X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?p=rmac;a=blobdiff_plain;f=rmac.c;h=5842792087b00ada698fb54eaf5ecdccfed04b9d;hp=dd7add11a8f5503a8598497e784bec3951739ac3;hb=60f204cb9e3905100da0d89f14bb40db764acd9e;hpb=a77511e0edcd36624ae729ee7ebced6fcba04f92 diff --git a/rmac.c b/rmac.c index dd7add1..5842792 100644 --- a/rmac.c +++ b/rmac.c @@ -1,9 +1,9 @@ // // RMAC - Reboot's Macro Assembler for the Atari Jaguar Console System // RMAC.C - Main Application Code -// Copyright (C) 199x Landon Dyer, 2011 Reboot and Friends +// Copyright (C) 199x Landon Dyer, 2011 - 2016 Reboot and Friends // RMAC derived from MADMAC v1.07 Written by Landon Dyer, 1986 -// Source Utilised with the Kind Permission of Landon Dyer +// Source utilised with the kind permission of Landon Dyer // #include "rmac.h" @@ -15,376 +15,78 @@ #include "sect.h" #include "mark.h" #include "macro.h" -#include "risca.h" +#include "riscasm.h" #include "direct.h" #include "version.h" #include "debug.h" #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. - -#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 -LONG amemtot; // amem() total of requests - -// Qsort; The THRESHold below is the insertion sort threshold, and has been adjusted -// for records of size 48 bytes.The MTHREShold is where we stop finding a better median. - -#define THRESH 4 // Threshold for insertion -#define MTHRESH 6 // Threshold for median - -static int (*qcmp)(); // The comparison routine -static int qsz; // Size of each record -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; - int ii; - 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). - * Find the median of the first, last, and middle element and make - * 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 - * prefer the middle, then the first in case of ties. - */ - lo = max - base; /* number of elements as chars */ - do { - mid = i = base + qsz * ((lo / qsz) >> 1); - if (lo >= mthresh) { - j = (qcmp((jj = base), i) > 0 ? jj : i); - 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) { - ii = qsz; - do { - c = *i; - *i++ = *j; - *j++ = c; - } while (--ii); - } - } - /* - * Semi-standard quicksort partitioning/swapping - */ - for (i = base, j = max - qsz; ; ) { - while (i < mid && qcmp(i, mid) <= 0) - i += qsz; - while (j > mid) { - if (qcmp(mid, j) <= 0) { - j -= qsz; - continue; - } - tmp = i + qsz; /* value of i after swap */ - if (i == mid) { - /* j <-> mid, new mid is j */ - mid = jj = j; - } else { - /* i <-> j */ - jj = j; - j -= qsz; - } - goto swap; - } - if (i == mid) { - break; - } else { - /* i <-> mid, new mid is i */ - jj = mid; - tmp = mid = i; /* value of i after swap */ - j -= qsz; - } -swap: - ii = qsz; - do { - c = *i; - *i++ = *jj; - *jj++ = c; - } while (--ii); - i = tmp; - } - /* - * Look at sizes of the two partitions, do the smaller - * one first by recursion, then do the larger one by - * making sure lo is its size, base and max are update - * correctly, and branching back. But only repeat - * (recursively or by branching) if the partition is - * of at least size THRESH. - */ - i = (j = mid) + qsz; - if ((lo = j - base) <= (hi = max - i)) { - if (lo >= thresh) - qst(base, j); - base = i; - lo = hi; - } else { - if (hi >= thresh) - qst(i, max); - max = j; - } - } while (lo >= thresh); - - 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; - - if (n <= 1) - return(0); - qsz = size; - qcmp = compar; - thresh = qsz * THRESH; - mthresh = qsz * MTHRESH; - max = base + n * qsz; - if (n >= THRESH) { - qst(base, max); - hi = base + thresh; - } 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; ) - if (qcmp(j, lo) > 0) - j = lo; - if (j != base) { - /* swap j into place */ - 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], - * set hi to the index of the element AFTER which this one goes. - * 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; ) { - while (qcmp(hi -= qsz, min) > 0) - /* void */; - if ((hi += qsz) != min) { - for (lo = min + qsz; --lo >= min; ) { - c = *lo; - for (i = j = lo; (j -= qsz) >= hi; i = j) - *i = *j; - *i = c; - } - } - } - return(0); -} - -// -// --- Allocate memory; Panic and Quit if we Run Out ----------------------------------------------- -// - -char * amem(LONG amount) -{ - char * p; - - if (amount & 1) // Keep word alignment - ++amount; - - if (amount < A_THRESH) - { // Honor *small* request - if (a_amount < amount) - { - a_ptr = amem(A_AMOUNT); - a_amount = A_AMOUNT; - } - - p = a_ptr; - a_ptr += amount; - a_amount -= amount; - } - else - { - amemtot += amount; // Bump total alloc - p = (char *)malloc(amount); // Get memory from malloc +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 prg_flag; // !=0, produce .PRG executable (2=symbols) +int legacy_flag; // Do stuff like insert code in RISC assembler +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 endian; // Host processor endianess (0 = LE, 1 = BE) +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 +int optim_flags[OPT_COUNT]; // Specific optimisations on/off matrix - if ((LONG)p == (LONG)NULL) - fatal("memory exhausted"); - - memset(p, 0, amount); - } - - return p; -} - -// -// --- 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++; - - return dest; -} - +// Manipulate file extension. // -// --- Clear a region of memory -------------------------------------------------------------------- +// 'name' must be large enough to hold any possible filename. If 'stripp' is +// nonzero, any old extension is removed. If the file does not already have an +// extension, 'extension' is appended to the filename. // - -void clear(char *dest, LONG count) +char * fext(char * name, char * extension, int stripp) { - while(count--) - *dest++ = 0; -} + char * s; -// -// --- Check to see if the string is a keyword. Returns -1, or a value from the 'accept[]' table --- -// + // Find beginning of "real" name (strip off path) + char * beg = strrchr(name, SLASHCHAR); -int kmatch(char * p, int * base, int * check, int * tab, int * accept) -{ - int state; - int j; + if (beg == NULL) + beg = name; - for(state=0; state>=0;) + // Clobber any old extension, if requested + if (stripp) { - j = base[state] + (int)tolowertab[*p]; - - if (check[j] != state) - { // Reject, character doesn't match - state = -1; // No match - break; - } - - if (!*++p) - { // Must accept or reject at EOS - state = accept[j]; // (-1 on no terminal match) - break; - } + for(s=beg; *s && *s!='.'; ++s) + ; - state = tab[j]; + *s = '\0'; } - return state; -} - -// -// --- Auto-even a section ------------------------------------------------------------------------- -// + if (strrchr(beg, '.') == NULL) + strcat(beg, extension); -void autoeven(int sect) -{ - switchsect(sect); - d_even(); - savsect(); + return name; } -// -// ------------------------------------------------------------------------------------------------- -// 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; - } - } - - 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. -// -// [`item' ranges from 0 to N-1, where N = #elements in search path] -// ------------------------------------------------------------------------------------------------- +// 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; @@ -410,384 +112,462 @@ int nthpath(char * env_var, int itemno, char * buf) return 1; } + // -// --- Display Command Line Help ----------------------------------------------- +// Display command line help // - -void display_help(void) +void DisplayHelp(void) { - printf("Usage:\n"); - printf(" %s [options] srcfile\n", cmdlnexec); - printf("\n"); - printf("Options:\n"); - printf(" -? or -h display usage information\n"); - printf(" -dsymbol[=value] define symbol\n"); - printf(" -e[errorfile] send error messages to file, not stdout\n"); - printf(" -f[format] output object file format\n"); - printf(" b: BSD (use this for Jaguar)\n"); - printf(" -i[path] directory to search for include files\n"); - printf(" -l[filename] create an output listing file\n"); - printf(" -o file output file name\n"); - printf(" -r[size] pad segments to boundary size specified\n"); - printf(" w: word (2 bytes, default alignment)\n"); - printf(" l: long (4 bytes)\n"); - printf(" p: phrase (8 bytes)\n"); - printf(" d: double phrase (16 bytes)\n"); - printf(" q: quad phrase (32 bytes)\n"); - printf(" -s warn about possible short branches\n"); - printf(" -u force referenced and undefined symbols global\n"); - printf(" -v set verbose mode\n"); - printf(" -y[pagelen] set page line length (default: 61)\n"); - printf("\n"); + printf("Usage:\n" + " %s [options] srcfile\n" + "\n" + "Options:\n" + " -? or -h Display usage information\n" + " -dsymbol[=value] Define symbol\n" + " -e[errorfile] Send error messages to file, not stdout\n" + " -f[format] Output object file format\n" + " a: ALCYON (use this for ST)\n" + " b: BSD (use this for Jaguar)\n" + " e: ELF\n" + " -i[path] Directory to search for include files\n" + " -l[filename] Create an output listing file\n" + " -n Don't do things behind your back in RISC assembler\n" + " -o file Output file name\n" + " +o[value] Turn a specific optimisation on\n" + " ~o[value] Turn a specific optimisation off\n" + " +oall Turn all optimisations on\n" + " ~oall Turn all optimisations off\n" + " -p Create an ST .prg (without symbols)\n" + " -ps Create an ST .prg (with symbols)\n" + " Forces -fa\n" + " -r[size] Pad segments to boundary size specified\n" + " w: word (2 bytes, default alignment)\n" + " l: long (4 bytes)\n" + " p: phrase (8 bytes)\n" + " d: double phrase (16 bytes)\n" + " q: quad phrase (32 bytes)\n" + " -s Warn about possible short branches\n" + " and applied optimisations\n" + " -u Force referenced and undefined symbols global\n" + " -v Set verbose mode\n" + " -x Turn on debugging mode\n" + " -y[pagelen] Set page line length (default: 61)\n" + "\n", cmdlnexec); } + // -// --- Display Version Information --------------------------------------------- +// Display version information // - -void display_version(void) +void DisplayVersion(void) { - printf("\nReboot's Macro Assembler for Atari Jaguar\n"); - printf("Copyright (C) 199x Landon Dyer, 2011 Reboot\n"); - printf("V%01i.%01i.%01i %s (%s)\n\n", MAJOR, MINOR, PATCH, __DATE__, PLATFORM); + printf("\n" + " _ __ _ __ ___ __ _ ___ \n" + "| '__| '_ ` _ \\ / _` |/ __|\n" + "| | | | | | | | (_| | (__ \n" + "|_| |_| |_| |_|\\__,_|\\___|\n" + "\nReboot's Macro Assembler\n" + "Copyright (C) 199x Landon Dyer, 2011-2017 Reboot\n" + "V%01i.%01i.%01i %s (%s)\n\n", MAJOR, MINOR, PATCH, __DATE__, PLATFORM); } -// -// --- Process Command Line Arguments and do an Assembly ------------------------------------------- + // +// Parse optimisation options +// +int ParseOptimization(char * optstring) +{ + int onoff = 0; + + if (*optstring == '+') + onoff = 1; + else if (*optstring != '~') + return ERROR; + + if ((optstring[2] == 'a' || optstring[2] == 'A') + && (optstring[3] == 'l' || optstring[3] == 'L') + && (optstring[4] == 'l' || optstring[4] == 'L')) + { + memset(optim_flags, onoff, OPT_COUNT * sizeof(int)); + return OK; + } + else if (optstring[1] == 'o' || optstring[1] == 'O') // Turn on specific optimisation + { + int opt_no = atoi(&optstring[2]); -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 - 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 - 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 ((opt_no >= 0) && (opt_no < OPT_COUNT)) + { + optim_flags[opt_no] = onoff; + return OK; + } + else + return ERROR; + } + else + { + return ERROR; + } } -#if 0 + // -// --- Interactive Mode ---------------------------------------------------------------------------- +// Process command line arguments and do an assembly // - -void interactive(void) +int Process(int argc, char ** argv) { - 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(;;) + 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 + segpadsize = 2; // Initialise segment padding size + + // Initialise modules + InitSymbolTable(); // Symbol table + InitTokenizer(); // Tokenizer + InitLineProcessor(); // Line processor + InitExpression(); // Expression analyzer + InitSection(); // Section manager / code generator + InitMark(); // Mark tape-recorder + InitMacro(); // Macro processor + InitListing(); // Listing generator + + // Process command line arguments and assemble source files + for(argno=0; argno + case 'F': + switch (argv[argno][2]) + { + case EOS: + case 'a': // -fa = Alcyon [the default] + case 'A': + obj_format = ALCYON; + break; + case 'b': // -fb = BSD (Jaguar Recommended: 3 out 4 jaguars recommend it!) + case 'B': + obj_format = BSD; + break; + case 'e': // -fe = ELF + case 'E': + obj_format = ELF; + 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 'p': /* -p: generate ".PRG" executable output */ + case 'P': + /* + * -p .PRG generation w/o symbols + * -ps .PRG generation with symbols + */ + switch (argv[argno][2]) + { + case EOS: + prg_flag = 1; + break; + + case 's': + case 'S': + prg_flag = 2; + break; + + default: + printf("-p: syntax error\n"); + ++errcnt; + return errcnt; + } + + // Enforce Alcyon object format - kind of silly + // to ask for .prg output without it! + obj_format = ALCYON; + 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) + DisplayVersion(); + + break; + case 'x': // Turn on debugging + case 'X': + debug = 1; + printf("~ Debugging ON\n"); + break; + case 'y': // -y + 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 '?': + DisplayVersion(); + DisplayHelp(); + errcnt++; + break; + case 'n': // Turn off legacy mode + case 'N': + legacy_flag = 0; + printf("Legacy mode OFF\n"); + break; + default: + DisplayVersion(); + printf("Unknown switch: %s\n\n", argv[argno]); + DisplayHelp(); + errcnt++; + break; + } + } + else if (*argv[argno] == '+' || *argv[argno] == '~') + { + if (ParseOptimization(argv[argno]) != OK) + { + DisplayVersion(); + printf("Unknown switch: %s\n\n", argv[argno]); + DisplayHelp(); + 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(); + } + } + + // 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). + SaveSection(); + + for(i=TEXT; i<=BSS; i<<=1) + { + SwitchSection(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; + } + + SaveSection(); + } + + if (objfname == NULL) + { + if (firstfname == NULL) + firstfname = defname; + + strcpy(fnbuf, firstfname); + fext(fnbuf, (prg_flag ? ".prg" : ".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 = (prg_flag ? "executable" : "object"); + printf("[Writing %s file: %s]\n", s, objfname); } - if (argcnt == 0) // Exit if no arguments - break; + WriteObject(fd); + close(fd); - process(argcnt, argv); // Process arguments + if (errcnt != 0) + unlink(objfname); + } + + if (list_flag) + { + if (verb_flag) + printf("[Wrapping-up listing file]\n"); - if (errcnt) - printf("%d assembly error%s\n", errcnt, (errcnt > 1) ? "s" : ""); + 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 GetEndianess(void) { int i = 1; char * p = (char *)&i; @@ -798,37 +578,33 @@ int get_endianess(void) return 1; } + // -// --- Application Entry Point; Handle the Command Line -------------------------------------------- +// Application entry point // - int main(int argc, char ** argv) { - int status; // Status flag - int i; + perm_verb_flag = 0; // Clobber "permanent" verbose flag + legacy_flag = 1; // Default is legacy mode on (:-P) - perm_verb_flag = 0; // Clobber "permanent" verbose flag - cmdlnexec = argv[0]; // Obtain executable name + // Set legacy optimisation flags to on + // and everything else to off + memset(optim_flags, 0, OPT_COUNT * sizeof(int)); + optim_flags[OPT_ABS_SHORT] = + optim_flags[OPT_MOVEL_MOVEQ] = + optim_flags[OPT_BSR_BCC_S] = 1; - endian = get_endianess(); // Get processor endianess + cmdlnexec = argv[0]; // Obtain executable name - for(i=0; i 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(); - } + return Process(argc - 1, argv + 1); - return status; + DisplayVersion(); + DisplayHelp(); + + return 0; } +