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vt100-games/cpmtris/zmac/zmac.y

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Added Cpmtris
2019-10-24 11:48:18 +02:00
%{
/*
* zmac -- macro cross-assembler for the Zilog Z80 microprocessor
*
* Bruce Norskog 4/78
*
* Last modification 2000-07-01 by mgr
*
* This assembler is modeled after the Intel 8080 macro cross-assembler
* for the Intel 8080 by Ken Borgendale. The major features are:
* 1. Full macro capabilities
* 2. Conditional assembly
* 3. A very flexible set of listing options and pseudo-ops
* 4. Symbol table output
* 5. Error report
* 6. Elimination of sequential searching
* 7. Commenting of source
* 8. Facilities for system definiton files
*
* (Revision history is now in ChangeLog. -rjm)
*/
#define ZMAC_VERSION "1.3"
/* #define ZMAC_BETA "b4" */
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <time.h>
#include "mio.h"
#include "getoptn.h"
#define UNUSED(var) ((void) var)
#if defined (__riscos__) && !defined (__riscos)
#define __riscos
#endif
#ifdef __riscos
#include "swis.h"
#define DDEUtils_Prefix 0x42580
#define DDEUtils_ThrowbackStart 0x42587
#define DDEUtils_ThrowbackSend 0x42588
#define DDEUtils_ThrowbackEnd 0x42589
#endif
#ifndef OS_DIR_SEP
#if defined (MSDOS)
#define OS_DIR_SEP '\\'
#elif defined (__riscos)
#define OS_DIR_SEP '.'
#else
#define OS_DIR_SEP '/'
#endif
#endif
#ifndef OS_EXT_SEP
#if defined (__riscos)
#define OS_EXT_SEP '/'
#else
#define OS_EXT_SEP '.'
#endif
#endif
/*
* DEBUG turns on pass reporting.
* Macro debug and Token debug enables.
#define DEBUG
#define M_DEBUG
#define T_DEBUG
*/
#define ITEMTABLESIZE 2000
#define TEMPBUFSIZE 200
#define LINEBUFFERSIZE 200
#define EMITBUFFERSIZE 200
#define MAXSYMBOLSIZE 40
#define IFSTACKSIZE 20
#define MAXIFS 1024
#define TITLELEN 50
#define BINPERLINE 16
#define PARMMAX 25
#define MAXEXP 25
#define SYMMAJIC 07203
#define NEST_IN 8
#define loop for(;;)
void yyerror(char *err)
{
UNUSED (err); /* we will do our own error printing */
/* printf ("Oops! %s\n", err); */
}
struct item {
char *i_string;
int i_value;
int i_token;
int i_uses;
int i_equbad;
};
FILE *fout,
*fbuf,
*fin[NEST_IN],
*now_file ;
int pass2; /* set when pass one completed */
int dollarsign ; /* location counter */
int olddollar ; /* kept to put out binary */
/* program counter save for PHASE/DEPHASE */
int phdollar, phbegin, phaseflag ;
char *src_name[NEST_IN] ;
int linein[NEST_IN] ;
int now_in ;
#define bflag 0 /* balance error */
#define eflag 1 /* expression error */
#define fflag 2 /* syntax error */
#define iflag 3 /* bad digits */
#define mflag 4 /* multiply defined */
#define pflag 5 /* phase error */
#define uflag 6 /* undeclared used */
#define vflag 7 /* value out of range */
#define oflag 8 /* phase/dephase error */
#define frflag 9 /* double forward ref. via equ error */
#define zflag 10 /* Z80-only instruction (when `-z' option in use) */
#define orgflag 11 /* retrograde org error (when `-h' option not in use) */
#define FLAGS 12 /* number of flags */
char err[FLAGS];
int keeperr[FLAGS];
char errlet[FLAGS]="BEFIMPUVORZG";
char *errname[FLAGS]={
"Balance",
"Expression",
"Syntax",
"Digit",
"Mult. def.",
"Phase",
"Undeclared",
"Value",
"Phase/Dephase",
"Forward ref. to EQU with forward ref.",
"Z80-specific instruction",
"Retrograde ORG"
};
char *warnname[]={
"Symbol length exceeded",
"Non-standard syntax",
"Could replace JP with JR",
"Could replace LD A, 0 with XOR A if flags unimportant",
"Could replace RLC A with RLCA if S, Z and P/V flags unimportant",
"Could replace RRC A with RRCA if S, Z and P/V flags unimportant",
"Could replace RL A with RLA if S, Z and P/V flags unimportant",
"Could replace RR A with RRA if S, Z and P/V flags unimportant",
"Could replace SLA A with ADD A, A if H and P/V flags unimportant"
};
/* for "0 symbols", "1 symbol", "2 symbols", etc. */
#define DO_PLURAL(x) (x),((x)==1)?"":"s"
char linebuf[LINEBUFFERSIZE];
char *lineptr;
char *linemax = linebuf+LINEBUFFERSIZE;
char outbin[BINPERLINE];
char *outbinp = outbin;
char *outbinm = outbin+BINPERLINE;
char emitbuf[EMITBUFFERSIZE];
char *emitptr;
char ifstack[IFSTACKSIZE];
char *ifptr;
char *ifstmax = ifstack+IFSTACKSIZE-1;
char expif[MAXIFS];
char *expifp;
char *expifmax = expif+MAXIFS;
char hexadec[] = "0123456789ABCDEF" ;
char *expstack[MAXEXP];
int expptr;
int nitems;
int linecnt;
int nbytes;
int invented;
char tempbuf[TEMPBUFSIZE];
char *tempmax = tempbuf+TEMPBUFSIZE-1;
char inmlex;
char arg_flag;
char quoteflag;
int parm_number;
int exp_number;
char symlong[] = "Symbol too long";
int disp;
#define FLOC PARMMAX
#define TEMPNUM PARMMAX+1
char **est;
char **est2;
char *floc;
int mfptr;
FILE *mfile;
char *title;
char titlespace[TITLELEN];
char *timp;
char *sourcef;
/* changed to cope with filenames longer than 14 chars -rjm 1998-12-15 */
char src[1024];
char bin[1024];
char mtmp[1024];
char listf[1024];
char writesyms[1024];
#ifdef __riscos
char riscos_thbkf[1024];
#endif
char bopt = 1,
edef = 1,
eopt = 1,
fdef = 0,
fopt = 0,
gdef = 1,
gopt = 1,
iopt = 0 , /* list include files */
lstoff = 0,
lston = 0, /* flag to force listing on */
lopt = 0,
mdef = 0,
mopt = 0,
nopt = 1, /* line numbers on as default */
oldoopt = 0,
popt = 1, /* form feed as default page eject */
sopt = 0, /* turn on symbol table listing */
output_hex = 0, /* `-h', output .hex rather than .bin -rjm */
output_8080_only = 0, /* `-z', output 8080-compat. ops only -rjm */
show_error_line = 0, /* `-S', show line which caused error -rjm */
terse_lst_errors = 0, /* `-t', terse errors in listing -rjm */
continuous_listing = 1, /* `-d', discontinuous - with page breaks */
suggest_optimise = 0, /* `-O', suggest optimisations -mgr */
#ifdef __riscos
riscos_thbk = 0, /* `-T', RISC OS throwback -mep */
#endif
output_amsdos = 0, /* `-A', AMSDOS binary file output -mep */
saveopt;
char xeq_flag = 0;
int xeq;
time_t now;
int line;
int page = 1;
int had_errors = 0; /* if program had errors, do exit(1) */
#ifdef __riscos
int riscos_throwback_started = 0;
#endif
int not_seen_org = 1;
int first_org_store = 0;
struct stab {
char t_name[MAXSYMBOLSIZE+1];
int t_value;
int t_token;
};
/*
* push back character
*/
int peekc;
/* function prototypes */
int addtoline(int ac);
int iflist(void);
int yylex(void);
int tokenofitem(int deftoken);
int nextchar(void);
int skipline(int ac);
void usage(void);
int main(int argc, char *argv[]);
int getarg(void);
int getm(void);
void yyerror(char *err);
void emit(int num, ...);
void emit1(int opcode,int regvalh,int data16,int type);
void emitdad(int rp1,int rp2);
void emitjr(int opcode,int expr);
void emitjp(int opcode,int expr);
void putbin(int v);
void flushbin(void);
void puthex(char byte, FILE *buf);
void list(int optarg);
void lineout(void);
void eject(void);
void space(int n);
void lsterr1(void);
void lsterr2(int lst);
void errorprt(int errnum);
void warnprt(int warnnum, int warnoff);
void list1(void);
void interchange(int i, int j);
void custom_qsort(int m, int n);
void setvars(void);
void error(char *as);
void fileerror(char *as,char *filename);
void justerror(char *as);
void putsymtab(void);
void erreport(void);
void mlex(void);
void suffix_if_none(char *str,char *suff);
void suffix(char *str,char *suff);
void decanonicalise(char *str);
void putm(char c);
void popsi(void);
char *getlocal(int c, int n);
void insymtab(char *name);
void outsymtab(char *name);
void copyname(char *st1, char *st2);
void next_source(char *sp);
void doatexit (void);
#ifdef __riscos
void riscos_set_csd(char *sp);
void riscos_throwback(int severity, char *file, int line, char *error);
#endif
/*
* add a character to the output line buffer
*/
int addtoline(int ac)
{
/* check for EOF from stdio */
if (ac == -1)
ac = 0 ;
if (inmlex)
return(ac);
if (lineptr >= linemax)
error("line buffer overflow");
*lineptr++ = ac;
return(ac);
}
/*
* put values in buffer for outputing
*/
void emit(int bytes, ...)
{
va_list ap;
unsigned char *oldemitptr=(unsigned char *)emitptr;
int c;
va_start(ap,bytes);
while (--bytes >= 0)
if (emitptr >= &emitbuf[EMITBUFFERSIZE])
error("emit buffer overflow");
else {
*emitptr++ = va_arg(ap,int);
}
if (output_8080_only) {
/* test for Z80-specific ops. These start with one of
* sixteen byte values, listed below. The values were
* taken from "A Z80 Workshop Manual" by E. A. Parr. -rjm
*/
/* As far as I can tell from my own literature
* review, 0x02, 0x0a, 0x12 and 0x1a are valid
* 8080 opcodes (LDAX/STAX B/D) -mgr
*/
c=*oldemitptr;
if (/* c==0x02 || */ c==0x08 || /* c==0x0a || */ c==0x10 ||
/* c==0x12 || */ c==0x18 || /* c==0x1a || */ c==0x20 ||
c==0x28 || c==0x30 || c==0x38 || c==0xcb ||
c==0xd9 || c==0xdd || c==0xed || c==0xfd)
err[zflag]++;
}
va_end(ap);
}
/* for emitted data - as above, without 8080 test.
* Duplicating the code was easier than putting an extra arg in all
* those emit()s. :-} Hopefully this isn't too unbearably nasty. -rjm
*/
void dataemit(int bytes, ...)
{
va_list ap;
va_start(ap,bytes);
while (--bytes >= 0)
if (emitptr >= &emitbuf[EMITBUFFERSIZE])
error("emit buffer overflow");
else {
*emitptr++ = va_arg(ap,int);
}
va_end(ap);
}
void emit1(int opcode,int regvalh,int data16,int type)
{
if ((regvalh & 0x8000)) { /* extra brackets to silence -Wall */
if ((type & 1) == 0 && (disp > 127 || disp < -128))
err[vflag]++;
switch(type) {
case 0:
if (opcode & 0x8000)
emit(4, regvalh >> 8, opcode >> 8, disp, opcode);
else
emit(3, regvalh >> 8, opcode, disp);
break;
case 1:
emit(2, regvalh >> 8, opcode);
break;
case 2:
if (data16 > 255 || data16 < -128)
err[vflag]++;
emit(4, regvalh >> 8, opcode, disp, data16);
break;
case 5:
emit(4, regvalh >> 8, opcode, data16, data16 >> 8);
}
} else
switch(type) {
case 0:
if (opcode & 0100000)
emit(2, opcode >> 8, opcode);
else
emit(1, opcode);
break;
case 1:
if (opcode & 0100000)
emit(2, opcode >> 8, opcode);
else
emit(1, opcode);
break;
case 2:
if (data16 > 255 || data16 < -128)
err[vflag]++;
emit(2, opcode, data16);
break;
case 3:
if (data16 >255 || data16 < -128)
err[vflag]++;
emit(2, opcode, data16);
break;
case 5:
if (opcode & 0100000)
emit(4, opcode >> 8, opcode, data16, data16 >> 8);
else
emit(3, opcode, data16, data16 >> 8);
}
}
void emitdad(int rp1,int rp2)
{
if (rp1 & 0x8000)
emit(2,rp1 >> 8, rp2 + 9);
else
emit(1,rp2 + 9);
}
void emitjr(int opcode,int expr)
{
disp = expr - dollarsign - 2;
if (disp > 127 || disp < -128)
err[vflag]++;
emit(2, opcode, disp);
}
void emitjp(int opcode,int expr)
{
if (suggest_optimise && pass2 && opcode <= 0xda && !output_8080_only) {
disp = expr - dollarsign - 2;
if (disp <= 127 && disp >= -128)
warnprt (2, 0);
}
emit(3, opcode, expr, expr >> 8);
}
/*
* put out a byte of binary
*/
void putbin(int v)
{
if(!pass2 || !bopt) return;
*outbinp++ = v;
if (outbinp >= outbinm) flushbin();
}
/*
* output one line of binary in INTEL standard form
*/
void flushbin()
{
char *p;
int check=outbinp-outbin;
if (!pass2 || !bopt)
return;
nbytes += check;
if (check) {
if (output_hex) {
putc(':', fbuf);
puthex(check, fbuf);
puthex(olddollar>>8, fbuf);
puthex(olddollar, fbuf);
puthex(0, fbuf);
}
check += (olddollar >> 8) + olddollar;
olddollar += (outbinp-outbin);
for (p=outbin; p<outbinp; p++) {
if (output_hex)
puthex(*p, fbuf);
else
fputc(*p, fbuf);
check += *p;
}
if (output_hex) {
puthex(256-check, fbuf);
putc('\n', fbuf);
}
outbinp = outbin;
}
}
/*
* put out one byte of hex
*/
void puthex(char byte, FILE *buf)
{
putc(hexadec[(byte >> 4) & 017], buf);
putc(hexadec[byte & 017], buf);
}
/*
* put out a line of output -- also put out binary
*/
void list(int optarg)
{
char * p;
int i;
int lst;
if (!expptr)
linecnt++;
addtoline('\0');
if (pass2) {
lst = iflist();
if (lst) {
lineout();
if (nopt)
fprintf(fout, "%4d:\t", linein[now_in]);
puthex(optarg >> 8, fout);
puthex(optarg, fout);
fputs(" ", fout);
for (p = emitbuf; (p < emitptr) && (p - emitbuf < 4); p++) {
puthex(*p, fout);
}
for (i = 4 - (p-emitbuf); i > 0; i--)
fputs(" ", fout);
putc('\t', fout);
fputs(linebuf, fout);
}
if (bopt) {
for (p = emitbuf; p < emitptr; p++)
putbin(*p);
}
p = emitbuf+4;
while (lst && gopt && p < emitptr) {
lineout();
if (nopt) putc('\t', fout);
fputs(" ", fout);
for (i = 0; (i < 4) && (p < emitptr);i++) {
puthex(*p, fout);
p++;
}
putc('\n', fout);
}
lsterr2(lst);
} else
lsterr1();
dollarsign += emitptr - emitbuf;
emitptr = emitbuf;
lineptr = linebuf;
}
/*
* keep track of line numbers and put out headers as necessary
*/
void lineout()
{
if (continuous_listing) {
line = 1;
return;
}
if (line == 60) {
if (popt)
putc('\014', fout); /* send the form feed */
else
fputs("\n\n\n\n\n", fout);
line = 0;
}
if (line == 0) {
fprintf(fout, "\n\n%s %s\t%s\t Page %d\n\n\n",
&timp[4], &timp[20], title, page++);
line = 4;
}
line++;
}
/*
* cause a page eject
*/
void eject()
{
if (pass2 && !continuous_listing && iflist()) {
if (popt) {
putc('\014', fout); /* send the form feed */
} else {
while (line < 65) {
line++;
putc('\n', fout);
}
}
}
line = 0;
}
/*
* space n lines on the list file
*/
void space(int n)
{
int i ;
if (pass2 && iflist())
for (i = 0; i<n; i++) {
lineout();
putc('\n', fout);
}
}
/*
* Error handling - pass 1
*/
void lsterr1()
{
int i;
for (i = 0; i <= 4; i++)
if (err[i]) {
errorprt(i);
err[i] = 0;
}
}
/*
* Error handling - pass 2.
*/
void lsterr2(int lst)
{
int i;
for (i=0; i<FLAGS; i++)
if (err[i]) {
if (lst) {
lineout();
/* verbose inline error messages now,
* must override with `-t' to get old
* behaviour. -rjm
*/
if (terse_lst_errors)
putc(errlet[i], fout);
else
fprintf(fout,"*** %s error ***",
errname[i]);
putc('\n', fout);
}
err[i] = 0;
keeperr[i]++;
if (i > 4)
errorprt(i);
}
fflush(fout); /* to avoid putc(har) mix bug */
}
/*
* print diagnostic to error terminal
*/
void errorprt(int errnum)
{
had_errors=1;
fprintf(stderr,"%s:%d: %s error\n",
src_name[now_in], linein[now_in], errname[errnum]);
if(show_error_line)
fprintf(stderr, "%s\n", linebuf);
#ifdef __riscos
if (riscos_thbk)
riscos_throwback (1, src_name[now_in], linein[now_in], errname[errnum]);
#endif
}
/*
* print warning to error terminal
*/
void warnprt(int warnnum, int warnoff)
{
fprintf(stderr,"%s:%d: warning: %s\n",
src_name[now_in], linein[now_in] + warnoff, warnname[warnnum]);
/* Offset needed if warning issued while line is being parsed */
#ifdef __riscos
if (riscos_thbk)
riscos_throwback (0, src_name[now_in], linein[now_in] + warnoff, warnname[warnnum]);
#endif
/* if(show_error_line)
Can't show line because it isn't necessarily complete
fprintf(stderr, "%s\n", linebuf); */
}
/*
* list without address -- for comments and if skipped lines
*/
void list1()
{
int lst;
addtoline('\0');
lineptr = linebuf;
if (!expptr) linecnt++;
if (pass2)
{
if ((lst = iflist())) {
lineout();
if (nopt)
fprintf(fout, "%4d:\t", linein[now_in]);
fprintf(fout, "\t\t%s", linebuf);
lsterr2(lst);
}
} else
lsterr1();
}
/*
* see if listing is desired
*/
int iflist()
{
int i, j;
if (lston)
return(1) ;
if (lopt)
return(0);
if (*ifptr && !fopt)
return(0);
if (!lstoff && !expptr)
return(1);
j = 0;
for (i=0; i<FLAGS; i++)
if (err[i])
j++;
if (expptr)
return(mopt || j);
if (eopt && j)
return(1);
return(0);
}
/* moved out of %{..%} bit in parse routine because `bison -y'
* didn't like it... -rjm
*/
char *cp;
int list_tmp1,list_tmp2;
int equ_bad_label=0;
%}
%union {
struct item *itemptr;
int ival;
char *cval;
}
%token <cval> STRING
%token <itemptr> NOOPERAND
%token <itemptr> ARITHC
%token ADD
%token <itemptr> LOGICAL
%token <itemptr> AND
%token <itemptr> OR
%token <itemptr> XOR
%token <itemptr> BIT
%token CALL
%token <itemptr> INCDEC
%token <itemptr> DJNZ
%token EX
%token <itemptr> IM
%token PHASE
%token DEPHASE
%token <itemptr> IN
%token JP
%token <itemptr> JR
%token LD
%token <itemptr> OUT
%token <itemptr> PUSHPOP
%token <itemptr> RET
%token <itemptr> SHIFT
%token <itemptr> RST
%token <itemptr> REGNAME
%token <itemptr> ACC
%token <itemptr> C
%token <itemptr> RP
%token <itemptr> HL
%token <itemptr> INDEX
%token <itemptr> AF
%token <itemptr> SP
%token <itemptr> MISCREG
%token F
%token <itemptr> COND
%token <itemptr> SPCOND
%token <ival> NUMBER
%token <itemptr> UNDECLARED
%token END
%token ORG
%token DEFB
%token DEFS
%token DEFW
%token EQU
%token DEFL
%token <itemptr> LABEL
%token <itemptr> EQUATED
%token <itemptr> WASEQUATED
%token <itemptr> DEFLED
%token <itemptr> MULTDEF
%token <ival> MOD
%token <ival> SHL
%token <ival> SHR
%token <ival> NOT
%token <ival> LT
%token <ival> GT
%token <ival> EQ
%token <ival> LE
%token <ival> GE
%token <ival> NE
%token IF
%token ELSE
%token ENDIF
%token <itemptr> ARGPSEUDO
%token <itemptr> LIST
%token <itemptr> MINMAX
%token MACRO
%token <itemptr> MNAME
%token <itemptr> OLDMNAME
%token ARG
%token ENDM
%token MPARM
%token <ival> ONECHAR
%token <ival> TWOCHAR
%type <itemptr> label.part symbol
%type <ival> reg evenreg realreg mem pushable bcdesp bcdehlsp mar condition
%type <ival> spcondition noparenexpr parenexpr expression lxexpression
%left '|' OR
%left '^' XOR
%left '&' AND
%left '=' EQ NE
%left '<' '>' LT GT LE GE
%left SHL SHR
%left '+' '-'
%left '*' '/' '%' MOD
%right '!' '~' NOT UNARY
%%
statements:
/* Empty file! */
|
statements statement
;
statement:
label.part '\n' {
if ($1) list(dollarsign);
else list1();
}
|
label.part operation '\n' {
list(dollarsign);
}
|
symbol EQU expression '\n' {
/* a forward reference to a label in the expression cannot
* be fixed in a forward reference to the EQU;
* it would need three passes. -rjm
*/
if(!pass2 && equ_bad_label) {
/* this indicates that the equ has an incorrect
* (i.e. pass 1) value.
*/
$1->i_equbad = 1;
} else {
/* but if 2nd pass or no forward reference, it's ok. */
$1->i_equbad = 0;
}
equ_bad_label=0;
switch($1->i_token) {
case UNDECLARED: case WASEQUATED:
$1->i_token = EQUATED;
$1->i_value = $3;
break;
case EQUATED:
if ($1->i_value == $3)
break; /* Allow benign redefinition -mgr */
/* Drop-through intentional */
default:
err[mflag]++;
$1->i_token = MULTDEF;
}
list($3);
}
|
symbol DEFL expression '\n' {
switch($1->i_token) {
case UNDECLARED: case DEFLED:
$1->i_token = DEFLED;
$1->i_value = $3;
break;
default:
err[mflag]++;
$1->i_token = MULTDEF;
}
list($3);
}
|
symbol MINMAX expression ',' expression '\n' {
switch ($1->i_token) {
case UNDECLARED: case DEFLED:
$1->i_token = DEFLED;
if ($2->i_value) /* max */
list($1->i_value = ($3 > $5? $3:$5));
else list($1->i_value = ($3 < $5? $3:$5));
break;
default:
err[mflag]++;
$1->i_token = MULTDEF;
list($1->i_value);
}
}
|
IF expression '\n' {
/* all $2's here were yypc[2].ival before.
* I think the idea was perhaps to allow constants
* only...? Anyway, it now allows any expression -
* which would seem to make sense given the definition
* above, right? :-) -rjm
*/
if (ifptr >= ifstmax)
error("Too many ifs");
else {
if (pass2) {
*++ifptr = *expifp++;
if (*ifptr != !($2)) err[pflag]++;
} else {
if (expifp >= expifmax)
error("Too many ifs!");
*expifp++ = !($2);
*++ifptr = !($2);
}
}
saveopt = fopt;
fopt = 1;
list($2);
fopt = saveopt;
}
|
ELSE '\n' {
/* FIXME: it would be nice to spot repeated ELSEs, but how? */
*ifptr = !*ifptr;
saveopt = fopt;
fopt = 1;
list1();
fopt = saveopt;
}
|
ENDIF '\n' {
if (ifptr == ifstack) err[bflag]++;
else --ifptr;
list1();
}
|
label.part END '\n' {
list(dollarsign);
peekc = 0;
}
|
label.part END expression '\n' {
xeq_flag++;
xeq = $3;
list($3);
peekc = 0;
}
|
label.part DEFS expression '\n' {
if ($3 < 0) err[vflag]++;
list(dollarsign);
if ($3) {
flushbin();
dollarsign += $3;
olddollar = dollarsign;
/* if it's not hex output though, we also need
* to output zeroes as appropriate. -rjm
*/
if(!output_hex && pass2) {
int f;
for (f=0;f<($3);f++)
fputc(0, fbuf);
}
}
}
|
ARGPSEUDO arg_on ARG arg_off '\n' {
list1();
switch ($1->i_value) {
case 0: /* title */
lineptr = linebuf;
cp = tempbuf;
title = titlespace;
while ((*title++ = *cp++) && (title < &titlespace[TITLELEN]));
*title = 0;
title = titlespace;
break;
case 1: /* rsym */
if (pass2) break;
insymtab(tempbuf);
break;
case 2: /* wsym */
strcpy(writesyms, tempbuf);
break;
case 3: /* include file */
if (*tempbuf == '"' || *tempbuf == '\'')
{
if (tempbuf[strlen (tempbuf) - 1] == '"' || tempbuf[strlen (tempbuf) - 1] == '\'')
tempbuf[strlen (tempbuf) - 1] = 0;
next_source(tempbuf + 1) ;
}
else
{
next_source(tempbuf) ;
}
break ;
}
}
|
ARGPSEUDO arg_on arg_off '\n' {
fprintf(stderr,"ARGPSEUDO error\n");
err[fflag]++;
list(dollarsign);
}
|
LIST '\n' {
list_tmp1=$1->i_value;
list_tmp2=1;
goto dolopt;
}
|
LIST expression '\n' {
list_tmp1=$1->i_value;
list_tmp2=$2;
dolopt:
linecnt++;
if (pass2) {
lineptr = linebuf;
switch (list_tmp1) {
case 0: /* list */
if (list_tmp2 < 0) lstoff = 1;
if (list_tmp2 > 0) lstoff = 0;
break;
case 1: /* eject */
if (list_tmp2) eject();
break;
case 2: /* space */
if ((line + list_tmp2) > 60) eject();
else space(list_tmp2);
break;
case 3: /* elist */
eopt = edef;
if (list_tmp2 < 0) eopt = 0;
if (list_tmp2 > 0) eopt = 1;
break;
case 4: /* fopt */
fopt = fdef;
if (list_tmp2 < 0) fopt = 0;
if (list_tmp2 > 0) fopt = 1;
break;
case 5: /* gopt */
gopt = gdef;
if (list_tmp2 < 0) gopt = 1;
if (list_tmp2 > 0) gopt = 0;
break;
case 6: /* mopt */
mopt = mdef;
if (list_tmp2 < 0) mopt = 0;
if (list_tmp2 > 0) mopt = 1;
}
}
}
|
UNDECLARED MACRO parm.list '\n' {
$1->i_token = MNAME;
$1->i_value = mfptr;
#ifdef M_DEBUG
fprintf (stderr, "[UNDECLARED MACRO %s]\n", $1->i_string);
#endif
mfseek(mfile, (long)mfptr, 0);
list1();
mlex() ;
parm_number = 0;
}
|
OLDMNAME MACRO {
$1->i_token = MNAME;
#ifdef M_DEBUG
fprintf (stderr, "[OLDNAME MACRO %s]\n", $1->i_string);
#endif
while (yychar != ENDM && yychar) {
while (yychar != '\n' && yychar)
yychar = yylex();
list1();
yychar = yylex();
}
while (yychar != '\n' && yychar) yychar = yylex();
list1();
yychar = yylex();
}
|
label.part MNAME al arg.list '\n' {
#ifdef M_DEBUG
fprintf (stderr, "[MNAME %s]\n", $2->i_string);
#endif
$2->i_uses++ ;
arg_flag = 0;
parm_number = 0;
list(dollarsign);
expptr++;
est = est2;
est2 = NULL;
est[FLOC] = floc;
est[TEMPNUM] = (char *)(long)exp_number++;
floc = (char *)(long)($2->i_value);
mfseek(mfile, (long)floc, 0);
}
|
error {
err[fflag]++;
quoteflag = 0;
arg_flag = 0;
parm_number = 0;
if (est2)
{
int i;
for (i=0; i<PARMMAX; i++) {
if (est2[i])
#ifdef M_DEBUG
fprintf (stderr, "[Freeing2 arg%u(%p)]\n", i, est2[i]),
#endif
free(est2[i]);
}
free(est2);
est2 = NULL;
}
while(yychar != '\n' && yychar != '\0') yychar = yylex();
list(dollarsign);
yyclearin;yyerrok;
}
;
colonordot:
':'
|
'.'
;
maybecolon:
/* empty */
|
':'
;
label.part:
/* empty */
{ $$ = NULL; }
|
colonordot symbol {
switch($2->i_token) {
case UNDECLARED:
if (pass2)
err[pflag]++;
else {
$2->i_token = LABEL;
$2->i_value = dollarsign;
}
break;
case LABEL:
if (!pass2) {
$2->i_token = MULTDEF;
err[mflag]++;
} else if ($2->i_value != dollarsign)
err[pflag]++;
break;
default:
err[mflag]++;
$2->i_token = MULTDEF;
}
}
|
symbol maybecolon {
switch($1->i_token) {
case UNDECLARED:
if (pass2)
err[pflag]++;
else {
$1->i_token = LABEL;
$1->i_value = dollarsign;
}
break;
case LABEL:
if (!pass2) {
$1->i_token = MULTDEF;
err[mflag]++;
} else if ($1->i_value != dollarsign)
err[pflag]++;
break;
default:
err[mflag]++;
$1->i_token = MULTDEF;
}
}
;
operation:
NOOPERAND
{ emit1($1->i_value, 0, 0, 1); }
|
JP expression
{ emitjp(0303, $2); }
|
CALL expression
{ emit(3, 0315, $2, $2 >> 8); }
|
RST expression
{ int a = $2, doneerr=0;
/* added support for normal RST form -rjm */
if (a >= 8) {
if ((a&7)!=0) doneerr=1,err[vflag]++;
a >>= 3;
}
if ((a > 7 || a < 0) && !doneerr) /* don't give two errs... */
err[vflag]++;
emit(1, $1->i_value + (a << 3));
}
|
ADD expression
{ emit1(0306, 0, $2, 3); if (pass2) warnprt (1, 0); }
|
ADD ACC ',' expression
{ emit1(0306, 0, $4, 3); }
|
ARITHC expression
{ emit1(0306 + ($1->i_value << 3), 0, $2, 3); if (pass2) warnprt (1, 0); }
|
ARITHC ACC ',' expression
{ emit1(0306 + ($1->i_value << 3), 0, $4, 3); }
|
LOGICAL expression
{ emit1(0306 | ($1->i_value << 3), 0, $2, 3); }
|
AND expression
{ emit1(0306 | ($1->i_value << 3), 0, $2, 3); }
|
OR expression
{ emit1(0306 | ($1->i_value << 3), 0, $2, 3); }
|
XOR expression
{ emit1(0306 | ($1->i_value << 3), 0, $2, 3); }
|
LOGICAL ACC ',' expression /* -cdk */
{ emit1(0306 | ($1->i_value << 3), 0, $4, 3); if (pass2) warnprt (1, 0); }
|
AND ACC ',' expression /* -cdk */
{ emit1(0306 | ($1->i_value << 3), 0, $4, 3); if (pass2) warnprt (1, 0); }
|
OR ACC ',' expression /* -cdk */
{ emit1(0306 | ($1->i_value << 3), 0, $4, 3); if (pass2) warnprt (1, 0); }
|
XOR ACC ',' expression /* -cdk */
{ emit1(0306 | ($1->i_value << 3), 0, $4, 3); if (pass2) warnprt (1, 0); }
|
ADD reg
{ emit1(0200 + ($2 & 0377), $2, 0, 0); if (pass2) warnprt (1, 0); }
|
ADD ACC ',' reg
{ emit1(0200 + ($4 & 0377), $4, 0, 0); }
|
ARITHC reg
{ emit1(0200 + ($1->i_value << 3) + ($2 & 0377), $2, 0, 0); if (pass2) warnprt (1, 0); }
|
ARITHC ACC ',' reg
{ emit1(0200 + ($1->i_value << 3) + ($4 & 0377), $4, 0, 0); }
|
LOGICAL reg
{ emit1(0200 + ($1->i_value << 3) + ($2 & 0377), $2, 0, 0); }
|
AND reg
{ emit1(0200 + ($1->i_value << 3) + ($2 & 0377), $2, 0, 0); }
|
OR reg
{ emit1(0200 + ($1->i_value << 3) + ($2 & 0377), $2, 0, 0); }
|
XOR reg
{ emit1(0200 + ($1->i_value << 3) + ($2 & 0377), $2, 0, 0); }
|
LOGICAL ACC ',' reg /* -cdk */
{ emit1(0200 + ($1->i_value << 3) + ($4 & 0377), $4, 0, 0); if (pass2) warnprt (1, 0); }
|
AND ACC ',' reg /* -cdk */
{ emit1(0200 + ($1->i_value << 3) + ($4 & 0377), $4, 0, 0); if (pass2) warnprt (1, 0); }
|
OR ACC ',' reg /* -cdk */
{ emit1(0200 + ($1->i_value << 3) + ($4 & 0377), $4, 0, 0); if (pass2) warnprt (1, 0); }
|
XOR ACC ',' reg /* -cdk */
{ emit1(0200 + ($1->i_value << 3) + ($4 & 0377), $4, 0, 0); if (pass2) warnprt (1, 0); }
|
SHIFT reg
{
if (suggest_optimise && pass2 && ($2 & 0377) == 7 && $1->i_value <= 4)
warnprt ($1->i_value + 4, 0);
if (pass2 && $1->i_value == 6)
warnprt (1, 0);
emit1(0145400 + ($1->i_value << 3) + ($2 & 0377), $2, 0, 0);
}
|
INCDEC reg
{ emit1($1->i_value + (($2 & 0377) << 3) + 4, $2, 0, 0); }
|
ARITHC HL ',' bcdehlsp
{ if ($1->i_value == 1)
emit(2,0355,0112+$4);
else
emit(2,0355,0102+$4);
}
|
ADD mar ',' bcdesp
{ emitdad($2,$4); }
|
ADD mar ',' mar
{
if ($2 != $4) {
fprintf(stderr,"ADD mar, mar error\n");
err[fflag]++;
}
emitdad($2,$4);
}
|
INCDEC evenreg
{ emit1(($1->i_value << 3) + ($2 & 0377) + 3, $2, 0, 1); }
|
PUSHPOP pushable
{ emit1($1->i_value + ($2 & 0377), $2, 0, 1); }
|
BIT expression ',' reg
{
if ($2 < 0 || $2 > 7)
err[vflag]++;
emit1($1->i_value + (($2 & 7) << 3) + ($4 & 0377), $4, 0, 0);
}
|
JP condition ',' expression
{ emitjp(0302 + $2, $4); }
|
JP '(' mar ')'
{ emit1(0351, $3, 0, 1); }
|
JP mar
{ emit1(0351, $2, 0, 1); if (pass2) warnprt (1, 0); }
|
CALL condition ',' expression
{ emit(3, 0304 + $2, $4, $4 >> 8); }
|
JR expression
{ emitjr(030,$2); }
|
JR spcondition ',' expression
{ emitjr($1->i_value + $2, $4); }
|
DJNZ expression
{ emitjr($1->i_value, $2); }
|
RET
{ emit(1, $1->i_value); }
|
RET condition
{ emit(1, 0300 + $2); }
|
LD reg ',' reg
{
if (($2 & 0377) == 6 && ($4 & 0377) == 6) {
fprintf(stderr,"LD reg, reg error\n");
err[fflag]++;
}
emit1(0100 + (($2 & 7) << 3) + ($4 & 7),$2 | $4, 0, 0);
}
|
LD reg ',' noparenexpr
{
if (suggest_optimise && pass2 && $4 == 0 && ($2 & 0377) == 7)
warnprt (3, 0);
emit1(6 + (($2 & 0377) << 3), $2, $4, 2);
}
|
LD reg ',' '(' RP ')'
{ if ($2 != 7) {
fprintf(stderr,"LD reg, (RP) error\n");
err[fflag]++;
}
else emit(1, 012 + $5->i_value);
}
|
LD reg ',' parenexpr
{
if ($2 != 7) {
fprintf(stderr,"LD reg, (expr) error\n");
err[fflag]++;
}
else emit(3, 072, $4, $4 >> 8);
}
|
LD '(' RP ')' ',' ACC
{ emit(1, 2 + $3->i_value); }
|
LD parenexpr ',' ACC
{ emit(3, 062, $2, $2 >> 8); }
|
LD reg ',' MISCREG
{
if ($2 != 7) {
fprintf(stderr,"LD reg, MISCREG error\n");
err[fflag]++;
}
else emit(2, 0355, 0127 + $4->i_value);
}
|
LD MISCREG ',' ACC
{ emit(2, 0355, 0107 + $2->i_value); }
|
LD evenreg ',' lxexpression
{ emit1(1 + ($2 & 060), $2, $4, 5); }
|
LD evenreg ',' parenexpr
{
if (($2 & 060) == 040)
emit1(052, $2, $4, 5);
else
emit(4, 0355, 0113 + $2, $4, $4 >> 8);
}
|
LD parenexpr ',' evenreg
{
if (($4 & 060) == 040)
emit1(042, $4, $2, 5);
else
emit(4, 0355, 0103 + $4, $2, $2 >> 8);
}
|
LD evenreg ',' mar
{
if ($2 != 060) {
fprintf(stderr,"LD evenreg error\n");
err[fflag]++;
}
else
emit1(0371, $4, 0, 1);
}
|
EX RP ',' HL
{
if ($2->i_value != 020) {
fprintf(stderr,"EX RP, HL error\n");
err[fflag]++;
}
else
emit(1, 0353);
}
|
EX AF ',' AF setqf '\'' clrqf
{ emit(1, 010); }
|
EX '(' SP ')' ',' mar
{ emit1(0343, $6, 0, 1); }
|
IN realreg ',' parenexpr
{
if ($2 != 7) {
fprintf(stderr,"IN reg, (expr) error\n");
err[fflag]++;
}
else {
if ($4 < 0 || $4 > 255)
err[vflag]++;
emit(2, $1->i_value, $4);
}
}
|
IN realreg ',' '(' C ')'
{ emit(2, 0355, 0100 + ($2 << 3)); }
|
IN F ',' '(' C ')'
{ emit(2, 0355, 0160); }
|
OUT parenexpr ',' ACC
{
if ($2 < 0 || $2 > 255)
err[vflag]++;
emit(2, $1->i_value, $2);
}
|
OUT '(' C ')' ',' realreg
{ emit(2, 0355, 0101 + ($6 << 3)); }
|
IM expression
{
if ($2 > 2 || $2 < 0)
err[vflag]++;
else
emit(2, $1->i_value >> 8, $1->i_value + (($2 + ($2 > 0)) << 3));
}
|
PHASE expression
{
if (phaseflag) {
err[oflag]++;
} else {
phaseflag = 1;
phdollar = dollarsign;
dollarsign = $2;
phbegin = dollarsign;
}
}
|
DEPHASE
{
if (!phaseflag) {
err[oflag]++;
} else {
phaseflag = 0;
dollarsign = phdollar + dollarsign - phbegin;
}
}
|
ORG expression
{
if (not_seen_org)
first_org_store=yyvsp[0].ival;
not_seen_org=0;
if (phaseflag) {
err[oflag]++;
dollarsign = phdollar + dollarsign - phbegin;
phaseflag = 0;
}
if ($2-dollarsign) {
flushbin();
if (pass2 && !output_hex && dollarsign != 0) {
if (yyvsp[0].ival < dollarsign) {
err[orgflag]++;
} else {
int f;
for (f=0;f<(yyvsp[0].ival - dollarsign);f++)
fputc(0, fbuf);
}
}
olddollar = $2;
dollarsign = $2;
}
}
|
DEFB db.list
|
DEFW dw.list
|
ENDM
;
parm.list:
|
parm.element
|
parm.list ',' parm.element
;
parm.element:
UNDECLARED
{
$1->i_token = MPARM;
if (parm_number >= PARMMAX)
error("Too many parameters");
$1->i_value = parm_number++;
}
;
arg.list:
/* empty */
|
arg.element
|
arg.list ',' arg.element
;
arg.element:
ARG
{
cp = malloc(strlen(tempbuf)+1);
#ifdef M_DEBUG
fprintf (stderr, "[Arg%u(%p): %s]\n", parm_number, cp, tempbuf);
#endif
est2[parm_number++] = cp;
strcpy(cp, tempbuf);
}
;
reg:
realreg
|
mem
;
realreg:
REGNAME
{
$$ = $1->i_value;
}
|
ACC
{
$$ = $1->i_value;
}
|
C
{
$$ = $1->i_value;
}
;
mem:
'(' HL ')'
{
$$ = 6;
}
|
'(' INDEX expression ')'
{
disp = $3;
$$ = ($2->i_value & 0177400) | 6;
}
|
'(' INDEX ')'
{
disp = 0;
$$ = ($2->i_value & 0177400) | 6;
}
;
evenreg:
bcdesp
|
mar
;
pushable:
RP
{
$$ = $1->i_value;
}
|
AF
{
$$ = $1->i_value;
}
|
mar
;
bcdesp:
RP
{
$$ = $1->i_value;
}
|
SP
{
$$ = $1->i_value;
}
;
bcdehlsp:
bcdesp
|
HL
{
$$ = $1->i_value;
}
;
mar:
HL
{
$$ = $1->i_value;
}
|
INDEX
{
$$ = $1->i_value;
}
;
condition:
spcondition
|
COND
{
$$ = $1->i_value;
}
;
spcondition:
SPCOND
{
$$ = $1->i_value;
}
|
C
{ $$ = 030; }
;
db.list:
db.list.element
|
db.list ',' db.list.element
;
db.list.element:
TWOCHAR
{
dataemit(2, $1, $1>>8);
}
|
STRING
{
cp = $1;
while (*cp != '\0')
dataemit(1,*cp++);
}
|
expression
{
if ($1 < -128 || $1 > 255)
err[vflag]++;
dataemit(1, $1 & 0377);
}
;
dw.list:
dw.list.element
|
dw.list ',' dw.list.element
;
dw.list.element:
expression
{
dataemit(2, $1, $1>>8);
}
;
lxexpression:
noparenexpr
|
TWOCHAR
;
expression:
parenexpr
|
noparenexpr
;
parenexpr:
'(' expression ')'
{ $$ = $2; }
;
noparenexpr:
LABEL
{ $$ = $1->i_value; $1->i_uses++ ; }
|
NUMBER
|
ONECHAR
|
EQUATED
{ $$ = $1->i_value; $1->i_uses++ ; }
|
WASEQUATED
{
$$ = $1->i_value; $1->i_uses++ ;
if ($1->i_equbad) {
/* forward reference to equ with a forward
* reference of its own cannot be resolved
* in two passes. -rjm
*/
err[frflag]++;
}
}
|
DEFLED
{ $$ = $1->i_value; $1->i_uses++ ; }
|
'$'
{ $$ = dollarsign; }
|
UNDECLARED
{
err[uflag]++;
equ_bad_label=1;
$$ = 0;
}
|
MULTDEF
{ $$ = $1->i_value; }
|
expression '+' expression
{ $$ = $1 + $3; }
|
expression '-' expression
{ $$ = $1 - $3; }
|
expression '/' expression
{ if ($3 == 0) err[eflag]++; else $$ = $1 / $3; }
|
expression '*' expression
{ $$ = $1 * $3; }
|
expression '%' expression
{ if ($3 == 0) err[eflag]++; else $$ = $1 % $3; }
|
expression MOD expression
{ if ($3 == 0) err[eflag]++; else $$ = $1 % $3; }
|
expression '&' expression
{ $$ = $1 & $3; }
|
expression AND expression
{ $$ = $1 & $3; }
|
expression '|' expression
{ $$ = $1 | $3; }
|
expression OR expression
{ $$ = $1 | $3; }
|
expression '^' expression
{ $$ = $1 ^ $3; }
|
expression XOR expression
{ $$ = $1 ^ $3; }
|
expression SHL expression
{ $$ = $1 << $3; }
|
expression SHR expression
{ $$ = (($1 >> 1) & 077777) >> ($3 - 1); }
|
expression '<' expression
{ $$ = $1 < $3; }
|
expression '=' expression
{ $$ = $1 == $3; }
|
expression '>' expression
{ $$ = $1 > $3; }
|
expression LT expression
{ $$ = $1 < $3; }
|
expression EQ expression
{ $$ = $1 == $3; }
|
expression GT expression
{ $$ = $1 > $3; }
|
expression LE expression
{ $$ = $1 <= $3; }
|
expression GE expression
{ $$ = $1 >= $3; }
|
expression NE expression
{ $$ = $1 != $3; }
|
'[' expression ']'
{ $$ = $2; }
|
NOT expression
{ $$ = ~$2; }
|
'~' expression
{ $$ = ~$2; }
|
'!' expression
{ $$ = !$2; }
|
'+' expression %prec UNARY
{ $$ = $2; }
|
'-' expression %prec UNARY
{ $$ = -$2; }
;
symbol:
UNDECLARED
|
LABEL
|
MULTDEF
|
EQUATED
|
WASEQUATED
|
DEFLED
;
al:
{ int i;
if (expptr >= MAXEXP)
error("Macro expansion level");
est2 = (char **) malloc((PARMMAX +4) * sizeof(char *));
expstack[expptr] = (char *)est2 ;
for (i=0; i<PARMMAX; i++)
est2[i] = 0;
arg_flag++;
}
;
arg_on:
{ arg_flag++; }
;
arg_off:
{ arg_flag = 0; }
;
setqf:
{ quoteflag++; }
;
clrqf:
{ quoteflag = 0; }
;
%%
#define F_END 0
#define OTHER 1
#define SPACE 2
#define DIGIT 3
#define LETTER 4
#define STARTER 5
#define HEXIN 6
/*
* This is the table of character classes. It is used by the lexical
* analyser. (yylex())
*/
char charclass[] = {
F_END, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER,
OTHER, SPACE, OTHER, OTHER, OTHER, SPACE, OTHER, OTHER,
OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER,
OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER,
SPACE, OTHER, OTHER, HEXIN, HEXIN, OTHER, HEXIN, OTHER,
OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER, OTHER,
DIGIT, DIGIT, DIGIT, DIGIT, DIGIT, DIGIT, DIGIT, DIGIT,
DIGIT, DIGIT, OTHER, OTHER, OTHER, OTHER, OTHER, STARTER,
STARTER,LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
LETTER, LETTER, LETTER, OTHER, OTHER, OTHER, OTHER, LETTER,
OTHER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER, LETTER,
LETTER, LETTER, LETTER, OTHER, OTHER, OTHER, OTHER, OTHER,
};
/*
* the following table tells which characters are parts of numbers.
* The entry is non-zero for characters which can be parts of numbers.
*/
char numpart[] = {
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 0, 0, 0, 0, 0, 0,
0, 'A', 'B', 'C', 'D', 'E', 'F', 0,
'H', 0, 0, 0, 0, 0, 0, 'O',
0, 'Q', 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 'a', 'b', 'c', 'd', 'e', 'f', 0,
'h', 0, 0, 0, 0, 0, 0, 'o',
0, 'q', 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0};
/*
* the following table is a list of assembler mnemonics;
* for each mnemonic the associated machine-code bit pattern
* and symbol type are given.
*/
struct item keytab[] = {
{"a", 7, ACC, 0},
{"adc", 1, ARITHC, 0},
{"add", 0, ADD, 0},
{"af", 060, AF, 0},
{"and", 4, AND, 0},
{"ascii",0, DEFB, 0},
{"b", 0, REGNAME, 0},
{"bc", 0, RP, 0},
{"bit", 0145500,BIT, 0},
{"block",0, DEFS, 0},
{"byte",0, DEFB, 0},
{"c", 1, C, 0},
{"call",0315, CALL, 0},
{"ccf", 077, NOOPERAND, 0},
{"cmp", 7, LOGICAL, 0}, /* -cdk */
{"cond",0, IF, 0},
{"cp", 7, LOGICAL, 0},
{"cpd", 0166651,NOOPERAND, 0},
{"cpdr",0166671,NOOPERAND, 0},
{"cpi", 0166641,NOOPERAND, 0},
{"cpir",0166661,NOOPERAND, 0},
{"cpl", 057, NOOPERAND, 0},
{"d", 2, REGNAME, 0},
{"daa", 0047, NOOPERAND, 0},
{"db", 0, DEFB, 0},
{"de", 020, RP, 0},
{"dec", 1, INCDEC, 0},
{"defb",0, DEFB, 0},
{"defl",0, DEFL, 0},
{"defm",0, DEFB, 0},
{"defs",0, DEFS, 0},
{"defw",0, DEFW, 0},
{"dephase",0, DEPHASE, 0},
{"di", 0363, NOOPERAND, 0},
{"djnz",020, DJNZ, 0},
{"ds", 0, DEFS, 0},
{"dw", 0, DEFW, 0},
{"e", 3, REGNAME, 0},
{"ei", 0373, NOOPERAND, 0},
{"eject",1, LIST, 0},
{"elist",3, LIST, 0},
{"else",0, ELSE, 0},
{"end", 0, END, 0},
{"endc",0, ENDIF, 0},
{"endif",0, ENDIF, 0},
{"endm", 0, ENDM, 0},
{"eq", 0, EQ, 0},
{"equ", 0, EQU, 0},
{"ex", 0, EX, 0},
{"exx", 0331, NOOPERAND, 0},
{"f", 0, F, 0},
{"flist",4, LIST, 0},
{"ge", 0, GE, 0},
{"glist",5, LIST, 0},
{"gt", 0, GT, 0},
{"h", 4, REGNAME, 0},
{"halt",0166, NOOPERAND, 0},
{"hl", 040, HL, 0},
{"i", 0, MISCREG, 0},
{"if", 0, IF, 0},
{"im", 0166506,IM, 0},
{"in", 0333, IN, 0},
{"inc", 0, INCDEC, 0},
{"include", 3, ARGPSEUDO, 0},
{"ind", 0166652,NOOPERAND, 0},
{"indr",0166672,NOOPERAND, 0},
{"ini", 0166642,NOOPERAND, 0},
{"inir",0166662,NOOPERAND, 0},
{"ix", 0156440,INDEX, 0},
{"iy", 0176440,INDEX, 0},
{"jmp", 0303, JP, 0}, /* -cdk */
{"jp", 0303, JP, 0},
{"jr", 040, JR, 0},
{"l", 5, REGNAME, 0},
{"ld", 0, LD, 0},
{"ldd", 0166650,NOOPERAND, 0},
{"lddr",0166670,NOOPERAND, 0},
{"ldi", 0166640,NOOPERAND, 0},
{"ldir",0166660,NOOPERAND, 0},
{"le", 0, LE, 0},
{"list",0, LIST, 0},
{"lt", 0, LT, 0},
{"m", 070, COND, 0},
{"macro",0, MACRO, 0},
{"max", 1, MINMAX, 0},
{"min", 0, MINMAX, 0},
{"mlist",6, LIST, 0},
{"mod", 0, MOD, 0},
{"nc", 020, SPCOND, 0},
{"ne", 0, NE, 0},
{"neg", 0166504,NOOPERAND, 0},
{"nolist",-1, LIST, 0},
{"nop", 0, NOOPERAND, 0},
{"not", 0, NOT, 0},
{"nv", 040, COND, 0},
{"nz", 0, SPCOND, 0},
{"or", 6, OR, 0},
{"org", 0, ORG, 0},
{"otdr",0166673,NOOPERAND, 0},
{"otir",0166663,NOOPERAND, 0},
{"out", 0323, OUT, 0},
{"outd",0166653,NOOPERAND, 0},
{"outi",0166643,NOOPERAND, 0},
{"p", 060, COND, 0},
{"pe", 050, COND, 0},
{"phase",0, PHASE, 0},
{"po", 040, COND, 0},
{"pop", 0301, PUSHPOP, 0},
{"push", 0305, PUSHPOP, 0},
{"r", 010, MISCREG, 0},
{"read", 3, ARGPSEUDO, 0},
{"res", 0145600,BIT, 0},
{"ret", 0311, RET, 0},
{"reti",0166515,NOOPERAND, 0},
{"retn",0166505,NOOPERAND, 0},
{"rl", 2, SHIFT, 0},
{"rla", 027, NOOPERAND, 0},
{"rlc", 0, SHIFT, 0},
{"rlca",07, NOOPERAND, 0},
{"rld", 0166557,NOOPERAND, 0},
{"rmem",0, DEFS, 0},
{"rr", 3, SHIFT, 0},
{"rra", 037, NOOPERAND, 0},
{"rrc", 1, SHIFT, 0},
{"rrca",017, NOOPERAND, 0},
{"rrd", 0166547,NOOPERAND, 0},
{"rst", 0307, RST, 0},
{"rsym",1, ARGPSEUDO, 0},
{"sbc", 3, ARITHC, 0},
{"scf", 067, NOOPERAND, 0},
{"set", 0145700,BIT, 0},
{"shl", 0, SHL, 0},
{"shr", 0, SHR, 0},
{"sla", 4, SHIFT, 0},
{"sll", 6, SHIFT, 0}, /* Undocumented */
{"sp", 060, SP, 0},
{"space",2, LIST, 0},
{"sra", 5, SHIFT, 0},
{"srl", 7, SHIFT, 0},
{"sub", 2, LOGICAL, 0},
{"text",0, DEFB, 0},
{"title",0, ARGPSEUDO, 0},
{"v", 050, COND, 0},
{"word",0, DEFW, 0},
{"wsym",2, ARGPSEUDO, 0},
{"xor", 5, XOR, 0},
{"z", 010, SPCOND, 0}
};
/*
* user-defined items are tabulated in the following table.
*/
struct item itemtab[ITEMTABLESIZE];
struct item *itemmax = itemtab+ITEMTABLESIZE;
/*
* lexical analyser, called by yyparse.
*/
int yylex()
{
int c;
char *p;
int radix;
int limit;
int leadinghex = 0;
if (arg_flag)
return(getarg());
loop switch(charclass[c = nextchar()]) {
case F_END:
if (expptr) {
popsi();
continue;
} else return(0);
case SPACE:
break;
case LETTER:
case STARTER:
p = tempbuf;
do {
if (p >= tempmax)
error(symlong);
*p++ = (c >= 'A' && c <= 'Z') ? c + 'a' - 'A' : c;
while ((c = nextchar()) == '$')
;
} while (charclass[c]==LETTER || charclass[c]==DIGIT);
if (p - tempbuf > MAXSYMBOLSIZE)
{
if (pass2) warnprt (0, 1);
p = tempbuf + MAXSYMBOLSIZE;
}
*p++ = '\0';
peekc = c;
return(tokenofitem(UNDECLARED));
case HEXIN:
{
int corig = c;
if (*ifptr) return (skipline(c));
while ((c = nextchar ()) == '$');
if (!numpart[c])
{
peekc = c;
return (corig);
}
leadinghex = 1;
/* fall through */
}
case DIGIT:
if (*ifptr) return (skipline(c));
p = tempbuf;
do {
if (p >= tempmax)
error(symlong);
*p++ = (c >= 'A' && c <= 'Z') ? c + 'a' - 'A' : c;
while ((c = nextchar()) == '$');
}
while(numpart[c]);
peekc = c;
if (leadinghex)
{
*p++ = 'h';
}
*p-- = '\0';
switch(*p) {
case 'o':
case 'q':
radix = 8;
limit = 020000;
*p = '\0';
break;
case 'd':
radix = 10;
limit = 6553;
*p = '\0';
break;
case 'h':
radix = 16;
limit = 010000;
*p = '\0';
break;
case 'b':
radix = 2;
limit = 077777;
*p = '\0';
break;
default:
radix = 10;
limit = 6553;
p++;
break;
}
/*
* tempbuf now points to the number, null terminated
* with radix 'radix'.
*/
yylval.ival = 0;
p = tempbuf;
do {
c = *p - (*p > '9' ? ('a' - 10) : '0');
if (c >= radix)
{
err[iflag]++;
yylval.ival = 0;
break;
}
if (yylval.ival < limit ||
(radix == 10 && yylval.ival == 6553 && c < 6) ||
(radix == 2 && yylval.ival == limit))
yylval.ival = yylval.ival * radix + c;
else {
err[vflag]++;
yylval.ival = 0;
break;
}
}
while(*++p != '\0');
return(NUMBER);
default:
if (*ifptr)
return(skipline(c));
switch(c) {
int corig;
case ';':
return(skipline(c));
case '\'':
if (quoteflag) return('\'');
case '"':
corig = c;
p = tempbuf;
p[1] = 0;
do switch(c = nextchar()) {
case '\0':
case '\n':
err[bflag]++;
goto retstring;
case '\'':
case '"':
if (c == corig && (c = nextchar()) != corig) {
retstring:
peekc = c;
*p = '\0';
if ((p-tempbuf) >2) {
yylval.cval = tempbuf;
return(STRING);
} else if (p-tempbuf == 2) {
p = tempbuf;
yylval.ival = *p++ ;
yylval.ival |= *p<<8;
return(TWOCHAR);
} else {
p = tempbuf;
yylval.ival = *p++;
return(ONECHAR);
}
}
default:
*p++ = c;
} while (p < tempmax);
/*
* if we break out here, our string is longer than
* our input line
*/
error("string buffer overflow");
case '<':
corig = c;
switch (c = nextchar ()) {
case '=':
return LE;
case '<':
return SHL;
case '>':
return NE;
default:
peekc = c;
return corig;
}
/* break; suppress "unreachable" warning for tcc */
case '>':
corig = c;
switch (c = nextchar ()) {
case '=':
return GE;
case '>':
return SHR;
default:
peekc = c;
return corig;
}
/* break; suppress "unreachable" warning for tcc */
case '!':
corig = c;
switch (c = nextchar ()) {
case '=':
return NE;
default:
peekc = c;
return corig;
}
/* break; suppress "unreachable" warning for tcc */
case '=':
corig = c;
switch (c = nextchar ()) {
case '=':
return EQ;
default:
peekc = c;
return corig;
}
/* break; suppress "unreachable" warning for tcc */
default:
return(c);
}
}
}
/*
* return the token associated with the string pointed to by
* tempbuf. if no token is associated with the string, associate
* deftoken with the string and return deftoken.
* in either case, cause yylval to point to the relevant
* symbol table entry.
*/
int tokenofitem(int deftoken)
{
char *p;
struct item * ip;
int i;
int r, l, u, hash;
#ifdef T_DEBUG
fputs("'tokenofitem entry' ", stderr) ;
fputs(tempbuf, stderr) ;
#endif
if (strcmp (tempbuf, "cmp") == 0 ||
strcmp (tempbuf, "jmp") == 0 ||
strcmp (tempbuf, "v") == 0 ||
strcmp (tempbuf, "nv") == 0)
if (pass2) warnprt (1, 1);
/*
* binary search
*/
l = 0;
u = (sizeof keytab/sizeof keytab[0])-1;
while (l <= u) {
i = (l+u)/2;
ip = &keytab[i];
if ((r = strcmp(tempbuf, ip->i_string)) == 0)
goto found;
if (r < 0)
u = i-1;
else
l = i+1;
}
/*
* hash into item table
*/
hash = 0;
p = tempbuf;
while (*p) hash += *p++;
hash %= ITEMTABLESIZE;
ip = &itemtab[hash];
loop {
if (ip->i_token == 0)
break;
if (strcmp(tempbuf, ip->i_string) == 0)
goto found;
if (++ip >= itemmax)
ip = itemtab;
}
if (!deftoken) {
i = 0 ;
goto token_done ;
}
if (++nitems > ITEMTABLESIZE-20)
error("item table overflow");
ip->i_string = malloc(strlen(tempbuf)+1);
ip->i_token = deftoken;
ip->i_uses = 0;
ip->i_equbad = 0;
strcpy(ip->i_string, tempbuf);
found:
if (*ifptr) {
if (ip->i_token == ENDIF) {
i = ENDIF ;
goto token_done ;
}
if (ip->i_token == ELSE) {
/* We must only honour the ELSE if it is not
in a nested failed IF/ELSE */
char forbid = 0;
char *ifstackptr;
for (ifstackptr = ifstack; ifstackptr != ifptr; ++ifstackptr) {
if (*ifstackptr) {
forbid = 1;
break;
}
}
if (!forbid) {
i = ELSE;
goto token_done;
}
}
if (ip->i_token == IF) {
if (ifptr >= ifstmax)
error("Too many ifs");
else *++ifptr = 1;
}
i = skipline(' ');
goto token_done ;
}
yylval.itemptr = ip;
i = ip->i_token;
if (i == EQU) equ_bad_label=0;
token_done:
#ifdef T_DEBUG
fputs("\t'tokenofitem exit'\n", stderr) ;
#endif
return(i) ;
}
/*
* interchange two entries in the item table -- used by custom_qsort
*/
void interchange(int i, int j)
{
struct item *fp, *tp;
struct item temp;
fp = &itemtab[i];
tp = &itemtab[j];
temp.i_string = fp->i_string;
temp.i_value = fp->i_value;
temp.i_token = fp->i_token;
temp.i_uses = fp->i_uses;
temp.i_equbad = fp->i_equbad;
fp->i_string = tp->i_string;
fp->i_value = tp->i_value;
fp->i_token = tp->i_token;
fp->i_uses = tp->i_uses;
fp->i_equbad = tp->i_equbad;
tp->i_string = temp.i_string;
tp->i_value = temp.i_value;
tp->i_token = temp.i_token;
tp->i_uses = temp.i_uses;
tp->i_equbad = temp.i_equbad;
}
/*
* quick sort -- used by putsymtab to sort the symbol table
*/
void custom_qsort(int m, int n)
{
int i, j;
if (m < n) {
i = m;
j = n+1;
loop {
do i++; while(strcmp(itemtab[i].i_string,
itemtab[m].i_string) < 0);
do j--; while(strcmp(itemtab[j].i_string,
itemtab[m].i_string) > 0);
if (i < j) interchange(i, j); else break;
}
interchange(m, j);
custom_qsort(m, j-1);
custom_qsort(j+1, n);
}
}
/*
* get the next character
*/
int nextchar()
{
int c, ch;
static char *earg;
if (peekc != -1) {
c = peekc;
peekc = -1;
return(c);
}
start:
if (earg) {
if (*earg)
return(addtoline(*earg++));
earg = 0;
}
if (expptr) {
if ((ch = getm()) == '\1') { /* expand argument */
ch = getm() - 'A';
if (ch >= 0 && ch < PARMMAX && est[ch])
earg = est[ch];
goto start;
}
if (ch == '\2') { /* local symbol */
ch = getm() - 'A';
if (ch >= 0 && ch < PARMMAX && est[ch]) {
earg = est[ch];
goto start;
}
earg = getlocal(ch, (int)(long)est[TEMPNUM]);
goto start;
}
return(addtoline(ch));
}
ch = getc(now_file) ;
/* if EOF, check for include file */
if (ch == EOF) {
while (ch == EOF && now_in) {
fclose(fin[now_in]) ;
free(src_name[now_in]) ;
now_file = fin[--now_in] ;
ch = getc(now_file) ;
}
if (linein[now_in] < 0) {
lstoff = 1 ;
linein[now_in] = -linein[now_in] ;
} else {
lstoff = 0 ;
}
if (pass2 && iflist()) {
lineout() ;
fprintf(fout, "**** %s ****\n", src_name[now_in]) ;
}
}
if (ch == '\n')
{
linein[now_in]++ ;
}
return(addtoline(ch)) ;
}
/*
* skip to rest of the line -- comments and if skipped lines
*/
int skipline(int ac)
{
int c;
c = ac;
while (c != '\n' && c != '\0')
c = nextchar();
return('\n');
}
void usage()
{
printf(
"zmac " ZMAC_VERSION
#ifdef ZMAC_BETA
ZMAC_BETA
#endif
", a Z80 macro cross-assembler.\n"
"Public domain by Bruce Norskog and others.\n"
"\n"
#ifdef __riscos
"usage: zmac [--help] [--version] [-AbcdefghilLmnOpsStTz]\n"
#else
"usage: zmac [--help] [--version] [-AbcdefghilLmnOpsStz]\n"
#endif
" [-o outfile] [-x listfile] [filename]\n"
"\n"
" --help give this usage help.\n"
" --version report version number.\n"
" -A output AMSDOS binary file rather than default binary file.\n"
" -b don't generate the m/c output at all.\n"
" -c make the listing continuous, i.e. don't generate any\n"
" page breaks or page headers. (This is the default.)\n"
" -d make the listing discontinuous.\n"
" -e omit the `error report' section in the listing.\n"
" -f list instructions not assembled due to `if' expressions being\n"
" false. (Normally these are not shown in the listing.)\n"
" -g list only the first line of equivalent hex for a source line.\n"
" -h output CP/M-ish Intel hex format (using extension `.hex')\n"
" rather than default binary file (extension `.bin').\n"
" -i don't list files included with `include'.\n"
" -l don't generate a listing at all.\n"
" -L generate listing; overrides any conflicting options.\n"
" -m list macro expansions.\n"
" -n omit line numbers from listing.\n"
" -o assemble output to `outfile'.\n"
" -O suggest possible optimisations (as warnings).\n"
" -p use linefeeds for page break in listing rather than ^L.\n"
" -s omit the symbol table from the listing.\n"
" -S show relevant line when reporting errors.\n"
" -t give terse (single-letter) error codes in listing.\n"
#ifdef __riscos
" -T enable DDE throwback for reporting warnings and errors.\n"
#endif
" -x generate listing to `listfile' (`-' for stdout).\n"
" -z accept 8080-compatible instructions only; flag any\n"
" Z80-specific ones as errors.\n");
}
int main(int argc, char *argv[])
{
struct item *ip;
int i, c;
#ifdef ZMAC_BETA
printf ("*** THIS IS A BETA VERSION; NOT FOR GENERAL DISTRIBUTION ***\n");
#endif
if(argc==1)
usage(),exit(0);
if(argc>=2) {
if(strcmp(argv[1],"--help")==0)
usage(),exit(0);
else if(strcmp(argv[1],"--version")==0)
puts("zmac " ZMAC_VERSION
#ifdef ZMAC_BETA
ZMAC_BETA
#endif
),exit(0);
}
fout = stdout ;
fin[0] = stdin ;
now_file = stdin ;
*bin = *listf = 0;
optnerr = 0;
while((c = getoptn(argc,argv,
#ifdef __riscos
"AbcdefghilLmno:OpsStTx:z"
#else
"AbcdefghilLmno:OpsStx:z"
#endif
)) != EOF) {
switch(c) {
case 'A': /* AMSDOS binary -mep */
output_amsdos = 1;
output_hex = 0;
break;
case 'b': /* no binary */
bopt = 0;
break;
case 'c': /* continuous listing */
continuous_listing = 1;
break;
case 'd': /* discontinuous listing */
continuous_listing = 0;
break;
case 'e': /* error list only */
eopt = 0;
edef = 0;
break;
case 'f': /* print if skipped lines */
fopt++;
fdef++;
break;
case 'g': /* do not list extra code */
gopt = 0;
gdef = 0;
break;
case 'h': /* output .hex not .bin -rjm */
output_hex = 1;
output_amsdos = 0;
break;
case 'i': /* do not list include files */
iopt = 1 ;
break;
case 'l': /* no list */
lopt++;
break;
case 'L': /* force listing of everything */
lston++;
break;
case 'm': /* print macro expansions */
mdef++;
mopt++;
break;
case 'n': /* put line numbers off */
nopt-- ;
break;
case 'o': /* specify m/c output file */
strcpy(bin, optnarg);
break;
case 'O': /* suggest optimisations */
suggest_optimise = 1;
break;
case 'p': /* put out four \n's for eject */
popt-- ;
break;
case 's': /* don't produce a symbol list */
sopt++;
break;
case 'S': /* show line which caused error */
show_error_line = 1;
break;
case 't': /* terse error messages in listing */
terse_lst_errors = 1;
break;
#ifdef __riscos
case 'T': /* RISC OS throwback -mep */
riscos_thbk = 1;
break;
#endif
case 'x': /* specify listing file */
if(strcmp(optnarg, "-") == 0)
oldoopt++; /* list to stdout (old `-o') */
else
strcpy(listf, optnarg);
break;
case 'z': /* 8080-compatible ops only */
output_8080_only = 1;
break;
case '?':
default: /* error */
justerror("Unknown option or missing argument");
break;
}
}
if(optnind != argc-1) justerror("Missing, extra or mispositioned argument");
atexit (doatexit);
sourcef = argv[optnind];
strcpy(src, sourcef);
if ((now_file = fopen(src, "r")) == NULL)
{
/* If filename has no pre-existing suffix, then try .z */
suffix_if_none (src, "z");
if ((now_file = fopen(src, "r")) == NULL)
fileerror("Cannot open source file", src);
}
now_in = 0 ;
fin[now_in] = now_file ;
src_name[now_in] = src ;
#ifdef __riscos
riscos_set_csd(src); /* -mep */
#endif
/* If we haven't got a bin file filename, then create one from the
* source filename (.hex extension if option -h is specified).
*/
if (*bin == 0) {
strcpy(bin, sourcef);
if (output_hex)
suffix(bin,"hex");
else
suffix(bin,"bin");
}
if (bopt)
if (( fbuf = fopen(bin, output_hex ? "w" : "wb")) == NULL)
fileerror("Cannot create binary file", bin);
if (output_amsdos)
for(i=0; i<128; i++)
putc(0,fbuf); /* -mep */
if (!lopt && !oldoopt) {
/* If we've not got a filename for the listing file
* (-x option) then create one from the source filename
* (.lst extension)
*/
if( *listf == 0 ) {
strcpy(listf, sourcef);
suffix(listf,"lst");
}
if ((fout = fopen(listf, "w")) == NULL)
fileerror("Cannot create list file", listf);
} else
fout = stdout ;
strcpy(mtmp, sourcef);
suffix(mtmp,"tmp");
mfile = mfopen(mtmp,"w+b") ;
if (mfile == NULL) {
fileerror("Cannot create temp file", mtmp);
}
/*
* get the time
*/
time(&now);
timp = ctime(&now);
timp[16] = 0;
timp[24] = 0;
title = sourcef;
/*
* pass 1
*/
#ifdef DEBUG
fputs("DEBUG-pass 1\n", stderr) ;
#endif
setvars();
yyparse();
pass2++;
ip = &itemtab[-1];
while (++ip < itemmax) {
/* reset use count */
ip->i_uses = 0 ;
/* set macro names, equated and defined names */
switch (ip->i_token) {
case MNAME:
ip->i_token = OLDMNAME;
break;
case EQUATED:
ip->i_token = WASEQUATED;
break;
case DEFLED:
ip->i_token = UNDECLARED;
break;
}
}
setvars();
fseek(now_file, (long)0, 0);
#ifdef DEBUG
fputs("DEBUG- pass 2\n", stderr) ;
#endif
yyparse();
if (bopt) {
flushbin();
if (output_hex) {
putc(':', fbuf);
if (xeq_flag) {
puthex(0, fbuf);
puthex(xeq >> 8, fbuf);
puthex(xeq, fbuf);
puthex(1, fbuf);
puthex(255-(xeq >> 8)-xeq, fbuf);
} else
for (i = 0; i < 10; i++)
putc('0', fbuf);
putc('\n', fbuf);
}
if (output_amsdos) {
char leafname[] = "FILENAMEBIN";
unsigned int chk;
unsigned int filelen = dollarsign - first_org_store;
if (filelen & 0x7f)
{
putc (0x1a, fbuf); /* CP/M EOF char */
}
rewind(fbuf);
chk=0;
putc(0,fbuf);
for(i=0;i<11;i++) {
putc(leafname[i],fbuf);
chk+=leafname[i];
}
for(i=0;i<6;i++)
putc(0,fbuf);
putc(2,fbuf); /* Unprotected binary */
chk+=2;
putc(0,fbuf);
putc(0,fbuf);
putc(first_org_store & 0xFF,fbuf);
chk+=first_org_store & 0xFF;
putc(first_org_store >> 8,fbuf);
chk+=first_org_store >> 8;
putc(0,fbuf);
putc(filelen & 0xFF,fbuf);
chk+=filelen & 0xFF;
putc(filelen >> 8,fbuf);
chk+=filelen >> 8;
/* Next bit should be entry address really */
putc(first_org_store & 0xFF,fbuf);
chk+=first_org_store & 0xFF;
putc(first_org_store >> 8,fbuf);
chk+=first_org_store >> 8;
for(i=28;i<64;i++)
putc(0,fbuf);
putc(filelen & 0xFF,fbuf);
chk+=filelen & 0xFF;
putc(filelen >> 8,fbuf);
chk+=filelen >> 8;
putc(0,fbuf); /* this would be used if length>64K */
putc(chk & 0xFF,fbuf);
putc(chk >> 8,fbuf);
}
fflush(fbuf);
}
if (!lopt)
fflush(fout);
if (*writesyms)
outsymtab(writesyms);
if (eopt)
erreport();
if (!lopt && !sopt)
putsymtab();
if (!lopt) {
eject();
fflush(fout);
}
exit(had_errors);
return(had_errors); /* main () does return int, after all... */
}
void doatexit (void)
{
#ifdef __riscos
if (riscos_throwback_started)
{
_swix(DDEUtils_ThrowbackEnd,0);
}
_swix(DDEUtils_Prefix,1,0); /* Unset CSD */
#endif
}
/*
* set some data values before each pass
*/
void setvars()
{
int i;
peekc = -1;
linein[now_in] = linecnt = 0;
exp_number = 0;
emitptr = emitbuf;
lineptr = linebuf;
ifptr = ifstack;
expifp = expif;
*ifptr = 0;
dollarsign = 0;
olddollar = 0;
phaseflag = 0;
for (i=0; i<FLAGS; i++) err[i] = 0;
}
/*
* print out an error message and die
*/
void error(char *as)
{
*linemax = 0;
fprintf(fout, "%s\n", linebuf);
fflush(fout);
fprintf(stderr, "%s\n", as) ;
exit(1);
}
/*
* alternate version
*/
void fileerror(char *as,char *filename)
{
*linemax = 0;
if (fout != NULL && fout != stdout)
fprintf(fout, "%s\n", linebuf);
fflush(fout);
fprintf(stderr, "%s `%s'\n", as, filename) ;
exit(1);
}
/*
* alternate alternate version
*/
void justerror(char *as)
{
fprintf(stderr, "%s\n", as) ;
exit(1);
}
/*
* output the symbol table
*/
void putsymtab()
{
struct item *tp, *fp;
int i, j, k, t, rows;
char c, c1 ;
if (!nitems)
return;
/* compact the table so unused and UNDECLARED entries are removed */
tp = &itemtab[-1];
for (fp = itemtab; fp<itemmax; fp++) {
if (fp->i_token == UNDECLARED) {
nitems--;
continue;
}
if (fp->i_token == 0)
continue;
tp++;
if (tp != fp) {
tp->i_string = fp->i_string;
tp->i_value = fp->i_value;
tp->i_token = fp->i_token;
tp->i_uses = fp->i_uses ;
tp->i_equbad = fp->i_equbad ;
}
}
tp++;
tp->i_string = "{";
/* sort the table */
custom_qsort(0, nitems-1);
title = "** Symbol Table **";
rows = (nitems+3) / 3;
if (rows+5+line > 60)
eject();
lineout();
fprintf(fout,"\n\n\nSymbol Table:\n\n");
line += 4;
for (i=0; i<rows; i++) {
for(j=0; j<3; j++) {
k = rows*j+i;
if (k < nitems) {
tp = &itemtab[k];
t = tp->i_token;
c = ' ' ;
if (t == EQUATED || t == DEFLED)
c = '=' ;
if (tp->i_uses == 0)
c1 = '+' ;
else
c1 = ' ' ;
fprintf(fout, "%-15s%c%4x%c ",
tp->i_string, c, tp->i_value & 0xffff, c1);
}
}
lineout();
putc('\n', fout);
}
}
/*
* put out error report
*/
void erreport()
{
int i, numerr;
if (line > 50) eject();
lineout();
numerr = 0;
for (i=0; i<FLAGS; i++) numerr += keeperr[i];
if (numerr) {
fputs("\n\n\nError report:\n\n", fout);
fprintf(fout, "%6d error%s\n", DO_PLURAL(numerr));
line += 5;
} else {
fputs("\n\n\nStatistics:\n", fout);
line += 3;
}
for (i=0; i<FLAGS; i++)
if (keeperr[i]) {
lineout();
if (terse_lst_errors)
/* no plural on this because it would
* odd, I think. -rjm
*/
fprintf(fout, "%6d %c -- %s error\n",
keeperr[i], errlet[i], errname[i]);
else
/* can't use DO_PLURAL for this due to
* the %s in the middle... -rjm
*/
fprintf(fout, "%6d %s error%s\n",
keeperr[i], errname[i],
(keeperr[i]==1)?"":"s");
}
if (line > 55) eject();
lineout();
fprintf(fout, "\n%6d\tsymbol%s\n", DO_PLURAL(nitems));
fprintf(fout, "%6d\tbyte%s\n", DO_PLURAL(nbytes));
line += 2;
if (mfptr) {
if (line > 53) eject();
lineout();
fprintf(fout, "\n%6d\tmacro call%s\n", DO_PLURAL(exp_number));
fprintf(fout, "%6d\tmacro byte%s\n", DO_PLURAL(mfptr));
fprintf(fout, "%6d\tinvented symbol%s\n",
DO_PLURAL(invented/2));
line += 3;
}
}
/*
* lexical analyser for macro definition
*/
void mlex()
{
char *p;
int c;
int t;
/*
* move text onto macro file, changing formal parameters
*/
#ifdef M_DEBUG
fprintf(stderr,"enter 'mlex'\n") ;
#endif
inmlex++;
c = nextchar();
loop {
switch(charclass[c]) {
case DIGIT:
while (numpart[c]) {
putm(c);
c = nextchar();
}
continue;
case STARTER:
case LETTER:
t = 0;
p = tempbuf+MAXSYMBOLSIZE+2;
do {
if (p >= tempmax)
error(symlong);
*p++ = c;
if (t < MAXSYMBOLSIZE)
tempbuf[t++] = (c >= 'A' && c <= 'Z') ?
c+'a'-'A' : c;
else
if (pass2) warnprt (0, 1);
c = nextchar();
} while (charclass[c]==LETTER || charclass[c]==DIGIT);
tempbuf[t] = 0;
*p++ = '\0';
p = tempbuf+MAXSYMBOLSIZE+2;
t = tokenofitem(0);
if (t != MPARM) while (*p) putm(*p++);
else {
if (*(yylval.itemptr->i_string) == '?') putm('\2');
else putm('\1');
putm(yylval.itemptr->i_value + 'A');
}
if (t == ENDM) goto done;
continue;
case F_END:
if (expptr) {
popsi();
c = nextchar();
continue;
}
goto done;
default:
if (c == '\n') {
linecnt++;
}
if (c != '\1') putm(c);
c = nextchar();
}
}
/*
* finish off the file entry
*/
done:
while(c != EOF && c != '\n' && c != '\0') c = nextchar();
linecnt++;
putm('\n');
putm('\n');
putm(0);
for (c=0; c<ITEMTABLESIZE; c++)
if (itemtab[c].i_token == MPARM) {
itemtab[c].i_token = UNDECLARED;
}
inmlex = 0;
#ifdef M_DEBUG
fprintf(stderr,"exit 'mlex'\n") ;
#endif
}
/*
* lexical analyser for the arguments of a macro call
*/
int getarg()
{
int c;
char *p;
static int comma;
*tempbuf = 0;
yylval.cval = tempbuf;
while(charclass[c = nextchar()] == SPACE);
switch(c) {
case '\0':
popsi();
case '\n':
case ';':
comma = 0;
return(skipline(c));
case ',':
if (comma) {
comma = 0;
return(',');
}
else {
comma++;
return(ARG);
}
case '\'':
p = tempbuf;
do switch (c = nextchar()) {
case '\0':
case '\n':
peekc = c;
*p = 0;
err[bflag]++;
return(ARG);
case '\'':
if ((c = nextchar()) != '\'') {
peekc = c;
*p = '\0';
comma++;
return(ARG);
}
default:
*p++ = c;
} while (p < tempmax);
error(symlong); /* doesn't return */
default: /* unquoted string */
p = tempbuf;
peekc = c;
do switch(c = nextchar()) {
case '\0':
case '\n':
case '\t':
case ' ':
case ',':
peekc = c;
*p = '\0';
comma++;
return(ARG);
default:
*p++ = c;
} while (p < tempmax);
}
/* in practice it can't get here, but FWIW and to satisfy
* -Wall... -rjm */
error("can't happen - in zmac.y:getarg(), infinite unquoted string!?");
return(0);
}
/*
* Add suffix to pathname if leafname doesn't already have a suffix.
* The suffix passed should not include an extension separator.
* The pathname passed should be in local format.
*/
void suffix_if_none (char *str, char *suff)
{
char *leafname, *extension;
leafname = strrchr (str, OS_DIR_SEP);
if (leafname == NULL)
{
leafname = str;
}
extension = strchr (leafname, OS_EXT_SEP);
if (extension == NULL)
{
size_t leafsize = strlen (leafname);
leafname[leafsize] = OS_EXT_SEP;
strcpy (leafname + leafsize + 1, suff);
}
}
/*
* Add or change pathname suffix.
* The suffix passed should not include an extension separator.
* The pathname passed should be in local format.
* If the leafname passed has more than one extension, the last is changed.
*/
void suffix (char *str, char *suff)
{
char *leafname, *extension;
leafname = strrchr (str, OS_DIR_SEP);
if (leafname == NULL)
{
leafname = str;
}
extension = strrchr (leafname, OS_EXT_SEP);
if (extension == NULL)
{
extension = leafname + strlen (leafname);
}
*extension = OS_EXT_SEP;
strcpy (extension + 1, suff);
}
/*
* Decanonicalise a canonical pathname.
* A canonical pathname uses '/' as the directory separator,
* '.' as the extension separator, ".." as the parent directory,
* "." as the current directory, and a leading '/' as the root
* directory (it would be more user-friendly not to use this!).
*/
void decanonicalise (char *pathname)
{
#if defined (MSDOS)
char *directory = pathname;
/* Just need to change all '/'s to '\'s */
while ((directory = strchr (directory, '/')) != NULL)
{
*directory = OS_DIR_SEP;
}
#elif defined (__riscos)
char *directory = pathname, *dirend;
/* First deal with leading '/' */
if (*directory == '/')
{
memmove (directory + 1, directory, strlen (directory) + 1);
*directory = '$';
++directory;
}
/* Then deal with non-leaf ".."s and "."s */
while (1)
{
dirend = strchr (directory, '/');
if (dirend == NULL)
{
break;
}
*dirend = '\0';
if (strcmp (directory, "..") == 0)
{
*directory = '^';
memmove (directory + 2, directory + 3, strlen (directory + 3) + 1);
dirend = directory + 1;
}
else if (strcmp (directory, ".") == 0)
{
memmove (directory, directory + 2, strlen (directory + 2) + 1);
continue;
}
*dirend = '/';
directory = dirend + 1;
}
directory = pathname;
/* Finally, swap '/' and '.' */
while ((directory = strpbrk (directory, "/.")) != NULL)
{
if (*directory == '/')
{
*directory = OS_DIR_SEP;
}
else
{
*directory = OS_EXT_SEP;
}
++directory;
}
#else
/* Local form is canonical form */
UNUSED (pathname);
#endif
}
/*
* put out a byte to the macro file, keeping the offset
*/
void putm(char c)
{
#ifdef M_DEBUG
fputc (c, stderr);
#endif
mfptr++;
mfputc(c,mfile) ;
}
/*
* get a byte from the macro file
*/
int getm()
{
int ch;
floc++;
ch = mfgetc(mfile) ;
if (ch == EOF) {
ch = 0;
fprintf(stderr,"bad macro read\n") ;
}
return(ch);
}
/*
* pop standard input
*/
void popsi()
{
int i;
if (est)
{
for (i=0; i<PARMMAX; i++) {
if (est[i])
#ifdef M_DEBUG
fprintf (stderr, "[Freeing arg%u(%p)]\n", i, est[i]),
#endif
free(est[i]);
}
floc = est[FLOC];
free(est);
expptr--;
est = expptr ? (char **) expstack[expptr-1] : (char **) 0;
mfseek(mfile, (long)floc, 0);
if (lineptr > linebuf) lineptr--;
}
}
/*
* return a unique name for a local symbol
* c is the parameter number, n is the macro number.
*/
char *getlocal(int c, int n)
{
static char local_label[10];
invented++;
if (c >= 26)
c += 'a' - '0';
sprintf(local_label, "?%c%04d", c+'a', n) ;
return(local_label);
}
/*
* read in a symbol table
*/
void insymtab(char *name)
{
struct stab *t;
int s, i;
FILE *sfile;
t = (struct stab *) tempbuf;
decanonicalise (name);
if ((sfile = fopen(name, "rb")) == NULL)
return;
fread((char *)t, 1, sizeof *t, sfile);
if (t->t_value != SYMMAJIC)
{
fclose (sfile);
return;
}
s = t->t_token;
for (i=0; i<s; i++) {
fread((char *)t, 1, sizeof *t, sfile);
if (tokenofitem(UNDECLARED) != UNDECLARED)
continue;
yylval.itemptr->i_token = t->t_token;
yylval.itemptr->i_value = t->t_value;
if (t->t_token == MACRO)
yylval.itemptr->i_value += mfptr;
}
while ((s = fread(tempbuf, 1, TEMPBUFSIZE, sfile)) > 0) {
mfptr += s;
mfwrite(tempbuf, 1, s, mfile) ;
}
fclose (sfile);
}
/*
* write out symbol table
*/
void outsymtab(char *name)
{
struct stab *t;
struct item *ip;
int i;
FILE *sfile;
t = (struct stab *) tempbuf;
decanonicalise (name);
if ((sfile = fopen(name, "wb")) == NULL)
return;
for (ip=itemtab; ip<itemmax; ip++) {
if (ip->i_token == UNDECLARED) {
ip->i_token = 0;
nitems--;
}
}
copyname(title, (char *)t);
t->t_value = SYMMAJIC;
t->t_token = nitems;
fwrite((char *)t, 1, sizeof *t, sfile);
for (ip=itemtab; ip<itemmax; ip++) {
if (ip->i_token != 0) {
t->t_token = ip->i_token;
t->t_value = ip->i_value;
copyname(ip->i_string, (char *)t);
fwrite((char *)t, 1, sizeof *t, sfile);
}
}
mfseek(mfile, (long)0, 0);
while((i = mfread(tempbuf, 1, TEMPBUFSIZE, mfile) ) > 0)
fwrite(tempbuf, 1, i, sfile);
fclose (sfile);
}
/*
* copy a name into the symbol file
*/
void copyname(char *st1, char *st2)
{
char *s1, *s2;
int i;
i = (MAXSYMBOLSIZE+2) & ~01;
s1 = st1;
s2 = st2;
while((*s2++ = *s1++)) i--; /* -Wall-ishness :-) -RJM */
while(--i > 0) *s2++ = '\0';
}
/* get the next source file */
void next_source(char *sp)
{
if(now_in == NEST_IN -1)
error("Too many nested includes") ;
decanonicalise (sp);
if ((now_file = fopen(sp, "r")) == NULL) {
#ifdef __riscos
if (riscos_thbk)
riscos_throwback(2,src_name[now_in],linein[now_in],"Cannot open include file");
#endif
fileerror("Cannot open include file", sp) ;
}
if (pass2 && iflist()) {
lineout() ;
fprintf(fout, "**** %s ****\n",sp) ;
}
/* save the list control flag with the current line number */
if (lstoff)
linein[now_in] = - linein[now_in] ;
/* no list if include files are turned off */
lstoff |= iopt ;
/* save the new file descriptor. */
fin[++now_in] = now_file ;
/* start with line 0 */
linein[now_in] = 0 ;
/* save away the file name */
src_name[now_in] = malloc(strlen(sp)+1) ;
strcpy(src_name[now_in],sp) ;
}
#ifdef __riscos
/*
* On entry sp should point to the full pathname of a file in RISC OS form.
* Searches for the last dot, and sets the local CSD to that path.
* Does not corrupt the string.
*/
void riscos_set_csd(char *sp)
{
char *s1 = strrchr (sp, '.');
if (s1 != NULL)
{
*s1=0;
_swix(DDEUtils_Prefix,1,sp);
*s1='.';
}
}
void riscos_throwback(int severity, char *file, int line, char *error)
{
if (riscos_throwback_started==0)
{
riscos_throwback_started=1;
*riscos_thbkf=0;
_swix(DDEUtils_ThrowbackStart,0);
}
if (strcmp(file, riscos_thbkf)!=0)
{
_swix(DDEUtils_ThrowbackSend,4+1,0,file); /* Notify of a change of file */
strcpy(riscos_thbkf,file);
}
_swix(DDEUtils_ThrowbackSend,32+16+8+4+1,1,file,line,severity,error);
}
#endif
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