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https://github.com/SEPPDROID/Digital-Research-Source-Code.git
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190 lines
5.0 KiB
C
190 lines
5.0 KiB
C
/*
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Copyright 1982
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Alcyon Corporation
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8716 Production Ave.
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San Diego, Ca. 92121
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*/
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#include "icode.h"
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char brtab[][2];
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int invrel[];
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int swaprel[];
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char *strtab[];
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char null[];
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/*operator tree node for unary and binary operators*/
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struct tnode {
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int t_op; /*operator*/
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int t_type; /*data type of result*/
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int t_su; /*Sethy-Ullman number*/
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int t_ssp;
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struct tnode *t_left; /*left sub-tree*/
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struct tnode *t_right; /*right sub-tree (undefined if unary)*/
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};
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/*constant terminal node*/
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struct conode {
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int t_op; /*operator*/
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int t_type; /*type*/
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int t_su; /*Sethy-Ullman number*/
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int t_ssp;
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int t_value; /*value or label number*/
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};
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struct lconode {
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int t_op; /*operator*/
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int t_type; /*type*/
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int t_su; /*Sethy-Ullman number*/
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int t_ssp;
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long t_lvalue; /*value or label number*/
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};
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/*local symbol terminal node*/
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struct symnode {
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int t_op; /*operator*/
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int t_type; /*symbol data type*/
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int t_su; /*Sethy-Ullman number*/
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int t_ssp;
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int t_sc; /*storage class*/
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int t_offset; /*register offset*/
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int t_reg; /*register number*/
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int t_label; /*label number if static*/
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};
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/*external symbol reference node*/
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struct extnode {
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int t_op; /*operator*/
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int t_type; /*symbol data type*/
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int t_su; /*Sethy-Ullman number*/
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int t_ssp;
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int t_sc; /*storage class*/
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int t_offset; /*register offset*/
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int t_reg; /*register number*/
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char t_symbol[SSIZE]; /*symbol name*/
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};
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/*68000 special - indexed symbol node*/
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/*this is used to generate a An(off,Xn.type) address*/
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struct indexnode {
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int t_op;
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int t_type;
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int t_su;
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int t_ssp;
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int t_sc;
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int t_offset;
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int t_reg;
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int t_xreg;
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int t_xtype;
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};
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int lflag;
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int dflag;
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int mflag;
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int cflag;
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int eflag;
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int fflag;
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int oflag;
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struct io_buf ibuf, obuf;
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int lineno;
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int naregs;
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int ndregs;
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int errcnt;
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int opinfo[];
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int nextlabel;
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char null[];
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char optab[][6];
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char *mnemonics[];
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char *codeskels[];
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int stacksize;
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char *tnalloc();
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char *snalloc();
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char *cenalloc();
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char *xnalloc();
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char *talloc();
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char *cnalloc();
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char *lcnalloc();
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char *fpcnalloc();
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char *canon();
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char *commute();
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char *constant();
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char *match();
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char *addptree();
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char *fixbfield();
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char *coffset();
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char *tcopy();
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#define wallign(add) ((add+1)&(~1))
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#define array(type) ((type&SUPTYP)==ARRAY)
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#define function(type) ((type&SUPTYP)==FUNCTION)
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#define pointer(type) ((type&SUPTYP)==POINTER)
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#define notarray(type) ((type&SUPTYP)!=ARRAY)
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#define notfunction(type) ((type&SUPTYP)!=FUNCTION)
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#define notpointer(type) ((type&SUPTYP)!=POINTER)
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#define isfloat(type) (type==FLOAT)
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#define btype(type) (type&TYPE)
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#define suptype(type) (type&SUPTYP)
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#define alltype(type) (type&(SUPTYP|TYPE))
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#define asgop(op) ((opinfo[op]&OPASSIGN)!=0)
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#define relop(op) ((opinfo[op]&OPREL)!=0)
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#define lintegral(op) ((opinfo[op]&OPLWORD)!=0)
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#define rintegral(op) ((opinfo[op]&OPRWORD)!=0)
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#define rasop(op) ((opinfo[op]&OPRAS)!=0)
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#define binop(op) ((opinfo[op]&OPBIN)!=0)
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#define unaryop(op) ((opinfo[op]&(OPBIN|OPTERM))==0)
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#define leafop(op) ((opinfo[op]&OPTERM)!=0)
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#define notleafop(op) ((opinfo[op]&OPTERM)==0)
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#define lvalop(op) ((opinfo[op]&OPLVAL)!=0)
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#define oppriority(op) (opinfo[op]&OPPRI)
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#define commop(op) ((opinfo[op]&OPCOM)!=0)
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#define convop(op) ((opinfo[op]&OPCONVS)!=0)
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#define notconvop(op) ((opinfo[op]&OPCONVS)==0)
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#define max(a,b) (a>b?a:b)
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#define min(a,b) (a<b?a:b)
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#define QUICKVAL 8
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#define LEP 14
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#define FORCC 1
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#define FOREFF 2
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#define FORSTACK 3
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#define FORCREG 4
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#define FORSP 5
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#define FORREG 4
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#define HICREG 2
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#define NCREGS 3
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#define AREGLO 8
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#define IMMED 1
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#define NOTIMMED 0
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#define NOTLOFFSET 0
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/* one line routines turned into defines [vlh] for speed */
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/*outgoto - output "bra L[labno]"*/
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#define outgoto(lab) if (lab>0) printf("bra L%d\n",lab)
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/*outlab - output "L[labno]:"*/
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#define outlab(lab) if (lab>0) printf("L%d:",lab)
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/*outext - output register sign extension*/
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#define outext(reg) printf("ext.l R%d\n",reg)
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/*outuext - output unsigned to long register extension*/
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#define outuext(reg) printf("swap R%d\nclr R%d\nswap R%d\n",reg,reg,reg)
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/*outswap - output swap register instruction*/
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#define outswap(reg) printf("swap R%d\n",reg)
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/*outaddr - output "add [type] R1 R2" instruction*/
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#define outaddr(r1,r2,tp) outrr("add",r1,r2,(tp))
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/*outccsave - ouput instruction to move cc's to register*/
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#define outccsave(reg) printf("move sr,R%d\n",reg)
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/*outccrestore - output instruction to restore cc's from register*/
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#define outccrestore(reg) printf("move R%d,ccr\n",reg)
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/*basetype - get the btype info sans unsigned*/
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#define basetype(type) ((type==UNSIGNED) ? INT : type)
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#define unsign(type) ((type) == UNSIGNED)
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#define longorptr(type) (type==LONG || (type&SUPTYP))
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#define unorptr(type) (type==UNSIGNED || (type&SUPTYP))
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#define dreg(reg) ((reg) & (~AREGLO))
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#define areg(reg) ((reg) | AREGLO)
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#define isareg(reg) ((reg) >= AREGLO)
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#define isdreg(reg) ((reg) < AREGLO)
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#define isreg(tp) ((tp)->t_op == SYMBOL && (tp)->t_sc == REGISTER)
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