From: notaz Date: Thu, 27 Aug 2009 21:44:52 +0000 (+0000) Subject: more sms wip, better ROM detect, line callback change X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=86c1049d1fba4c8752fd08c6bc848c3318b91eac;p=libpicofe.git more sms wip, better ROM detect, line callback change git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@762 be3aeb3a-fb24-0410-a615-afba39da0efa --- diff --git a/common/emu.c b/common/emu.c index 1cecc39..aca54be 100644 --- a/common/emu.c +++ b/common/emu.c @@ -245,8 +245,11 @@ static int emu_cd_check(int *pregion, const char *fname_in) static int detect_media(const char *fname) { static const short sms_offsets[] = { 0x7ff0, 0x3ff0, 0x1ff0 }; + static const char *sms_exts[] = { "sms", "gg", "sg" }; + static const char *md_exts[] = { "gen", "bin", "smd" }; + char buff0[32], buff[32]; + unsigned short *d16; pm_file *pmf; - char buff[32]; char ext[5]; int i; @@ -264,34 +267,69 @@ static int detect_media(const char *fname) if (pmf == NULL) return PM_BAD; - if (pm_read(buff, 32, pmf) != 32) { + if (pm_read(buff0, 32, pmf) != 32) { pm_close(pmf); return PM_BAD; } - if (strncasecmp("SEGADISCSYSTEM", buff + 0x00, 14) == 0 || - strncasecmp("SEGADISCSYSTEM", buff + 0x10, 14) == 0) { + if (strncasecmp("SEGADISCSYSTEM", buff0 + 0x00, 14) == 0 || + strncasecmp("SEGADISCSYSTEM", buff0 + 0x10, 14) == 0) { pm_close(pmf); return PM_CD; } + /* check for SMD evil */ + if (pmf->size >= 0x4200 && (pmf->size & 0x3fff) == 0x200) { + if (pm_seek(pmf, sms_offsets[0] + 0x200, SEEK_SET) == sms_offsets[0] + 0x200 && + pm_read(buff, 16, pmf) == 16 && + strncmp("TMR SEGA", buff, 8) == 0) + goto looks_like_sms; + + /* could parse further but don't bother */ + goto extension_check; + } + + /* MD header? Act as TMSS BIOS here */ + if (pm_seek(pmf, 0x100, SEEK_SET) == 0x100 && pm_read(buff, 16, pmf) == 16) { + if (strncmp(buff, "SEGA", 4) == 0 || strncmp(buff, " SEG", 4) == 0) + goto looks_like_md; + } + for (i = 0; i < array_size(sms_offsets); i++) { if (pm_seek(pmf, sms_offsets[i], SEEK_SET) != sms_offsets[i]) - goto not_mark3; /* actually it could be but can't be detected */ + continue; if (pm_read(buff, 16, pmf) != 16) - goto not_mark3; + continue; - if (strncasecmp("TMR SEGA", buff, 8) == 0) { - pm_close(pmf); - return PM_MARK3; - } + if (strncmp("TMR SEGA", buff, 8) == 0) + goto looks_like_sms; + } + +extension_check: + /* probably some headerless thing. Maybe check the extension after all. */ + for (i = 0; i < array_size(md_exts); i++) + if (strcasecmp(pmf->ext, md_exts[i]) == 0) + goto looks_like_md; + + for (i = 0; i < array_size(sms_exts); i++) + if (strcasecmp(pmf->ext, sms_exts[i]) == 0) + goto looks_like_sms; + + /* If everything else fails, make a guess on the reset vector */ + d16 = (unsigned short *)(buff0 + 4); + if ((((d16[0] << 16) | d16[1]) & 0xffffff) >= pmf->size) { + lprintf("bad MD reset vector, assuming SMS\n"); + goto looks_like_sms; } -not_mark3: +looks_like_md: pm_close(pmf); - /* the main emu function is to emulate MD, so assume MD */ return PM_MD_CART; + +looks_like_sms: + pm_close(pmf); + return PM_MARK3; } static int extract_text(char *dest, const unsigned char *src, int len, int swab) @@ -450,6 +488,7 @@ int emu_reload_rom(char *rom_fname) shutdown_MCD(); PicoPatchUnload(); + PicoAHW = 0; if (media_type == PM_CD) { diff --git a/common/menu.c b/common/menu.c index dff1b39..08117df 100644 --- a/common/menu.c +++ b/common/menu.c @@ -1803,7 +1803,7 @@ static void debug_menu_loop(void) { case 0: if (inp & PBTN_MOK) - SekStepM68k(); + PDebugCPUStep(); if (inp & PBTN_MA3) { while (inp & PBTN_MA3) inp = in_menu_wait_any(-1); diff --git a/common/revision.mak b/common/revision.mak new file mode 100644 index 0000000..03093e3 --- /dev/null +++ b/common/revision.mak @@ -0,0 +1,8 @@ +platform/common/menu.o : revision.h + +revision.h: FORCE + @echo "#define REVISION \"`svn info -r HEAD | grep Revision | cut -c 11-`\"" > /tmp/r.tmp + @diff -q $@ /tmp/r.tmp > /dev/null 2>&1 || mv -f /tmp/r.tmp $@ + +FORCE: + diff --git a/gp2x/Makefile b/gp2x/Makefile index ac79354..92e5d97 100644 --- a/gp2x/Makefile +++ b/gp2x/Makefile @@ -65,7 +65,7 @@ ifeq "$(amalgamate)" "1" OBJS += ../../picoAll.o else OBJS += pico/area.o pico/cart.o pico/memory.o pico/misc.o pico/pico.o pico/sek.o pico/z80if.o \ - pico/videoport.o pico/draw2.o pico/draw.o pico/patch.o pico/debug.o + pico/videoport.o pico/draw2.o pico/draw.o pico/mode4.o pico/sms.o pico/patch.o pico/debug.o # Pico - CD OBJS += pico/cd/pico.o pico/cd/memory.o pico/cd/sek.o pico/cd/LC89510.o \ pico/cd/cd_sys.o pico/cd/cd_file.o pico/cd/cue.o pico/cd/gfx_cd.o \ @@ -120,12 +120,7 @@ DIRS = platform platform/gp2x platform/linux platform/common pico pico/cd pico/p all: mkdirs PicoDrive include ../common/common_arm.mak - -platform/common/menu.o : revision.h - -revision.h: - @echo "#define REVISION \"`svn info | grep Revision | cut -c 11-`\"" > /tmp/r.tmp - @diff -q $@ /tmp/r.tmp > /dev/null 2>&1 || mv -f /tmp/r.tmp $@ +include ../common/revision.mak # partial linking helps profiled builds due to section merging PicoDrive.o : $(OBJS) ../common/helix/$(CROSS)helix-mp3.a diff --git a/gp2x/emu.c b/gp2x/emu.c index 92e5b74..dd4b686 100644 --- a/gp2x/emu.c +++ b/gp2x/emu.c @@ -220,7 +220,6 @@ static void draw_pico_ptr(void) static int EmuScanBegin16(unsigned int num) { - if (!(Pico.video.reg[1]&8)) num += 8; DrawLineDest = (unsigned short *) g_screen_ptr + g_screen_width * num; return 0; @@ -228,7 +227,6 @@ static int EmuScanBegin16(unsigned int num) static int EmuScanBegin8(unsigned int num) { - if (!(Pico.video.reg[1]&8)) num += 8; DrawLineDest = (unsigned char *) g_screen_ptr + g_screen_width * num; return 0; @@ -247,8 +245,6 @@ static int EmuScanEnd16_rot(unsigned int num) { if ((num & 3) != 3) return 0; - if (!(Pico.video.reg[1] & 8)) - num += 8; rotated_blit16(g_screen_ptr, rot_buff, num + 1, !(Pico.video.reg[12] & 1) && !(PicoOpt & POPT_EN_SOFTSCALE)); return 0; @@ -264,8 +260,6 @@ static int EmuScanEnd8_rot(unsigned int num) { if ((num & 3) != 3) return 0; - if (!(Pico.video.reg[1] & 8)) - num += 8; rotated_blit8(g_screen_ptr, rot_buff, num + 1, !(Pico.video.reg[12] & 1)); return 0; @@ -439,7 +433,6 @@ static void vidResetMode(void) } else if (currentConfig.EmuOpt & EOPT_16BPP) { PicoDrawSetColorFormat(1); - PicoDrawSetColorFormatMode4(1); if (currentConfig.EmuOpt & EOPT_WIZ_TEAR_FIX) { gp2x_video_changemode(-16); PicoScanBegin = EmuScanBegin16_rot; diff --git a/linux/Makefile b/linux/Makefile index be932ed..033d3bd 100644 --- a/linux/Makefile +++ b/linux/Makefile @@ -97,16 +97,13 @@ PicoDrive : $(OBJS) ../common/helix/helix_mp3_x86.a $(CC) $(CFLAGS) $^ $(LDFLAGS) -lm -lpng -Wl,-Map=PicoDrive.map -o $@ mkdirs: - mkdir -p $(DIRS) + @mkdir -p $(DIRS) + +include ../common/revision.mak pico/carthw/svp/compiler.o : ../../pico/carthw/svp/gen_arm.c pico/pico.o pico/cd/pico.o : ../../pico/pico_cmn.c ../../pico/pico_int.h pico/memory.o pico/cd/memory.o : ../../pico/memory_cmn.c ../../pico/pico_int.h -platform/common/menu.o : revision.h - -revision.h: - @echo "#define REVISION \"`svn info | grep Revision | cut -c 11-`\"" > /tmp/r.tmp - @diff -q $@ /tmp/r.tmp > /dev/null 2>&1 || mv -f /tmp/r.tmp $@ ../../cpu/musashi/m68kops.c : @make -C ../../cpu/musashi diff --git a/pandora/emu.c b/pandora/emu.c index a9a2119..3fbda4a 100644 --- a/pandora/emu.c +++ b/pandora/emu.c @@ -186,7 +186,6 @@ static void draw_pico_ptr(void) static int EmuScanBegin16(unsigned int num) { - if (!(Pico.video.reg[1]&8)) num += 8; DrawLineDest = (unsigned short *)g_screen_ptr + num*800 + 800/2 - 320/2; //int w = (Pico.video.reg[12]&1) ? 320 : 256; //DrawLineDest = (unsigned short *)g_screen_ptr + num*w; @@ -204,7 +203,6 @@ static int EmuScanEnd16(unsigned int num) int sh = Pico.video.reg[0xC]&8; int len, mask = 0xff; - if (!(Pico.video.reg[1]&8)) num += 8; pd=(unsigned short *)g_screen_ptr + num*800*2 + 800/2 - 320*2/2; if (Pico.m.dirtyPal) diff --git a/psp/emu.c b/psp/emu.c index e0e1ca1..5eca789 100644 --- a/psp/emu.c +++ b/psp/emu.c @@ -261,8 +261,6 @@ static void EmuScanPrepare(void) static int EmuScanSlowBegin(unsigned int num) { - if (!(Pico.video.reg[1]&8)) num += 8; - if (!dynamic_palette) HighCol = (unsigned char *)VRAM_CACHED_STUFF + num * 512 + 8; @@ -271,8 +269,6 @@ static int EmuScanSlowBegin(unsigned int num) static int EmuScanSlowEnd(unsigned int num) { - if (!(Pico.video.reg[1]&8)) num += 8; - if (Pico.m.dirtyPal) { if (!dynamic_palette) { do_slowmode_lines(num);