X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fz80%2Fmain.c;h=eafbd6552f576da8f2ddd73f99098bb820918a11;hb=7acf410d97f954d4aa6f2a728e2faa39b555ba13;hp=b73194467e77411bc03e57bf862bcc99681d105f;hpb=d80ddef2ffb8b3106c54e91b3bcd9e1ab277a9dc;p=fw%2Fsdcc diff --git a/src/z80/main.c b/src/z80/main.c index b7319446..eafbd655 100644 --- a/src/z80/main.c +++ b/src/z80/main.c @@ -1,6 +1,31 @@ +/*------------------------------------------------------------------------- + main.c - Z80 specific definitions. + + Michael Hope 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 "z80.h" #include "MySystem.h" #include "BuildCmd.h" +#include "SDCCutil.h" static char _z80_defaultRules[] = { @@ -16,18 +41,27 @@ static char _gbz80_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, 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; @@ -44,6 +78,14 @@ extern PORT z80_port; #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) { @@ -57,46 +99,41 @@ _gbz80_init (void) z80_opts.sub = SUB_GBZ80; } -static int regParmFlg = 0; /* determine if we can register a parameter */ - static void _reset_regparm () { - 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) -{ - 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=")) { char buffer[128]; strcpy (buffer, sz + 5); - _chomp (buffer); + chomp (buffer); if (isdigit (buffer[0])) { @@ -111,7 +148,7 @@ _process_pragma (const char *sz) way. */ char num[128]; strcpy (num, sz + 5); - _chomp (num); + chomp (num); switch (_G.asmType) { @@ -129,7 +166,7 @@ _process_pragma (const char *sz) wassert (0); } } - gbz80_port.mem.code_name = gc_strdup (buffer); + gbz80_port.mem.code_name = Safe_strdup (buffer); code->sname = gbz80_port.mem.code_name; return 0; } @@ -150,15 +187,10 @@ static void _gbz80_rgblink (void) { FILE *lnkfile; - const char *sz; - int i; - sz = srcFileName; - if (!sz) - sz = "a"; /* first we need to create the .lnk file */ - sprintf (scratchFileName, "%s.lnk", sz); + sprintf (scratchFileName, "%s.lnk", dstFileName); if (!(lnkfile = fopen (scratchFileName, "w"))) { werror (E_FILE_OPEN_ERR, scratchFileName); @@ -167,8 +199,7 @@ _gbz80_rgblink (void) 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]); @@ -179,11 +210,11 @@ _gbz80_rgblink (void) fprintf (lnkfile, "%s\n", libFiles[i]); - 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)) { @@ -206,12 +237,12 @@ _parseOptions (int *pargc, char **argv, int *i) 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; } } @@ -239,11 +270,55 @@ _parseOptions (int *pargc, char **argv, int *i) _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; + } } } return FALSE; } +static void +_setValues(void) +{ + if (options.nostdlib == FALSE) + { + setMainValue ("z80libspec", "-k{libdir}{sep}{port} -l{port}.lib"); + setMainValue ("z80crt0", "{libdir}{sep}{port}{sep}crt0{objext}"); + } + else + { + setMainValue ("z80libspec", ""); + setMainValue ("z80crt0", ""); + } + + setMainValue ("z80extralibfiles", joinn (libFiles, nlibFiles)); + setMainValue ("z80extralibpaths", joinn (libPaths, nlibPaths)); + + if (IS_GB) + { + setMainValue ("z80outputtypeflag", "-z"); + setMainValue ("z80outext", ".gb"); + } + else + { + setMainValue ("z80outputtypeflag", "-i"); + setMainValue ("z80outext", ".ihx"); + } + + setMainValue ("z80stdobjdstfilename" , "{dstfilename}{objext}"); + setMainValue ("z80stdlinkdstfilename", "{dstfilename}{z80outext}"); + + setMainValue ("z80extraobj", joinn (relFiles, nrelFiles)); + + sprintf (buffer, "-b_CODE=0x%04X -b_DATA=0x%04X", options.code_loc, options.data_loc); + setMainValue ("z80bases", buffer); +} + static void _finaliseOptions (void) { @@ -251,6 +326,8 @@ _finaliseOptions (void) port->mem.default_globl_map = data; if (_G.asmType == ASM_TYPE_ASXXXX && IS_GB) asm_addTree (&_asxxxx_gb); + + _setValues(); } static void @@ -262,10 +339,19 @@ _setDefaultOptions (void) options.mainreturn = 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; - options.data_loc = 0x8000; + + if (IS_GB) + { + options.data_loc = 0xC000; + } + else + { + options.data_loc = 0x8000; + } optimize.global_cse = 1; optimize.label1 = 1; @@ -273,137 +359,98 @@ _setDefaultOptions (void) 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[] = -{ - "link-z80", - "-n", // Don't echo output - "-c", // Command line input - "--", // Again, command line input... - "-b_CODE=0x200", // Code starts at 0x200 - "-b_DATA=0x8000", // RAM starts at 0x8000 - "-j", // Output a symbol file as well - "-k" SDCC_LIB_DIR "/z80", // Library path - "-lz80.lib", // Library to use - "-i", // Output Intel IHX - "$1.ihx", // Output to - SDCC_LIB_DIR "/z80/crt0.o", // Link in crt0 first - "$1.o", // Actual code - NULL -}; - -/* sprintf that appends to the string. */ -static void -_saprintf(char *pinto, const char *format, ...) +static bool +_hasNativeMulFor (iCode *ic, sym_link *left, sym_link *right) { - va_list ap; - va_start(ap, format); - - vsprintf(pinto + strlen(pinto), format, ap); - va_end(ap); -} + sym_link *test = NULL; + value *val; -static void -_z80_link(void) -{ - int i; - // PENDING - char buffer[2048]; - - sprintf(buffer, - "link-z80 " - "-n " // Don't echo output - "-c " // Command line input - "-- " // Again, command line input... - "-b_CODE=0x%04X " // Code starts at 0x200 - "-b_DATA=0x%04X " // RAM starts at 0x8000 - "-j ", // Output a symbol file as well - options.code_loc, - options.data_loc - ); - - // Add the standard lib in. - if (options.nostdlib == FALSE) { - _saprintf(buffer, - "-k" SDCC_LIB_DIR "/z80 " // Library path - "-lz80.lib " // Library to use - ); + if ( ic->op != '*') + { + return FALSE; } - // Add in the library paths and libraries - for (i = 0; i < nlibFiles; i++) { - _saprintf(buffer, "-k%s ", libFiles[i]); + if ( IS_LITERAL (left)) + { + test = left; + val = OP_VALUE (IC_LEFT (ic)); } - for (i = 0; i < nlibPaths; i++) { - _saprintf(buffer, "-l%s ", libPaths[i]); + else if ( IS_LITERAL (right)) + { + test = left; + val = OP_VALUE (IC_RIGHT (ic)); } - - _saprintf(buffer, - "-i " // Output Intel IHX - "%s.ihx ", // Output to - srcFileName - ); - - if (options.nostdlib == FALSE) { - _saprintf(buffer, - SDCC_LIB_DIR "/z80/crt0.o " // Link in crt0 first - ); + else + { + return FALSE; } - _saprintf(buffer, - "%s.o ", // Actual code - srcFileName - ); - - // Append all the other targets - for (i = 0; i < nrelFiles; i++) { - _saprintf(buffer, "%s ", relFiles[i]); + if ( getSize (test) <= 2) + { + return TRUE; } - // Do it. - if (my_system (buffer)) { - exit(1); - } + return FALSE; } -static const char *_z80_asmCmd[] = -{ - "as-z80", "-plosgff", "$1.o", "$1.asm", NULL -}; - -/** $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[] = -{ - // PENDING - "link-gbz80", "-nf", "$1", NULL -}; +#define LINKCMD \ + "{bindir}{sep}link-{port} -n -c -- {z80bases} -m -j" \ + " {z80libspec}" \ + " {z80extralibfiles} {z80extralibpaths}" \ + " {z80outputtypeflag} {z80linkdstfilename}" \ + " {z80crt0}" \ + " {dstfilename}{objext}" \ + " {z80extraobj}" -static const char *_gbz80_asmCmd[] = -{ - "as-gbz80", "-plosgff", "$1.o", "$1.asm", NULL -}; +#define ASMCMD \ + "{bindir}{sep}as-{port} -plosgff {z80objdstfilename} {dstfilename}{asmext}" /* Globals */ PORT z80_port = @@ -411,21 +458,24 @@ PORT z80_port = TARGET_ID_Z80, "z80", "Zilog Z80", /* Target name */ + NULL, /* Processor name */ { FALSE, MODEL_MEDIUM | MODEL_SMALL, MODEL_SMALL }, { - _z80_asmCmd, + NULL, + ASMCMD, "-plosgff", /* Options with debug */ "-plosgff", /* Options without debug */ 0, ".asm" }, { - _z80_linkCmd, - _z80_link, + NULL, + LINKCMD, + NULL, ".o" }, { @@ -448,6 +498,8 @@ PORT z80_port = "OVERLAY", "GSFINAL", "HOME", + NULL, // xidata + NULL, // xinit NULL, NULL, 1 @@ -462,16 +514,21 @@ PORT z80_port = "_", _z80_init, _parseOptions, + _z80_options, _finaliseOptions, _setDefaultOptions, z80_assignRegisters, _getRegName, _keywords, 0, /* no assembler preamble */ + NULL, /* no genAssemblerEnd */ 0, /* no local IVT generation code */ + 0, /* no genXINIT code */ _reset_regparm, _reg_parm, _process_pragma, + _mangleSupportFunctionName, + _hasNativeMulFor, TRUE, 0, /* leave lt */ 0, /* leave gt */ @@ -479,6 +536,12 @@ PORT z80_port = 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 }; @@ -488,20 +551,24 @@ PORT gbz80_port = TARGET_ID_GBZ80, "gbz80", "Gameboy Z80-like", /* Target name */ + NULL, { FALSE, MODEL_MEDIUM | MODEL_SMALL, MODEL_SMALL }, { - _gbz80_asmCmd, + NULL, + ASMCMD, "-plosgff", /* Options with debug */ "-plosgff", /* Options without debug */ - 1, - ".asm" + 0, + ".asm", + NULL /* no do_assemble function */ }, { - _gbz80_linkCmd, + NULL, + LINKCMD, NULL, ".o" }, @@ -509,8 +576,8 @@ PORT gbz80_port = _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", @@ -525,6 +592,8 @@ PORT gbz80_port = "OVERLAY", "GSFINAL", "HOME", + NULL, // xidata + NULL, // xinit NULL, NULL, 1 @@ -539,16 +608,21 @@ PORT gbz80_port = "_", _gbz80_init, _parseOptions, + _z80_options, _finaliseOptions, _setDefaultOptions, z80_assignRegisters, _getRegName, _keywords, 0, /* no assembler preamble */ + NULL, /* no genAssemblerEnd */ 0, /* no local IVT generation code */ + 0, /* no genXINIT code */ _reset_regparm, _reg_parm, _process_pragma, + _mangleSupportFunctionName, + _hasNativeMulFor, TRUE, 0, /* leave lt */ 0, /* leave gt */ @@ -556,5 +630,11 @@ PORT gbz80_port = 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 };