//
-// 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, 2017 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
//
#include "direct.h"
-#include "sect.h"
-#include "riscasm.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"
#define DEF_KW
#include "kwtab.h"
static long unused; // For supressing 'write' warnings
char buffer[256]; // Scratch buffer for messages
+// 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);
// Directive handler table
int (*dirtab[])() = {
d_org, // 0 org
d_even, // 1 even
- d_6502, // 2 .6502
+ d_6502, // 2 .6502
d_68000, // 3 .68000
d_bss, // 4 bss
d_data, // 5 data
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
};
return error(string[tok[1]]);
break;
default:
- return error("error directive encountered - aborting assembling");
+ return error("error directive encountered--aborting assembly");
}
}
}
//
int d_org(void)
{
- VALUE address;
-
- if (!rgpu && !rdsp && !m6502)
- return error(".org permitted only in gpu/dsp and 6502 sections");
-
- if (rgpu | rdsp)
- {
- orgaddr = 0;
-
- if (abs_expr(&address) == ERROR)
- {
- error("cannot determine org'd address");
- return ERROR;
- }
-
- orgaddr = address;
- orgactive = 1;
- //printf("ORG: address = $%08X...\n", orgaddr);
-
- return 0;
- }
- else
- {
- // 6502
- // We also kludge `lsloc' so the listing generator doesn't
- // try to spew out megabytes.
- VALUE eval;
-
- //if (m6502 == 0) return error(".org permitted only in .6502 section");
- if (abs_expr(&eval) < 0) return 0;
- if (eval >= 0x10000L) return error(range_error);
-
- if (sloc != currentorg[0])
- {
- currentorg[1] = sloc;
- currentorg += 2;
- }
-
- currentorg[0] = eval;
- ch_size = 0;
- lsloc = sloc = eval;
- chptr = scode->chptr + eval;
- orgactive = 1;
- orgaddr = eval;
- at_eol();
- return 0;
- }
+ VALUE address;
+
+ if (!rgpu && !rdsp && !m6502)
+ return error(".org permitted only in gpu/dsp and 6502 sections");
+
+ if (abs_expr(&address) == ERROR)
+ {
+ error("cannot determine org'd address");
+ return ERROR;
+ }
+
+ 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;
}
int fd;
int bytes = 0;
long pos, size, bytesRead;
- char msg[256];
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;
}
goto allright;
}
- return errors("cannot open: \"%s\"", string[tok[1]]);
+ return error("cannot open: \"%s\"", string[tok[1]]);
}
allright:
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);
+ error("was only able to read %li bytes from binary file (%s, %li bytes)", bytesRead, string[tok[1]], size);
return ERROR;
}
//
int d_even(void)
{
- if (m6502)
- return error(in_6502mode);
+ if (m6502)
+ return error(in_6502mode);
unsigned skip = (rgpu || rdsp ? orgaddr : sloc) & 0x01;
//
void auto_even(void)
{
- if (cursect != M6502)
- {
- if (scattr & SBSS)
- sloc++; // Bump BSS section
- else
- D_byte(0); // Deposit 0.b in non-BSS
+ if (cursect != M6502)
+ {
+ 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++;
+ }
}
// 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
goto allright;
}
- return errors("cannot open: \"%s\"", fn);
+ return error("cannot open: \"%s\"", fn);
}
allright:
int d_globl(void)
{
- if (m6502)
- return error(in_6502mode);
+ if (m6502)
+ return error(in_6502mode);
symlist(globl1);
return 0;
{
VALUE eval;
- if (m6502)
- return error(in_6502mode);
-
+ if (m6502)
+ return error(in_6502mode);
+
SaveSection();
if (*tok == EOL)
{
if (rgpu || rdsp)
return error("directive forbidden in gpu/dsp mode");
- if (m6502)
- return error(in_6502mode);
+ else if (m6502)
+ return error(in_6502mode);
if (cursect != TEXT)
{
{
if (rgpu || rdsp)
return error("directive forbidden in gpu/dsp mode");
- if (m6502)
- return error(in_6502mode);
+ else if (m6502)
+ return error(in_6502mode);
if (cursect != DATA)
{
{
if (rgpu || rdsp)
return error("directive forbidden in gpu/dsp mode");
- if (m6502)
- return error(in_6502mode);
+ else if (m6502)
+ return error(in_6502mode);
if (cursect != BSS)
{
VALUE eval;
- if (cursect != M6502)
- {
- 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)
- if (eval < 0)
+ // N.B.: Since VALUE 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
listvalue(eval);
eval *= siz;
sloc += eval;
- if (cursect == M6502) chptr += eval;
+
+ if (cursect == M6502)
+ chptr += eval;
+
just_bss = 1; // No data deposited (8-bit CPU mode)
}
else
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))
{
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);
+ 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;
}
else
{
- if (eval + 0x100 >= 0x200)
- {
- sprintf(buffer, "%s (value = $%X)", range_error, eval);
- return error(buffer);
- }
-
if (tdb)
return error("non-absolute byte value");
+ if (eval + 0x100 >= 0x200)
+ return error("%s (value = $%X)", range_error, eval);
+
D_byte(eval);
}
MarkRelocatable(cursect, sloc, tdb, MWORD, NULL);
// Deposit 68000 or 6502 (byte-reversed) word
- if (cursect != M6502)
- {
- D_word(eval);
- }
- else
- {
- D_rword(eval);
- }
-
+ if (cursect != M6502)
+ D_word(eval)
+ else
+ D_rword(eval)
}
break;
case SIZL:
- if (m6502)
- return error(in_6502mode);
+ if (m6502)
+ return error(in_6502mode);
if (!defined)
{
// Deposit 68000 or 6502 (byte-reversed) word
if (cursect != M6502)
- {
- D_word(eval);
- }
+ D_word(eval)
else
- {
- D_rword(eval);
- }
+ D_rword(eval)
}
case SIZL:
if (m6502)
return error(in_6502mode);
-
+
if (!defined)
{
AddFixup(FU_LONG, sloc, exprbuf);
orgwarning = 0;
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;
+}
+
+
+//
+// .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
//
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
AddToSymbolDeclarationList(symbol);
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
AddToSymbolDeclarationList(symbol);
char * tmpstr = string[*tok++];
if (ParseOptimization(tmpstr) != OK)
- {
- char temperr[256];
- sprintf(temperr, "unknown optimization flag '%s'", tmpstr);
- return error(temperr);
- }
+ 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;
+ VALUE 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;
+}
+
projects / rmac / blobdiff