//
// RMAC - Reboot's Macro Assembler for all Atari computers
// DIRECT.C - Directive Handling
-// Copyright (C) 199x Landon Dyer, 2011-2019 Reboot and Friends
+// Copyright (C) 199x Landon Dyer, 2011-2020 Reboot and Friends
// RMAC derived from MADMAC v1.07 Written by Landon Dyer, 1986
// Source utilised with the kind permission of Landon Dyer
//
int d_comm(void);
int d_dc(WORD);
int d_ds(WORD);
+int d_dsm(WORD);
int d_dcb(WORD);
int d_globl(void);
int d_gpu(void);
d_nofpu, // 65 nofpu
d_opt, // 66 .opt
d_objproc, // 67 .objproc
+ (void *)d_dsm, // 68 .dsm
};
{
uint64_t address;
- if (!rgpu && !rdsp && !robjproc && !m6502 && !dsp56001)
- return error(".org permitted only in GPU/DSP/OP, 56001 and 6502 sections");
+ if (!rgpu && !rdsp && !robjproc && !m6502 && !dsp56001 && !(obj_format == RAW))
+ return error(".org permitted only in GPU/DSP/OP, 56001, 6502 and 68k (with -fr switch) sections");
// M56K can leave the expression off the org for some reason :-/
// (It's because the expression is non-standard, and so we have to look at
// N.B.: It seems that by enabling this, even though it works elsewhere, will cause symbols to royally fuck up. Will have to do some digging to figure out why.
// orgactive = 1;
}
+ else
+ {
+ // If we get here we assume it's 68k with RAW output, so this is allowed
+ if (orgactive)
+ {
+ return error("In 68k mode only one .org statement is allowed");
+ }
+
+ org68k_address = address;
+ org68k_active = 1;
+ }
ErrorIfNotAtEOL();
return 0;
//
-// Include binary file
+// Include binary file (can add addition size & position params, comma separated)
//
int d_incbin(void)
{
int fd;
int bytes = 0;
- long pos, size, bytesRead;
+ uint64_t pos, size, bytesRead;
char buf1[256];
int i;
// 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)
+ TOKEN filename = tok[1];
+
+ if ((fd = open(string[filename], _OPEN_INC)) < 0)
{
for(i=0; nthpath("RMACPATH", i, buf1)!=0; i++)
{
if (fd > 0 && buf1[fd - 1] != SLASHCHAR)
strcat(buf1, SLASHSTRING);
- strcat(buf1, string[tok[1]]);
+ strcat(buf1, string[filename]);
if ((fd = open(buf1, _OPEN_INC)) >= 0)
goto allright;
}
- return error("cannot open: \"%s\"", string[tok[1]]);
+ return error("cannot open: \"%s\"", string[filename]);
}
allright:
- size = lseek(fd, 0L, SEEK_END);
- pos = lseek(fd, 0L, SEEK_SET);
+ tok += 2;
+
+ if (*tok != EOL)
+ {
+ // Check size parameter (can be omitted)
+ if (*tok++ == ',')
+ {
+ if (*tok != ',')
+ {
+ if (abs_expr(&size) != OK)
+ {
+ close(fd);
+ return ERROR;
+ }
+ }
+ else
+ size = lseek(fd, 0L, SEEK_END);
+ }
+
+ // Check offset parameter (can be omitted)
+ if (*tok != EOL)
+ {
+ if (*tok++ == ',')
+ {
+ if (*tok != EOL)
+ {
+ if (abs_expr(&pos) != OK)
+ {
+ close(fd);
+ return ERROR;
+ }
+
+ lseek(fd, pos, SEEK_SET);
+ size -= pos;
+ }
+ else
+ {
+ // offset parameter omitted, so it's 0
+ pos = lseek(fd, 0L, SEEK_SET);
+ }
+ }
+ else
+ return error(comma_error);
+ }
+ else
+ pos = lseek(fd, 0L, SEEK_SET);
+ }
+ else
+ {
+ // size & pos not given, so assume offset of 0 and all of the binary
+ 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); }
+ DEBUG { printf("INCBIN: File '%s' is %li bytes.\n", string[filename], size); }
char * fileBuffer = (char *)malloc(size);
bytesRead = read(fd, fileBuffer, size);
if (bytesRead != size)
{
- error("was only able to read %li bytes from binary file (%s, %li bytes)", bytesRead, string[tok[1]], size);
+ error("was only able to read %li bytes from binary file (%s, %li bytes)", bytesRead, string[filename], size);
return ERROR;
}
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");
+ // that?--nobody does; it's the code gremlins, or rum, what does it)
+ // N.B.: Since 'eval' is of type uint64_t, if it goes negative, it will
+ // have its high bit set.
+ if (eval & 0x8000000000000000)
+ return error("negative sizes not allowed in DS");
// In non-TDB section (BSS, ABS and M6502) just advance the location
// counter appropriately. In TDB sections, deposit (possibly large) chunks
just_bss = 1; // No data deposited (8-bit CPU mode)
}
- else if (cursect == M56001P || cursect == M56001X || cursect == M56001Y || cursect == M56001L)
+ else if (cursect & M56KPXYL)
{
// Change segment instead of marking blanks.
// Only mark segments we actually wrote something
}
ErrorIfNotAtEOL();
- return 0;
+ return OK;
+}
+
+
+//
+// dsm[.siz] expression
+// Define modulo storage
+// Quoting the Motorola assembler manual:
+// "The DSM directive reserves a block of memory the length of which in words is equal to
+// the value of <expression>.If the runtime location counter is not zero, this directive first
+// advances the runtime location counter to a base address that is a multiple of 2k, where
+// 2k >= <expression>."
+// The kicker of course is written a few sentences after:
+// "<label>, if present, will be assigned the value of the runtime location counter after a valid
+// base address has been established."
+//
+int d_dsm(WORD siz)
+{
+ TOKEN * tok_current = tok; // Keep track of where tok was when we entered this procedure
+ uint64_t eval;
+
+ if (abs_expr(&eval) != OK)
+ return 0;
+
+ // Round up to the next highest power of 2
+ // Nicked from https://graphics.stanford.edu/~seander/bithacks.html#RoundUpPowerOf2
+ eval--;
+ eval |= eval >> 1;
+ eval |= eval >> 2;
+ eval |= eval >> 4;
+ eval |= eval >> 8;
+ eval |= eval >> 16;
+
+ int units_to_skip;
+ units_to_skip = eval + 1 - sloc;
+ sloc += units_to_skip; // Bump up sloc - TODO: check if this goes over the RAM limits?
+
+ // If a label has been defined in the same line as dsm, its value also needs to be adjusted
+ if (label_defined)
+ {
+ SYM * label = lookup(label_defined, LABEL, 0);
+ label->svalue += units_to_skip;
+ }
+
+ tok = tok_current; // Rewind tok back to where it was
+ return d_ds(siz); // And let d_ds take over from here
}
//
-// dc.b, dc.w / dc, dc.l, dc.i, dc.q, dc.d
+// dc.b, dc.w / dc, dc.l, dc.i, dc.q, dc.d, dc.s, dc.x
//
int d_dc(WORD siz)
{
}
break;
+
case SIZW:
case SIZN:
if (!defined)
}
break;
+
case SIZL:
// Shamus: Why can't we do longs in 6502 mode?
if (m6502)
if (!defined)
{
- if (movei)
- AddFixup(FU_LONG | FU_MOVEI, sloc, exprbuf);
- else
- AddFixup(FU_LONG, sloc, exprbuf);
-
+ AddFixup(FU_LONG | (movei ? FU_MOVEI : 0), sloc, exprbuf);
D_long(0);
}
else
}
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...)
// DEFINITELY NEED FIXUPS HERE!
if (!defined)
{
AddFixup(FU_QUAD, sloc, exprbuf);
- D_quad(0LL);
- }
- else
- {
- D_quad(eval);
+ eval = 0;
}
+ D_quad(eval);
break;
+
case SIZS:
// 32-bit float size
if (m6502)
return error(in_6502mode);
+/* Seems to me that if something is undefined here, then that should be an error. Likewise for the D & X variants. */
if (!defined)
{
- AddFixup(FU_FLOATSING, sloc, exprbuf);
- D_long(0);
+// AddFixup(FU_FLOATSING, sloc, exprbuf);
+// D_long(0);
+ return error("labels not allowed in floating point expressions");
}
else
{
}
break;
+
case SIZD:
// 64-bit double size
if (m6502)
if (!defined)
{
- AddFixup(FU_FLOATDOUB, sloc, exprbuf);
- D_quad(0LL);
+// AddFixup(FU_FLOATDOUB, sloc, exprbuf);
+// D_quad(0LL);
+ return error("labels not allowed in floating point expressions");
}
else
{
}
break;
+
case SIZX:
if (m6502)
return error(in_6502mode);
if (!defined)
{
- AddFixup(FU_FLOATEXT, sloc, exprbuf);
- D_extend(extDbl);
+// AddFixup(FU_FLOATEXT, sloc, exprbuf);
+// D_extend(extDbl);
+ return error("labels not allowed in floating point expressions");
}
else
{
projects / rmac / blobdiff