mirror of
https://github.com/SEPPDROID/Digital-Research-Source-Code.git
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253 lines
6.5 KiB
C
253 lines
6.5 KiB
C
/*
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Copyright 1983
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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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@(#)cgen.h 1.7 12/28/83
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*/
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#include "machine.h"
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#ifdef WHITESM
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# include <stdio.h>
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# include <klib.h>
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# undef putchar
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# define putchar xputchar
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# undef ferror
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# define ferror xferror
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# define printf xprintf
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# define VAX11
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#endif
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#ifdef CPM
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# include <stdio.h>
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# include <klib.h>
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# undef putchar
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# define putchar xputchar
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# undef ferror
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# define ferror xferror
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# define printf xprintf
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#endif
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#ifndef DECC
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# include "icode.h"
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#else
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/* ICODE equivilent to icode.h, vprintf printf for vax/vms */
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# include "ICODE"
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# define printf vprintf
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# define VAX11
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#endif
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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 NOTLOFFSET 0
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/*tcopy + outaexpr flags - generate prefix operators, postfix operators*/
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#define A_DOPRE 1
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#define A_DOPOST 2
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#define A_DOIMMED 4
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#define A_NOIMMED 0
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#define STDERR 2
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#define PATHSIZE 128
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char brtab[][2];
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short invrel[];
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short swaprel[];
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char *strtab[];
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/*operator tree node for unary and binary operators*/
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struct tnode {
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short t_op; /*operator*/
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short t_type; /*data type of result*/
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short t_su; /*Sethy-Ullman number*/
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short 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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short t_op; /*operator*/
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short t_type; /*type*/
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short t_su; /*Sethy-Ullman number*/
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short t_ssp;
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short t_value; /*value or label number*/
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};
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/*long constant terminal node*/
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struct lconode {
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short t_op; /*operator*/
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short t_type; /*type*/
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short t_su; /*Sethy-Ullman number*/
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short 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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short t_op; /*operator*/
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short t_type; /*symbol data type*/
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short t_su; /*Sethy-Ullman number*/
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short t_ssp;
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short t_sc; /*storage class*/
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long t_offset; /*register offset*/
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short t_reg; /*register number*/
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short 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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short t_op; /*operator*/
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short t_type; /*symbol data type*/
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short t_su; /*Sethy-Ullman number*/
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short t_ssp;
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short t_sc; /*storage class*/
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long t_offset; /*register offset*/
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short 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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short t_op;
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short t_type;
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short t_su;
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short t_ssp;
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short t_sc;
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long t_offset; /* [vlh] 4.3, was a short !!! */
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short t_reg;
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short t_xreg;
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short t_xtype;
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};
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/* io buffer declaration */
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#define BSIZE 512
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struct iob {
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int fd;
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int cc;
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char *cp;
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char cbuf[BSIZE];
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} ibuf, lbuf, obuf;
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/* Code generation argument flags */
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short dflag;
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short mflag;
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short cflag;
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short eflag;
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short fflag;
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short oflag;
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short lflag;
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short m68010; /* [vlh] 4.2, differentiate between chip destination */
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/* Miscellaneous variables */
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short lineno;
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short errcnt;
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short opinfo[];
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short nextlabel;
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char optab[][6];
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char *mnemonics[];
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char *codeskels[];
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short stacksize;
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/* general define macros */
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#define WALLIGN(add) ((add+1)&(~1))
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#define ISARRAY(type) ((type&SUPTYP)==ARRAY)
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#define ISFUNCTION(type) ((type&SUPTYP)==FUNCTION)
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#define ISPOINTER(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 ISALLTYPE(type) (type&(SUPTYP|TYPE))
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#define ISASGOP(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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/* 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 OUTSRSAVE(reg) printf("move sr,R%d\n",reg)
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#define OUTCCSAVE(reg) printf("move ccr,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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#define CONSTZERO(ltyp,p) ((ltyp && !p->t_lvalue) || (!ltyp && !p->t_value))
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#define SETVAL(ltyp,p,val) if (ltyp) p->t_lvalue = val; else p->t_value = val
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#ifdef DEBUG
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# define PUTEXPR(cond,id_str,node_ptr) if (cond) putexpr(id_str,node_ptr)
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#else
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# define PUTEXPR(cond,id_str,node_ptr)
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#endif
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/* Functions pre-declared */
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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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char *fixptree();
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long readlong();
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short readshort();
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