X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?p=rmac;a=blobdiff_plain;f=direct.c;h=b2e67998e863a7a216e16b8b8b4f2bd8dd39599d;hp=54a185f5ccb32890b083536f62b00da4a14ccca8;hb=60f204cb9e3905100da0d89f14bb40db764acd9e;hpb=d28f432296e812643e236d1bfc9b556a7b11c461 diff --git a/direct.c b/direct.c index 54a185f..b2e6799 100644 --- a/direct.c +++ b/direct.c @@ -1,14 +1,14 @@ // // RMAC - Reboot's Macro Assembler for the Atari Jaguar Console System // DIRECT.C - Directive Handling -// Copyright (C) 199x Landon Dyer, 2011 Reboot and Friends +// Copyright (C) 199x Landon Dyer, 2017 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 "direct.h" #include "sect.h" -#include "risca.h" +#include "riscasm.h" #include "error.h" #include "token.h" #include "procln.h" @@ -21,1156 +21,1619 @@ #define DEF_KW #include "kwtab.h" -TOKEN exprbuf[128]; // Expression buffer + +TOKEN exprbuf[128]; // Expression buffer +SYM * symbolPtr[1000000]; // Symbol pointers table +static long unused; // For supressing 'write' warnings +char buffer[256]; // Scratch buffer for messages + // Directive handler table int (*dirtab[])() = { - d_org, // 0 org - d_even, // 1 even - d_unimpl, // 2 .6502 - d_68000, // 3 .68000 - d_bss, // 4 bss - d_data, // 5 data - d_text, // 6 text - d_abs, // 7 abs - d_comm, // 8 comm - d_init, // 9 init - d_cargs, // 10 cargs - d_goto, // 11 goto - d_dc, // 12 dc - d_ds, // 13 ds - d_undmac, // 14 undefmac - d_gpu, // 15 .gpu - d_dsp, // 16 .dsp - d_dcb, // 17 dcb - d_unimpl, // 18* set - d_unimpl, // 19* reg - d_unimpl, // 20 dump - d_incbin, // 21 .incbin //load - d_unimpl, // 22 disable - d_unimpl, // 23 enable - d_globl, // 24 globl - d_regbank0, // 25 .regbank0 - d_regbank1, // 26 .regbank1 - d_unimpl, // 27 xdef - d_assert, // 28 assert - d_unimpl, // 29* if - d_unimpl, // 30* endif - d_unimpl, // 31* endc - d_unimpl, // 32* iif - d_include, // 33 include - fpop, // 34 end - d_unimpl, // 35* macro - exitmac, // 36* exitm - d_unimpl, // 37* endm - d_list, // 38 list - d_nlist, // 39 nlist - d_long, // 40* rept - d_phrase, // 41* endr - d_dphrase, // 42 struct - d_qphrase, // 43 ends - d_title, // 44 title - d_subttl, // 45 subttl - eject, // 46 eject - d_unimpl, // 47 error - d_unimpl, // 48 warn - d_noclear, // 49 .noclear - d_equrundef, // 50 .equrundef/.regundef - d_ccundef, // 51 .ccundef - d_print, // 52 .print - d_gpumain, // 53 .gpumain - d_jpad, // 54 .jpad - d_nojpad, // 55 .nojpad - d_fail, // 56 .fail + d_org, // 0 org + d_even, // 1 even + d_unimpl, // 2 .6502 + d_68000, // 3 .68000 + d_bss, // 4 bss + d_data, // 5 data + d_text, // 6 text + d_abs, // 7 abs + d_comm, // 8 comm + (void *)d_init, // 9 init + d_cargs, // 10 cargs + (void *)d_goto, // 11 goto + (void *)d_dc, // 12 dc + (void *)d_ds, // 13 ds + d_undmac, // 14 undefmac + d_gpu, // 15 .gpu + d_dsp, // 16 .dsp + (void *)d_dcb, // 17 dcb + d_unimpl, // 18* set + d_unimpl, // 19* reg + d_unimpl, // 20 dump + d_incbin, // 21 .incbin //load + d_unimpl, // 22 disable + d_unimpl, // 23 enable + d_globl, // 24 globl + d_regbank0, // 25 .regbank0 + d_regbank1, // 26 .regbank1 + d_unimpl, // 27 xdef + d_assert, // 28 assert + d_unimpl, // 29* if + d_unimpl, // 30* endif + d_unimpl, // 31* endc + d_unimpl, // 32* iif + d_include, // 33 include + fpop, // 34 end + d_unimpl, // 35* macro + ExitMacro, // 36* exitm + d_unimpl, // 37* endm + d_list, // 38 list + d_nlist, // 39 nlist + d_long, // 40* rept + d_phrase, // 41* endr + d_dphrase, // 42 struct + d_qphrase, // 43 ends + d_title, // 44 title + d_subttl, // 45 subttl + eject, // 46 eject + d_error, // 47 error + d_warn, // 48 warn + d_noclear, // 49 .noclear + d_equrundef, // 50 .equrundef/.regundef + d_ccundef, // 51 .ccundef + d_print, // 52 .print + d_cstruct, // 53 .cstruct + d_jpad, // 54 .jpad (deprecated) + d_nojpad, // 55 .nojpad (deprecated) + d_gpumain, // 56 .gpumain (deprecated) + d_prgflags, // 57 .prgflags + d_opt, // 58 .opt }; -// -// --- .org - Set origin --------------------------------------------------------------------------- -// -int d_fail(void) { - fatal("user abort"); - return(0); -} - -// -// --- .org - Set origin --------------------------------------------------------------------------- // +// .error - Abort compilation, printing an error message +// +int d_error(char *str) +{ + if (*tok == EOL) + return error("error directive encountered - aborting assembling"); + else + { + switch(*tok) + { + case STRING: + return error(string[tok[1]]); + break; + default: + return error("error directive encountered - aborting assembling"); + } + } +} -int d_org(void) { - VALUE address; - if(!rgpu && !rdsp) - return(error(".org permitted only in gpu/dsp section")); +// +// .warn - Just display a warning on screen +// +int d_warn(char *str) +{ + if (*tok == EOL) + return warn("WARNING WARNING WARNING"); + else + { + switch(*tok) + { + case STRING: + return warn(string[tok[1]]); + break; + default: + return warn("WARNING WARNING WARNING"); + } + } +} - orgaddr = 0; - if(abs_expr(&address) == ERROR) { - error("cannot determine org'd address"); - return(ERROR); - } +// +// .org - Set origin +// +int d_org(void) +{ + VALUE address; - orgaddr = address; - orgactive = 1; + if (!rgpu && !rdsp) + return error(".org permitted only in gpu/dsp section"); - return(0); -} + orgaddr = 0; -// -// --- NOP Padding Directive ----------------------------------------------------------------------- -// + if (abs_expr(&address) == ERROR) + { + error("cannot determine org'd address"); + return ERROR; + } -int d_jpad(void) { - jpad = 1; - return(0); -} + orgaddr = address; + orgactive = 1; +//printf("ORG: address = $%08X...\n", orgaddr); -int d_nojpad(void) { - jpad = 0; - return(0); + return 0; } + // -// --- Print Directive ----------------------------------------------------------------------------- -// - -int d_print(void) { - char prntstr[LNSIZ]; // String for PRINT directive - char format[LNSIZ]; // Format for PRINT directive - int formatting = 0; // Formatting on/off - int wordlong = 0; // WORD = 0, LONG = 1 - int outtype = 0; // 0:hex, 1:decimal, 2:unsigned - - VALUE eval; // Expression value - WORD eattr; // Expression attributes - SYM *esym; // External symbol involved in expr. - TOKEN r_expr[EXPRSIZE]; - - while(*tok != EOL) { - switch(*tok) { - case STRING: - sprintf(prntstr, "%s", (char*)tok[1]); - printf("%s", prntstr); - if(list_fd) - write(list_fd, prntstr, (LONG)strlen(prntstr)); - tok+=2; - break; - case '/': - formatting = 1; - if(tok[1] != SYMBOL) goto token_err; - strcpy(prntstr, (char*)tok[2]); - switch(prntstr[0]) { - case 'l': case 'L': wordlong = 1; break; - case 'w': case 'W': wordlong = 0; break; - case 'x': case 'X': outtype = 0; break; - case 'd': case 'D': outtype = 1; break; - case 'u': case 'U': outtype = 2; break; - default: - error("unknown print format flag"); - return(ERROR); - } - tok += 3; - break; - case ',': - tok++; - break; - default: - if(expr(r_expr, &eval, &eattr, &esym) != OK) - goto token_err; - else { - switch(outtype) { - case 0: strcpy(format, "%X"); break; - case 1: strcpy(format, "%d" ); break; - case 2: strcpy(format, "%u" ); break; - } - if(wordlong) sprintf(prntstr, format, eval); - else sprintf(prntstr, format, eval & 0xFFFF); - printf("%s", prntstr); - if(list_fd) - write(list_fd, prntstr, (LONG)strlen(prntstr)); - formatting = 0; - wordlong = 0; - outtype = 0; - } - break; - } - } - - printf("\n"); - println("\n"); - - return(0); - - token_err: - error("illegal print token"); - return(ERROR); +// Print directive +// +int d_print(void) +{ + char prntstr[LNSIZ]; // String for PRINT directive + char format[LNSIZ]; // Format for PRINT directive + int formatting = 0; // Formatting on/off + int wordlong = 0; // WORD = 0, LONG = 1 + int outtype = 0; // 0:hex, 1:decimal, 2:unsigned + + VALUE eval; // Expression value + WORD eattr; // Expression attributes + SYM * esym; // External symbol involved in expr. + TOKEN r_expr[EXPRSIZE]; + + while (*tok != EOL) + { + switch(*tok) + { + case STRING: + sprintf(prntstr, "%s", string[tok[1]]); + printf("%s", prntstr); + + if (list_fd) + unused = write(list_fd, prntstr, (LONG)strlen(prntstr)); + + tok += 2; + break; + case '/': + formatting = 1; + + if (tok[1] != SYMBOL) + goto token_err; + +// strcpy(prntstr, (char *)tok[2]); + strcpy(prntstr, string[tok[2]]); + + switch(prntstr[0]) + { + case 'l': case 'L': wordlong = 1; break; + case 'w': case 'W': wordlong = 0; break; + case 'x': case 'X': outtype = 0; break; + case 'd': case 'D': outtype = 1; break; + case 'u': case 'U': outtype = 2; break; + default: + error("unknown print format flag"); + return ERROR; + } + + tok += 3; + break; + case ',': + tok++; + break; + default: + if (expr(r_expr, &eval, &eattr, &esym) != OK) + goto token_err; + else + { + switch(outtype) + { + case 0: strcpy(format, "%X"); break; + case 1: strcpy(format, "%d" ); break; + case 2: strcpy(format, "%u" ); break; + } + + if (wordlong) + sprintf(prntstr, format, eval); + else + sprintf(prntstr, format, eval & 0xFFFF); + + printf("%s", prntstr); + + if (list_fd) + unused = write(list_fd, prntstr, (LONG)strlen(prntstr)); + + formatting = 0; + wordlong = 0; + outtype = 0; + } + + break; + } + } + + printf("\n"); + + return 0; + +token_err: + error("illegal print token"); + return ERROR; } + // -// --- Undefine an Equated Condition Code ---------------------------------------------------------- +// Undefine an equated condition code // +int d_ccundef(void) +{ + SYM * ccname; -int d_ccundef(void) { - SYM *ccname; + // Check that we are in a RISC section + if (!rgpu && !rdsp) + { + error(".ccundef must be defined in .gpu/.dsp section"); + return ERROR; + } - if(!rgpu && !rdsp) { // Check that we are in a RISC section - error(".ccundef must be defined in .gpu/.dsp section"); - return(ERROR); - } - if(*tok != SYMBOL) { - error(syntax_error); - return(ERROR); - } - ccname = lookup((char *)tok[1], LABEL, 0); - if(!ccname || !(ccname->sattre & EQUATEDCC)) { // Make sure symbol is a valid ccdef - error("invalid equated condition name specified"); - return(ERROR); - } + if (*tok != SYMBOL) + { + error("syntax error; expected symbol"); + return ERROR; + } - ccname->sattre |= UNDEF_CC; + ccname = lookup(string[tok[1]], LABEL, 0); - return(0); + // Make sure symbol is a valid ccdef + if (!ccname || !(ccname->sattre & EQUATEDCC)) + { + error("invalid equated condition name specified"); + return ERROR; + } + + ccname->sattre |= UNDEF_CC; + + return 0; } + // -// --- Undefine an Equated Register ---------------------------------------------------------------- +// Undefine an equated register // +int d_equrundef(void) +{ + SYM * regname; -int d_equrundef(void) { - SYM *regname; + // Check that we are in a RISC section + if (!rgpu && !rdsp) + return error(".equrundef/.regundef must be defined in .gpu/.dsp section"); - if(!rgpu && !rdsp) { // Check that we are in a RISC section - error(".equrundef/.regundef must be defined in .gpu/.dsp section"); - return(ERROR); - } + while (*tok != EOL) + { + // Skip preceeding or seperating commas (if any) + if (*tok == ',') + tok++; - while(*tok != EOL) { - if(*tok == ',') tok++; // Skip preceeding or seperating commas + // Check we are dealing with a symbol + if (*tok != SYMBOL) + return error("syntax error; expected symbol"); - if(*tok != SYMBOL) { // Check we are dealing with a symbol - error(syntax_error); - return(ERROR); - } + // Lookup and undef if equated register + regname = lookup(string[tok[1]], LABEL, 0); - regname = lookup((char *)tok[1], LABEL, 0); // Lookup and undef if equated register - if(regname && (regname->sattre & EQUATEDREG)) - regname->sattre |= UNDEF_EQUR; + if (regname && (regname->sattre & EQUATEDREG)) + { + // Reset the attributes of this symbol... + regname->sattr = 0; + regname->sattre &= ~(EQUATEDREG | BANK_0 | BANK_1); + regname->sattre |= UNDEF_EQUR; + } - tok += 2; // Skip over symbol token and address - } + // Skip over symbol token and address + tok += 2; + } - return(0); + return 0; } + // -// --- Do Not Allow the Use of the CLR.L Opcode ---------------------------------------------------- +// Do not allow use of the CLR.L opcode // - -int d_noclear(void) { - return(0); +int d_noclear(void) +{ + warn("CLR.L opcode ignored..."); + return 0; } -// -// --- Include Binary File ------------------------------------------------------------------------- -// - -int d_incbin(void) { - int i, j; - int bytes = 0; - long pos, size; - char buf; - - if(*tok != STRING) { - error(syntax_error); - return(ERROR); - } - - if((j = open((char *)tok[1], _OPEN_INC)) >= 0) { - size = lseek(j, 0L, SEEK_END); - chcheck(size); - pos = lseek(j, 0L, SEEK_SET); - - for(i = 0; i < size; i++) { - buf = '\0'; - bytes = read(j, &buf, 1); - D_byte(buf); - } - - } else { - errors("cannot open include binary file (%s)", (char*)tok[1]); - return(ERROR); - } - - close(j); - return(0); -} - -// -// --- Set RISC Register Banks --------------------------------------------------------------------- + // +// Include binary file +// +int d_incbin(void) +{ + int fd; + int bytes = 0; + long pos, size, bytesRead; + char msg[256]; + char buf1[256]; + int i; -int d_regbank0(void) { - regbank = BANK_0; // Set active register bank zero - return(0); -} + // Check to see if we're in BSS, and, if so, throw an error + if (scattr & SBSS) + { + errors("cannot include binary file \"%s\" in BSS section", string[tok[1]]); + return ERROR; + } + + if (*tok != STRING) + { + error("syntax error; string missing"); + return ERROR; + } + + // Attempt to open the include file in the current directory, then (if that + // failed) try list of include files passed in the enviroment string or by + // the "-d" option. + if ((fd = open(string[tok[1]], _OPEN_INC)) < 0) + { + for(i=0; nthpath("RMACPATH", i, buf1)!=0; i++) + { + fd = strlen(buf1); + + // Append path char if necessary + if (fd > 0 && buf1[fd - 1] != SLASHCHAR) + strcat(buf1, SLASHSTRING); + + strcat(buf1, string[tok[1]]); + + if ((fd = open(buf1, _OPEN_INC)) >= 0) + goto allright; + } + + return errors("cannot open: \"%s\"", string[tok[1]]); + } + +allright: + + size = lseek(fd, 0L, SEEK_END); + pos = lseek(fd, 0L, SEEK_SET); + chcheck(size); -int d_regbank1(void) { - regbank = BANK_1; // Set active register bank one - return(0); + DEBUG { printf("INCBIN: File '%s' is %li bytes.\n", string[tok[1]], size); } + + char * fileBuffer = (char *)malloc(size); + bytesRead = read(fd, fileBuffer, size); + + if (bytesRead != size) + { + sprintf(msg, "was only able to read %li bytes from binary file (%s, %li bytes)", bytesRead, string[tok[1]], size); + error(msg); + return ERROR; + } + + memcpy(chptr, fileBuffer, size); + chptr += size; + sloc += size; + ch_size += size; + + if (orgactive) + orgaddr += size; + + free(fileBuffer); + close(fd); + return 0; } + // -// --- Adjust Location to an EVEN Value ------------------------------------------------------------ +// Set RISC register banks // - -int d_even(void) { - if(sloc & 1) { - if((scattr & SBSS) == 0) { - chcheck(1); - D_byte(0); - } else { - ++sloc; - } - } +int d_regbank0(void) +{ + // Set active register bank zero + regbank = BANK_0; + return 0; +} - return(0); + +int d_regbank1(void) +{ + // Set active register bank one + regbank = BANK_1; + return 0; } + // -// --- Adjust Location to an LONG Value ------------------------------------------------------------ +// Helper function, to cut down on mistakes & typing // +static inline void SkipBytes(unsigned bytesToSkip) +{ + if (!bytesToSkip) + return; -int d_long(void) { - unsigned i; - unsigned val = 4; - - i = sloc & ~(val - 1); - if(i != sloc) val = val - (sloc - i); - else val = 0; + if ((scattr & SBSS) == 0) + { + chcheck(bytesToSkip); + D_ZEROFILL(bytesToSkip); + } + else + { + sloc += bytesToSkip; - if(val) { - if((scattr & SBSS) == 0) { - chcheck(val); - for(i = 0; i < val; i++) - D_byte(0); - } else { - sloc += val; - } - } - - return(0); + if (orgactive) + orgaddr += bytesToSkip; + } } + // -// --- Adjust Location to an PHRASE Value ---------------------------------------------------------- +// Adjust location to an EVEN value // +int d_even(void) +{ + unsigned skip = (rgpu || rdsp ? orgaddr : sloc) & 0x01; -int d_phrase(void) { - unsigned i; - unsigned val = 8; - - i = sloc & ~(val - 1); - if(i != sloc) val = val - (sloc - i); - else val = 0; + if (skip) + { + if ((scattr & SBSS) == 0) + { + chcheck(1); + D_byte(0); + } + else + { + sloc++; - if(val) { - if((scattr & SBSS) == 0) { - chcheck(val); - for(i = 0; i < val; i++) - D_byte(0); - } else { - sloc += val; - } - } + if (orgactive) + orgaddr++; + } + } - return(0); + return 0; } + // -// --- Adjust Location to an DPHRASE Value --------------------------------------------------------- +// Adjust location to a LONG value // +int d_long(void) +{ + unsigned lower2Bits = (rgpu || rdsp ? orgaddr : sloc) & 0x03; + unsigned bytesToSkip = (0x04 - lower2Bits) & 0x03; + SkipBytes(bytesToSkip); + + return 0; +} -int d_dphrase(void) { - unsigned i; - unsigned val = 16; - - i = sloc & ~(val - 1); - if(i != sloc) val = val - (sloc - i); - else val = 0; - if(val) { - if((scattr & SBSS) == 0) { - chcheck(val); - for(i = 0; i < val; i++) - D_byte(0); - } else { - sloc += val; - } - } +// +// Adjust location to a PHRASE value +// +// N.B.: We have to handle the GPU/DSP cases separately because you can embed +// RISC code in the middle of a regular 68K section. Also note that all +// of the alignment pseudo-ops will have to be fixed this way. +// +// This *must* behave differently when in a RISC section, as following sloc +// (instead of orgaddr) will fuck things up royally. Note that we do it this +// way because you can embed RISC code in a 68K section, and have the origin +// pointing to a different alignment in the RISC section than the 68K section. +// +int d_phrase(void) +{ + unsigned lower3Bits = (rgpu || rdsp ? orgaddr : sloc) & 0x07; + unsigned bytesToSkip = (0x08 - lower3Bits) & 0x07; + SkipBytes(bytesToSkip); - return(0); + return 0; } + // -// --- Adjust Location to an QPHRASE Value --------------------------------------------------------- +// Adjust location to a DPHRASE value // +int d_dphrase(void) +{ + unsigned lower4Bits = (rgpu || rdsp ? orgaddr : sloc) & 0x0F; + unsigned bytesToSkip = (0x10 - lower4Bits) & 0x0F; + SkipBytes(bytesToSkip); -int d_qphrase(void) { - unsigned i; - unsigned val = 32; - - i = sloc & ~(val - 1); - if(i != sloc) val = val - (sloc - i); - else val = 0; + return 0; +} - if(val) { - if((scattr & SBSS) == 0) { - savsect(); - chcheck(val); - for(i = 0; i < val; i++) - D_byte(0); - } else { - sloc += val; - } - } - return(0); +// +// Adjust location to a QPHRASE value +// +int d_qphrase(void) +{ + unsigned lower5Bits = (rgpu || rdsp ? orgaddr : sloc) & 0x1F; + unsigned bytesToSkip = (0x20 - lower5Bits) & 0x1F; + SkipBytes(bytesToSkip); + + return 0; } + // -// ------------------------------------------------------------------------------------------------- // Do auto-even. This must be called ONLY if 'sloc' is odd. // -// This is made hairy because, if there was a label on the line, we also have to adjust its value. -// This won't work with more than one label on the line, which is OK since multiple labels are only -// allowed in AS68 kludge mode, and the C compiler is VERY paranoid and uses ".even" whenever it can -// ------------------------------------------------------------------------------------------------- +// This is made hairy because, if there was a label on the line, we also have +// to adjust its value. This won't work with more than one label on the line, +// which is OK since multiple labels are only allowed in AS68 kludge mode, and +// the C compiler is VERY paranoid and uses ".even" whenever it can // +// N.B.: This probably needs the same fixes as above... +// +void auto_even(void) +{ + if (scattr & SBSS) + sloc++; // Bump BSS section + else + D_byte(0); // Deposit 0.b in non-BSS -void auto_even(void) { - if(scattr & SBSS) - ++sloc; // Bump BSS section - else { - D_byte(0) // Deposit 0.b in non-BSS - } - - if(lab_sym != NULL) // Bump label if we have to - ++lab_sym->svalue; + if (lab_sym != NULL) // Bump label if we have to + lab_sym->svalue++; } + // -// --- Unimplemened Directive Error ---------------------------------------------------------------- +// Unimplemened directive error // - -int d_unimpl(void) { - return(error("unimplemented directive")); +int d_unimpl(void) +{ + return error("unimplemented directive"); } -// -// --- Return absolute (not TDB) and defined expression or return an error ------------------------- + +// +// Return absolute (not TDB) and defined expression or return an error // +int abs_expr(VALUE * a_eval) +{ + WORD eattr; -int abs_expr(VALUE *a_eval) { - WORD eattr; + if (expr(exprbuf, a_eval, &eattr, NULL) < 0) + return ERROR; - if(expr(exprbuf, a_eval, &eattr, NULL) < 0) - return(ERROR); - if(!(eattr & DEFINED)) - return(error(undef_error)); - if(eattr & TDB) - return(error(rel_error)); + if (!(eattr & DEFINED)) + return error(undef_error); - return(OK); + if (eattr & TDB) + return error(rel_error); + + return OK; } + // -// --- Hand symbols in a symbol-list to a function (kind of like mapcar...) ------------------------ +// Hand symbols in a symbol-list to a function (kind of like mapcar...) // +int symlist(int(* func)()) +{ + const char * em = "symbol list syntax"; + + for(;;) + { + if (*tok != SYMBOL) + return error(em); + + if ((*func)(string[tok[1]]) != OK) + break; -int symlist(int(*func)()) { - char *em = "symbol list syntax"; + tok += 2; - for(;;) { - if(*tok != SYMBOL) return(error(em)); - if((*func)(tok[1]) != OK) break; - tok += 2; - if(*tok == EOL) break; - if(*tok != ',') return(error(em)); - ++tok; - } + if (*tok == EOL) + break; - return(0); + if (*tok != ',') + return error(em); + + tok++; + } + + return 0; } + // -// --- .include "filename" ------------------------------------------------------------------------- -// - -int d_include(void) { - int j; - int i; - char *fn; - char buf[128]; - char buf1[128]; - - if(*tok == STRING) // Leave strings ALONE - fn = (char *)*++tok; - else if(*tok == SYMBOL) { // Try to append ".s" to symbols - strcpy(buf, (char *)*++tok); - fext(buf, ".s", 0); - fn = &buf[0]; - } else // Punt if no STRING or SYMBOL - return(error("missing filename")); - - // Make sure the user didn't try anything like: - // .include equates.s - if(*++tok != EOL) return(error("extra stuff after filename -- enclose it in quotes")); - - // Attempt to open the include file in the current directory, then (if that failed) try list - // of include files passed in the enviroment string or by the "-d" option. - if((j = open(fn, 0)) < 0) { - for(i = 0; nthpath("RMACPATH", i, buf1) != 0; ++i) { - j = strlen(buf1); - if(j > 0 && buf1[j-1] != SLASHCHAR) // Append path char if necessary - strcat(buf1, SLASHSTRING); - strcat(buf1, fn); - if((j = open(buf1, 0)) >= 0) - goto allright; - } - - return(errors("cannot open: \"%s\"", fn)); - } - - allright: - - include(j, fn); - return(0); +// .include "filename" +// +int d_include(void) +{ + int j; + int i; + char * fn; + char buf[128]; + char buf1[128]; + + if (*tok == STRING) // Leave strings ALONE + fn = string[*++tok]; + else if (*tok == SYMBOL) // Try to append ".s" to symbols + { + strcpy(buf, string[*++tok]); + fext(buf, ".s", 0); + fn = &buf[0]; + } + else // Punt if no STRING or SYMBOL + return error("missing filename"); + + // Make sure the user didn't try anything like: + // .include equates.s + if (*++tok != EOL) + return error("extra stuff after filename -- enclose it in quotes"); + + // Attempt to open the include file in the current directory, then (if that + // failed) try list of include files passed in the enviroment string or by + // the "-i" option. + if ((j = open(fn, 0)) < 0) + { + for(i=0; nthpath("RMACPATH", i, buf1)!=0; i++) + { + j = strlen(buf1); + + // Append path char if necessary + if (j > 0 && buf1[j - 1] != SLASHCHAR) + strcat(buf1, SLASHSTRING); + + strcat(buf1, fn); + + if ((j = open(buf1, 0)) >= 0) + goto allright; + } + + return errors("cannot open: \"%s\"", fn); + } + +allright: + include(j, fn); + return 0; } + // -// --- .assert expression [, expression...] -------------------------------------------------------- +// .assert expression [, expression...] // +int d_assert(void) +{ + WORD eattr; + VALUE eval; + + for(; expr(exprbuf, &eval, &eattr, NULL)==OK; ++tok) + { + if (!(eattr & DEFINED)) + return error("forward or undefined .assert"); -int d_assert(void) { - WORD eattr; - VALUE eval; + if (!eval) + return error("assert failure"); - for(; expr(exprbuf, &eval, &eattr, NULL) == OK; ++tok) { - if(!(eattr & DEFINED)) - return(error("forward or undefined .assert")); - if(!eval) - return(error("assert failure")); - if(*tok != ',') - break; - } - at_eol(); - return(0); + if (*tok != ',') + break; + } + + at_eol(); + return 0; } + // -// --- .globl symbol [, symbol] <<>> ----------------------------- +// .globl symbol [, symbol] <<>> // +int globl1(char * p) +{ + SYM * sy; -int globl1(char *p) { - SYM *sy; + if (*p == '.') + return error("cannot .globl local symbol"); - if(*p == '.') - return(error("cannot .globl local symbol")); - if((sy = lookup(p, LABEL, 0)) == NULL) { - sy = newsym(p, LABEL, 0); - sy->svalue = 0; - sy->sattr = GLOBAL; - } else - sy->sattr |= GLOBAL; + if ((sy = lookup(p, LABEL, 0)) == NULL) + { + sy = NewSymbol(p, LABEL, 0); + sy->svalue = 0; + sy->sattr = GLOBAL; +//printf("glob1: Making global symbol: attr=%04X, eattr=%08X, %s\n", sy->sattr, sy->sattre, sy->sname); + } + else + sy->sattr |= GLOBAL; - return(OK); + return OK; } -int d_globl(void) { - symlist(globl1); - return(0); + +int d_globl(void) +{ + symlist(globl1); + return 0; } + // -// --- .abs [expression] --------------------------------------------------------------------------- +// .prgflags expression // +int d_prgflags(void) +{ + VALUE eval; -int d_abs(void) { - VALUE eval; + if (*tok == EOL) + return error("PRGFLAGS requires value"); + else if (abs_expr(&eval) == OK) + { + PRGFLAGS=eval; + return 0; + } + else + { + return error("PRGFLAGS requires value"); + } +} + + +// +// .abs [expression] +// +int d_abs(void) +{ + VALUE eval; + + SaveSection(); - savsect(); - if(*tok == EOL) - eval = 0; - else - if(abs_expr(&eval) != OK) - return(0); + if (*tok == EOL) + eval = 0; + else if (abs_expr(&eval) != OK) + return 0; - switchsect(ABS); - sloc = eval; - return(0); + SwitchSection(ABS); + sloc = eval; + return 0; } + // -// --- Switch Segments ----------------------------------------------------------------------------- +// Switch segments // +int d_text(void) +{ + if (rgpu || rdsp) + return error("directive forbidden in gpu/dsp mode"); -int d_text(void) { - if(rgpu || rdsp) - return(error("directive forbidden in gpu/dsp mode")); + if (cursect != TEXT) + { + SaveSection(); + SwitchSection(TEXT); + } - if(cursect != TEXT) { - savsect(); - switchsect(TEXT); - } - return(0); + return 0; } -int d_data(void) { - if(rgpu || rdsp) - return(error("directive forbidden in gpu/dsp mode")); - if(cursect != DATA) { - savsect(); - switchsect(DATA); - } - return(0); +int d_data(void) +{ + if (rgpu || rdsp) + return error("directive forbidden in gpu/dsp mode"); + + if (cursect != DATA) + { + SaveSection(); + SwitchSection(DATA); + } + + return 0; } -int d_bss(void) { - if(rgpu || rdsp) - return(error("directive forbidden in gpu/dsp mode")); - if(cursect != BSS) { - savsect(); - switchsect(BSS); - } - return(0); +int d_bss(void) +{ + if (rgpu || rdsp) + return error("directive forbidden in gpu/dsp mode"); + + if (cursect != BSS) + { + SaveSection(); + SwitchSection(BSS); + } + + return 0; } + // -// --- .ds[.size] expression ----------------------------------------------------------------------- +// .ds[.size] expression // +int d_ds(WORD siz) +{ + DEBUG { printf("Directive: .ds.[size] = %u, sloc = $%X\n", siz, sloc); } + + VALUE eval; -int d_ds(WORD siz) { - VALUE eval; + // This gets kind of stupid. This directive is disallowed in normal 68000 + // mode ("for your own good!"), but is permitted for 6502 and Alcyon- + // compatibility modes. For obvious reasons, no auto-even is done in 8-bit + // processor modes. + if (as68_flag == 0 && (scattr & SBSS) == 0) + return error(".ds permitted only in BSS"); - // This gets kind of stupid. This directive is disallowed in normal 68000 mode ("for your own - // good!"), but is permitted for 6502 and Alcyon-compatibility modes. - // For obvious reasons, no auto-even is done in 8-bit processor modes. - if(as68_flag == 0 && (scattr & SBSS) == 0) - return(error(".ds permitted only in BSS")); + if ((siz != SIZB) && (sloc & 1)) // Automatic .even + auto_even(); - if(siz != SIZB && (sloc & 1)) // Automatic .even - auto_even(); + if (abs_expr(&eval) != OK) + return 0; - if(abs_expr(&eval) != OK) return(0); + // Check to see if the value being passed in is negative (who the hell does + // that?--nobody does; it's the code gremlins, or rum, that does it) + if (eval < 0) + return error("negative sizes not allowed"); - // In non-TDB section (BSS, ABS and M6502) just advance the location counter appropriately. - // In TDB sections, deposit (possibly large) chunks of zeroed memory.... - if((scattr & SBSS)) { - listvalue(eval); - eval *= siz; - sloc += eval; - just_bss = 1; // No data deposited (8-bit CPU mode) - } else { - dep_block(eval, siz, (VALUE)0, (WORD)(DEFINED|ABS), NULL); - } + // In non-TDB section (BSS, ABS and M6502) just advance the location + // counter appropriately. In TDB sections, deposit (possibly large) chunks + // of zeroed memory.... + if (scattr & SBSS) + { + listvalue(eval); + eval *= siz; + sloc += eval; + just_bss = 1; // No data deposited (8-bit CPU mode) + } + else + { + dep_block(eval, siz, (VALUE)0, (WORD)(DEFINED | ABS), NULL); + } - at_eol(); - return(0); + at_eol(); + return 0; } + // -// --- dc.b, dc.w / dc, dc.l ----------------------------------------------------------------------- -// - -int d_dc(WORD siz) { - WORD eattr; - VALUE eval; - WORD tdb; - WORD defined; - LONG i; - char *p; - int movei = 0; // movei flag for dc.i - - if((scattr & SBSS) != 0) - return(error("illegal initialization of section")); - - if((siz != SIZB) && (sloc & 1)) - auto_even(); - - for(;; ++tok) { - // dc.b 'string' [,] ... - if (siz == SIZB && *tok == STRING && (tok[2] == ',' || tok[2] == EOL)) { - i = strlen((const char*)tok[1]); - if((challoc - ch_size) < i) - chcheck(i); - for(p = (char *)tok[1]; *p != EOS; ++p) - D_byte(*p); - tok += 2; - goto comma; - } - - if(*tok == 'I') { - movei = 1; - tok++; - siz = SIZL; - } - - // dc.x - if(expr(exprbuf, &eval, &eattr, NULL) != OK) - return(0); - tdb = (WORD)(eattr & TDB); - defined = (WORD)(eattr & DEFINED); - if((challoc - ch_size) < 4) - chcheck(4L); - - switch(siz) { - case SIZB: - if(!defined) { - fixup(FU_BYTE|FU_SEXT, sloc, exprbuf); - D_byte(0); - } else { - if(tdb) - return(error("non-absolute byte value")); - if(eval + 0x100 >= 0x200) - return(error(range_error)); - D_byte(eval); - } - break; - case SIZW: - case SIZN: - if(!defined) { - fixup(FU_WORD|FU_SEXT, sloc, exprbuf); - D_word(0); - } else { - if(tdb) - rmark(cursect, sloc, tdb, MWORD, NULL); - if(eval + 0x10000 >= 0x20000) - return(error(range_error)); - // Deposit 68000 or 6502 (byte-reversed) word - D_word(eval); - } - break; - case SIZL: - if(!defined) { - if(movei) - fixup(FU_LONG|FU_MOVEI, sloc, exprbuf); - else - fixup(FU_LONG, sloc, exprbuf); - D_long(0); - } else { - if(tdb) - rmark(cursect, sloc, tdb, MLONG, NULL); - if(movei) - eval = ((eval >> 16) & 0x0000FFFF) | ((eval << 16) & 0xFFFF0000); - D_long(eval); - } - break; - } - - comma: - - if(*tok != ',') - break; - } - - at_eol(); - return(0); +// dc.b, dc.w / dc, dc.l, dc.i +// +int d_dc(WORD siz) +{ + WORD eattr; + VALUE eval; + uint8_t * p; + + if ((scattr & SBSS) != 0) + return error("illegal initialization of section"); + + // Do an auto_even if it's not BYTE sized (hmm, should we be doing this???) + if ((siz != SIZB) && (sloc & 1)) + auto_even(); + + // Check to see if we're trying to set LONGS on a non 32-bit aligned + // address in a GPU or DSP section, in their local RAM + if ((siz == SIZL) && (orgaddr & 0x03) + && ((rgpu && (orgaddr >= 0xF03000) && (orgaddr <= 0xF03FFFF)) + || (rdsp && (orgaddr >= 0xF1B000) && (orgaddr <= 0xF1CFFFF)))) + warn("depositing LONGs on a non-long address in local RAM"); + + for(;; tok++) + { + // dc.b 'string' [,] ... + if (siz == SIZB && *tok == STRING && (tok[2] == ',' || tok[2] == EOL)) + { + uint32_t i = strlen(string[tok[1]]); + + if ((challoc - ch_size) < i) + chcheck(i); + + for(p=string[tok[1]]; *p!=EOS; p++) + D_byte(*p); + + tok += 2; + goto comma; + } + + int movei = 0; // MOVEI flag for dc.i + + if (*tok == DOTI) + { + movei = 1; + tok++; + siz = SIZL; + } + + // dc.x + SYM * esym = 0; + + if (expr(exprbuf, &eval, &eattr, &esym) != OK) + return 0; + + uint16_t tdb = eattr & TDB; + uint16_t defined = eattr & DEFINED; + + if ((challoc - ch_size) < 4) + chcheck(4); + + switch (siz) + { + case SIZB: + if (!defined) + { + AddFixup(FU_BYTE | FU_SEXT, sloc, exprbuf); + D_byte(0); + } + else + { + if (eval + 0x100 >= 0x200) + { + sprintf(buffer, "%s (value = $%X)", range_error, eval); + return error(buffer); + } + + if (tdb) + return error("non-absolute byte value"); + + D_byte(eval); + } + + break; + case SIZW: + case SIZN: + if (!defined) + { + AddFixup(FU_WORD | FU_SEXT, sloc, exprbuf); + D_word(0); + } + else + { + if (eval + 0x10000 >= 0x20000) + return error(range_error); + + if (tdb) + MarkRelocatable(cursect, sloc, tdb, MWORD, NULL); + + // Deposit 68000 or 6502 (byte-reversed) word + D_word(eval); + } + + break; + case SIZL: + if (!defined) + { + if (movei) + AddFixup(FU_LONG | FU_MOVEI, sloc, exprbuf); + else + AddFixup(FU_LONG, sloc, exprbuf); + + D_long(0); + } + else + { + if (tdb) + MarkRelocatable(cursect, sloc, tdb, MLONG, NULL); + + if (movei) + eval = WORDSWAP32(eval); + + D_long(eval); + } + break; + } + +comma: + if (*tok != ',') + break; + } + + at_eol(); + return 0; } + // -// --- dcb[.siz] expr1,expr2 - Make 'expr1' copies of 'expr2' -------------------------------------- +// dcb[.siz] expr1,expr2 - Make 'expr1' copies of 'expr2' // +int d_dcb(WORD siz) +{ + VALUE evalc, eval; + WORD eattr; -int d_dcb(WORD siz) { - VALUE evalc, eval; - WORD eattr; + DEBUG { printf("dcb: section is %s%s%s (scattr=$%X)\n", (cursect & TEXT ? "TEXT" : ""), (cursect & DATA ? " DATA" : ""), (cursect & BSS ? "BSS" : ""), scattr); } - if((scattr & SBSS) != 0) - return(error("illegal initialization of section")); + if ((scattr & SBSS) != 0) + return error("illegal initialization of section"); - if(abs_expr(&evalc) != OK) - return(0); + if (abs_expr(&evalc) != OK) + return 0; - if(*tok++ != ',') - return(error("missing comma")); + if (*tok++ != ',') + return error("missing comma"); - if(expr(exprbuf, &eval, &eattr, NULL) < 0) - return(0); + if (expr(exprbuf, &eval, &eattr, NULL) < 0) + return 0; - if((siz != SIZB) && (sloc & 1)) - auto_even(); + if ((siz != SIZB) && (sloc & 1)) + auto_even(); - dep_block(evalc, siz, eval, eattr, exprbuf); - return(0); + dep_block(evalc, siz, eval, eattr, exprbuf); + return 0; } + // -// ------------------------------------------------------------------------------------------------- // Generalized initialization directive -// +// // .init[.siz] [#count,] expression [.size] , ... -// -// The size suffix on the ".init" directive becomes the default size of the objects to deposit. -// If an item is preceeded with a sharp (immediate) sign and an expression, it specifies a repeat -// count. The value to be deposited may be followed by a size suffix, which overrides the -// default size. -// ------------------------------------------------------------------------------------------------- -// - -int d_init(WORD def_siz) { - VALUE count; - VALUE eval; - WORD eattr; - WORD siz; - - if((scattr & SBSS) != 0) - return(error(".init not permitted in BSS or ABS")); - - if(rgpu || rdsp) - return(error("directive forbidden in gpu/dsp mode")); - - for(;;) { - // Get repeat count (defaults to 1) - if(*tok == '#') { - ++tok; - if(abs_expr(&count) != OK) - return(0); - if(*tok++ != ',') - return(error(comma_error)); - } else - count = 1; - - // Evaluate expression to deposit - if(expr(exprbuf, &eval, &eattr, NULL) < 0) - return(0); - - switch((int)*tok++) { // Determine size of object to deposit - case DOTB: siz = SIZB; break; - case DOTW: siz = SIZB; break; - case DOTL: siz = SIZL; break; - default: - siz = def_siz; - --tok; - break; - } - - dep_block(count, siz, eval, eattr, exprbuf); - - switch((int)*tok) { - case EOL: - return(0); - case ',': - ++tok; - continue; - default: - return(error(comma_error)); - } - } +// +// The size suffix on the ".init" directive becomes the default size of the +// objects to deposit. If an item is preceeded with a sharp (immediate) sign +// and an expression, it specifies a repeat count. The value to be deposited +// may be followed by a size suffix, which overrides the default size. +// +int d_init(WORD def_siz) +{ + VALUE count; + VALUE eval; + WORD eattr; + WORD siz; + + if ((scattr & SBSS) != 0) + return error(".init not permitted in BSS or ABS"); + + if (rgpu || rdsp) + return error("directive forbidden in gpu/dsp mode"); + + for(;;) + { + // Get repeat count (defaults to 1) + if (*tok == '#') + { + ++tok; + + if (abs_expr(&count) != OK) + return 0; + + if (*tok++ != ',') + return error(comma_error); + } + else + count = 1; + + // Evaluate expression to deposit + if (expr(exprbuf, &eval, &eattr, NULL) < 0) + return 0; + + switch ((int)*tok++) + { // Determine size of object to deposit + case DOTB: siz = SIZB; break; + case DOTW: siz = SIZB; break; + case DOTL: siz = SIZL; break; + default: + siz = def_siz; + tok--; + break; + } + + dep_block(count, siz, eval, eattr, exprbuf); + + switch ((int)*tok) + { + case EOL: + return 0; + case ',': + tok++; + continue; + default: + return error(comma_error); + } + } } + // -// --- Deposit 'count' values of size 'siz' in the current (non-BSS) segment ----------------------- -// - -int dep_block(VALUE count, WORD siz, VALUE eval, WORD eattr, TOKEN *exprbuf) { - WORD tdb; - WORD defined; - - tdb = (WORD)(eattr & TDB); - defined = (WORD)(eattr & DEFINED); - - while(count--) { - if((challoc - ch_size) < 4) - chcheck(4L); - - switch(siz) { - case SIZB: - if(!defined) { - fixup(FU_BYTE|FU_SEXT, sloc, exprbuf); - D_byte(0); - } else { - if(tdb) - return(error("non-absolute byte value")); - if(eval + 0x100 >= 0x200) - return(error(range_error)); - D_byte(eval); - } - break; - case SIZW: - case SIZN: - if(!defined) { - fixup(FU_WORD|FU_SEXT, sloc, exprbuf); - D_word(0); - } else { - if(tdb) - rmark(cursect, sloc, tdb, MWORD, NULL); - if(eval + 0x10000 >= 0x20000) - return(error(range_error)); - - // Deposit 68000 or 6502 (byte-reversed) word - D_word(eval); - } - break; - case SIZL: - if(!defined) { - fixup(FU_LONG, sloc, exprbuf); - D_long(0); - } else { - if(tdb) - rmark(cursect, sloc, tdb, MLONG, NULL); - D_long(eval); - } - break; - } - } - return(0); +// Deposit 'count' values of size 'siz' in the current (non-BSS) segment +// +int dep_block(VALUE count, WORD siz, VALUE eval, WORD eattr, TOKEN * exprbuf) +{ + WORD tdb; + WORD defined; + + tdb = (WORD)(eattr & TDB); + defined = (WORD)(eattr & DEFINED); + + while (count--) + { + if ((challoc - ch_size) < 4) + chcheck(4L); + + switch(siz) + { + case SIZB: + if (!defined) + { + AddFixup(FU_BYTE | FU_SEXT, sloc, exprbuf); + D_byte(0); + } + else + { + if (tdb) + return error("non-absolute byte value"); + + if (eval + 0x100 >= 0x200) + return error(range_error); + + D_byte(eval); + } + + break; + case SIZW: + case SIZN: + if (!defined) + { + AddFixup(FU_WORD | FU_SEXT, sloc, exprbuf); + D_word(0); + } + else + { + if (tdb) + MarkRelocatable(cursect, sloc, tdb, MWORD, NULL); + + if (eval + 0x10000 >= 0x20000) + return error(range_error); + + // Deposit 68000 or 6502 (byte-reversed) word + D_word(eval); + } + + break; + case SIZL: + if (!defined) + { + AddFixup(FU_LONG, sloc, exprbuf); + D_long(0); + } + else + { + if (tdb) + MarkRelocatable(cursect, sloc, tdb, MLONG, NULL); + + D_long(eval); + } + + break; + } + } + + return 0; } + // -// --- .comm symbol, size -------------------------------------------------------------------------- +// .comm symbol, size // +int d_comm(void) +{ + SYM * sym; + char * p; + VALUE eval; + + if (*tok != SYMBOL) + return error("missing symbol"); -int d_comm(void) { - SYM *sym; - char *p; - VALUE eval; + p = string[tok[1]]; + tok += 2; - if(*tok != SYMBOL) - return(error("missing symbol")); - p = (char *)tok[1]; - tok += 2; + if (*p == '.') // Cannot .comm a local symbol + return error(locgl_error); - if(*p == '.') // Cannot .comm a local symbol - return(error(locgl_error)); + if ((sym = lookup(p, LABEL, 0)) == NULL) + sym = NewSymbol(p, LABEL, 0); + else + { + if (sym->sattr & DEFINED) + return error(".comm symbol already defined"); + } - if((sym = lookup(p, LABEL, 0)) == NULL) - sym = newsym(p, LABEL, 0); - else { - if(sym->sattr & DEFINED) - return(error(".comm symbol already defined")); - } + sym->sattr = GLOBAL | COMMON | BSS; - sym->sattr = GLOBAL|COMMON|BSS; - if(*tok++ != ',') - return(error(comma_error)); + if (*tok++ != ',') + return error(comma_error); - if(abs_expr(&eval) != OK) // Parse size of common region - return(0); - sym->svalue = eval; // Install common symbol's size - at_eol(); - return(0); + if (abs_expr(&eval) != OK) // Parse size of common region + return 0; + + sym->svalue = eval; // Install common symbol's size + at_eol(); + return 0; } + // -// --- .list - Turn listing on -------------------------------------------------------------------- +// .list - Turn listing on // +int d_list(void) +{ + if (list_flag) + listing++; -int d_list(void) { - if(list_flag) - ++listing; - return(0); + return 0; } + // -// --- .nlist - Turn listing off ------------------------------------------------------------------- +// .nlist - Turn listing off // +int d_nlist(void) +{ + if (list_flag) + listing--; -int d_nlist(void) { - if(list_flag) - --listing; - return(0); + return 0; } + // -// --- .68000 - Back to 68000 TEXT segment --------------------------------------------------------- +// .68000 - Back to 68000 TEXT segment // - -int d_68000(void) { - rgpu = rdsp = 0; - in_main = 0; - // Switching from gpu/dsp sections should reset any ORG'd Address - orgactive = 0; - orgwarning = 0; - savsect(); - switchsect(TEXT); - return(0); +int d_68000(void) +{ + rgpu = rdsp = 0; + // Switching from gpu/dsp sections should reset any ORG'd Address + orgactive = 0; + orgwarning = 0; + SaveSection(); + SwitchSection(TEXT); + return 0; } + +// +// .gpu - Switch to GPU assembler // -// --- .gpu - Switch to GPU Assembler -------------------------------------------------------------- -// - -int d_gpu(void) { - if((cursect != TEXT) && (cursect != DATA)) { - error(".gpu can only be used in the TEXT or DATA segments"); - return(ERROR); - } - // If previous section was dsp or 68000 then we need to reset ORG'd Addresses - if(!rgpu) { - orgactive = 0; - orgwarning = 0; - } - rgpu = 1; // Set GPU assembly - rdsp = 0; // Unset DSP assembly - regbank = BANK_N; // Set no default register bank - in_main = 0; - jpad = 0; - return(0); +int d_gpu(void) +{ + if ((cursect != TEXT) && (cursect != DATA)) + { + error(".gpu can only be used in the TEXT or DATA segments"); + return ERROR; + } + + // If previous section was dsp or 68000 then we need to reset ORG'd Addresses + if (!rgpu) + { +//printf("Resetting ORG...\n"); + orgactive = 0; + orgwarning = 0; + } +//else printf("NOT resetting ORG!\n"); + + rgpu = 1; // Set GPU assembly + rdsp = 0; // Unset DSP assembly + regbank = BANK_N; // Set no default register bank + return 0; } + +// +// .dsp - Switch to DSP assembler // -// --- GPU Main Code Directive --------------------------------------------------------------------- -// - -int d_gpumain(void) { - if((cursect != TEXT) && (cursect != DATA)) { - error(".gpumain can only be used in the TEXT or DATA segments"); - return(ERROR); - } - // If previous section was dsp or 68000 then we need to reset ORG'd Addresses - if(!rgpu) { - orgactive = 0; - orgwarning = 0; - } - rgpu = 1; // Set GPU assembly - rdsp = 0; // Unset DSP assembly - regbank = BANK_N; // Set no default register bank - in_main = 1; // Enable main code execution rules - jpad = 0; - return(0); +int d_dsp(void) +{ + if ((cursect != TEXT) && (cursect != DATA)) + { + error(".dsp can only be used in the TEXT or DATA segments"); + return ERROR; + } + + // If previous section was gpu or 68000 then we need to reset ORG'd Addresses + if (!rdsp) + { + orgactive = 0; + orgwarning = 0; + } + + rdsp = 1; // Set DSP assembly + rgpu = 0; // Unset GPU assembly + regbank = BANK_N; // Set no default register bank + return 0; } + +// +// .cargs [#offset], symbol[.size], ... // -// --- .dsp - Switch to DSP Assembler -------------------------------------------------------------- -// - -int d_dsp(void) { - if((cursect != TEXT) && (cursect != DATA)) { - error(".dsp can only be used in the TEXT or DATA segments"); - return(ERROR); - } - // If previous section was gpu or 68000 then we need to reset ORG'd Addresses - if(!rdsp) { - orgactive = 0; - orgwarning = 0; - } - rdsp = 1; // Set DSP assembly - rgpu = 0; // Unset GPU assembly - regbank = BANK_N; // Set no default register bank - in_main = 0; - jpad = 0; - return(0); +// Lists of registers may also be mentioned; they just take up space. Good for +// "documentation" purposes: +// +// .cargs a6, .arg1, .arg2, .arg3... +// +// Symbols thus created are ABS and EQUATED. +// +int d_cargs(void) +{ + VALUE eval = 4; // Default to 4 if no offset specified (to account for + // return address) + WORD rlist; + SYM * symbol; + char * p; + int env; + int i; + + if (rgpu || rdsp) + return error("directive forbidden in gpu/dsp mode"); + + if (*tok == '#') + { + tok++; + + if (abs_expr(&eval) != OK) + return 0; + + // Eat the comma, if it's there + if (*tok == ',') + tok++; + } + + for(;;) + { + if (*tok == SYMBOL) + { + p = string[tok[1]]; + + // Set env to either local (dot prefixed) or global scope + env = (*p == '.' ? curenv : 0); + symbol = lookup(p, LABEL, env); + + if (symbol == NULL) + { + symbol = NewSymbol(p, LABEL, env); + symbol->sattr = 0; + } + else if (symbol->sattr & DEFINED) + return errors("multiply-defined label '%s'", p); + + // Put symbol in "order of definition" list + AddToSymbolDeclarationList(symbol); + + symbol->sattr |= (ABS | DEFINED | EQUATED); + symbol->svalue = eval; + tok += 2; + + // What this does is eat any dot suffixes attached to a symbol. If + // it's a .L, it adds 4 to eval; if it's .W or .B, it adds 2. If + // there is no dot suffix, it assumes a size of 2. + switch ((int)*tok) + { + case DOTL: + eval += 2; + case DOTB: + case DOTW: + tok++; + } + + eval += 2; + } + else if (*tok >= KW_D0 && *tok <= KW_A7) + { + if (reglist(&rlist) < 0) + return 0; + + for(i=0; i<16; i++, rlist>>=1) + { + if (rlist & 1) + eval += 4; + } + } + else + { + switch ((int)*tok) + { + case KW_USP: + case KW_SSP: + case KW_PC: + eval += 2; + // FALLTHROUGH + case KW_SR: + case KW_CCR: + eval += 2; + tok++; + break; + case EOL: + return 0; + default: + return error(".cargs syntax"); + } + } + + // Eat commas in between each argument, if they exist + if (*tok == ',') + tok++; + } } + // -// ------------------------------------------------------------------------------------------------- -// .cargs [#offset], symbol[.size], ... -// -// Lists of registers may also be mentioned; they just take up space. Good for "documentation" -// purposes. -// -// .cargs a6,.arg1, .arg2, .arg3... -// -// The symbols are ABS and EQUATED. -// ------------------------------------------------------------------------------------------------- -// - -int d_cargs(void) { - VALUE eval; - WORD rlist; - SYM *sy; - char *p; - int env; - int i; - - if(rgpu || rdsp) - return(error("directive forbidden in gpu/dsp mode")); - - if(*tok == '#') { - ++tok; - if(abs_expr(&eval) != OK) - return(0); - if(*tok == ',') // Eat comma if it's there - ++tok; - } else - eval = 4; - - for(;;) { - if(*tok == SYMBOL) { - p = (char *)tok[1]; - if(*p == '.') - env = curenv; - else - env = 0; - - sy = lookup(p, LABEL, env); - if(sy == NULL) { - sy = newsym(p, LABEL, env); - sy->sattr = 0; - } else - if(sy->sattr & DEFINED) - return(errors("multiply-defined label '%s'", p)); - - // Put symbol in "order of definition" list - if(!(sy->sattr & SDECLLIST)) sym_decl(sy); - - sy->sattr |= ABS|DEFINED|EQUATED; - sy->svalue = eval; - tok += 2; - - switch((int)*tok) { - case DOTL: - eval += 2; - case DOTB: - case DOTW: - ++tok; - } - eval += 2; - } else - if(*tok >= KW_D0 && *tok <= KW_A7) { - if(reglist(&rlist) < 0) - return(0); - for(i = 0; i++ < 16; rlist >>= 1) - if(rlist & 1) - eval += 4; - } else - switch((int)*tok) { - case KW_USP: - case KW_SSP: - case KW_PC: - eval += 2; - // FALLTHROUGH - case KW_SR: - case KW_CCR: - eval += 2; - ++tok; - break; - case EOL: - return(0); - default: - return(error(".cargs syntax")); - } - - if(*tok == ',') - ++tok; - } +// .cstruct [#offset], symbol[.size], ... +// +// Lists of registers may also be mentioned; they just take up space. Good for +// "documentation" purposes: +// +// .cstruct a6, .arg1, .arg2, .arg3... +// +// Symbols thus created are ABS and EQUATED. Note that this is for +// compatibility with VBCC and the Remover's library. Thanks to GroovyBee for +// the suggestion. +// +int d_cstruct(void) +{ + VALUE eval = 0; // Default, if no offset specified, is zero + WORD rlist; + SYM * symbol; + char * symbolName; + int env; + int i; + + if (rgpu || rdsp) + return error("directive forbidden in gpu/dsp mode"); + + if (*tok == '#') + { + tok++; + + if (abs_expr(&eval) != OK) + return 0; + + // Eat the comma, if it's there + if (*tok == ',') + tok++; + } + + for(;;) + { + if (*tok == SYMBOL) + { + symbolName = string[tok[1]]; + + // Set env to either local (dot prefixed) or global scope + env = (symbolName[0] == '.' ? curenv : 0); + symbol = lookup(symbolName, LABEL, env); + + // If the symbol wasn't found, then define it. Otherwise, throw an + // error. + if (symbol == NULL) + { + symbol = NewSymbol(symbolName, LABEL, env); + symbol->sattr = 0; + } + else if (symbol->sattr & DEFINED) + return errors("multiply-defined label '%s'", symbolName); + + // Put symbol in "order of definition" list + AddToSymbolDeclarationList(symbol); + + tok += 2; + + // Adjust label start address if it's a word or a long, as a byte + // label might have left us on an odd address. + switch ((int)*tok) + { + case DOTW: + case DOTL: + eval += eval & 0x01; + } + + symbol->sattr |= (ABS | DEFINED | EQUATED); + symbol->svalue = eval; + + // Check for dot suffixes and adjust space accordingly (longs and + // words on an odd boundary get bumped to the next word aligned + // address). If no suffix, then throw an error. + switch ((int)*tok) + { + case DOTL: + eval += 4; + break; + case DOTW: + eval += 2; + break; + case DOTB: + eval += 1; + break; + default: + return error("Symbol missing dot suffix in .cstruct construct"); + } + + tok++; + } + else if (*tok >= KW_D0 && *tok <= KW_A7) + { + if (reglist(&rlist) < 0) + return 0; + + for(i=0; i<16; i++, rlist>>=1) + { + if (rlist & 1) + eval += 4; + } + } + else + { + switch ((int)*tok) + { + case KW_USP: + case KW_SSP: + case KW_PC: + eval += 2; + // FALLTHROUGH + case KW_SR: + case KW_CCR: + eval += 2; + tok++; + break; + case EOL: + return 0; + default: + return error(".cstruct syntax"); + } + } + + // Eat commas in between each argument, if they exist + if (*tok == ',') + tok++; + } } + // -// --- Undefine a macro - .undefmac macname [, macname...] ----------------------------------------- +// Undefine a macro - .undefmac macname [, macname...] // +int undmac1(char * p) +{ + SYM * symbol = lookup(p, MACRO, 0); -int undmac1(char *p) { - SYM *sy; + // If the macro symbol exists, cause it to disappear + if (symbol != NULL) + symbol->stype = (BYTE)SY_UNDEF; - // If the macro symbol exists, cause it to dissappear - if((sy = lookup(p, MACRO, 0)) != NULL) sy->stype = (BYTE)SY_UNDEF; - return(OK); + return OK; } -int d_undmac(void) { - symlist(undmac1); - return(0); + +int d_undmac(void) +{ + symlist(undmac1); + return 0; } + + +int d_jpad(void) +{ + warn("JPAD directive is deprecated/non-functional"); + return OK; +} + + +int d_nojpad(void) +{ + warn("NOJPAD directive is deprecated/non-functional"); + return OK; +} + + +int d_gpumain(void) +{ + return error("What the hell? Do you think we adhere to the Goof standard?"); +} + + +// +// .opt - turn a specific (or all) optimisation on or off +// +int d_opt(void) +{ + while (*tok != EOL) + { + if (*tok == STRING) + { + tok++; + char * tmpstr = string[*tok++]; + + if (ParseOptimization(tmpstr) != OK) + { + char temperr[256]; + sprintf(temperr, "unknown optimization flag '%s'", tmpstr); + return error(temperr); + } + } + else + return error(".opt directive needs every switch enclosed inside quotation marks"); + } + + return OK; +} +