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Apply mirrors and global masks at address map detokenizing time rather

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than later. Also added disabled code to detect address maps with
overlapping regions for future analysis.
This commit is contained in:
Aaron Giles 2009-12-10 15:32:44 +00:00
parent ab171be6cd
commit 8ba04b825a
3 changed files with 40 additions and 7 deletions
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16
src/emu/memory.c
View File

@ -2293,6 +2293,7 @@ static void memory_exit(running_machine *machine)
static void map_detokenize(memory_private *memdata, address_map *map, const game_driver *driver, const char *devtag, const addrmap_token *tokens)
{
address_map_entry **firstentryptr;
address_map_entry **entryptr;
address_map_entry *entry;
address_map tmap = {0};
@ -2315,6 +2316,7 @@ static void map_detokenize(memory_private *memdata, address_map *map, const game
/* find the end of the list */
for (entryptr = &map->entrylist; *entryptr != NULL; entryptr = &(*entryptr)->next) ;
firstentryptr = entryptr;
entry = NULL;
/* loop over tokens until we hit the end */
@ -2367,6 +2369,11 @@ static void map_detokenize(memory_private *memdata, address_map *map, const game
check_entry_field(addrmirror);
TOKEN_UNGET_UINT32(tokens);
TOKEN_GET_UINT64_UNPACK2(tokens, entrytype, 8, entry->addrmirror, 32);
if (entry->addrmirror != 0)
{
entry->addrstart &= ~entry->addrmirror;
entry->addrend &= ~entry->addrmirror;
}
break;
case ADDRMAP_TOKEN_READ:
@ -2489,6 +2496,15 @@ static void map_detokenize(memory_private *memdata, address_map *map, const game
break;
}
}
/* post-process to apply the global mask */
if (map->globalmask != 0)
for (entry = map->entrylist; entry != NULL; entry = entry->next)
{
entry->addrstart &= map->globalmask;
entry->addrend &= map->globalmask;
entry->addrmask &= map->globalmask;
}
}

19
src/emu/validity.c
View File

@ -23,7 +23,8 @@
DEBUGGING
***************************************************************************/
#define REPORT_TIMES (0)
#define REPORT_TIMES (0)
#define DETECT_OVERLAPPING_MEMORY (0)
@ -1253,6 +1254,7 @@ static int validate_devices(int drivnum, const machine_config *config, const inp
for (device = device_list_first(&config->devicelist, DEVICE_TYPE_WILDCARD); device != NULL; device = device_list_next(device, DEVICE_TYPE_WILDCARD))
{
device_validity_check_func validity_check = (device_validity_check_func) device_get_info_fct(device, DEVINFO_FCT_VALIDITY_CHECK);
int detected_overlap = DETECT_OVERLAPPING_MEMORY ? FALSE : TRUE;
const device_config *scandevice;
int spacenum;
@ -1309,6 +1311,21 @@ static int validate_devices(int drivnum, const machine_config *config, const inp
{
UINT32 bytestart = SPACE_SHIFT(entry->addrstart);
UINT32 byteend = SPACE_SHIFT_END(entry->addrend);
/* look for overlapping entries */
if (!detected_overlap)
{
address_map_entry *scan;
for (scan = map->entrylist; scan != entry; scan = scan->next)
if (entry->addrstart <= scan->addrend && entry->addrend >= scan->addrstart &&
((entry->read.type != AMH_NONE && scan->read.type != AMH_NONE) ||
(entry->write.type != AMH_NONE && scan->write.type != AMH_NONE)))
{
mame_printf_warning("%s: %s '%s' %s space has overlapping memory (%X-%X,%d,%d) vs (%X-%X,%d,%d)\n", driver->source_file, driver->name, device->tag, address_space_names[spacenum], entry->addrstart, entry->addrend, entry->read.type, entry->write.type, scan->addrstart, scan->addrend, scan->read.type, scan->write.type);
detected_overlap = TRUE;
break;
}
}
/* look for inverted start/end pairs */
if (byteend < bytestart)

12
src/mame/drivers/punchout.c
View File

@ -340,10 +340,10 @@ static ADDRESS_MAP_START( punchout_map, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0xbfff) AM_ROM
AM_RANGE(0xc000, 0xc3ff) AM_RAM AM_BASE_SIZE_GENERIC(nvram)
AM_RANGE(0xd000, 0xd7ff) AM_RAM
AM_RANGE(0xdff0, 0xdff7) AM_RAM AM_BASE(&punchout_spr1_ctrlram)
AM_RANGE(0xdff8, 0xdffc) AM_RAM AM_BASE(&punchout_spr2_ctrlram)
AM_RANGE(0xdffd, 0xdffd) AM_RAM AM_BASE(&punchout_palettebank)
AM_RANGE(0xd800, 0xdfff) AM_RAM_WRITE(punchout_bg_top_videoram_w) AM_BASE(&punchout_bg_top_videoram)
AM_RANGE(0xdff0, 0xdff7) AM_BASE(&punchout_spr1_ctrlram)
AM_RANGE(0xdff8, 0xdffc) AM_BASE(&punchout_spr2_ctrlram)
AM_RANGE(0xdffd, 0xdffd) AM_BASE(&punchout_palettebank)
AM_RANGE(0xe000, 0xe7ff) AM_RAM_WRITE(punchout_spr1_videoram_w) AM_BASE(&punchout_spr1_videoram)
AM_RANGE(0xe800, 0xefff) AM_RAM_WRITE(punchout_spr2_videoram_w) AM_BASE(&punchout_spr2_videoram)
AM_RANGE(0xf000, 0xffff) AM_RAM_WRITE(punchout_bg_bot_videoram_w) AM_BASE(&punchout_bg_bot_videoram) // also contains scroll RAM
@ -354,10 +354,10 @@ static ADDRESS_MAP_START( armwrest_map, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0xbfff) AM_ROM
AM_RANGE(0xc000, 0xc3ff) AM_RAM AM_BASE_SIZE_GENERIC(nvram)
AM_RANGE(0xd000, 0xd7ff) AM_RAM
AM_RANGE(0xdff0, 0xdff7) AM_RAM AM_BASE(&punchout_spr1_ctrlram)
AM_RANGE(0xdff8, 0xdffc) AM_RAM AM_BASE(&punchout_spr2_ctrlram)
AM_RANGE(0xdffd, 0xdffd) AM_RAM AM_BASE(&punchout_palettebank)
AM_RANGE(0xd800, 0xdfff) AM_RAM_WRITE(armwrest_fg_videoram_w) AM_BASE(&armwrest_fg_videoram)
AM_RANGE(0xdff0, 0xdff7) AM_BASE(&punchout_spr1_ctrlram)
AM_RANGE(0xdff8, 0xdffc) AM_BASE(&punchout_spr2_ctrlram)
AM_RANGE(0xdffd, 0xdffd) AM_BASE(&punchout_palettebank)
AM_RANGE(0xe000, 0xe7ff) AM_RAM_WRITE(punchout_spr1_videoram_w) AM_BASE(&punchout_spr1_videoram)
AM_RANGE(0xe800, 0xefff) AM_RAM_WRITE(punchout_spr2_videoram_w) AM_BASE(&punchout_spr2_videoram)
AM_RANGE(0xf000, 0xf7ff) AM_RAM_WRITE(punchout_bg_bot_videoram_w) AM_BASE(&punchout_bg_bot_videoram)