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-rw-r--r--code8x30x.c559
1 files changed, 559 insertions, 0 deletions
diff --git a/code8x30x.c b/code8x30x.c
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index 0000000..1d15c07
--- /dev/null
+++ b/code8x30x.c
@@ -0,0 +1,559 @@
+/* code8x30x.c */
+/*****************************************************************************/
+/* AS-Portierung */
+/* */
+/* Codegenerator Signetics 8X30x */
+/* */
+/* Historie: 25. 6.1997 Grundsteinlegung */
+/* 3. 1.1999 ChkPC-Anpassung */
+/* */
+/*****************************************************************************/
+
+#include "stdinc.h"
+#include <string.h>
+#include <ctype.h>
+
+#include "nls.h"
+#include "chunks.h"
+#include "bpemu.h"
+#include "strutil.h"
+
+#include "asmdef.h"
+#include "asmsub.h"
+#include "asmpars.h"
+
+/*****************************************************************************/
+
+#define AriOrderCnt 4
+
+typedef struct
+ {
+ char *Name;
+ Word Code;
+ } FixedOrder;
+
+static CPUVar CPU8x300,CPU8x305;
+static FixedOrder *AriOrders;
+
+/*-------------------------------------------------------------------------*/
+
+static int InstrZ;
+
+ static void AddAri(char *NName, Word NCode)
+BEGIN
+ if (InstrZ>=AriOrderCnt) exit(255);
+ AriOrders[InstrZ].Name=NName;
+ AriOrders[InstrZ++].Code=NCode;
+END
+
+ static void InitFields(void)
+BEGIN
+ AriOrders=(FixedOrder *) malloc(sizeof(FixedOrder)*AriOrderCnt); InstrZ=0;
+ AddAri("MOVE",0); AddAri("ADD",1); AddAri("AND",2); AddAri("XOR",3);
+END
+
+ static void DeinitFields(void)
+BEGIN
+ free(AriOrders);
+END
+
+/*-------------------------------------------------------------------------*/
+
+ static Boolean DecodeReg(char *Asc, Word *Erg, ShortInt *ErgLen)
+BEGIN
+ Boolean OK;
+ Word Acc;
+ LongInt Adr;
+ char *z;
+
+ *ErgLen=(-1);
+
+ if (strcasecmp(Asc,"AUX")==0)
+ BEGIN
+ *Erg=0; return True;
+ END
+
+ if (strcasecmp(Asc,"OVF")==0)
+ BEGIN
+ *Erg=8; return True;
+ END
+
+ if (strcasecmp(Asc,"IVL")==0)
+ BEGIN
+ *Erg=7; return True;
+ END
+
+ if (strcasecmp(Asc,"IVR")==0)
+ BEGIN
+ *Erg=15; return True;
+ END
+
+ if ((toupper(*Asc)=='R') AND (strlen(Asc)>1) AND (strlen(Asc)<4))
+ BEGIN
+ Acc=0; OK=True;
+ for (z=Asc+1; *z!='\0'; z++)
+ if (OK)
+ if ((*z<'0') OR (*z>'7')) OK=False;
+ else Acc=(Acc << 3)+(*z-'0');
+ if ((OK) AND (Acc<32))
+ BEGIN
+ if ((MomCPU==CPU8x300) AND (Acc>9) AND (Acc<15))
+ BEGIN
+ WrXError(1445,Asc); return False;
+ END
+ else *Erg=Acc;
+ return True;
+ END
+ END
+
+ if ((strlen(Asc)==4) AND (strncasecmp(Asc+1,"IV",2)==0) AND (Asc[3]>='0') AND (Asc[3]<='7'))
+ if (toupper(*Asc)=='L')
+ BEGIN
+ *Erg=Asc[3]-'0'+0x10; return True;
+ END
+ else if (toupper(*Asc)=='R')
+ BEGIN
+ *Erg=Asc[3]-'0'+0x18; return True;
+ END
+
+ /* IV - Objekte */
+
+ Adr=EvalIntExpression(Asc,UInt24,&OK);
+ if (OK)
+ BEGIN
+ *ErgLen=Adr & 7;
+ *Erg=0x10+((Adr & 0x10) >> 1)+((Adr & 0x700) >> 8);
+ return True;
+ END
+ else return False;
+END
+
+ static char *HasDisp(char *Asc)
+BEGIN
+ int Lev;
+ char *z;
+ int l=strlen(Asc);
+
+ if (Asc[l-1]==')')
+ BEGIN
+ z=Asc+l-2; Lev=0;
+ while ((z>=Asc) AND (Lev!=-1))
+ BEGIN
+ switch (*z)
+ BEGIN
+ case '(': Lev--; break;
+ case ')': Lev++; break;
+ END
+ if (Lev!=-1) z--;
+ END
+ if (Lev!=-1)
+ BEGIN
+ WrError(1300); return Nil;
+ END
+ END
+ else z=Nil;
+
+ return z;
+END
+
+ static Boolean GetLen(char *Asc, Word *Erg)
+BEGIN
+ Boolean OK;
+
+ FirstPassUnknown=False;
+ *Erg=EvalIntExpression(Asc,UInt4,&OK); if (NOT OK) return False;
+ if (FirstPassUnknown) *Erg=8;
+ if (NOT ChkRange(*Erg,1,8)) return False;
+ *Erg&=7; return True;
+END
+
+/*-------------------------------------------------------------------------*/
+
+/* Symbol: 00AA0ORL */
+
+ static Boolean DecodePseudo(void)
+BEGIN
+ LongInt Adr,Ofs,Erg;
+ Word Len;
+ Boolean OK;
+
+ if ((Memo("LIV")) OR (Memo("RIV")))
+ BEGIN
+ Erg=0x10*Ord(Memo("RIV"));
+ if (ArgCnt!=3) WrError(1110);
+ else
+ BEGIN
+ Adr=EvalIntExpression(ArgStr[1],UInt8,&OK);
+ if (OK)
+ BEGIN
+ Ofs=EvalIntExpression(ArgStr[2],UInt3,&OK);
+ if (OK)
+ if (GetLen(ArgStr[3],&Len))
+ BEGIN
+ PushLocHandle(-1);
+ EnterIntSymbol(LabPart,Erg+(Adr << 16)+(Ofs << 8)+(Len & 7),SegNone,False);
+ PopLocHandle();
+ END
+ END
+ END
+ return True;
+ END
+
+ return False;
+END
+
+ static void MakeCode_8x30X(void)
+BEGIN
+ Boolean OK;
+ Word SrcReg,DestReg;
+ ShortInt SrcLen,DestLen;
+ LongInt Op;
+ Word Rot,Adr;
+ int z;
+ char *p;
+ String tmp;
+
+ CodeLen=0; DontPrint=False;
+
+ /* zu ignorierendes */
+
+ if (Memo("")) return;
+
+ /* Pseudoanweisungen */
+
+ if (DecodePseudo()) return;
+
+ /* eingebaute Makros */
+
+ if (Memo("NOP")) /* NOP = MOVE AUX,AUX */
+ BEGIN
+ if (ArgCnt!=0) WrError(1110);
+ else
+ BEGIN
+ WAsmCode[0]=0x0000; CodeLen=1;
+ END
+ return;
+ END
+
+ if (Memo("HALT")) /* HALT = JMP * */
+ BEGIN
+ if (ArgCnt!=0) WrError(1110);
+ else
+ BEGIN
+ WAsmCode[0]=0xe000+(EProgCounter() & 0x1fff); CodeLen=1;
+ END
+ return;
+ END
+
+ if ((Memo("XML")) OR (Memo("XMR")))
+ BEGIN
+ if (ArgCnt!=1) WrError(1110);
+ else if (MomCPU<CPU8x305) WrError(1500);
+ else
+ BEGIN
+ Adr=EvalIntExpression(ArgStr[1],Int8,&OK);
+ if (OK)
+ BEGIN
+ WAsmCode[0]=0xca00+(Ord(Memo("XER")) << 8)+(Adr & 0xff);
+ CodeLen=1;
+ END
+ END
+ return;
+ END
+
+ /* Datentransfer */
+
+ if (Memo("SEL"))
+ BEGIN
+ if (ArgCnt!=1) WrError(1110);
+ else
+ BEGIN
+ Op=EvalIntExpression(ArgStr[1],UInt24,&OK);
+ if (OK)
+ BEGIN
+ WAsmCode[0]=0xc700+((Op & 0x10) << 7)+((Op >> 16) & 0xff);
+ CodeLen=1;
+ END
+ END
+ return;
+ END
+
+ if (Memo("XMIT"))
+ BEGIN
+ if ((ArgCnt!=2) AND (ArgCnt!=3)) WrError(1110);
+ else if (DecodeReg(ArgStr[2],&SrcReg,&SrcLen))
+ if (SrcReg<16)
+ BEGIN
+ if (ArgCnt!=2) WrError(1110);
+ else
+ BEGIN
+ Adr=EvalIntExpression(ArgStr[1],Int8,&OK);
+ if (OK)
+ BEGIN
+ WAsmCode[0]=0xc000+(SrcReg << 8)+(Adr & 0xff);
+ CodeLen=1;
+ END
+ END
+ END
+ else
+ BEGIN
+ if (ArgCnt==2)
+ BEGIN
+ Rot=0xffff; OK=True;
+ END
+ else OK=GetLen(ArgStr[3],&Rot);
+ if (OK)
+ BEGIN
+ if (Rot==0xffff)
+ Rot=(SrcLen==-1) ? 0 : SrcLen;
+ if ((SrcLen!=-1) AND (Rot!=SrcLen)) WrError(1131);
+ else
+ BEGIN
+ Adr=EvalIntExpression(ArgStr[1],Int5,&OK);
+ if (OK)
+ BEGIN
+ WAsmCode[0]=0xc000+(SrcReg << 8)+(Rot << 5)+(Adr & 0x1f);
+ CodeLen=1;
+ END
+ END
+ END
+ END
+ return;
+ END
+
+ /* Arithmetik */
+
+ for (z=0; z<AriOrderCnt; z++)
+ if (Memo(AriOrders[z].Name))
+ BEGIN
+ if ((ArgCnt!=2) AND (ArgCnt!=3)) WrError(1110);
+ else if (DecodeReg(ArgStr[ArgCnt],&DestReg,&DestLen))
+ if (DestReg<16) /* Ziel Register */
+ BEGIN
+ if (ArgCnt==2) /* wenn nur zwei Operanden und Ziel Register... */
+ BEGIN
+ p=HasDisp(ArgStr[1]); /* kann eine Rotation dabei sein */
+ if (p!=Nil)
+ BEGIN /* jau! */
+ strcpy(tmp,p+1); tmp[strlen(tmp)-1]='\0';
+ Rot=EvalIntExpression(tmp,UInt3,&OK);
+ if (OK)
+ BEGIN
+ *p='\0';
+ if (DecodeReg(ArgStr[1],&SrcReg,&SrcLen))
+ if (SrcReg>=16) WrXError(1445,ArgStr[1]);
+ else
+ BEGIN
+ WAsmCode[0]=(AriOrders[z].Code << 13)+(SrcReg << 8)+(Rot << 5)+DestReg;
+ CodeLen=1;
+ END
+ END
+ END
+ else /* noi! */
+ BEGIN
+ if (DecodeReg(ArgStr[1],&SrcReg,&SrcLen))
+ BEGIN
+ WAsmCode[0]=(AriOrders[z].Code << 13)+(SrcReg << 8)+DestReg;
+ if ((SrcReg>=16) AND (SrcLen!=-1)) WAsmCode[0]+=SrcLen << 5;
+ CodeLen=1;
+ END
+ END
+ END
+ else /* 3 Operanden --> Quelle ist I/O */
+ BEGIN
+ if (GetLen(ArgStr[2],&Rot))
+ if (DecodeReg(ArgStr[1],&SrcReg,&SrcLen))
+ if (SrcReg<16) WrXError(1445,ArgStr[1]);
+ else if ((SrcLen!=-1) AND (SrcLen!=Rot)) WrError(1131);
+ else
+ BEGIN
+ WAsmCode[0]=(AriOrders[z].Code << 13)+(SrcReg << 8)+(Rot << 5)+DestReg;
+ CodeLen=1;
+ END
+ END
+ END
+ else /* Ziel I/O */
+ BEGIN
+ if (ArgCnt==2) /* 2 Argumente: Laenge=Laenge Ziel */
+ BEGIN
+ Rot=DestLen; OK=True;
+ END
+ else /* 3 Argumente: Laenge=Laenge Ziel+Angabe */
+ BEGIN
+ OK=GetLen(ArgStr[2],&Rot);
+ if (OK)
+ BEGIN
+ if (FirstPassUnknown) Rot=DestLen;
+ if (DestLen==-1) DestLen=Rot;
+ OK=Rot==DestLen;
+ if (NOT OK) WrError(1131);
+ END
+ END
+ if (OK)
+ if (DecodeReg(ArgStr[1],&SrcReg,&SrcLen))
+ BEGIN
+ if ((Rot==0xffff))
+ Rot=((SrcLen==-1)) ? 0 : SrcLen;
+ if ((DestReg>=16) AND (SrcLen!=-1) AND (SrcLen!=Rot)) WrError(1131);
+ else
+ BEGIN
+ WAsmCode[0]=(AriOrders[z].Code << 13)+(SrcReg << 8)+(Rot << 5)+DestReg;
+ CodeLen=1;
+ END
+ END
+ END
+ return;
+ END
+
+ if (Memo("XEC"))
+ BEGIN
+ if ((ArgCnt!=1) AND (ArgCnt!=2)) WrError(1110);
+ else
+ BEGIN
+ p=HasDisp(ArgStr[1]);
+ if (p==Nil) WrError(1350);
+ else
+ BEGIN
+ strcpy(tmp,p+1); tmp[strlen(tmp)-1]='\0';
+ if (DecodeReg(tmp,&SrcReg,&SrcLen))
+ BEGIN
+ *p='\0';
+ if (SrcReg<16)
+ BEGIN
+ if (ArgCnt!=1) WrError(1110);
+ else
+ BEGIN
+ WAsmCode[0]=EvalIntExpression(ArgStr[1],UInt8,&OK);
+ if (OK)
+ BEGIN
+ WAsmCode[0]+=0x8000+(SrcReg << 8);
+ CodeLen=1;
+ END
+ END
+ END
+ else
+ BEGIN
+ if (ArgCnt==1)
+ BEGIN
+ Rot=0xffff; OK=True;
+ END
+ else OK=GetLen(ArgStr[2],&Rot);
+ if (OK)
+ BEGIN
+ if (Rot==0xffff)
+ Rot=(SrcLen==-1) ? 0 : SrcLen;
+ if ((SrcLen!=-1) AND (Rot!=SrcLen)) WrError(1131);
+ else
+ BEGIN
+ WAsmCode[0]=EvalIntExpression(ArgStr[1],UInt5,&OK);
+ if (OK)
+ BEGIN
+ WAsmCode[0]+=0x8000+(SrcReg << 8)+(Rot << 5);
+ CodeLen=1;
+ END
+ END
+ END
+ END
+ END
+ END
+ END
+ return;
+ END
+
+ /* Spruenge */
+
+ if (Memo("JMP"))
+ BEGIN
+ if (ArgCnt!=1) WrError(1110);
+ else
+ BEGIN
+ WAsmCode[0]=EvalIntExpression(ArgStr[1],UInt13,&OK);
+ if (OK)
+ BEGIN
+ WAsmCode[0]+=0xe000; CodeLen=1;
+ END
+ END
+ return;
+ END
+
+ if (Memo("NZT"))
+ BEGIN
+ if ((ArgCnt!=2) AND (ArgCnt!=3)) WrError(1110);
+ else if (DecodeReg(ArgStr[1],&SrcReg,&SrcLen))
+ if (SrcReg<16)
+ BEGIN
+ if (ArgCnt!=2) WrError(1110);
+ else
+ BEGIN
+ Adr=EvalIntExpression(ArgStr[2],UInt13,&OK);
+ if (OK)
+ if ((NOT SymbolQuestionable) AND ((Adr >> 8)!=(EProgCounter() >> 8))) WrError(1910);
+ else
+ BEGIN
+ WAsmCode[0]=0xa000+(SrcReg << 8)+(Adr & 0xff);
+ CodeLen=1;
+ END
+ END
+ END
+ else
+ BEGIN
+ if (ArgCnt==2)
+ BEGIN
+ Rot=0xffff; OK=True;
+ END
+ else OK=GetLen(ArgStr[2],&Rot);
+ if (OK)
+ BEGIN
+ if (Rot==0xffff)
+ Rot=(SrcLen==-1) ? 0 : SrcLen;
+ if ((SrcLen!=-1) AND (Rot!=SrcLen)) WrError(1131);
+ else
+ BEGIN
+ Adr=EvalIntExpression(ArgStr[ArgCnt],UInt13,&OK);
+ if (OK)
+ if ((NOT SymbolQuestionable) AND ((Adr >> 5)!=(EProgCounter() >> 5))) WrError(1910);
+ else
+ BEGIN
+ WAsmCode[0]=0xa000+(SrcReg << 8)+(Rot << 5)+(Adr & 0x1f);
+ CodeLen=1;
+ END
+ END
+ END
+ END
+ return;
+ END;
+
+ WrXError(1200,OpPart);
+END
+
+ static Boolean IsDef_8x30X(void)
+BEGIN
+ return (Memo("LIV") OR Memo("RIV"));
+END
+
+ static void SwitchFrom_8x30X()
+BEGIN
+ DeinitFields();
+END
+
+ static void SwitchTo_8x30X(void)
+BEGIN
+ TurnWords=False; ConstMode=ConstModeMoto; SetIsOccupied=False;
+
+ PCSymbol="*"; HeaderID=0x3a; NOPCode=0x0000;
+ DivideChars=","; HasAttrs=False;
+
+ ValidSegs=1<<SegCode;
+ Grans[SegCode]=2; ListGrans[SegCode]=2; SegInits[SegCode]=0;
+ SegLimits[SegCode] = 0x1fff;
+
+ MakeCode=MakeCode_8x30X; IsDef=IsDef_8x30X;
+ SwitchFrom=SwitchFrom_8x30X; InitFields();
+END
+
+ void code8x30x_init(void)
+BEGIN
+ CPU8x300=AddCPU("8x300",SwitchTo_8x30X);
+ CPU8x305=AddCPU("8x305",SwitchTo_8x30X);
+END
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 10:07:12 +0000