diff options
Diffstat (limited to 'gas/config/tc-m68k.c')
| -rw-r--r-- | gas/config/tc-m68k.c | 86 |
1 files changed, 59 insertions, 27 deletions
diff --git a/gas/config/tc-m68k.c b/gas/config/tc-m68k.c index 0cfc1a0..8ad6fa7 100644 --- a/gas/config/tc-m68k.c +++ b/gas/config/tc-m68k.c @@ -381,7 +381,7 @@ struct m68k_incant { unsigned long m_opcode; short m_opnum; short m_codenum; - enum m68k_architecture m_arch; + int m_arch; struct m68k_incant *m_next; }; @@ -426,7 +426,7 @@ static void s_proc(); #endif /* not __STDC__ */ -static enum m68k_architecture current_architecture = 0; +static int current_architecture = 0; /* BCC68000 is for patching in an extra jmp instruction for long offsets on the 68000. The 68000 doesn't support long branches with branchs */ @@ -1470,6 +1470,14 @@ void m68k_ip (instring) losing++; break; + case '`': + switch (opP->mode) { + case MSCR: case IMMED: case DREG: case AREG: + case AINC: case REGLST: case AINDR: + losing++; + } + break; + case '#': if(opP->mode!=IMMED) losing++; @@ -1831,7 +1839,7 @@ void m68k_ip (instring) { int got_one = 0, idx; const static struct { - enum m68k_architecture arch; + int arch; const char *name; } archs[] = { m68000, "68000", @@ -1839,6 +1847,7 @@ void m68k_ip (instring) m68020, "68020", m68030, "68030", m68040, "68040", + cpu32, "cpu32", m68881, "68881", m68851, "68851", }; @@ -1894,6 +1903,7 @@ void m68k_ip (instring) case '$': case '?': case '/': + case '`': #ifndef NO_68851 case '|': #endif @@ -3082,6 +3092,7 @@ init_regtable() insert_reg(init_table[i].name, init_table[i].number); } +static int no_68851, no_68881; void md_assemble(str) @@ -3101,7 +3112,7 @@ md_assemble(str) if (cpu_of_arch (current_architecture) == 0) { - enum m68k_architecture cpu_type; + int cpu_type; #ifndef TARGET_CPU cpu_type = m68020; @@ -3117,33 +3128,42 @@ md_assemble(str) cpu_type = m68030; else if (strcmp (TARGET_CPU, "m68040") == 0) cpu_type = m68040; + else if (strcmp (TARGET_CPU, "cpu32") == 0) + cpu_type = cpu32; else cpu_type = m68020; #endif - /* If float or mmu were specified, just default cpu. */ - if (current_architecture != 0) - current_architecture |= cpu_type; - else - { - if ((cpu_type & m68020up) != 0) - current_architecture = (cpu_type -#ifndef NO_68881 - | m68881 -#endif -#ifndef NO_68851 - | m68851 -#endif - ); - else - current_architecture = cpu_type; - } + current_architecture |= cpu_type; } - if (cpu_of_arch (current_architecture) == m68000 - && (current_architecture & m68881) != 0) + if (current_architecture & m68881) + { + if (current_architecture & m68000) + as_bad ("incompatible processors 68000 and 68881/2 specified"); + if (current_architecture & m68010) + as_bad ("incompatible processors 68010 and 68881/2 specified"); + if (current_architecture & m68040) + as_bad ("incompatible processors 68040 and 68881/2 specified"); + } + /* What other incompatibilities ought we to check for? */ + + /* Toss in some default assumptions about coprocessors. */ + if (!no_68881 + && (cpu_of_arch (current_architecture) + /* Can CPU32 have a 68881 coprocessor?? */ + & (m68020 | m68030 | cpu32))) { - as_bad ("incompatible processors 68000 and 68881 specified"); + current_architecture |= m68881; } + if (!no_68851 + && (cpu_of_arch (current_architecture) & m68020up) != 0) + { + current_architecture |= m68851; + } + if (no_68881 && (current_architecture & m68881)) + as_bad ("options for 68881 and no-68881 both given"); + if (no_68851 && (current_architecture & m68851)) + as_bad ("options for 68851 and no-68851 both given"); done_first_time = 1; } @@ -4229,6 +4249,10 @@ static void s_proc() { * errors. More than one may be specified. The default is * -m68020 -m68851 -m68881. Note that -m68008 is a synonym * for -m68000, and -m68882 is a synonym for -m68881. + * -[A]m[c]no-68851, -[A]m[c]no-68881 + * Don't accept 688?1 instructions. (The "c" is kind of silly, + * so don't use or document it, but that's the way the parsing + * works). * * MAYBE_FLOAT_TOO is defined below so that specifying a processor type * (e.g. m68020) also requests that float instructions be included. This @@ -4238,7 +4262,7 @@ static void s_proc() { * of that funny floaty stuff going on. FIXME-later. */ #ifndef MAYBE_FLOAT_TOO -#define MAYBE_FLOAT_TOO m68881 +#define MAYBE_FLOAT_TOO /* m68881 */ 0 /* this is handled later */ #endif int md_parse_option(argP,cntP,vecP) @@ -4288,13 +4312,21 @@ char ***vecP; } else if (!strcmp(*argP, "68882")) { current_architecture |= m68882; - #endif /* NO_68881 */ + /* Even if we aren't configured to support the processor, + it should still be possible to assert that the user + doesn't have it... */ + } else if (!strcmp (*argP, "no-68881") + || !strcmp (*argP, "no-68882")) { + no_68881 = 1; #ifndef NO_68851 } else if (!strcmp(*argP,"68851")) { current_architecture |= m68851; - #endif /* NO_68851 */ + } else if (!strcmp (*argP, "no-68851")) { + no_68851 = 1; + } else if (!strcmp (*argP, "pu32")) { /* "-mcpu32" */ + current_architecture |= cpu32; } else { as_warn("Unknown architecture, \"%s\". option ignored", *argP); } /* switch on architecture */ |