1],MModAccA+MModAccB+MModReg+MModPort+MModImm);
switch (AdrType)
BEGIN
case ModAccA:
BAsmCode[0]=0xd0; CodeLen=2;
break;
case ModAccB:
BAsmCode[0]=0xd1; CodeLen=2;
break;
case ModReg:
BAsmCode[0]=0x42; BAsmCode[1]=AdrVals[0]; CodeLen=3;
break;
case ModPort:
BAsmCode[0]=0xa2; BAsmCode[1]=AdrVals[0]; CodeLen=3;
break;
case ModImm:
BAsmCode[0]=0x72; BAsmCode[1]=AdrVals[0]; CodeLen=3;
break;
END
break;
case ModPort:
BAsmCode[1]=BAsmCode[2]=AdrVals[0];
DecodeAdr(ArgStr[1],MModAccA+MModAccB+MModReg+MModImm);
switch (AdrType)
BEGIN
case ModAccA:
BAsmCode[0]=0x21; CodeLen=2;
break;
case ModAccB:
BAsmCode[0]=0x51; CodeLen=2;
break;
case ModReg:
BAsmCode[0]=0x71; BAsmCode[1]=AdrVals[0]; CodeLen=3;
break;
case ModImm:
BAsmCode[0]=0xf7; BAsmCode[1]=AdrVals[0]; CodeLen=3;
break;
END
break;
case ModAbs:
memcpy(BAsmCode+1,AdrVals,AdrCnt);
DecodeAdr(ArgStr[1],MModAccA);
if (AdrType!=ModNone)
BEGIN
BAsmCode[0]=0x8b; CodeLen=3;
END
break;
case ModIReg:
BAsmCode[1]=AdrVals[0];
DecodeAdr(ArgStr[1],MModAccA);
if (AdrType!=ModNone)
BEGIN
BAsmCode[0]=0x9b; CodeLen=2;
END
break;
case ModBRel:
memcpy(BAsmCode+1,AdrVals,AdrCnt);
DecodeAdr(ArgStr[1],MModAccA);
if (AdrType!=ModNone)
BEGIN
BAsmCode[0]=0xab; CodeLen=3;
END
break;
case ModSPRel:
BAsmCode[1]=AdrVals[0];
DecodeAdr(ArgStr[1],MModAccA);
if (AdrType!=ModNone)
BEGIN
BAsmCode[0]=0xf2; CodeLen=2;
END
break;
case ModRegRel:
memcpy(BAsmCode+2,AdrVals,AdrCnt);
DecodeAdr(ArgStr[1],MModAccA);
if (AdrType!=ModNone)
BEGIN
BAsmCode[0]=0xf4; BAsmCode[1]=0xeb; CodeLen=4;
END
break;
END
END
return;
END
if (Memo("MOVW"))
BEGIN
OpSize=1;
if (ArgCnt!=2) WrError(1110);
else
BEGIN
DecodeAdr(ArgStr[2],MModReg);
if (AdrType!=ModNone)
BEGIN
z=AdrVals[0];
DecodeAdr(ArgStr[1],MModReg+MModImm+MModImmBRel+MModImmRegRel);
switch (AdrType)
BEGIN
case ModReg:
BAsmCode[0]=0x98; BAsmCode[1]=AdrVals[0]; BAsmCode[2]=z;
CodeLen=3;
break;
case ModImm:
BAsmCode[0]=0x88; memcpy(BAsmCode+1,AdrVals,2);
BAsmCode[3]=z; CodeLen=4;
break;
case ModImmBRel:
BAsmCode[0]=0xa8; memcpy(BAsmCode+1,AdrVals,2);
BAsmCode[3]=z; CodeLen=4;
break;
case ModImmRegRel:
BAsmCode[0]=0xf4; BAsmCode[1]=0xe8;
memcpy(BAsmCode+2,AdrVals,2); BAsmCode[4]=z;
CodeLen=5;
break;
END
END
END
return;
END
for (z=0; z<Rel8OrderCount; z++)
if (Memo(Rel8Orders[z].Name))
BEGIN
if (ArgCnt!=1) WrError(1110);
else
BEGIN
AdrInt=EvalIntExpression(ArgStr[1],Int16,&OK)-(EProgCounter()+2);
if (OK)
BEGIN
if ((NOT SymbolQuestionable) AND ((AdrInt>127) OR (AdrInt<-128))) WrError(1370);
else
BEGIN
CodeLen=2;
BAsmCode[0]=Rel8Orders[z].Code; BAsmCode[1]=AdrInt & 0xff;
END
END
END
return;
END
if (Memo("CMP"))
BEGIN
if (ArgCnt!=2) WrError(1110);
else
BEGIN
DecodeAdr(ArgStr[2],MModAccA+MModAccB+MModReg);
switch (AdrType)
BEGIN
case ModAccA:
DecodeAdr(ArgStr[1],MModAbs+MModIReg+MModBRel+MModRegRel+MModSPRel+MModAccB+MModReg+MModImm);
switch (AdrType)
BEGIN
case ModAbs:
BAsmCode[0]=0x8d; memcpy(BAsmCode+1,AdrVals,2); CodeLen=3;
break;
case ModIReg:
BAsmCode[0]=0x9d; BAsmCode[1]=AdrVals[0]; CodeLen=2;
break;
case ModBRel:
BAsmCode[0]=0xad; memcpy(BAsmCode+1,AdrVals,2); CodeLen=3;
break;
case ModRegRel:
BAsmCode[0]=0xf4; BAsmCode[1]=0xed;
memcpy(BAsmCode+2,AdrVals,2); CodeLen=4;
break;
case ModSPRel:
BAsmCode[0]=0xf3; BAsmCode[1]=AdrVals[0]; CodeLen=2;
break;
case ModAccB:
BAsmCode[0]=0x6d; CodeLen=1;
break;
case ModReg:
BAsmCode[0]=0x1d; BAsmCode[1]=AdrVals[0]; CodeLen=2;
break;
case ModImm:
BAsmCode[0]=0x2d; BAsmCode[1]=AdrVals[0]; CodeLen=2;
break;
END
break;
case ModAccB:
DecodeAdr(ArgStr[1],MModReg+MModImm);
switch (AdrType)
BEGIN
case ModReg:
BAsmCode[0]=0x3d; BAsmCode[1]=AdrVals[0]; CodeLen=2;
break;
case ModImm:
BAsmCode[0]=0x5d; BAsmCode[1]=AdrVals[0]; CodeLen=2;
break;
END
break;
case ModReg:
BAsmCode[2]=AdrVals[0];
DecodeAdr(ArgStr[1],MModReg+MModImm);
switch (AdrType)
BEGIN
case ModReg:
BAsmCode[0]=0x4d; BAsmCode[1]=AdrVals[0]; CodeLen=3;
break;
case ModImm:
BAsmCode[0]=0x7d; BAsmCode[1]=AdrVals[0]; CodeLen=3;
break;
END
break;
END
END
return;
END
for (z=0; z<ALU1OrderCount; z++)
if (Memo(ALU1Orders[z].Name))
BEGIN
if (ArgCnt!=2) WrError(1110);
else
BEGIN
DecodeAdr(ArgStr[2],MModAccA+MModAccB+MModReg);
switch (AdrType)
BEGIN
case ModAccA:
DecodeAdr(ArgStr[1],MModAccB+MModReg+MModImm);
switch (AdrType)
BEGIN
case ModAccB:
CodeLen=1; BAsmCode[0]=0x60+ALU1Orders[z].Code;
break;
case ModReg:
CodeLen=2; BAsmCode[0]=0x10+ALU1Orders[z].Code; BAsmCode[1]=AdrVals[0];
break;
case ModImm:
CodeLen=2; BAsmCode[0]=0x20+ALU1Orders[z].Code; BAsmCode[1]=AdrVals[0];
break;
END
break;
case ModAccB:
DecodeAdr(ArgStr[1],MModReg+MModImm);
switch (AdrType)
BEGIN
case ModReg:
CodeLen=2; BAsmCode[0]=0x30+ALU1Orders[z].Code; BAsmCode[1]=AdrVals[0];
break;
case ModImm:
CodeLen=2; BAsmCode[0]=0x50+ALU1Orders[z].Code; BAsmCode[1]=AdrVals[0];
break;
END
break;
case ModReg:
BAsmCode[2]=AdrVals[0];
DecodeAdr(ArgStr[1],MModReg+MModImm);
switch (AdrType)
BEGIN
case ModReg:
CodeLen=3; BAsmCode[0]=0x40+ALU1Orders[z].Code; BAsmCode[1]=AdrVals[0];
break;
case ModImm:
CodeLen=3; BAsmCode[0]=0x70+ALU1Orders[z].Code; BAsmCode[1]=AdrVals[0];
break;
END
break;
END
END
return;
END
for (z=0; z<ALU2OrderCount; z++)
if (Memo(ALU2Orders[z].Name))
BEGIN
Rela=((Memo("BTJO")) OR (Memo("BTJZ")));
if (((Rela) AND (ArgCnt!=3))
OR ((NOT Rela) AND (ArgCnt!=2))) WrError(1110);
else
BEGIN
DecodeAdr(ArgStr[2],MModAccA+MModAccB+MModReg+MModPort);
switch (AdrType)
BEGIN
case ModAccA:
DecodeAdr(ArgStr[1],MModAccB+MModReg+MModImm);
switch (AdrType)
BEGIN
case ModAccB:
BAsmCode[0]=0x60+ALU2Orders[z].Code; CodeLen=1;
break;
case ModReg:
BAsmCode[0]=0x10+ALU2Orders[z].Code; BAsmCode[1]=AdrVals[0]; CodeLen=2;
break;
case ModImm:
BAsmCode[0]=0x20+ALU2Orders[z].Code; BAsmCode[1]=AdrVals[0]; CodeLen=2;
break;
END
break;
case ModAccB:
DecodeAdr(ArgStr[1],MModReg+MModImm);
switch (AdrType)
BEGIN
case ModReg:
BAsmCode[0]=0x30+ALU2Orders[z].Code; BAsmCode[1]=AdrVals[0]; CodeLen=2;
break;
case ModImm:
BAsmCode[0]=0x50+ALU2Orders[z].Code; BAsmCode[1]=AdrVals[0]; CodeLen=2;
break;
END
break;
case ModReg:
BAsmCode[2]=AdrVals[0];
DecodeAdr(ArgStr[1],MModReg+MModImm);
switch (AdrType)
BEGIN
case ModReg:
BAsmCode[0]=0x40+ALU2Orders[z].Code; BAsmCode[1]=AdrVals[0]; CodeLen=3;
break;
case ModImm:
BAsmCode[0]=0x70+ALU2Orders[z].Code; BAsmCode[1]=AdrVals[0]; CodeLen=3;
break;
END
break;
case ModPort:
BAsmCode[1]=AdrVals[0];
DecodeAdr(ArgStr[1],MModAccA+MModAccB+MModImm);
switch (AdrType)
BEGIN
case ModAccA:
BAsmCode[0]=0x80+ALU2Orders[z].Code; CodeLen=2;
break;
case ModAccB:
BAsmCode[0]=0x90+ALU2Orders[z].Code; CodeLen=2;
break;
case ModImm:
BAsmCode[0]=0xa0+ALU2Orders[z].Code; BAsmCode[2]=BAsmCode[1];
BAsmCode[1]=AdrVals[0]; CodeLen=3;
break;
END
break;
END
if ((CodeLen!=0) AND (Rela))
BEGIN
AdrInt=EvalIntExpression(ArgStr[3],UInt16,&OK)-(EProgCounter()+CodeLen+1);
if (NOT OK) CodeLen=0;
else if ((NOT SymbolQuestionable) AND ((AdrInt>127) OR (AdrInt<-128)))
BEGIN
WrError(1370); CodeLen=0;
END
else BAsmCode[CodeLen++]=AdrInt & 0xff;
END
END
return;
END
for (z=0; z<JmpOrderCount; z++)
if (Memo(JmpOrders[z].Name))
BEGIN
AddrRel=(Memo("CALLR") OR Memo("JMPL"));
if (ArgCnt!=1) WrError(1110);
else
BEGIN
DecodeAdr(ArgStr[1],MModAbs+MModIReg+MModBRel+MModRegRel);
switch (AdrType)
BEGIN
case ModAbs:
CodeLen=3; BAsmCode[0]=0x80+JmpOrders[z].Code; memcpy(BAsmCode+1,AdrVals,2);
break;
case ModIReg:
CodeLen=2; BAsmCode[0]=0x90+JmpOrders[z].Code; BAsmCode[1]=AdrVals[0];
break;
case ModBRel:
CodeLen=3; BAsmCode[0]=0xa0+JmpOrders[z].Code; memcpy(BAsmCode+1,AdrVals,2);
break;
case ModRegRel:
CodeLen=4; BAsmCode[0]=0xf4; BAsmCode[1]=0xe0+JmpOrders[z].Code;
memcpy(BAsmCode+2,AdrVals,2);
break;
END
END
return;
END
for (z=0; z<ABRegOrderCount; z++)
if (Memo(ABRegOrders[z].Name))
BEGIN
if (((NOT Memo("DJNZ")) AND (ArgCnt!=1))
OR (( Memo("DJNZ")) AND (ArgCnt!=2))) WrError(1110);
else if (strcasecmp(ArgStr[1],"ST")==0)
BEGIN
if ((Memo("PUSH")) OR (Memo("POP")))
BEGIN
BAsmCode[0]=0xf3+ABRegOrders[z].Code; CodeLen=1;
END
else WrError(1350);
END
else
BEGIN
DecodeAdr(ArgStr[1],MModAccA+MModAccB+MModReg);
switch (AdrType)
BEGIN
case ModAccA:
BAsmCode[0]=0xb0+ABRegOrders[z].Code; CodeLen=1;
break;
case ModAccB:
BAsmCode[0]=0xc0+ABRegOrders[z].Code; CodeLen=1;
break;
case ModReg:
BAsmCode[0]=0xd0+ABRegOrders[z].Code; BAsmCode[CodeLen+1]=AdrVals[0]; CodeLen=2;
break;
END
if ((Memo("DJNZ")) AND (CodeLen!=0))
BEGIN
AdrInt=EvalIntExpression(ArgStr[2],Int16,&OK)-(EProgCounter()+CodeLen+1);
if (NOT OK) CodeLen=0;
else if ((NOT FirstPassUnknown) AND ((AdrInt>127) OR (AdrInt<-128)))
BEGIN
WrError(1370); CodeLen=0;
END
else BAsmCode[CodeLen++]=AdrInt & 0xff;
END
END
return;
END
for (z=0; z<BitOrderCount; z++)
if (Memo(BitOrders[z].Name))
BEGIN
Rela=((Memo("JBIT0")) OR (Memo("JBIT1")));
if (((Rela) AND (ArgCnt!=2))
OR ((NOT Rela) AND (ArgCnt!=1))) WrError(1110);
else
BEGIN
FirstPassUnknown=False;
Bit=EvalIntExpression(ArgStr[1],Int32,&OK);
if (OK)
BEGIN
if (FirstPassUnknown) Bit&=0x000710ff;
BAsmCode[1]=1 << ((Bit >> 16) & 7);
BAsmCode[2]=Lo(Bit);
switch (Hi(Bit))
BEGIN
case 0:
BAsmCode[0]=0x70+BitOrders[z].Code; CodeLen=3;
break;
case 16:
BAsmCode[0]=0xa0+BitOrders[z].Code; CodeLen=3;
break;
default:
WrError(1350);
END
if ((CodeLen!=0) AND (Rela))
BEGIN
AdrInt=EvalIntExpression(ArgStr[2],Int16,&OK)-(EProgCounter()+CodeLen+1);
if (NOT OK) CodeLen=0;
else if ((NOT FirstPassUnknown) AND ((AdrInt>127) OR (AdrInt<-128)))
BEGIN
WrError(1370); CodeLen=0;
END
else BAsmCode[CodeLen++]=AdrInt & 0xff;
END
END
END
return;
END