/* * scpu64model.c - SCPU64 model detection and setting. * * Written by * Hannu Nuotio * groepaz * Marco van den Heuvel * * This file is part of VICE, the Versatile Commodore Emulator. * See README for copyright notice. * * 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 of the License, 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, Inc., 59 Temple Place, Suite 330, Boston, MA * 02111-1307 USA. * */ #include "vice.h" #include #include "c64-resources.h" #include "c64model.h" #include "cia.h" #include "machine.h" #include "resources.h" #include "scpu64rom.h" #include "sid.h" #include "types.h" #include "vicii.h" /******************************************************************************/ #define CIA_MODEL_DEFAULT_OLD CIA_MODEL_6526 #define CIA_MODEL_DEFAULT_NEW CIA_MODEL_6526A static int scpu64model_get_temp(int vicii_model, int sid_model, int glue_logic, int cia1model, int cia2model, int iecreset, const char *chargen); static void scpu64model_set_temp(int model, int *vicii_model, int *sid_model, int *glue_logic, int *cia1model, int *cia2model, int *iecreset, const char *chargen); /******************************************************************************/ static int is_new_sid(int model) { switch (model) { case SID_MODEL_6581: default: return 0; case SID_MODEL_8580: case SID_MODEL_8580D: return 1; } } static int is_new_cia(int model) { switch (model) { case CIA_MODEL_6526: default: return 0; case CIA_MODEL_6526A: return 1; } } struct model_s { int vicii; /* VIC-II model */ int video; /* machine video timing */ int ciatick; int cia; /* old or new */ int glue; /* discrete or ASIC */ int sid; /* old or new */ int iecreset; int iec; int userport; int keyboard; const char *chargenname; }; static const struct model_s scpu64models[] = { /* C64 PAL / PET64 PAL */ { VICII_MODEL_6569, MACHINE_SYNC_PAL, CIATICK_NET, CIA_MODEL_DEFAULT_OLD, GLUE_DISCRETE, OLD_SID, IEC_SOFT_RESET, HAS_IEC, HAS_USERPORT, HAS_KEYBOARD, C64_CHARGEN_NAME }, /* C64C PAL */ { VICII_MODEL_8565, MACHINE_SYNC_PAL, CIATICK_NET, CIA_MODEL_DEFAULT_NEW, GLUE_CUSTOM_IC, NEW_SID, IEC_HARD_RESET, HAS_IEC, HAS_USERPORT, HAS_KEYBOARD, C64_CHARGEN_NAME }, /* C64 OLD PAL */ { VICII_MODEL_6569R1, MACHINE_SYNC_PAL, CIATICK_NET, CIA_MODEL_DEFAULT_OLD, GLUE_DISCRETE, OLD_SID, IEC_SOFT_RESET, HAS_IEC, HAS_USERPORT, HAS_KEYBOARD, C64_CHARGEN_NAME }, /* C64 NTSC / PET64 NTSC */ { VICII_MODEL_6567, MACHINE_SYNC_NTSC, CIATICK_NET, CIA_MODEL_DEFAULT_OLD, GLUE_DISCRETE, OLD_SID, IEC_SOFT_RESET, HAS_IEC, HAS_USERPORT, HAS_KEYBOARD, C64_CHARGEN_NAME }, /* C64C NTSC */ { VICII_MODEL_8562, MACHINE_SYNC_NTSC, CIATICK_NET, CIA_MODEL_DEFAULT_NEW, GLUE_CUSTOM_IC, NEW_SID, IEC_HARD_RESET, HAS_IEC, HAS_USERPORT, HAS_KEYBOARD, C64_CHARGEN_NAME }, /* C64 OLD NTSC */ { VICII_MODEL_6567R56A, MACHINE_SYNC_NTSCOLD, CIATICK_NET, CIA_MODEL_DEFAULT_OLD, GLUE_DISCRETE, OLD_SID, IEC_SOFT_RESET, HAS_IEC, HAS_USERPORT, HAS_KEYBOARD, C64_CHARGEN_NAME }, /* C64 PAL-N */ { VICII_MODEL_6572, MACHINE_SYNC_PALN, CIATICK_NET, CIA_MODEL_DEFAULT_OLD, GLUE_DISCRETE, OLD_SID, IEC_SOFT_RESET, HAS_IEC, HAS_USERPORT, HAS_KEYBOARD, C64_CHARGEN_NAME }, /* SX64 PAL, FIXME: guessed */ { VICII_MODEL_6569, MACHINE_SYNC_PAL, CIATICK_60HZ, CIA_MODEL_DEFAULT_OLD, GLUE_DISCRETE, OLD_SID, IEC_SOFT_RESET, HAS_IEC, HAS_USERPORT, HAS_KEYBOARD, C64_CHARGEN_NAME }, /* SX64 NTSC, FIXME: guessed */ { VICII_MODEL_6567, MACHINE_SYNC_NTSC, CIATICK_60HZ, CIA_MODEL_DEFAULT_OLD, GLUE_DISCRETE, OLD_SID, IEC_SOFT_RESET, HAS_IEC, HAS_USERPORT, HAS_KEYBOARD, C64_CHARGEN_NAME }, /* C64 Japanese, FIXME: guessed */ { VICII_MODEL_6567, MACHINE_SYNC_NTSC, CIATICK_NET, CIA_MODEL_DEFAULT_OLD, GLUE_DISCRETE, OLD_SID, IEC_SOFT_RESET, HAS_IEC, HAS_USERPORT, HAS_KEYBOARD, C64_CHARGEN_JAP_NAME }, /* C64 GS, FIXME: guessed */ { VICII_MODEL_8565, MACHINE_SYNC_PAL, CIATICK_NET, CIA_MODEL_DEFAULT_NEW, GLUE_CUSTOM_IC, NEW_SID, IEC_HARD_RESET, NO_IEC, NO_USERPORT, NO_KEYBOARD, C64_CHARGEN_NAME }, /* end of list */ { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, NULL }, }; /* ------------------------------------------------------------------------- */ static int scpu64model_get_temp(int vicii_model, int sid_model, int glue_logic, int cia1model, int cia2model, int iecreset, const char *chargen) { int new_sid; int new_cia; int i; if (cia1model != cia2model) { return C64MODEL_UNKNOWN; } new_sid = is_new_sid(sid_model); new_cia = is_new_cia(cia1model); for (i = 0; scpu64models[i].chargenname != NULL; ++i) { if ((scpu64models[i].vicii == vicii_model) && (is_new_cia(scpu64models[i].cia) == new_cia) && (scpu64models[i].glue == glue_logic) && (scpu64models[i].sid == new_sid) && (scpu64models[i].iecreset == iecreset) && (chargen && (strcmp(scpu64models[i].chargenname, chargen) == 0))) { return i; } } return C64MODEL_UNKNOWN; } /* get model from details */ int c64model_get_model(c64model_details_t *details) { return scpu64model_get_temp(details->vicii_model, details->sid_model, details->glue_logic, details->cia1_model, details->cia2_model, details->iecreset, details->chargen); } int c64model_get(void) { int vicii_model, sid_model, glue_logic, cia1model, cia2model, iecreset; const char *chargen; if ((resources_get_int("VICIIModel", &vicii_model) < 0) || (resources_get_int("SidModel", &sid_model) < 0) || (resources_get_int("GlueLogic", &glue_logic) < 0) || (resources_get_int("CIA1Model", &cia1model) < 0) || (resources_get_int("CIA2Model", &cia2model) < 0) || (resources_get_int("IECReset", &iecreset) < 0) || (resources_get_string("ChargenName", &chargen) < 0)) { return -1; } return scpu64model_get_temp(vicii_model, sid_model, glue_logic, cia1model, cia2model, iecreset, chargen); } static void scpu64model_set_temp(int model, int *vicii_model, int *sid_model, int *glue_logic, int *cia1model, int *cia2model, int *iecreset, const char *chargen) { int old_model; int old_engine; int old_sid_model; int new_sid_model; int old_type; int new_type; old_model = scpu64model_get_temp(*vicii_model, *sid_model, *glue_logic, *cia1model, *cia2model, *iecreset, chargen); if ((model == old_model) || (model == C64MODEL_UNKNOWN)) { return; } *vicii_model = scpu64models[model].vicii; *cia1model = scpu64models[model].cia; *cia2model = scpu64models[model].cia; *glue_logic = scpu64models[model].glue; *iecreset = scpu64models[model].iecreset; /* Only change the SID model if the model changes from 6581 to 8580. This allows to switch between "pal"/"oldpal" without changing the specific SID model. The current engine is preserved. */ old_engine = (*sid_model >> 8); old_sid_model = (*sid_model & 0xff); new_sid_model = scpu64models[model].sid; old_type = is_new_sid(old_sid_model); new_type = is_new_sid(new_sid_model); if (old_type != new_type) { *sid_model = (old_engine << 8) | new_sid_model; } } /* get details for model */ void c64model_set_details(c64model_details_t *details, int model) { scpu64model_set_temp(model, &details->vicii_model, &details->sid_model, &details->glue_logic, &details->cia1_model, &details->cia2_model, &details->iecreset, details->chargen); } void c64model_set(int model) { int old_model; int old_engine; int old_sid_model; int old_type; int new_sid_model; int new_type; int pf; old_model = c64model_get(); if ((model == old_model) || (model == C64MODEL_UNKNOWN)) { return; } resources_set_int("VICIIModel", scpu64models[model].vicii); /* Determine the power net frequency for this model. It will be 60Hz in all cases, except for PAL models that get the tick from the power grid */ pf = 60; if (scpu64models[model].ciatick == CIATICK_NET) { switch(scpu64models[model].video) { case MACHINE_SYNC_PAL: case MACHINE_SYNC_PALN: pf = 50; break; default: break; } } resources_set_int("MachinePowerFrequency", pf); resources_set_int("CIA1Model", scpu64models[model].cia); resources_set_int("CIA2Model", scpu64models[model].cia); resources_set_int("GlueLogic", scpu64models[model].glue); resources_set_int("IECReset", scpu64models[model].iecreset); resources_set_string("ChargenName", scpu64models[model].chargenname); /* Only change the SID model if the model changes from 6581 to 8580 or the specific SID type changes if residfp is used. This allows to switch between "pal"/"oldpal" without changing the specific SID model. The current engine is preserved. */ resources_get_int("SidEngine", &old_engine); resources_get_int("SidModel", &old_sid_model); new_sid_model = scpu64models[model].sid; old_type = is_new_sid(old_sid_model); new_type = is_new_sid(new_sid_model); if (old_type != new_type) { sid_set_engine_model(old_engine, new_sid_model); } }