#include "symbol.h"
#include "object.h"
-int perm_verb_flag; // Permanently verbose, interactive mode
-int list_flag; // "-l" Listing flag on command line
-int verb_flag; // Be verbose about what's going on
-int as68_flag; // as68 kludge mode
-int glob_flag; // Assume undefined symbols are global
-int lsym_flag; // Include local symbols in object file
-int sbra_flag; // Warn about possible short branches
-int obj_format; // Object format flag
-int debug; // [1..9] Enable debugging levels
-int err_flag; // '-e' specified
-int err_fd; // File to write error messages to
-int rgpu, rdsp; // Assembling Jaguar GPU or DSP code
-int list_fd; // File to write listing to
-int regbank; // RISC register bank
-int segpadsize; // Segment padding size
-int in_main; // In main memory flag for GPUMAIN
-int endian; // Processor endianess
-char *objfname; // Object filename pointer
-char *firstfname; // First source filename
-char *cmdlnexec; // Executable name, pointer to ARGV[0]
-char *searchpath; // Search path for include files
-char defname[] = "noname.o"; // Default output filename
-
-// Under Windows and UNIX malloc() is an expensive call, so for small amounts of memory we allocate
-// from a previously allocated buffer.
+int perm_verb_flag; // Permanently verbose, interactive mode
+int list_flag; // "-l" Listing flag on command line
+int verb_flag; // Be verbose about what's going on
+int as68_flag; // as68 kludge mode
+int glob_flag; // Assume undefined symbols are global
+int lsym_flag; // Include local symbols in object file
+int sbra_flag; // Warn about possible short branches
+int obj_format; // Object format flag
+int debug; // [1..9] Enable debugging levels
+int err_flag; // '-e' specified
+int err_fd; // File to write error messages to
+int rgpu, rdsp; // Assembling Jaguar GPU or DSP code
+int list_fd; // File to write listing to
+int regbank; // RISC register bank
+int segpadsize; // Segment padding size
+int in_main; // In main memory flag for GPUMAIN
+int endian; // Host processor endianess
+char * objfname; // Object filename pointer
+char * firstfname; // First source filename
+char * cmdlnexec; // Executable name, pointer to ARGV[0]
+char * searchpath; // Search path for include files
+char defname[] = "noname.o"; // Default output filename
+
+// Under Windows and UNIX malloc() is an expensive call, so for small amounts
+// of memory we allocate from a previously allocated buffer.
#define A_AMOUNT 4096 // Amount to malloc() at a time
#define A_THRESH 64 // Use malloc() for amounts >= A_THRESH
static LONG a_amount; // Amount left at a_ptr
-static char *a_ptr; // Next free chunk
+static char * a_ptr; // Next free chunk
LONG amemtot; // amem() total of requests
// Qsort; The THRESHold below is the insertion sort threshold, and has been adjusted
static int thresh; // THRESHold in chars
static int mthresh; // MTHRESHold in chars
-// qst: Do a quicksort. First, find the median element, and put that one in the first place as
-// the discriminator. (This "median" is just the median of the first, last and middle elements).
-// (Using this median instead of the first element is a big win). Then, the usual
-// partitioning/swapping, followed by moving the discriminator into the right place. Then,
-// figure out the sizes of the two partions, do the smaller one recursively and the larger one
-// via a repeat of this code. Stopping when there are less than THRESH elements in a partition
-// and cleaning up with an insertion sort (in our caller) is a huge win. All data swaps are done
-// in-line, which is space-losing but time-saving. (And there are only three places where
-// this is done).
-
-static int qst(char *base, char *max) {
- char c, *i, *j, *jj;
+
+//
+// qst: Do a quicksort. First, find the median element, and put that one in the
+// first place as the discriminator. (This "median" is just the median of the
+// first, last and middle elements). (Using this median instead of the first
+// element is a big win). Then, the usual partitioning/swapping, followed by
+// moving the discriminator into the right place. Then, figure out the sizes of
+// the two partions, do the smaller one recursively and the larger one via a
+// repeat of this code. Stopping when there are less than THRESH elements in a
+// partition and cleaning up with an insertion sort (in our caller) is a huge
+// win. All data swaps are done in-line, which is space-losing but time-saving.
+// (And there are only three places where this is done).
+//
+static int qst(char * base, char * max)
+{
+ char c, * i, * j, * jj;
int ii;
- char *mid, *tmp;
+ char * mid, * tmp;
long lo, hi;
/*
* At the top here, lo is the number of characters of elements in the
- * current partition. (Which should be max - base).
+ * current partition. (Which should be max - base).
* Find the median of the first, last, and middle element and make
- * that the middle element. Set j to largest of first and middle.
+ * that the middle element. Set j to largest of first and middle.
* If max is larger than that guy, then it's that guy, else compare
- * max with loser of first and take larger. Things are set up to
+ * max with loser of first and take larger. Things are set up to
* prefer the middle, then the first in case of ties.
*/
lo = max - base; /* number of elements as chars */
- do {
+
+ do
+ {
mid = i = base + qsz * ((lo / qsz) >> 1);
- if (lo >= mthresh) {
+
+ if (lo >= mthresh)
+ {
j = (qcmp((jj = base), i) > 0 ? jj : i);
- if (qcmp(j, (tmp = max - qsz)) > 0) {
+
+ if (qcmp(j, (tmp = max - qsz)) > 0)
+ {
/* switch to first loser */
j = (j == jj ? i : jj);
+
if (qcmp(j, tmp) < 0)
j = tmp;
}
- if (j != i) {
+
+ if (j != i)
+ {
ii = qsz;
- do {
+
+ do
+ {
c = *i;
*i++ = *j;
*j++ = c;
- } while (--ii);
+ }
+ while (--ii);
}
}
+
/*
* Semi-standard quicksort partitioning/swapping
*/
- for (i = base, j = max - qsz; ; ) {
+ for(i=base, j=max-qsz; ;)
+ {
while (i < mid && qcmp(i, mid) <= 0)
i += qsz;
- while (j > mid) {
- if (qcmp(mid, j) <= 0) {
+
+ while (j > mid)
+ {
+ if (qcmp(mid, j) <= 0)
+ {
j -= qsz;
continue;
}
+
tmp = i + qsz; /* value of i after swap */
- if (i == mid) {
+
+ if (i == mid)
+ {
/* j <-> mid, new mid is j */
mid = jj = j;
- } else {
+ }
+ else
+ {
/* i <-> j */
jj = j;
j -= qsz;
}
+
goto swap;
}
- if (i == mid) {
+
+ if (i == mid)
+ {
break;
- } else {
+ }
+ else
+ {
/* i <-> mid, new mid is i */
jj = mid;
tmp = mid = i; /* value of i after swap */
}
swap:
ii = qsz;
- do {
+
+ do
+ {
c = *i;
*i++ = *jj;
*jj++ = c;
- } while (--ii);
+ }
+ while (--ii);
+
i = tmp;
}
+
/*
* Look at sizes of the two partitions, do the smaller
* one first by recursion, then do the larger one by
* of at least size THRESH.
*/
i = (j = mid) + qsz;
- if ((lo = j - base) <= (hi = max - i)) {
+
+ if ((lo = j - base) <= (hi = max - i))
+ {
if (lo >= thresh)
qst(base, j);
+
base = i;
lo = hi;
- } else {
+ }
+ else
+ {
if (hi >= thresh)
qst(i, max);
+
max = j;
}
- } while (lo >= thresh);
+ }
+ while (lo >= thresh);
- return(0);
+ return 0;
}
+
/*
* qsort:
* First, set up some global parameters for qst to share. Then, quicksort
* with qst(), and then a cleanup insertion sort ourselves. Sound simple?
* It's not...
*/
-
-int rmac_qsort(char *base, int n, int size, int (*compar)()) {
- register char c, *i, *j, *lo, *hi;
- char *min, *max;
+int rmac_qsort(char * base, int n, int size, int (*compar)())
+{
+ register char c, * i, * j, * lo, * hi;
+ char * min, * max;
if (n <= 1)
- return(0);
+ return 0;
+
qsz = size;
qcmp = compar;
thresh = qsz * THRESH;
mthresh = qsz * MTHRESH;
max = base + n * qsz;
- if (n >= THRESH) {
+
+ if (n >= THRESH)
+ {
qst(base, max);
hi = base + thresh;
- } else {
+ }
+ else
+ {
hi = max;
}
+
/*
* First put smallest element, which must be in the first THRESH, in
* the first position as a sentinel. This is done just by searching
* the first THRESH elements (or the first n if n < THRESH), finding
* the min, and swapping it into the first position.
*/
- for (j = lo = base; (lo += qsz) < hi; )
+ for(j=lo=base; (lo+=qsz)<hi;)
+ {
if (qcmp(j, lo) > 0)
j = lo;
- if (j != base) {
+ }
+
+ if (j != base)
+ {
/* swap j into place */
- for (i = base, hi = base + qsz; i < hi; ) {
+ for(i=base, hi=base+qsz; i<hi;)
+ {
c = *j;
*j++ = *i;
*i++ = c;
}
}
+
/*
* With our sentinel in place, we now run the following hyper-fast
* insertion sort. For each remaining element, min, from [1] to [n-1],
* Then, do the standard insertion sort shift on a character at a time
* basis for each element in the frob.
*/
- for (min = base; (hi = min += qsz) < max; ) {
+ for(min=base; (hi=min+=qsz)<max;)
+ {
while (qcmp(hi -= qsz, min) > 0)
/* void */;
- if ((hi += qsz) != min) {
- for (lo = min + qsz; --lo >= min; ) {
+
+ if ((hi += qsz) != min)
+ {
+ for(lo=min+qsz; --lo>=min;)
+ {
c = *lo;
- for (i = j = lo; (j -= qsz) >= hi; i = j)
+
+ for(i=j=lo; (j-=qsz)>=hi; i=j)
*i = *j;
+
*i = c;
}
}
}
- return(0);
+
+ return 0;
}
+
//
-// --- Allocate memory; Panic and Quit if we Run Out -----------------------------------------------
+// Allocate memory; Panic and Quit if we Run Out
//
-
char * amem(LONG amount)
{
char * p;
- if (amount & 1) // Keep word alignment
- ++amount;
+// if (amount & 1) // Keep word alignment
+// amount++;
+ amount = (amount + 1) & ~(0x01); // Keep word alignment
+ // Honor *small* request (< 64 bytes)
if (amount < A_THRESH)
- { // Honor *small* request
+ {
if (a_amount < amount)
{
- a_ptr = amem(A_AMOUNT);
+ a_ptr = amem(A_AMOUNT); // Allocate 4K bytes
a_amount = A_AMOUNT;
}
}
else
{
- amemtot += amount; // Bump total alloc
- p = (char *)malloc(amount); // Get memory from malloc
+ amemtot += amount; // Bump total alloc
+ p = (char *)malloc(amount); // Get memory from malloc
- if ((LONG)p == (LONG)NULL)
- fatal("memory exhausted");
+ if (p == NULL)
+ fatal("Memory exhausted!");
memset(p, 0, amount);
}
return p;
}
+
//
-// --- Copy stuff around, return pointer to dest+count+1 (doesn't handle overlap) ------------------
+// Copy stuff around, return pointer to dest+count+1 (doesn't handle overlap)
//
-
char * copy(char * dest, char * src, LONG count)
{
- while (count--)
- *dest++ = *src++;
+ while (count--)
+ *dest++ = *src++;
- return dest;
+ return dest;
}
+
//
-// --- Clear a region of memory --------------------------------------------------------------------
+// Clear a region of memory
//
-
-void clear(char *dest, LONG count)
+void clear(char * dest, LONG count)
{
while(count--)
*dest++ = 0;
}
+
//
-// --- Check to see if the string is a keyword. Returns -1, or a value from the 'accept[]' table ---
+// Check to see if the string is a keyword. Returns -1, or a value from the
+// 'accept[]' table
//
-
int kmatch(char * p, int * base, int * check, int * tab, int * accept)
{
int state;
return state;
}
+
//
-// --- Auto-even a section -------------------------------------------------------------------------
+// Auto-even a section
//
-
void autoeven(int sect)
{
switchsect(sect);
savsect();
}
+
//
-// -------------------------------------------------------------------------------------------------
// Manipulate file extension.
// `name' must be large enough to hold any possible filename.
// If `stripp' is nonzero, any old extension is removed.
// Then, if the file does not already have an extension,
// `extension' is appended to the filename.
-// -------------------------------------------------------------------------------------------------
//
+char * fext(char * name, char * extension, int stripp)
+{
+ char * s, * beg; // String pointers
+
+ // Find beginning of "real" name
+ beg = name + strlen(name) - 1;
+
+ for(; beg>name; --beg)
+ {
+ if (*beg == SLASHCHAR)
+ {
+ ++beg;
+ break;
+ }
+ }
+
+ if (stripp)
+ { // Clobber any old extension
+ for(s=beg; *s && *s!='.'; ++s)
+ ;
+
+ *s = '\0';
+ }
+
+ for(s=beg; *s!='.'; ++s)
+ {
+ if (!*s)
+ { // Append the new extension
+ strcat(beg, extension);
+ break;
+ }
+ }
-char *fext(char *name, char *extension, int stripp) {
- char *s, *beg; // String pointers
-
- // Find beginning of "real" name
- beg = name + strlen(name) - 1;
- for(; beg > name; --beg) {
- if(*beg == SLASHCHAR) {
- ++beg;
- break;
- }
- }
-
- if(stripp) { // Clobber any old extension
- for(s = beg; *s && *s != '.'; ++s)
- ;
- *s = '\0';
- }
-
- for(s = beg; *s != '.'; ++s) {
- if(!*s) { // Append the new extension
- strcat(beg, extension);
- break;
- }
- }
-
- return(name);
+ return name;
}
+
//
-// -------------------------------------------------------------------------------------------------
-// Return `item'nth element of semicolon-seperated pathnames specified in the enviroment string `s'.
-// Copy the pathname to `buf'. Return 0 if the `item'nth path doesn't exist.
+// Return `item'nth element of semicolon-seperated pathnames specified in the
+// enviroment string `s'. Copy the pathname to `buf'. Return 0 if the `item'
+// nth path doesn't exist.
//
// [`item' ranges from 0 to N-1, where N = #elements in search path]
-// -------------------------------------------------------------------------------------------------
//
-
int nthpath(char * env_var, int itemno, char * buf)
{
char * s = searchpath;
return 1;
}
+
//
-// --- Display Command Line Help -----------------------------------------------
+// Display Command Line Help
//
-
void display_help(void)
{
printf("Usage:\n");
printf("\n");
}
+
//
-// --- Display Version Information ---------------------------------------------
+// Display Version Information
//
-
void display_version(void)
{
printf("\nReboot's Macro Assembler for Atari Jaguar\n");
printf("V%01i.%01i.%01i %s (%s)\n\n", MAJOR, MINOR, PATCH, __DATE__, PLATFORM);
}
+
//
-// --- Process Command Line Arguments and do an Assembly -------------------------------------------
+// Process Command Line Arguments and do an Assembly
//
+int process(int argc, char ** argv)
+{
+ int argno; // Argument number
+ SYM * sy; // Pointer to a symbol record
+ char * s; // String pointer
+ int fd; // File descriptor
+ char fnbuf[FNSIZ]; // Filename buffer
+ int i; // Iterator
+
+ errcnt = 0; // Initialise error count
+ listing = 0; // Initialise listing level
+ list_flag = 0; // Initialise listing flag
+ verb_flag = perm_verb_flag; // Initialise verbose flag
+ as68_flag = 0; // Initialise as68 kludge mode
+ glob_flag = 0; // Initialise .globl flag
+ sbra_flag = 0; // Initialise short branch flag
+ debug = 0; // Initialise debug flag
+ searchpath = NULL; // Initialise search path
+ objfname = NULL; // Initialise object filename
+ list_fname = NULL; // Initialise listing filename
+ err_fname = NULL; // Initialise error filename
+ obj_format = BSD; // Initialise object format
+ firstfname = NULL; // Initialise first filename
+ err_fd = ERROUT; // Initialise error file descriptor
+ err_flag = 0; // Initialise error flag
+ rgpu = 0; // Initialise GPU assembly flag
+ rdsp = 0; // Initialise DSP assembly flag
+ lsym_flag = 1; // Include local symbols in object file
+ regbank = BANK_N; // No RISC register bank specified
+ orgactive = 0; // Not in RISC org section
+ orgwarning = 0; // No ORG warning issued
+ a_amount = 0;
+ segpadsize = 2; // Initialise segment padding size
+ in_main = 0;
+
+ // Initialise modules
+ InitSymbolTable(); // Symbol table
+ init_token(); // Tokenizer
+ init_procln(); // Line processor
+ init_expr(); // Expression analyzer
+ init_sect(); // Section manager / code generator
+ init_mark(); // Mark tape-recorder
+ InitMacro(); // Macro processor
+ init_list(); // Listing generator
+
+ // Process command line arguments and assemble source files
+ for(argno = 0; argno < argc; ++argno)
+ {
+ if (*argv[argno] == '-')
+ {
+ switch (argv[argno][1])
+ {
+ case 'd': // Define symbol
+ case 'D':
+ for(s=argv[argno]+2; *s!=EOS;)
+ {
+ if (*s++ == '=')
+ {
+ s[-1] = EOS;
+ break;
+ }
+ }
-int process(int argc, char **argv) {
- int argno; // Argument number
- SYM *sy; // Pointer to a symbol record
- char *s; // String pointer
- int fd; // File descriptor
- char fnbuf[FNSIZ]; // Filename buffer
- int i; // Iterator
-
- errcnt = 0; // Initialise error count
- listing = 0; // Initialise listing level
- list_flag = 0; // Initialise listing flag
- verb_flag = perm_verb_flag; // Initialise verbose flag
- as68_flag = 0; // Initialise as68 kludge mode
- glob_flag = 0; // Initialise .globl flag
- sbra_flag = 0; // Initialise short branch flag
- debug = 0; // Initialise debug flag
- searchpath = NULL; // Initialise search path
- objfname = NULL; // Initialise object filename
- list_fname = NULL; // Initialise listing filename
- err_fname = NULL; // Initialise error filename
- obj_format = BSD; // Initialise object format
- firstfname = NULL; // Initialise first filename
- err_fd = ERROUT; // Initialise error file descriptor
- err_flag = 0; // Initialise error flag
- rgpu = 0; // Initialise GPU assembly flag
- rdsp = 0; // Initialise DSP assembly flag
- lsym_flag = 1; // Include local symbols in object file
- regbank = BANK_N; // No RISC register bank specified
- orgactive = 0; // Not in RISC org section
- orgwarning = 0; // No ORG warning issued
- a_amount = 0;
- segpadsize = 2; // Initialise segment padding size
- in_main = 0;
-
- // Initialise modules
- init_sym(); // Symbol table
- init_token(); // Tokenizer
- init_procln(); // Line processor
- init_expr(); // Expression analyzer
- init_sect(); // Section manager / code generator
- init_mark(); // Mark tape-recorder
- init_macro(); // Macro processor
- init_list(); // Listing generator
-
- // Process command line arguments and assemble source files
- for(argno = 0; argno < argc; ++argno) {
- if(*argv[argno] == '-') {
- switch(argv[argno][1]) {
- case 'd': // Define symbol
- case 'D':
- for(s = argv[argno] + 2; *s != EOS;) {
- if(*s++ == '=') {
- s[-1] = EOS;
- break;
- }
- }
- if(argv[argno][2] == EOS) {
- printf("-d: empty symbol\n");
- ++errcnt;
- return(errcnt);
- }
- sy = lookup(argv[argno] + 2, 0, 0);
- if(sy == NULL) {
- sy = newsym(argv[argno] + 2, LABEL, 0);
- sy->svalue = 0;
- }
- sy->sattr = DEFINED | EQUATED | ABS;
- if(*s)
- sy->svalue = (VALUE)atoi(s);
- else
- sy->svalue = 0;
- break;
- case 'e': // Redirect error message output
- case 'E':
- err_fname = argv[argno] + 2;
- break;
- case 'f': // -f<format>
- case 'F':
- switch(argv[argno][2]) {
- case EOS:
- case 'b': // -fb = BSD (Jaguar Recommended)
- case 'B':
- obj_format = BSD;
- break;
- default:
- printf("-f: unknown object format specified\n");
- ++errcnt;
- return(errcnt);
- }
- break;
- case 'g': // Debugging flag
- case 'G':
- printf("Debugging flag (-g) not yet implemented\n");
- break;
- case 'i': // Set directory search path
- case 'I':
- searchpath = argv[argno] + 2;
- break;
- case 'l': // Produce listing file
- case 'L':
- list_fname = argv[argno] + 2;
- listing = 1;
- list_flag = 1;
- ++lnsave;
- break;
- case 'o': // Direct object file output
- case 'O':
- if(argv[argno][2] != EOS) objfname = argv[argno] + 2;
- else {
- if(++argno >= argc) {
- printf("Missing argument to -o");
- ++errcnt;
- return(errcnt);
- }
- objfname = argv[argno];
- }
- break;
- case 'r': // Pad seg to requested boundary size
- case 'R':
- switch(argv[argno][2]) {
- case 'w': case 'W': segpadsize = 2; break;
- case 'l': case 'L': segpadsize = 4; break;
- case 'p': case 'P': segpadsize = 8; break;
- case 'd': case 'D': segpadsize = 16; break;
- case 'q': case 'Q': segpadsize = 32; break;
- default: segpadsize = 2; break; // Effective autoeven();
- }
- break;
- case 's': // Warn about possible short branches
- case 'S':
- sbra_flag = 1;
- break;
- case 'u': // Make undefined symbols .globl
- case 'U':
- glob_flag = 1;
- break;
- case 'v': // Verbose flag
- case 'V':
- verb_flag++;
- if(verb_flag > 1) display_version();
- break;
- case 'x': // Turn on debugging
- case 'X':
- debug = 1;
- printf("~ Debugging ON\n");
- break;
- case 'y': // -y<pagelen>
- case 'Y':
- pagelen = atoi(argv[argno] + 2);
- if(pagelen < 10) {
- printf("-y: bad page length\n");
- ++errcnt;
- return(errcnt);
- }
- break;
- case EOS: // Input is stdin
- if(firstfname == NULL) // Kludge first filename
- firstfname = defname;
- include(0, "(stdin)");
- assemble();
- break;
- case 'h': // Display command line usage
- case 'H':
- case '?':
- display_version();
- display_help();
- ++errcnt;
- break;
- default:
- display_version();
- printf("Unknown switch: %s\n\n", argv[argno]);
- display_help();
- ++errcnt;
- break;
- }
- } else {
- // Record first filename.
- if(firstfname == NULL)
- firstfname = argv[argno];
- strcpy(fnbuf, argv[argno]);
- fext(fnbuf, ".s", 0);
- fd = open(fnbuf, 0);
- if(fd < 0) {
- printf("Cannot open: %s\n", fnbuf);
- ++errcnt;
- continue;
- }
- include(fd, fnbuf);
- assemble();
- }
- }
-
- // Wind-up processing;
- // o save current section (no more code generation)
- // o do auto-even of all sections (or boundary alignment as requested through '-r')
- // o determine name of object file:
- // - "foo.o" for linkable output;
- // - "foo.prg" for GEMDOS executable (-p flag).
- savsect();
- for(i = TEXT; i <= BSS; i <<= 1) {
- switchsect(i);
- switch(segpadsize) {
- case 2: d_even(); break;
- case 4: d_long(); break;
- case 8: d_phrase(); break;
- case 16: d_dphrase(); break;
- case 32: d_qphrase(); break;
- }
- savsect();
- }
-
- if(objfname == NULL) {
- if(firstfname == NULL)
- firstfname = defname;
- strcpy(fnbuf, firstfname);
- //fext(fnbuf, prg_flag ? ".prg" : ".o", 1);
- fext(fnbuf, ".o", 1);
- objfname = fnbuf;
- }
-
- // With one pass finished, go back and:
- // (1) run through all the fixups and resolve forward references;
- // (1.5) ensure that remaining fixups can be handled by the linker
- // (`lo68' format, extended (postfix) format....)
- // (2) generate the output file image and symbol table;
- // (3) generate relocation information from left-over fixups.
- fixups(); // Do all fixups
- stopmark(); // Stop mark tape-recorder
- if(errcnt == 0) {
- if((fd = open(objfname, _OPEN_FLAGS, _PERM_MODE)) < 0)
- cantcreat(objfname);
- if(verb_flag) {
- s = "object";
- printf("[Writing %s file: %s]\n", s, objfname);
- }
- object((WORD)fd);
- close(fd);
- if(errcnt != 0)
- unlink(objfname);
- }
-
- if(list_flag) {
- if(verb_flag) printf("[Wrapping-up listing file]\n");
- listing = 1;
- symtable();
- close(list_fd);
- }
-
- if(err_flag)
- close(err_fd);
-
- DEBUG dump_everything();
-
- return(errcnt);
-}
+ if (argv[argno][2] == EOS)
+ {
+ printf("-d: empty symbol\n");
+ ++errcnt;
+ return errcnt;
+ }
-#if 0
-//
-// --- Interactive Mode ----------------------------------------------------------------------------
-//
+ sy = lookup(argv[argno] + 2, 0, 0);
-void interactive(void)
-{
- char * s; // String pointer for banner
- char ln[LNSIZ]; // Input line
- char * argv[MAXARGV]; // Argument values
- int argcnt; // Argument count
-
- // As there is no command line, print a copyright message and prompt for command line
- s = "*****************************************************\n";
- printf("\n%s* RMAC - Reboot's Macro Assembler for Atari Jaguar *\n", s);
- printf("* Copyright (C) 199x Landon Dyer, 2011 Reboot *\n");
- printf("* Version %01i.%01i.%01i Platform: %-9s *\n",MAJOR,MINOR,PATCH,PLATFORM);
- printf("* ------------------------------------------------- *\n");
- printf("* INTERACTIVE MODE (press ENTER by itself to quit) *\n%s\n", s);
-
- perm_verb_flag = 1; // Enter permanent verbose mode
-
- // Handle commandlines until EOF or we get an empty one
- for(;;)
- {
- loop:
- printf("* ");
- fflush(stdout); // Make prompt visible
+ if (sy == NULL)
+ {
+ sy = NewSymbol(argv[argno] + 2, LABEL, 0);
+ sy->svalue = 0;
+ }
-// if (gets(ln) == NULL || !*ln) // Get input line
- if (fgets(ln, LNSIZ, stdin) == NULL || !*ln) // Get input line
- break;
+ sy->sattr = DEFINED | EQUATED | ABS;
- argcnt = 0; // Process input line
- s = ln;
+ if (*s)
+ sy->svalue = (VALUE)atoi(s);
+ else
+ sy->svalue = 0;
- while (*s)
- {
- if (isspace(*s))
- { // Skip whitespace
- ++s;
- }
- else
- {
- if (argcnt >= MAXARGV)
+ break;
+ case 'e': // Redirect error message output
+ case 'E':
+ err_fname = argv[argno] + 2;
+ break;
+ case 'f': // -f<format>
+ case 'F':
+ switch (argv[argno][2])
+ {
+ case EOS:
+ case 'b': // -fb = BSD (Jaguar Recommended)
+ case 'B':
+ obj_format = BSD;
+ break;
+ default:
+ printf("-f: unknown object format specified\n");
+ errcnt++;
+ return errcnt;
+ }
+ break;
+ case 'g': // Debugging flag
+ case 'G':
+ printf("Debugging flag (-g) not yet implemented\n");
+ break;
+ case 'i': // Set directory search path
+ case 'I':
+ searchpath = argv[argno] + 2;
+ break;
+ case 'l': // Produce listing file
+ case 'L':
+ list_fname = argv[argno] + 2;
+ listing = 1;
+ list_flag = 1;
+ lnsave++;
+ break;
+ case 'o': // Direct object file output
+ case 'O':
+ if (argv[argno][2] != EOS)
+ objfname = argv[argno] + 2;
+ else
+ {
+ if (++argno >= argc)
+ {
+ printf("Missing argument to -o");
+ errcnt++;
+ return errcnt;
+ }
+ objfname = argv[argno];
+ }
+
+ break;
+ case 'r': // Pad seg to requested boundary size
+ case 'R':
+ switch(argv[argno][2])
+ {
+ case 'w': case 'W': segpadsize = 2; break;
+ case 'l': case 'L': segpadsize = 4; break;
+ case 'p': case 'P': segpadsize = 8; break;
+ case 'd': case 'D': segpadsize = 16; break;
+ case 'q': case 'Q': segpadsize = 32; break;
+ default: segpadsize = 2; break; // Effective autoeven();
+ }
+ break;
+ case 's': // Warn about possible short branches
+ case 'S':
+ sbra_flag = 1;
+ break;
+ case 'u': // Make undefined symbols .globl
+ case 'U':
+ glob_flag = 1;
+ break;
+ case 'v': // Verbose flag
+ case 'V':
+ verb_flag++;
+
+ if (verb_flag > 1)
+ display_version();
+
+ break;
+ case 'x': // Turn on debugging
+ case 'X':
+ debug = 1;
+ printf("~ Debugging ON\n");
+ break;
+ case 'y': // -y<pagelen>
+ case 'Y':
+ pagelen = atoi(argv[argno] + 2);
+
+ if (pagelen < 10)
{
- printf("Too many arguments\n");
- goto loop;
+ printf("-y: bad page length\n");
+ ++errcnt;
+ return errcnt;
}
- argv[argcnt++] = s;
+ break;
+ case EOS: // Input is stdin
+ if (firstfname == NULL) // Kludge first filename
+ firstfname = defname;
+
+ include(0, "(stdin)");
+ Assemble();
+ break;
+ case 'h': // Display command line usage
+ case 'H':
+ case '?':
+ display_version();
+ display_help();
+ errcnt++;
+ break;
+ default:
+ display_version();
+ printf("Unknown switch: %s\n\n", argv[argno]);
+ display_help();
+ errcnt++;
+ break;
+ }
+ }
+ else
+ {
+ // Record first filename.
+ if (firstfname == NULL)
+ firstfname = argv[argno];
- while (*s && !isspace(*s))
- ++s;
+ strcpy(fnbuf, argv[argno]);
+ fext(fnbuf, ".s", 0);
+ fd = open(fnbuf, 0);
- if (isspace(*s))
- *s++ = EOS;
+ if (fd < 0)
+ {
+ printf("Cannot open: %s\n", fnbuf);
+ errcnt++;
+ continue;
}
+
+ include(fd, fnbuf);
+ Assemble();
}
+ }
- if (argcnt == 0) // Exit if no arguments
- break;
+ // Wind-up processing;
+ // o save current section (no more code generation)
+ // o do auto-even of all sections (or boundary alignment as requested through '-r')
+ // o determine name of object file:
+ // - "foo.o" for linkable output;
+ // - "foo.prg" for GEMDOS executable (-p flag).
+ savsect();
- process(argcnt, argv); // Process arguments
+ for(i=TEXT; i<=BSS; i<<=1)
+ {
+ switchsect(i);
+
+ switch(segpadsize)
+ {
+ case 2: d_even(); break;
+ case 4: d_long(); break;
+ case 8: d_phrase(); break;
+ case 16: d_dphrase(); break;
+ case 32: d_qphrase(); break;
+ }
- if (errcnt)
- printf("%d assembly error%s\n", errcnt, (errcnt > 1) ? "s" : "");
+ savsect();
}
+
+ if (objfname == NULL)
+ {
+ if (firstfname == NULL)
+ firstfname = defname;
+
+ strcpy(fnbuf, firstfname);
+ //fext(fnbuf, prg_flag ? ".prg" : ".o", 1);
+ fext(fnbuf, ".o", 1);
+ objfname = fnbuf;
+ }
+
+ // With one pass finished, go back and:
+ // (1) run through all the fixups and resolve forward references;
+ // (1.5) ensure that remaining fixups can be handled by the linker
+ // (`lo68' format, extended (postfix) format....)
+ // (2) generate the output file image and symbol table;
+ // (3) generate relocation information from left-over fixups.
+ ResolveAllFixups(); // Do all fixups
+ stopmark(); // Stop mark tape-recorder
+
+ if (errcnt == 0)
+ {
+ if ((fd = open(objfname, _OPEN_FLAGS, _PERM_MODE)) < 0)
+ cantcreat(objfname);
+
+ if (verb_flag)
+ {
+ s = "object";
+ printf("[Writing %s file: %s]\n", s, objfname);
+ }
+
+ object((WORD)fd);
+ close(fd);
+
+ if (errcnt != 0)
+ unlink(objfname);
+ }
+
+ if (list_flag)
+ {
+ if (verb_flag)
+ printf("[Wrapping-up listing file]\n");
+
+ listing = 1;
+ symtable();
+ close(list_fd);
+ }
+
+ if (err_flag)
+ close(err_fd);
+
+ DEBUG dump_everything();
+
+ return errcnt;
}
-#endif
+
//
-// --- Determine Processor Endianess ---------------------------------------------------------------
+// Determine Processor Endianess
//
-
int get_endianess(void)
{
int i = 1;
return 1;
}
+
//
-// --- Application Entry Point; Handle the Command Line --------------------------------------------
+// Application Entry Point; Handle the Command Line
//
-
int main(int argc, char ** argv)
{
- int status; // Status flag
+ int status;
int i;
- perm_verb_flag = 0; // Clobber "permanent" verbose flag
- cmdlnexec = argv[0]; // Obtain executable name
+ perm_verb_flag = 0; // Clobber "permanent" verbose flag
+ cmdlnexec = argv[0]; // Obtain executable name
- endian = get_endianess(); // Get processor endianess
+ endian = get_endianess(); // Get processor endianess
for(i=0; i<MAXFWDJUMPS; i++)
fwdjump[i] = 0;
+ // Full command line passed
if (argc > 1)
- { // Full command line passed
+ {
status = process(argc - 1, argv + 1);
}
- // Interactive mode
else
{
-// Sorry Landon, this is the year 20xx and we haz plenty of resources now ;-)
-// status = 0;
-// interactive();
- // Instead, we show a nice banner and switches :-)
display_version();
display_help();
}
projects / rmac / blobdiff