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}
ParseError("Constant value expected\n");
}
#define AddInst(x) (cl->codes[ptr++]=(x),prflag=0)
#define AddInst2(x,y) (cl->codes[ptr++]=(x),cl->codes[ptr++]=(y),prflag=0,peep=ptr)
#define AddInstF(x,y) (cl->codes[ptr++]=(x),prflag=(y))
#define ChangeInst(x) (cl->codes[ptr-1]x,prflag=0)
#define InstFlag(x) (peep<ptr && (prflag&(x)))
#define Inst7bit() (peep<ptr && cl->codes[ptr-1]<0x0080)
#define Inst8bit() (peep<ptr && cl->codes[ptr-1]<0x0100)
#define AbbrevOp(x,y) case x: if(Inst7bit()) ChangeInst(+=0x1000|((y)<<4)); else AddInstF(x,tokent); break
static int parse_instructions(int cla,int ptr,Hash*hash) {
int peep=ptr;
int prflag=0;
Class*cl=classes[cla];
cl->codes=realloc(cl->codes,0x10000*sizeof(Uint16));
if(!cl->codes) fatal("Allocation failed\n");
for(;;) {
nxttok();
if(Tokenf(TF_MACRO)) ParseError("Unexpected macro\n");
if(Tokenf(TF_INT)) {
} else if(Tokenf(TF_NAME)) {
switch(tokenv) {
AbbrevOp(OP_ADD,0x00);
AbbrevOp(OP_SUB,0x08);
AbbrevOp(OP_MUL,0x10);
AbbrevOp(OP_DIV,0x18);
AbbrevOp(OP_MOD,0x20);
AbbrevOp(OP_MUL_C,0x28);
AbbrevOp(OP_DIV_C,0x30);
AbbrevOp(OP_MOD_C,0x38);
AbbrevOp(OP_BAND,0x40);
AbbrevOp(OP_BOR,0x48);
AbbrevOp(OP_BXOR,0x50);
AbbrevOp(OP_LSH,0x58);
AbbrevOp(OP_RSH,0x60);
AbbrevOp(OP_RSH_C,0x68);
AbbrevOp(OP_EQ,0x70);
AbbrevOp(OP_NE,0x78);
AbbrevOp(OP_LT,0x80);
AbbrevOp(OP_GT,0x88);
AbbrevOp(OP_LE,0x90);
AbbrevOp(OP_GE,0x98);
AbbrevOp(OP_LT_C,0xA0);
AbbrevOp(OP_GT_C,0xA8);
AbbrevOp(OP_LE_C,0xB0);
AbbrevOp(OP_GE_C,0xB8);
case OP_DROP:
if(InstFlag(TF_DROP)) ChangeInst(+=0x2000);
else AddInst(OP_DROP);
break;
default:
if(Tokenf(TF_ABNORMAL)) ParseError("Invalid instruction token\n");
AddInstF(tokenv,tokent);
}
} else if(Tokenf(TF_FUNCTION)) {
AddInst2(OP_FUNCTION,tokenv&0x3FFF);
} else if(tokent==TF_OPEN) {
nxttok();
if(Tokenf(TF_MACRO) || !Tokenf(TF_NAME)) ParseError("Invalid parenthesized instruction\n");
switch(tokenv) {
default:
ParseError("Invalid parenthesized instruction\n");
}
} else if(tokent==TF_CLOSE) {
if(peep<ptr && cl->codes[ptr-1]<0x0100) cl->codes[ptr-1]+=0x1E00;
if(Inst8bit()) ChangeInst(+=0x1E00);
else AddInst(OP_RET);
break;
} else {
ParseError("Invalid instruction token\n");
}
if(ptr>=0xFFEF) ParseError("Out of code space\n");
}
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