X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?p=rmac;a=blobdiff_plain;f=direct.c;h=155fa3fb360821bc945bb0e8e3a79ffd6fe973a9;hp=3471742ea179a28ca817d232b46501e5887ac41b;hb=eace4e1b294ccec54a5c476619f616f5da0bf8a9;hpb=49dca3f4aa9df6022a2902be0246b6e8d93def66 diff --git a/direct.c b/direct.c index 3471742..155fa3f 100644 --- a/direct.c +++ b/direct.c @@ -1,99 +1,225 @@ // -// RMAC - Reboot's Macro Assembler for the Atari Jaguar Console System +// RMAC - Reboot's Macro Assembler for all Atari computers // DIRECT.C - Directive Handling -// Copyright (C) 199x Landon Dyer, 2011 Reboot and Friends +// Copyright (C) 199x Landon Dyer, 2011-2017 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 "6502.h" +#include "amode.h" #include "error.h" -#include "token.h" -#include "procln.h" #include "expr.h" -#include "mach.h" #include "listing.h" +#include "mach.h" +#include "macro.h" #include "mark.h" +#include "procln.h" +#include "riscasm.h" +#include "sect.h" #include "symbol.h" +#include "token.h" +#include "math.h" +#include "sect.h" #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 +int largestAlign[3] = { 2, 2, 2 }; // Largest alignment value seen per section + +// Function prototypes +int d_unimpl(void); +int d_68000(void); +int d_68000(void); +int d_68020(void); +int d_68030(void); +int d_68040(void); +int d_68060(void); +int d_68881(void); +int d_68882(void); +int d_56001(void); +int d_nofpu(void); +int d_bss(void); +int d_data(void); +int d_text(void); +int d_abs(void); +int d_comm(void); +int d_dc(WORD); +int d_ds(WORD); +int d_dcb(WORD); +int d_globl(void); +int d_gpu(void); +int d_dsp(void); +int d_assert(void); +int d_include(void); +int d_list(void); +int d_nlist(void); +int d_error(char *); +int d_warn(char *); +int d_org(void); +int d_init(WORD); +int d_cargs(void); +int d_undmac(void); +int d_regbank0(void); +int d_regbank1(void); +int d_incbin(void); +int d_noclear(void); +int d_equrundef(void); +int d_ccundef(void); +int d_print(void); +int d_gpumain(void); +int d_jpad(void); +int d_nojpad(void); +int d_fail(void); +int d_cstruct(void); +int d_prgflags(void); +int d_opt(void); +int d_dsp(void); +void SetLargestAlignment(int); // 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 - 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_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_cstruct, // 53 .cstruct + d_org, // 0 org + d_even, // 1 even + d_6502, // 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_68020, // 58 .68020 + d_68030, // 59 .68030 + d_68040, // 60 .68040 + d_68060, // 61 .68060 + d_68881, // 62 .68881 + d_68882, // 63 .68882 + d_56001, // 64 .56001 + d_nofpu, // 65 nofpu + d_opt, // 58 .opt }; +// +// Set the largest alignment seen in the current section +// +void SetLargestAlignment(int size) +{ + if ((scattr & TEXT) && (largestAlign[0] < size)) + largestAlign[0] = size; + else if ((scattr & DATA) && (largestAlign[1] < size)) + largestAlign[1] = size; + else if ((scattr & BSS) && (largestAlign[2] < size)) + largestAlign[2] = size; +} + + +// +// .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 assembly"); + } + } +} + + +// +// .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"); + } + } +} + + // // .org - Set origin // int d_org(void) { - VALUE address; - - if (!rgpu && !rdsp) - return error(".org permitted only in gpu/dsp section"); + uint64_t address; - orgaddr = 0; + if (!rgpu && !rdsp && !m6502) + return error(".org permitted only in gpu/dsp and 6502 sections"); if (abs_expr(&address) == ERROR) { @@ -101,27 +227,51 @@ int d_org(void) return ERROR; } - orgaddr = address; - orgactive = 1; + if (rgpu | rdsp) + { + orgaddr = address; + orgactive = 1; + } + else + { + // 6502. We also kludge `lsloc' so the listing generator doesn't try + // to spew out megabytes. + if (address > 0xFFFF) + return error(range_error); + + if (sloc != currentorg[0]) + { + currentorg[1] = sloc; + currentorg += 2; + } + + currentorg[0] = address; + ch_size = 0; + lsloc = sloc = address; + chptr = scode->chptr + address; + orgaddr = address; + orgactive = 1; + at_eol(); + } return 0; } // -// Print Directive +// 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. + 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 + + uint64_t eval; // Expression value + WORD eattr; // Expression attributes + SYM * esym; // External symbol involved in expr. TOKEN r_expr[EXPRSIZE]; while (*tok != EOL) @@ -129,12 +279,11 @@ int d_print(void) switch(*tok) { case STRING: -// sprintf(prntstr, "%s", (char *)tok[1]); sprintf(prntstr, "%s", string[tok[1]]); printf("%s", prntstr); - if (list_fd) - write(list_fd, prntstr, (LONG)strlen(prntstr)); + if (list_fd) + unused = write(list_fd, prntstr, (LONG)strlen(prntstr)); tok += 2; break; @@ -171,9 +320,9 @@ int d_print(void) { switch(outtype) { - case 0: strcpy(format, "%X"); break; - case 1: strcpy(format, "%d" ); break; - case 2: strcpy(format, "%u" ); break; + case 0: strcpy(format, "%X"); break; + case 1: strcpy(format, "%d" ); break; + case 2: strcpy(format, "%u" ); break; } if (wordlong) @@ -183,8 +332,8 @@ int d_print(void) printf("%s", prntstr); - if (list_fd) - write(list_fd, prntstr, (LONG)strlen(prntstr)); + if (list_fd) + unused = write(list_fd, prntstr, (LONG)strlen(prntstr)); formatting = 0; wordlong = 0; @@ -196,7 +345,6 @@ int d_print(void) } printf("\n"); - println("\n"); return 0; @@ -207,7 +355,7 @@ token_err: // -// Undefine an Equated Condition Code +// Undefine an equated condition code // int d_ccundef(void) { @@ -222,11 +370,10 @@ int d_ccundef(void) if (*tok != SYMBOL) { - error(syntax_error); + error("syntax error; expected symbol"); return ERROR; } -// ccname = lookup((char *)tok[1], LABEL, 0); ccname = lookup(string[tok[1]], LABEL, 0); // Make sure symbol is a valid ccdef @@ -243,7 +390,7 @@ int d_ccundef(void) // -// Undefine an Equated Register +// Undefine an equated register // int d_equrundef(void) { @@ -251,30 +398,28 @@ int d_equrundef(void) // Check that we are in a RISC section if (!rgpu && !rdsp) - { - error(".equrundef/.regundef must be defined in .gpu/.dsp section"); - return ERROR; - } + return error(".equrundef/.regundef must be defined in .gpu/.dsp section"); while (*tok != EOL) { - // Skip preceeding or seperating commas + // Skip preceeding or seperating commas (if any) if (*tok == ',') tok++; // Check we are dealing with a symbol if (*tok != SYMBOL) - { - error(syntax_error); - return ERROR; - } + return error("syntax error; expected symbol"); // Lookup and undef if equated register -// regname = lookup((char *)tok[1], LABEL, 0); regname = lookup(string[tok[1]], LABEL, 0); 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; + } // Skip over symbol token and address tok += 2; @@ -285,70 +430,94 @@ int d_equrundef(void) // -// Do Not Allow the Use of the CLR.L Opcode +// Do not allow use of the CLR.L opcode // int d_noclear(void) { + warn("CLR.L opcode ignored..."); return 0; } -// -// Include Binary File +// +// Include binary file // int d_incbin(void) { - int i, j; + int fd; int bytes = 0; - long pos, size; - char buf; + long pos, size, bytesRead; + char buf1[256]; + int i; // 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]]); + error("cannot include binary file \"%s\" in BSS section", string[tok[1]]); return ERROR; } if (*tok != STRING) { - error(syntax_error); + error("syntax error; string missing"); return ERROR; } -// if ((j = open((char *)tok[1], _OPEN_INC)) >= 0) - if ((j = open(string[tok[1]], _OPEN_INC)) >= 0) + // 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) { - size = lseek(j, 0L, SEEK_END); - chcheck(size); - pos = lseek(j, 0L, SEEK_SET); - - DEBUG + for(i=0; nthpath("RMACPATH", i, buf1)!=0; i++) { - printf("INCBIN: File '%s' is %li bytes.\n", string[tok[1]], size); - } + fd = strlen(buf1); - for(i=0; i 0 && buf1[fd - 1] != SLASHCHAR) + strcat(buf1, SLASHSTRING); + + strcat(buf1, string[tok[1]]); + + if ((fd = open(buf1, _OPEN_INC)) >= 0) + goto allright; } + + return error("cannot open: \"%s\"", string[tok[1]]); } - else + +allright: + + size = lseek(fd, 0L, SEEK_END); + pos = lseek(fd, 0L, SEEK_SET); + chcheck(size); + + 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) { -// errors("cannot open include binary file (%s)", (char *)tok[1]); - errors("cannot open include binary file (%s)", string[tok[1]]); + error("was only able to read %li bytes from binary file (%s, %li bytes)", bytesRead, string[tok[1]], size); return ERROR; } - close(j); + memcpy(chptr, fileBuffer, size); + chptr += size; + sloc += size; + ch_size += size; + + if (orgactive) + orgaddr += size; + + free(fileBuffer); + close(fd); return 0; } -// -// Set RISC Register Banks +// +// Set RISC register banks // int d_regbank0(void) { @@ -367,54 +536,51 @@ int d_regbank1(void) // -// Adjust Location to an EVEN Value +// Helper function, to cut down on mistakes & typing // -int d_even(void) +static inline void SkipBytes(unsigned bytesToSkip) { - if (sloc & 1) + if (!bytesToSkip) + return; + + if ((scattr & SBSS) == 0) { - if ((scattr & SBSS) == 0) - { - chcheck(1); - D_byte(0); - } - else - { - ++sloc; - } + chcheck(bytesToSkip); + D_ZEROFILL(bytesToSkip); } + else + { + sloc += bytesToSkip; - return 0; + if (orgactive) + orgaddr += bytesToSkip; + } } // -// Adjust Location to an LONG Value +// Adjust location to an EVEN value // -int d_long(void) +int d_even(void) { - unsigned i; - unsigned val = 4; - - i = sloc & ~(val - 1); + if (m6502) + return error(in_6502mode); - if (i != sloc) - val = val - (sloc - i); - else - val = 0; + unsigned skip = (rgpu || rdsp ? orgaddr : sloc) & 0x01; - if (val) + if (skip) { if ((scattr & SBSS) == 0) { - chcheck(val); - - for(i=0; isvalue; + if (lab_sym != NULL) // Bump label if we have to + lab_sym->svalue++; + } } // -// Unimplemened Directive Error +// Unimplemened directive error // int d_unimpl(void) { @@ -554,10 +687,10 @@ int d_unimpl(void) } -// +// // Return absolute (not TDB) and defined expression or return an error // -int abs_expr(VALUE * a_eval) +int abs_expr(uint64_t * a_eval) { WORD eattr; @@ -579,18 +712,14 @@ int abs_expr(VALUE * a_eval) // int symlist(int(* func)()) { - char * em = "symbol list syntax"; + const char * em = "symbol list syntax"; for(;;) { if (*tok != SYMBOL) return error(em); -#if 0 - if ((*func)(tok[1]) != OK) -#else if ((*func)(string[tok[1]]) != OK) -#endif break; tok += 2; @@ -601,7 +730,7 @@ int symlist(int(* func)()) if (*tok != ',') return error(em); - ++tok; + tok++; } return 0; @@ -619,40 +748,33 @@ int d_include(void) char buf[128]; char buf1[128]; - if (*tok == STRING) // Leave strings ALONE -#if 0 - fn = (char *)*++tok; -#else + if (*tok == STRING) // Leave strings ALONE fn = string[*++tok]; -#endif - else if (*tok == SYMBOL) // Try to append ".s" to symbols + else if (*tok == SYMBOL) // Try to append ".s" to symbols { -#if 0 - strcpy(buf, (char *)*++tok); -#else strcpy(buf, string[*++tok]); -#endif fext(buf, ".s", 0); fn = &buf[0]; } - else // Punt if no STRING or SYMBOL + 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"); + 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. + // the "-i" 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 + // Append path char if necessary + if (j > 0 && buf1[j - 1] != SLASHCHAR) strcat(buf1, SLASHSTRING); strcat(buf1, fn); @@ -661,7 +783,7 @@ int d_include(void) goto allright; } - return errors("cannot open: \"%s\"", fn); + return error("cannot open: \"%s\"", fn); } allright: @@ -676,7 +798,7 @@ allright: int d_assert(void) { WORD eattr; - VALUE eval; + uint64_t eval; for(; expr(exprbuf, &eval, &eattr, NULL)==OK; ++tok) { @@ -700,7 +822,7 @@ int d_assert(void) // int globl1(char * p) { - SYM *sy; + SYM * sy; if (*p == '.') return error("cannot .globl local symbol"); @@ -710,8 +832,9 @@ int globl1(char * p) 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 + else sy->sattr |= GLOBAL; return OK; @@ -720,44 +843,72 @@ int globl1(char * p) int d_globl(void) { + if (m6502) + return error(in_6502mode); + symlist(globl1); return 0; } +// +// .prgflags expression +// +int d_prgflags(void) +{ + uint64_t eval; + + if (*tok == EOL) + return error("PRGFLAGS requires value"); + else if (abs_expr(&eval) == OK) + { + PRGFLAGS = (uint32_t)eval; + return 0; + } + else + { + return error("PRGFLAGS requires value"); + } +} + + // // .abs [expression] // int d_abs(void) { - VALUE eval; + uint64_t eval; + + if (m6502) + return error(in_6502mode); - savsect(); + SaveSection(); if (*tok == EOL) eval = 0; else if (abs_expr(&eval) != OK) return 0; - switchsect(ABS); - sloc = eval; + SwitchSection(ABS); + sloc = (uint32_t)eval; return 0; } // -// Switch Segments +// Switch segments // - int d_text(void) { if (rgpu || rdsp) return error("directive forbidden in gpu/dsp mode"); + else if (m6502) + return error(in_6502mode); if (cursect != TEXT) { - savsect(); - switchsect(TEXT); + SaveSection(); + SwitchSection(TEXT); } return 0; @@ -768,11 +919,13 @@ int d_data(void) { if (rgpu || rdsp) return error("directive forbidden in gpu/dsp mode"); + else if (m6502) + return error(in_6502mode); if (cursect != DATA) { - savsect(); - switchsect(DATA); + SaveSection(); + SwitchSection(DATA); } return 0; @@ -783,11 +936,13 @@ int d_bss(void) { if (rgpu || rdsp) return error("directive forbidden in gpu/dsp mode"); + else if (m6502) + return error(in_6502mode); if (cursect != BSS) { - savsect(); - switchsect(BSS); + SaveSection(); + SwitchSection(BSS); } return 0; @@ -799,34 +954,43 @@ int d_bss(void) // int d_ds(WORD siz) { - VALUE eval; + DEBUG { printf("Directive: .ds.[size] = %u, sloc = $%X\n", siz, sloc); } - // 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"); + uint64_t eval; - if (siz != SIZB && (sloc & 1)) // Automatic .even - auto_even(); + if (cursect != M6502) + { + if ((siz != SIZB) && (sloc & 1)) // Automatic .even + auto_even(); + } 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) + // N.B.: Since 'eval' is of type uint32_t, if it goes negative, it will have + // its high bit set. + if (eval & 0x80000000) + 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)) + // of zeroed memory.... + if ((scattr & SBSS) || cursect == M6502) { - listvalue(eval); + listvalue((uint32_t)eval); eval *= siz; - sloc += eval; - just_bss = 1; // No data deposited (8-bit CPU mode) + sloc += (uint32_t)eval; + + if (cursect == M6502) + chptr += eval; + + just_bss = 1; // No data deposited (8-bit CPU mode) } else { - dep_block(eval, siz, (VALUE)0, (WORD)(DEFINED|ABS), NULL); + dep_block(eval, siz, 0, (WORD)(DEFINED | ABS), NULL); } at_eol(); @@ -835,43 +999,60 @@ int d_ds(WORD siz) // -// dc.b, dc.w / dc, dc.l +// dc.b, dc.w / dc, dc.l, dc.i, dc.q, dc.d // 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 + uint64_t eval; + uint8_t * p; if ((scattr & SBSS) != 0) return error("illegal initialization of section"); - if ((siz != SIZB) && (sloc & 1)) + // Do an auto_even if it's not BYTE sized (hmm, should we be doing this???) + if (cursect != M6502 && (siz != SIZB) && (sloc & 1)) auto_even(); - for(;; ++tok) + // 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)) + if (siz == SIZB && (*tok == STRING || *tok == STRINGA8) && (tok[2] == ',' || tok[2] == EOL)) { -// i = strlen((const char*)tok[1]); - i = strlen(string[tok[1]]); + uint32_t i = strlen(string[tok[1]]); - if ((challoc - ch_size) < i) + if ((challoc - ch_size) < i) chcheck(i); - for(p=string[tok[1]]; *p!=EOS; ++p) - D_byte(*p); + if (*tok == STRING) + { + for(p=string[tok[1]]; *p!=EOS; p++) + D_byte(*p); + } + else if(*tok == STRINGA8) + { + for(p=string[tok[1]]; *p!=EOS; p++) + D_byte(strtoa8[*p]); + } + else + { + error("String format not supported... yet"); + } tok += 2; goto comma; } - if (*tok == 'I') + int movei = 0; // MOVEI flag for dc.i + + if (*tok == DOTI) { movei = 1; tok++; @@ -879,11 +1060,13 @@ int d_dc(WORD siz) } // dc.x - if (expr(exprbuf, &eval, &eattr, NULL) != OK) + SYM * esym = 0; + + if (expr(exprbuf, &eval, &eattr, &esym) != OK) return 0; - tdb = (WORD)(eattr & TDB); - defined = (WORD)(eattr & DEFINED); + uint16_t tdb = eattr & TDB; + uint16_t defined = eattr & DEFINED; if ((challoc - ch_size) < 4) chcheck(4); @@ -893,7 +1076,7 @@ int d_dc(WORD siz) case SIZB: if (!defined) { - fixup(FU_BYTE | FU_SEXT, sloc, exprbuf); + AddFixup(FU_BYTE | FU_SEXT, sloc, exprbuf); D_byte(0); } else @@ -902,7 +1085,7 @@ int d_dc(WORD siz) return error("non-absolute byte value"); if (eval + 0x100 >= 0x200) - return error(range_error); + return error("%s (value = $%X)", range_error, eval); D_byte(eval); } @@ -912,45 +1095,123 @@ int d_dc(WORD siz) case SIZN: if (!defined) { - fixup(FU_WORD | FU_SEXT, sloc, exprbuf); + AddFixup(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); + if (tdb) + MarkRelocatable(cursect, sloc, tdb, MWORD, NULL); + + // Deposit 68000 or 6502 (byte-reversed) word + if (cursect != M6502) + D_word(eval) + else + D_rword(eval) } break; case SIZL: + // Shamus: Why can't we do longs in 6502 mode? + if (m6502) + return error(in_6502mode); + if (!defined) { if (movei) - fixup(FU_LONG | FU_MOVEI, sloc, exprbuf); + AddFixup(FU_LONG | FU_MOVEI, sloc, exprbuf); else - fixup(FU_LONG, sloc, exprbuf); + AddFixup(FU_LONG, sloc, exprbuf); D_long(0); } else { if (tdb) - rmark(cursect, sloc, tdb, MLONG, NULL); + MarkRelocatable(cursect, sloc, tdb, MLONG, NULL); - if (movei) - eval = ((eval >> 16) & 0x0000FFFF) | ((eval << 16) & 0xFFFF0000); + if (movei) + eval = WORDSWAP32(eval); D_long(eval); } + break; + case SIZQ: + // 64-bit size + if (m6502) + return error(in_6502mode); + + // Shamus: We only handle DC.Q type stuff, will have to add fixups + // and stuff later (maybe... might not be needed...) + D_quad(eval); + break; + case SIZS: + if (m6502) + return error(in_6502mode); + + if (!defined) + { + float vv = 0; + AddFixup(FU_FLOATSING, sloc, exprbuf); + + D_single(vv); + } + else + { + if (tdb) + MarkRelocatable(cursect, sloc, tdb, MSINGLE, NULL); + + D_single(eval); + } + + break; + case SIZD: + if (m6502) + return error(in_6502mode); + + if (!defined) + { + double vv = 0; + AddFixup(FU_FLOATDOUB, sloc, exprbuf); + + D_double(vv); + } + else + { + if (tdb) + MarkRelocatable(cursect, sloc, tdb, MDOUBLE, NULL); + + double vv = *(double *)&eval; + D_double(vv); + } + + break; + case SIZX: + if (m6502) + return error(in_6502mode); + + if (!defined) + { + double vv = 0; + AddFixup(FU_FLOATEXT, sloc, exprbuf); + + D_extend(vv); + } + else + { + if (tdb) + MarkRelocatable(cursect, sloc, tdb, MEXTEND, NULL); + + float vv = *(double *)&eval; + D_extend(vv); + } + break; } - + comma: if (*tok != ',') break; @@ -966,9 +1227,11 @@ comma: // int d_dcb(WORD siz) { - VALUE evalc, eval; + uint64_t 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"); @@ -981,19 +1244,19 @@ int d_dcb(WORD siz) if (expr(exprbuf, &eval, &eattr, NULL) < 0) return 0; - if ((siz != SIZB) && (sloc & 1)) + if (cursect != M6502 && (siz != SIZB) && (sloc & 1)) auto_even(); - dep_block(evalc, siz, eval, eattr, exprbuf); + dep_block((uint32_t)evalc, siz, (uint32_t)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 @@ -1001,8 +1264,8 @@ int d_dcb(WORD siz) // int d_init(WORD def_siz) { - VALUE count; - VALUE eval; + uint64_t count; + uint64_t eval; WORD eattr; WORD siz; @@ -1017,7 +1280,7 @@ int d_init(WORD def_siz) // Get repeat count (defaults to 1) if (*tok == '#') { - ++tok; + tok++; if (abs_expr(&count) != OK) return 0; @@ -1032,25 +1295,25 @@ int d_init(WORD def_siz) if (expr(exprbuf, &eval, &eattr, NULL) < 0) return 0; - switch ((int)*tok++) + switch (*tok++) { // Determine size of object to deposit case DOTB: siz = SIZB; break; case DOTW: siz = SIZB; break; case DOTL: siz = SIZL; break; - default: + default: siz = def_siz; - --tok; + tok--; break; } - dep_block(count, siz, eval, eattr, exprbuf); + dep_block((uint32_t)count, siz, (uint32_t)eval, eattr, exprbuf); - switch ((int)*tok) + switch (*tok) { case EOL: return 0; case ',': - ++tok; + tok++; continue; default: return error(comma_error); @@ -1062,7 +1325,7 @@ int d_init(WORD def_siz) // // 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) +int dep_block(uint32_t count, WORD siz, uint32_t eval, WORD eattr, TOKEN * exprbuf) { WORD tdb; WORD defined; @@ -1080,7 +1343,7 @@ int dep_block(VALUE count, WORD siz, VALUE eval, WORD eattr, TOKEN * exprbuf) case SIZB: if (!defined) { - fixup(FU_BYTE | FU_SEXT, sloc, exprbuf); + AddFixup(FU_BYTE | FU_SEXT, sloc, exprbuf); D_byte(0); } else @@ -1099,32 +1362,39 @@ int dep_block(VALUE count, WORD siz, VALUE eval, WORD eattr, TOKEN * exprbuf) case SIZN: if (!defined) { - fixup(FU_WORD | FU_SEXT, sloc, exprbuf); + AddFixup(FU_WORD | FU_SEXT, sloc, exprbuf); D_word(0); } else { if (tdb) - rmark(cursect, sloc, tdb, MWORD, NULL); + MarkRelocatable(cursect, sloc, tdb, MWORD, NULL); if (eval + 0x10000 >= 0x20000) return error(range_error); // Deposit 68000 or 6502 (byte-reversed) word - D_word(eval); + if (cursect != M6502) + D_word(eval) + else + D_rword(eval) + } break; case SIZL: + if (m6502) + return error(in_6502mode); + if (!defined) { - fixup(FU_LONG, sloc, exprbuf); + AddFixup(FU_LONG, sloc, exprbuf); D_long(0); } else { if (tdb) - rmark(cursect, sloc, tdb, MLONG, NULL); + MarkRelocatable(cursect, sloc, tdb, MLONG, NULL); D_long(eval); } @@ -1144,12 +1414,14 @@ int d_comm(void) { SYM * sym; char * p; - VALUE eval; + uint64_t eval; + + if (m6502) + return error(in_6502mode); if (*tok != SYMBOL) return error("missing symbol"); -// p = (char *)tok[1]; p = string[tok[1]]; tok += 2; @@ -1172,7 +1444,7 @@ int d_comm(void) if (abs_expr(&eval) != OK) // Parse size of common region return 0; - sym->svalue = eval; // Install common symbol's size + sym->svalue = (uint32_t)eval; // Install common symbol's size at_eol(); return 0; } @@ -1209,16 +1481,104 @@ int d_68000(void) { rgpu = rdsp = 0; // Switching from gpu/dsp sections should reset any ORG'd Address - orgactive = 0; + orgactive = 0; orgwarning = 0; - savsect(); - switchsect(TEXT); + SaveSection(); + SwitchSection(TEXT); + activecpu = CPU_68000; + return 0; +} + + +// +// .68020 - Back to 68000 TEXT segment and select 68020 +// +int d_68020(void) +{ + d_68000(); + activecpu = CPU_68020; return 0; } // -// .gpu - Switch to GPU Assembler +// .68030 - Back to 68000 TEXT segment and select 68030 +// +int d_68030(void) +{ + d_68000(); + activecpu = CPU_68030; + return 0; +} + + +// +// .68040 - Back to 68000 TEXT segment and select 68040 +// +int d_68040(void) +{ + d_68000(); + activecpu = CPU_68040; + activefpu = FPU_68040; + return 0; +} + + +// +// .68060 - Back to 68000 TEXT segment and select 68060 +// +int d_68060(void) +{ + d_68000(); + activecpu = CPU_68060; + activefpu = FPU_68040; + return 0; +} + + +// +// .68881 - Back to 68000 TEXT segment and select 68881 FPU +// +int d_68881(void) +{ + d_68000(); + activefpu = FPU_68881; + return 0; +} + + +// +// .68882 - Back to 68000 TEXT segment and select 68882 FPU +// +int d_68882(void) +{ + d_68000(); + activefpu = FPU_68881; + return 0; +} + + +// +// nofpu - Deselect FPUs. +// +int d_nofpu(void) +{ + activefpu = FPU_NONE; + return 0; +} + + +// +// DSP56001 +// +int d_56001(void) +{ + return error("Not yet, child. Be patient."); +} + + +// +// .gpu - Switch to GPU assembler // int d_gpu(void) { @@ -1228,7 +1588,7 @@ int d_gpu(void) return ERROR; } - // If previous section was dsp or 68000 then we need to reset ORG'd Addresses + // If previous section was DSP or 68000 then we need to reset ORG'd Addresses if (!rgpu) { orgactive = 0; @@ -1243,7 +1603,7 @@ int d_gpu(void) // -// .dsp - Switch to DSP Assembler +// .dsp - Switch to DSP assembler // int d_dsp(void) { @@ -1269,17 +1629,17 @@ int d_dsp(void) // // .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... -// +// // Symbols thus created are ABS and EQUATED. // int d_cargs(void) { - VALUE eval = 4; // Default to 4 if no offset specified (to account for + uint64_t eval = 4; // Default to 4 if no offset specified (to account for // return address) WORD rlist; SYM * symbol; @@ -1306,18 +1666,10 @@ int d_cargs(void) { if (*tok == SYMBOL) { -// p = (char *)tok[1]; p = string[tok[1]]; -#if 0 - if (*p == '.') - env = curenv; // Label is local - else - env = 0; // Label is global -#else // Set env to either local (dot prefixed) or global scope env = (*p == '.' ? curenv : 0); -#endif symbol = lookup(p, LABEL, env); if (symbol == NULL) @@ -1326,14 +1678,13 @@ int d_cargs(void) symbol->sattr = 0; } else if (symbol->sattr & DEFINED) - return errors("multiply-defined label '%s'", p); + return error("multiply-defined label '%s'", p); // Put symbol in "order of definition" list - if (!(symbol->sattr & SDECLLIST)) - sym_decl(symbol); + AddToSymbolDeclarationList(symbol); symbol->sattr |= (ABS | DEFINED | EQUATED); - symbol->svalue = eval; + symbol->svalue = (uint32_t)eval; tok += 2; // What this does is eat any dot suffixes attached to a symbol. If @@ -1355,7 +1706,6 @@ int d_cargs(void) if (reglist(&rlist) < 0) return 0; -// for(i=0; i++<16; rlist>>=1) for(i=0; i<16; i++, rlist>>=1) { if (rlist & 1) @@ -1392,19 +1742,19 @@ int d_cargs(void) // // .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 + uint64_t eval = 0; // Default, if no offset specified, is zero WORD rlist; SYM * symbol; char * symbolName; @@ -1444,11 +1794,10 @@ int d_cstruct(void) symbol->sattr = 0; } else if (symbol->sattr & DEFINED) - return errors("multiply-defined label '%s'", symbolName); + return error("multiply-defined label '%s'", symbolName); // Put symbol in "order of definition" list - if (!(symbol->sattr & SDECLLIST)) - sym_decl(symbol); + AddToSymbolDeclarationList(symbol); tok += 2; @@ -1462,7 +1811,7 @@ int d_cstruct(void) } symbol->sattr |= (ABS | DEFINED | EQUATED); - symbol->svalue = eval; + symbol->svalue = (uint32_t)eval; // Check for dot suffixes and adjust space accordingly (longs and // words on an odd boundary get bumped to the next word aligned @@ -1531,7 +1880,6 @@ int undmac1(char * p) SYM * symbol = lookup(p, MACRO, 0); // If the macro symbol exists, cause it to disappear -// if ((sy = lookup(p, MACRO, 0)) != NULL) if (symbol != NULL) symbol->stype = (BYTE)SY_UNDEF; @@ -1545,3 +1893,121 @@ int d_undmac(void) 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) + return error("unknown optimization flag '%s'", tmpstr); + } + else + return error(".opt directive needs every switch enclosed inside quotation marks"); + } + + return OK; +} + + +// +// .if, Start conditional assembly +// +int d_if(void) +{ + WORD eattr; + uint64_t eval; + SYM * esym; + IFENT * rif = f_ifent; + + // Alloc an IFENTRY + if (rif == NULL) + rif = (IFENT *)malloc(sizeof(IFENT)); + else + f_ifent = rif->if_prev; + + rif->if_prev = ifent; + ifent = rif; + + if (!disabled) + { + if (expr(exprbuf, &eval, &eattr, &esym) != OK) + return 0; + + if ((eattr & DEFINED) == 0) + return error(undef_error); + + disabled = !eval; + } + + rif->if_state = (WORD)disabled; + return 0; +} + + +// +// .else, Do alternate case for .if +// +int d_else(void) +{ + IFENT * rif = ifent; + + if (rif->if_prev == NULL) + return error("mismatched .else"); + + if (disabled) + disabled = rif->if_prev->if_state; + else + disabled = 1; + + rif->if_state = (WORD)disabled; + return 0; +} + + +// +// .endif, End of conditional assembly block +// This is also called by fpop() to pop levels of IFENTs in case a macro or +// include file exits early with `exitm' or `end'. +// +int d_endif(void) +{ + IFENT * rif = ifent; + + if (rif->if_prev == NULL) + return error("mismatched .endif"); + + ifent = rif->if_prev; + disabled = rif->if_prev->if_state; + rif->if_prev = f_ifent; + f_ifent = rif; + return 0; +} +