+/*-------------------------------------------------------------------------
+ main.c - Z80 specific definitions.
+
+ Michael Hope <michaelh@juju.net.nz> 2001
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the
+ Free Software Foundation; either version 2, or (at your option) any
+ later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ In other words, you are welcome to use, share and improve this program.
+ You are forbidden to forbid anyone else to use, share and improve
+ what you give them. Help stamp out software-hoarding!
+-------------------------------------------------------------------------*/
+
+#include <sys/stat.h>
#include "z80.h"
#include "MySystem.h"
#include "BuildCmd.h"
+#include "SDCCutil.h"
+#include "dbuf.h"
static char _z80_defaultRules[] =
{
Z80_OPTS z80_opts;
+static OPTION _z80_options[] =
+ {
+ { 0, "--callee-saves-bc", &z80_opts.calleeSavesBC, "Force a called function to always save BC" },
+ { 0, "--portmode=", NULL, "Determine PORT I/O mode (z80/z180)" },
+ { 0, NULL }
+ };
+
+static OPTION _gbz80_options[] =
+ {
+ { 0, "--callee-saves-bc", &z80_opts.calleeSavesBC, "Force a called function to always save BC" },
+ { 0, NULL }
+ };
+
typedef enum
{
/* Must be first */
ASM_TYPE_ASXXXX,
ASM_TYPE_RGBDS,
- ASM_TYPE_ISAS
+ ASM_TYPE_ISAS,
+ ASM_TYPE_Z80ASM
}
ASM_TYPE;
static struct
{
ASM_TYPE asmType;
+ /* determine if we can register a parameter */
+ int regParams;
}
_G;
"sfr",
"nonbanked",
"banked",
+ "at", //.p.t.20030714 adding support for 'sfr at ADDR' construct
+ "_naked", //.p.t.20030714 adding support for '_naked' functions
+ "critical",
+ "interrupt",
NULL
};
#include "mappings.i"
+static builtins _z80_builtins[] = {
+ /* Disabled for now.
+ { "__builtin_strcpy", "v", 2, {"cg*", "cg*" } },
+ { "__builtin_memcpy", "cg*", 3, {"cg*", "cg*", "ui" } },
+ */
+ { NULL , NULL,0, {NULL}}
+};
+
static void
_z80_init (void)
{
z80_opts.sub = SUB_GBZ80;
}
-static int regParmFlg = 0; /* determine if we can register a parameter */
-
static void
-_reset_regparm ()
+_reset_regparm (void)
{
- regParmFlg = 0;
+ _G.regParams = 0;
}
static int
-_reg_parm (sym_link * l)
-{
- if (regParmFlg == 2)
- return 0;
-
- regParmFlg++;
- return 1;
-}
-
-static bool
-_startsWith (const char *sz, const char *key)
-{
- return !strncmp (sz, key, strlen (key));
-}
-
-static void
-_chomp (char *sz)
+_reg_parm (sym_link * l, bool reentrant)
{
- char *nl;
- while ((nl = strrchr (sz, '\n')))
- *nl = '\0';
+ if (options.noRegParams)
+ {
+ return FALSE;
+ }
+ else
+ {
+ if (_G.regParams == 2)
+ {
+ return FALSE;
+ }
+ else
+ {
+ _G.regParams++;
+ return TRUE;
+ }
+ }
}
-
static int
_process_pragma (const char *sz)
{
- if (_startsWith (sz, "bank="))
+ if( startsWith( sz, "bank=" ) || startsWith( sz, "bank " ))
+ {
+ char buffer[128];
+
+ if (sz[4]=='=')
+ werror(W_DEPRECATED_PRAGMA, "bank=");
+
+ strncpy (buffer, sz + 5, sizeof (buffer));
+ buffer[sizeof (buffer) - 1 ] = '\0';
+ chomp (buffer);
+ if (isdigit ((unsigned char)buffer[0]))
{
- char buffer[128];
- strcpy (buffer, sz + 5);
- _chomp (buffer);
- if (isdigit (buffer[0]))
- {
- }
- else if (!strcmp (buffer, "BASE"))
- {
- strcpy (buffer, "HOME");
- }
- if (isdigit (buffer[0]))
- {
+ }
+ else if (!strcmp (buffer, "BASE"))
+ {
+ strcpy (buffer, "HOME");
+ }
+ if (isdigit ((unsigned char)buffer[0]))
+ {
/* Arg was a bank number. Handle in an ASM independent
way. */
- char num[128];
- strcpy (num, sz + 5);
- _chomp (num);
+ char num[128];
+ strncpy (num, sz + 5, sizeof (num));
+ num[sizeof (num) -1] = '\0';
+ chomp (num);
- switch (_G.asmType)
- {
+ switch (_G.asmType)
+ {
case ASM_TYPE_ASXXXX:
sprintf (buffer, "CODE_%s", num);
break;
break;
default:
wassert (0);
- }
- }
- gbz80_port.mem.code_name = gc_strdup (buffer);
- code->sname = gbz80_port.mem.code_name;
- return 0;
+ }
}
+ gbz80_port.mem.code_name = Safe_strdup (buffer);
+ code->sname = gbz80_port.mem.code_name;
+ return 0;
+ }
+ else if( startsWith( sz, "portmode=" ) || startsWith( sz, "portmode " ))
+ { /*.p.t.20030716 - adding pragma to manipulate z80 i/o port addressing modes */
+ char bfr[128];
+
+ if (sz[8]=='=')
+ werror(W_DEPRECATED_PRAGMA, "portmode=");
+
+ strncpy( bfr, sz + 9, sizeof (bfr));
+ bfr[sizeof (bfr) - 1] = '\0';
+ chomp( bfr );
+
+ if ( !strcmp( bfr, "z80" )){ z80_opts.port_mode = 80; }
+ else if( !strcmp( bfr, "z180" )){ z80_opts.port_mode = 180; }
+ else if( !strcmp( bfr, "save" )){ z80_opts.port_back = z80_opts.port_mode; }
+ else if( !strcmp( bfr, "restore" )){ z80_opts.port_mode = z80_opts.port_back; }
+ else return( 1 );
+
+ return( 0 );
+ }
+
return 1;
}
static const char *_gbz80_rgbasmCmd[] =
{
- "rgbasm", "-o$1.o", "$1.asm", NULL
+ "rgbasm", "-o\"$1.o\"", "\"$1.asm\"", NULL
};
static const char *_gbz80_rgblinkCmd[] =
{
- "xlink", "-tg", "-n$1.sym", "-m$1.map", "-zFF", "$1.lnk", NULL
+ "xlink", "-tg", "-n\"$1.sym\"", "-m\"$1.map\"", "-zFF", "\"$1.lnk\"", NULL
};
static void
_gbz80_rgblink (void)
{
FILE *lnkfile;
- const char *sz;
-
- int i;
- sz = srcFileName;
- if (!sz)
- sz = "a";
/* first we need to create the <filename>.lnk file */
- sprintf (scratchFileName, "%s.lnk", sz);
+ sprintf (scratchFileName, "%s.lnk", dstFileName);
if (!(lnkfile = fopen (scratchFileName, "w")))
{
werror (E_FILE_OPEN_ERR, scratchFileName);
fprintf (lnkfile, "[Objects]\n");
- if (srcFileName)
- fprintf (lnkfile, "%s.o\n", sz);
+ fprintf (lnkfile, "%s.o\n", dstFileName);
- for (i = 0; i < nrelFiles; i++)
- fprintf (lnkfile, "%s\n", relFiles[i]);
+ fputStrSet(lnkfile, relFilesSet);
fprintf (lnkfile, "\n[Libraries]\n");
/* additional libraries if any */
- for (i = 0; i < nlibFiles; i++)
- fprintf (lnkfile, "%s\n", libFiles[i]);
+ fputStrSet(lnkfile, libFilesSet);
-
- fprintf (lnkfile, "\n[Output]\n" "%s.gb", sz);
+ fprintf (lnkfile, "\n[Output]\n" "%s.gb", dstFileName);
fclose (lnkfile);
- buildCmdLine (buffer,port->linker.cmd, sz, NULL, NULL, NULL);
+ buildCmdLine (buffer,port->linker.cmd, dstFileName, NULL, NULL, NULL);
/* call the linker */
if (my_system (buffer))
{
case 'o':
/* ROM bank */
sprintf (buffer, "CODE_%u", bank);
- gbz80_port.mem.code_name = gc_strdup (buffer);
+ gbz80_port.mem.code_name = Safe_strdup (buffer);
return TRUE;
case 'a':
/* RAM bank */
sprintf (buffer, "DATA_%u", bank);
- gbz80_port.mem.data_name = gc_strdup (buffer);
+ gbz80_port.mem.data_name = Safe_strdup (buffer);
return TRUE;
}
}
_G.asmType = ASM_TYPE_ISAS;
return TRUE;
}
+ else if (!strcmp (argv[*i], "--asm=z80asm"))
+ {
+ port->assembler.externGlobal = TRUE;
+ asm_addTree (&_z80asm_z80);
+ _G.asmType = ASM_TYPE_ISAS;
+ return TRUE;
+ }
}
+ else if (!strncmp (argv[*i], "--portmode=", 11))
+ {
+ if (!strcmp (argv[*i], "--portmode=z80"))
+ {
+ z80_opts.port_mode = 80;
+ return TRUE;
+ }
+ else if (!strcmp (argv[*i], "--portmode=z180"))
+ {
+ z80_opts.port_mode = 180;
+ return TRUE;
+ }
+ }
}
return FALSE;
}
+static void
+_setValues(void)
+{
+ const char *s;
+
+ if (options.nostdlib == FALSE)
+ {
+ const char *s;
+ char path[PATH_MAX];
+ struct dbuf_s dbuf;
+
+ dbuf_init(&dbuf, PATH_MAX);
+
+ for (s = setFirstItem(libDirsSet); s != NULL; s = setNextItem(libDirsSet))
+ {
+ buildCmdLine2(path, sizeof path, "-k\"%s" DIR_SEPARATOR_STRING "{port}\" ", s);
+ dbuf_append(&dbuf, path, strlen(path));
+ }
+ buildCmdLine2(path, sizeof path, "-l\"{port}.lib\"", s);
+ dbuf_append(&dbuf, path, strlen(path));
+
+ setMainValue ("z80libspec", dbuf_c_str(&dbuf));
+ dbuf_destroy(&dbuf);
+
+ for (s = setFirstItem(libDirsSet); s != NULL; s = setNextItem(libDirsSet))
+ {
+ struct stat stat_buf;
+
+ buildCmdLine2(path, sizeof path, "%s" DIR_SEPARATOR_STRING "{port}" DIR_SEPARATOR_STRING "crt0{objext}", s);
+ if (stat(path, &stat_buf) == 0)
+ break;
+ }
+
+ if (s == NULL)
+ setMainValue ("z80crt0", "\"crt0{objext}\"");
+ else
+ {
+ char *buf;
+ size_t len = strlen(path) + 3;
+
+ buf = Safe_alloc(len);
+ SNPRINTF(buf, len, "\"%s\"", path);
+ setMainValue("z80crt0", buf);
+ Safe_free(buf);
+ }
+ }
+ else
+ {
+ setMainValue ("z80libspec", "");
+ setMainValue ("z80crt0", "");
+ }
+
+ setMainValue ("z80extralibfiles", (s = joinStrSet(libFilesSet)));
+ Safe_free((void *)s);
+ setMainValue ("z80extralibpaths", (s = joinStrSet(libPathsSet)));
+ Safe_free((void *)s);
+
+ if (IS_GB)
+ {
+ setMainValue ("z80outputtypeflag", "-z");
+ setMainValue ("z80outext", ".gb");
+ }
+ else
+ {
+ setMainValue ("z80outputtypeflag", "-i");
+ setMainValue ("z80outext", ".ihx");
+ }
+
+ setMainValue ("stdobjdstfilename" , "{dstfilename}{objext}");
+ setMainValue ("stdlinkdstfilename", "{dstfilename}{z80outext}");
+
+ setMainValue ("z80extraobj", (s = joinStrSet(relFilesSet)));
+ Safe_free((void *)s);
+
+ sprintf (buffer, "-b_CODE=0x%04X -b_DATA=0x%04X", options.code_loc, options.data_loc);
+ setMainValue ("z80bases", buffer);
+}
+
static void
_finaliseOptions (void)
{
port->mem.default_globl_map = data;
if (_G.asmType == ASM_TYPE_ASXXXX && IS_GB)
asm_addTree (&_asxxxx_gb);
+
+ _setValues();
}
static void
_setDefaultOptions (void)
{
- options.genericPtr = 1; /* default on */
options.nopeep = 0;
options.stackAuto = 1;
options.mainreturn = 1;
- options.nodebug = 1;
/* first the options part */
options.intlong_rent = 1;
+ options.float_rent = 1;
+ options.noRegParams = 1;
+ /* Default code and data locations. */
+ options.code_loc = 0x200;
+
+ if (IS_GB)
+ {
+ options.data_loc = 0xC000;
+ }
+ else
+ {
+ options.data_loc = 0x8000;
+ }
optimize.global_cse = 1;
optimize.label1 = 1;
optimize.label3 = 1;
optimize.label4 = 1;
optimize.loopInvariant = 1;
- optimize.loopInduction = 0;
+ optimize.loopInduction = 1;
+}
+
+/* Mangaling format:
+ _fun_policy_params
+ where:
+ policy is the function policy
+ params is the parameter format
+
+ policy format:
+ rsp
+ where:
+ r is 'r' for reentrant, 's' for static functions
+ s is 'c' for callee saves, 'r' for caller saves
+ p is 'p' for profiling on, 'x' for profiling off
+ examples:
+ rr - reentrant, caller saves
+ params format:
+ A combination of register short names and s to signify stack variables.
+ examples:
+ bds - first two args appear in BC and DE, the rest on the stack
+ s - all arguments are on the stack.
+*/
+static char *
+_mangleSupportFunctionName(char *original)
+{
+ char buffer[128];
+
+ sprintf(buffer, "%s_rr%s_%s", original,
+ options.profile ? "f" : "x",
+ options.noRegParams ? "s" : "bds"
+ );
+
+ return Safe_strdup(buffer);
}
static const char *
_getRegName (struct regs *reg)
{
if (reg)
- return reg->name;
- assert (0);
+ {
+ return reg->name;
+ }
+ /* assert (0); */
return "err";
}
-/** $1 is always the basename.
- $2 is always the output file.
- $3 varies
- $l is the list of extra options that should be there somewhere...
- MUST be terminated with a NULL.
-*/
-static const char *_z80_linkCmd[] =
+static bool
+_hasNativeMulFor (iCode *ic, sym_link *left, sym_link *right)
{
- "link-z80", "-nf", "$1", NULL
-};
+ sym_link *test = NULL;
+ value *val;
-static const char *_z80_asmCmd[] =
-{
- "as-z80", "-plosgff", "$1.o", "$1.asm", NULL
-};
+ if ( ic->op != '*')
+ {
+ return FALSE;
+ }
-/** $1 is always the basename.
- $2 is always the output file.
- $3 varies
- $l is the list of extra options that should be there somewhere...
- MUST be terminated with a NULL.
-*/
-static const char *_gbz80_linkCmd[] =
+ if ( IS_LITERAL (left))
+ {
+ test = left;
+ val = OP_VALUE (IC_LEFT (ic));
+ }
+ else if ( IS_LITERAL (right))
+ {
+ test = left;
+ val = OP_VALUE (IC_RIGHT (ic));
+ }
+ else
+ {
+ return FALSE;
+ }
+
+ if ( getSize (test) <= 2)
+ {
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+/* Indicate which extended bit operations this port supports */
+static bool
+hasExtBitOp (int op, int size)
{
- "link-gbz80", "-nf", "$1", NULL
-};
+ if (op == GETHBIT)
+ return TRUE;
+ else
+ return FALSE;
+}
-static const char *_gbz80_asmCmd[] =
+/* Indicate the expense of an access to an output storage class */
+static int
+oclsExpense (struct memmap *oclass)
{
- "as-gbz80", "-plosgff", "$1.o", "$1.asm", NULL
-};
+ if (IN_FARSPACE(oclass))
+ return 1;
+
+ return 0;
+}
+
+
+#define LINKCMD "link-{port} -nf {dstfilename}"
+/*
+#define LINKCMD \
+ "link-{port} -n -c -- {z80bases} -m -j" \
+ " {z80libspec}" \
+ " {z80extralibfiles} {z80extralibpaths}" \
+ " {z80outputtypeflag} \"{linkdstfilename}\"" \
+ " {z80crt0}" \
+ " \"{dstfilename}{objext}\"" \
+ " {z80extraobj}"
+*/
+
+#define ASMCMD \
+ "as-{port} -plosgff \"{objdstfilename}\" \"{dstfilename}{asmext}\""
/* Globals */
PORT z80_port =
TARGET_ID_Z80,
"z80",
"Zilog Z80", /* Target name */
+ NULL, /* Processor name */
{
+ glue,
FALSE,
MODEL_MEDIUM | MODEL_SMALL,
MODEL_SMALL
},
{
- _z80_asmCmd,
+ NULL,
+ ASMCMD,
"-plosgff", /* Options with debug */
"-plosgff", /* Options without debug */
0,
".asm"
},
{
- _z80_linkCmd,
NULL,
- ".o"
+ LINKCMD,
+ NULL,
+ ".o",
+ 1
},
{
_z80_defaultRules
},
{
/* Sizes: char, short, int, long, ptr, fptr, gptr, bit, float, max */
- 1, 1, 2, 4, 2, 2, 2, 1, 4, 4
+ 1, 2, 2, 4, 2, 2, 2, 1, 4, 4
},
{
"XSEG",
"CODE",
"DATA",
"ISEG",
+ NULL, /* pdata */
"XSEG",
"BSEG",
"RSEG",
"OVERLAY",
"GSFINAL",
"HOME",
+ NULL, /* xidata */
+ NULL, /* xinit */
+ NULL, /* const_name */
NULL,
NULL,
1
},
+ { NULL, NULL },
{
-1, 0, 0, 4, 0, 2
},
{
0, 2
},
+ {
+ z80_emitDebuggerSymbol
+ },
+ {
+ 255, /* maxCount */
+ 3, /* sizeofElement */
+ /* The rest of these costs are bogus. They approximate */
+ /* the behavior of src/SDCCicode.c 1.207 and earlier. */
+ {4,4,4}, /* sizeofMatchJump[] */
+ {0,0,0}, /* sizeofRangeCompare[] */
+ 0, /* sizeofSubtract */
+ 3, /* sizeofDispatch */
+ },
"_",
_z80_init,
_parseOptions,
+ _z80_options,
+ NULL,
_finaliseOptions,
_setDefaultOptions,
z80_assignRegisters,
_getRegName,
_keywords,
0, /* no assembler preamble */
+ NULL, /* no genAssemblerEnd */
0, /* no local IVT generation code */
+ 0, /* no genXINIT code */
+ NULL, /* genInitStartup */
_reset_regparm,
_reg_parm,
_process_pragma,
+ _mangleSupportFunctionName,
+ _hasNativeMulFor,
+ hasExtBitOp, /* hasExtBitOp */
+ oclsExpense, /* oclsExpense */
TRUE,
+ TRUE, /* little endian */
0, /* leave lt */
0, /* leave gt */
1, /* transform <= to ! > */
1, /* transform >= to ! < */
1, /* transform != to !(a == b) */
0, /* leave == */
+ TRUE, /* Array initializer support. */
+ 0, /* no CSE cost estimation yet */
+ _z80_builtins, /* no builtin functions */
+ GPOINTER, /* treat unqualified pointers as "generic" pointers */
+ 1, /* reset labelKey to 1 */
+ 1, /* globals & local static allowed */
PORT_MAGIC
};
TARGET_ID_GBZ80,
"gbz80",
"Gameboy Z80-like", /* Target name */
+ NULL,
{
+ glue,
FALSE,
MODEL_MEDIUM | MODEL_SMALL,
MODEL_SMALL
},
{
- _gbz80_asmCmd,
+ NULL,
+ ASMCMD,
"-plosgff", /* Options with debug */
"-plosgff", /* Options without debug */
- 1
+ 0,
+ ".asm",
+ NULL /* no do_assemble function */
},
{
- _gbz80_linkCmd,
NULL,
- ".o"
+ LINKCMD,
+ NULL,
+ ".o",
+ 1
},
{
_gbz80_defaultRules
},
{
- /* Sizes: char, short, int, long, ptr, fptr, gptr, bit, float, max */
- 1, 1, 2, 4, 2, 2, 2, 1, 4, 4
+ /* Sizes: char, short, int, long, ptr, fptr, gptr, bit, float, max */
+ 1, 2, 2, 4, 2, 2, 2, 1, 4, 4
},
{
"XSEG",
"CODE",
"DATA",
"ISEG",
+ NULL, /* pdata */
"XSEG",
"BSEG",
"RSEG",
"OVERLAY",
"GSFINAL",
"HOME",
+ NULL, /* xidata */
+ NULL, /* xinit */
+ NULL, /* const_name */
NULL,
NULL,
1
},
+ { NULL, NULL },
{
-1, 0, 0, 2, 0, 4
},
{
0, 2
},
+ {
+ z80_emitDebuggerSymbol
+ },
+ {
+ 255, /* maxCount */
+ 3, /* sizeofElement */
+ /* The rest of these costs are bogus. They approximate */
+ /* the behavior of src/SDCCicode.c 1.207 and earlier. */
+ {4,4,4}, /* sizeofMatchJump[] */
+ {0,0,0}, /* sizeofRangeCompare[] */
+ 0, /* sizeofSubtract */
+ 3, /* sizeofDispatch */
+ },
"_",
_gbz80_init,
_parseOptions,
+ _gbz80_options,
+ NULL,
_finaliseOptions,
_setDefaultOptions,
z80_assignRegisters,
_getRegName,
_keywords,
0, /* no assembler preamble */
+ NULL, /* no genAssemblerEnd */
0, /* no local IVT generation code */
+ 0, /* no genXINIT code */
+ NULL, /* genInitStartup */
_reset_regparm,
_reg_parm,
_process_pragma,
+ _mangleSupportFunctionName,
+ _hasNativeMulFor,
+ hasExtBitOp, /* hasExtBitOp */
+ oclsExpense, /* oclsExpense */
TRUE,
+ TRUE, /* little endian */
0, /* leave lt */
0, /* leave gt */
1, /* transform <= to ! > */
1, /* transform >= to ! < */
1, /* transform != to !(a == b) */
0, /* leave == */
+ TRUE, /* Array initializer support. */
+ 0, /* no CSE cost estimation yet */
+ NULL, /* no builtin functions */
+ GPOINTER, /* treat unqualified pointers as "generic" pointers */
+ 1, /* reset labelKey to 1 */
+ 1, /* globals & local static allowed */
PORT_MAGIC
};
projects / fw / sdcc / blobdiff