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misoyume_upper.spin2
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misoyume_upper.spin2
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'' MisoYume - Souper NES emulator
'' [beta version]
BETAVER = 06
#include "commondef.spin2"
#include "config.spin2"
CON
MAX_PATH = 255
DIRENT_MAX = 4000
EXRAM_MAX = 8*1024*1024
HEAPSIZE = 1024*8
VRAM_BASE = $1_0000
RKRAM_BASE = $2_0000
SPRAM_BASE = $4_0000
NVRAM_BASE = $5_0000
PPUREGS = $40
MENUKEY_UP = %0000_0001
MENUKEY_DOWN = %0000_0010
MENUKEY_LEFT = %0000_0100
MENUKEY_RIGHT = %0000_1000
MENUKEYS_DIRECTIONS = %1111
MENUKEY_CONFIRM = %0001_0000
MENUKEY_BACK = %0010_0000
MENUKEY_PGUP = %0100_0000
MENUKEY_PGDOWN = %1000_0000
ATTR_TRAN = 0
ATTR_BLACK = 256
ATTR_SELECT = 256 + 1<<10
ATTR_DIAG = 256 + 2<<10
OBJ
video: "MegaVGA_ohmyshit"
usb : "usbnew" | ACTIVITY_LED = -1, ERROR_LED = -1, USB_BASE_PIN = USB0_BASEPIN, USB_ENABLE_OFFSET = ENABLE_PIN, USB_DMINUS_OFFSET = DM_PIN, ...
OVERLAP_MEMORY = true, ...
EMUPAD_MAX_PLAYER = 8, EMUPAD_BUILTIN_RULES = false, ...
EMUPAD_TYPE_KBD = 1, EMUPAD_TYPE_PAD = 1, ...
EMUPAD_UP_BIT = 4,EMUPAD_DOWN_BIT = 5,EMUPAD_LEFT_BIT = 6,EMUPAD_RIGHT_BIT = 7, ...
EMUPAD_BT0_BIT = 9, EMUPAD_BT1_BIT = 8, EMUPAD_BT2_BIT = 0, EMUPAD_BT3_BIT = 1, ...
EMUPAD_BT4_BIT = 10, EMUPAD_BT5_BIT = 11, EMUPAD_BT6_BIT = -1, EMUPAD_BT7_BIT = -1, ...
EMUPAD_BT8_BIT = 2, EMUPAD_BT9_BIT = 3
padmap: "padmap_parser"
c : "libc"
a : "fsadapter.c"
#ifdef USE_PSRAM4
exmem : "psram4drv-dualCE.spin2"
#endif
#ifdef USE_PSRAM8
exmem : "psram8drv.spin2"
#endif
#ifdef USE_PSRAM16
exmem : "psram16drv.spin2"
#endif
#ifdef USE_HYPER
exmem : "hyperdrv.spin2"
#endif
VAR
long exmem_mailbox[8*3]
long exmem_struct
long romfile,romsize
long srmfile,savesize
long selection
byte romheader,rommapper
byte ppr_cog,ppc_cog,ppm_cog,cpu_cog,exmem_cog,spc_cog
byte got_parameter,sram_is_nvram
byte romheader_buffer[80]
alignl
long repeatkey,repeatnext
alignl
byte curdir[MAX_PATH+1],tmppath[MAX_PATH+1]
PUB main() | tmp, i, j, selfile
menu_ppu_init()
msgbox_simple(@"oomf")
' setup video driver
video.start($F8,$80000,long[$20],VIDEO_MODE,VGA_BASEPIN,VGA_VSYNC,VIDEO_SUBMODE)
' MEGA HACK: MODE POINTER is $80000
ppr_cog := coginit(COGEXEC_NEW,long[$24],0)
ppc_cog := coginit(HUBEXEC_NEW,long[$28],0)
ppm_cog := coginit(COGEXEC_NEW,long[$2C],0)
spc_cog := coginit(HUBEXEC_NEW,long[$3C],$FFC0)
_mount(@"/sd",c._vfs_open_sdcardx(SDCARD_CLK,SDCARD_SELECT,SDCARD_DI,SDCARD_DO))
#ifdef INPUT_USE_USB
usb.set_emupad_ptr($100)
tmp := c.fopen(@"/sd/PADMAP.TXT",@"r")
if tmp
padmap.parse(usb.get_emupad_rule_buffer(),usb.EMUPAD_MAX_RULES,@c.fgetc,tmp,@"megayume")
c.fclose(tmp)
usb.start()
waitms(500) ' This is here because oomfies
#endif
'print(0,0,@"A",0)
'print(31,0,@"B",0)
'print(0,31,@"C",0)
'print(31,31,@"D",0)
word[VRAM_BASE][(3<<5)+2] := 512
word[VRAM_BASE][(3<<5)+3] := 513
word[VRAM_BASE][(3<<5)+4] := 514
word[VRAM_BASE][(3<<5)+5] := 515
#ifndef DIRECT_BOOT
if USE_ARGV && long[$FC000] == %"ARGv" && word[$FC004] <> 0
got_parameter := true
long[$FC000] := 0 ' Destroy signature
else
'do_opening()
#endif
if a.get_type_for_path(@"/sd/MISOYUME")==1
c.strncpy(@curdir,@"/sd/MISOYUME/",MAX_PATH)
else
c.strncpy(@curdir,@"/sd/",MAX_PATH)
repeat
repeat
#ifdef DIRECT_BOOT
c.strncpy(@tmppath,@DIRECT_BOOT,MAX_PATH)
#else
if got_parameter
c.strncpy(@tmppath,$FC004,MAX_PATH)
got_parameter := false
elseifnot do_filechooser()
next
#endif
'msgbox_simple(@tmppath)
'waitkey(MENUKEY_CONFIRM)
case a.get_type_for_path(@tmppath)
0:
msgbox_simple(@"Path not found?")
waitkey(MENUKEY_CONFIRM)
next
1:
c.strncpy(@curdir,@tmppath,MAX_PATH)
c.strncat(@curdir,@"/",MAX_PATH)
selection := 0
next ' go for another round
2:
'msgbox_simple(@"ROM ok?")
'waitkey(MENUKEY_CONFIRM)
if open_romfile(@tmppath) < 0
msgbox_simple(@"open error")
waitkey(MENUKEY_CONFIRM)
next
detect_rom()
exmem_start()
do_load_rom()
byte[$180] := encod(romsize-1) ' Set rom size limit for lower code
byte[$181] := encod(savesize-1)
byte[$182] := rommapper
' remove extension from tmppath
tmp := strsize(@tmppath)
repeat while --tmp >= 0
case tmppath[tmp]
".":
tmppath[tmp] := 0
quit
"/": quit
' add SRM extnesion
c.strncat(@tmppath,@".SRM",MAX_PATH)
init_sram(@tmppath)
quit
run_emulator()
if srmfile
flush_sram()
c.fclose(srmfile\0)
menu_ppu_init()
PRI run_emulator() | tmp,did_reset,did_pause,should_pause,inband_time,inband_which,inband_trig
exmem_stop()
waitms(500)
bytefill(RKRAM_BASE,$FF,$20000) ' Fill 128K RAM with $FF
bytefill(VRAM_BASE,$00,$10000) ' Fill 64K VRAM with $1337
bytefill(SPRAM_BASE,$00,$10000)
byte[$D4] := 0
coginit(HUBEXEC+spc_cog,long[$3C],$FFC0) ' force reset SPCcog
cpu_cog := coginit(HUBEXEC_NEW,long[$1C],0)
repeat
if INBAND_RESET
tmp := long[$100]
if tmp.[usb.EMUPAD_UP_BIT] and tmp.[usb.EMUPAD_BT9_BIT] and 0 ' Up+Start (Reset) DISABLED FOR NOW
if inband_which <> 1
inband_which:=1
inband_time := getct()
#ifndef DIRECT_BOOT
elseif tmp.[usb.EMUPAD_DOWN_BIT] and tmp.[usb.EMUPAD_BT9_BIT] ' Down+Start (Quit)
if inband_which <> 2
inband_which:=2
inband_time := getct()
#endif
else
inband_which:=0
if inband_which<>0 and (getct()-inband_time) > (3*clkfreq)
inband_trig := inband_which\0
else
inband_trig := 0
tmp:=((usb.keystate(usb.KEY_LCTRL)||usb.keystate(usb.KEY_RCTRL)) and usb.keystate(usb.KEY_R)) or inband_trig == 1
if tmp and not did_reset
byte[$D4] := 255
'cogatn(decod cpu_cog)
did_reset:=tmp
tmp := usb.keystate(usb.KEY_PAUSE)
if tmp and not did_pause
should_pause := true
did_pause:=tmp
if should_pause and not did_reset
byte[$D4] ^= 1
'cogatn(decod cpu_cog)
should_pause := false
if ((usb.keystate(usb.KEY_LCTRL)||usb.keystate(usb.KEY_RCTRL)) and usb.keystate(usb.KEY_Esc)) or inband_trig == 2
quit
' Autosave SRAM if last write was 3 seconds ago
if srmfile and long[$D0] and (getct() - long[$D0]) >= clkfreq*3
long[$D0] := 0 ' clear first, so if we get another write while we're busy, it will still be autosaved later
flush_sram()
cogstop(cpu_cog)
coginit(HUBEXEC+spc_cog,long[$3C],$FFC0) ' force reset SPCcog AGAIN
CON
INFO_X = 17
INFO_Y = 6
INFO_HEIGHT = 20
DIRLIST_X = 1
DIRLIST_Y = 5
DIRLIST_HEIGHT = 21
PRI do_filechooser() | keys,x,y,tmp,gotfiles,tmp2,attr,position,dirty
settiles($0000,0,31,27,27," ")
print(1,27,@"Accessing...",256)
gotfiles := scandir()
if gotfiles < 0
msgbox_simple(@"Directory error!!!")
waitkey(MENUKEY_CONFIRM)
return
if c.strncmp(@curdir,@"/",MAX_PATH) ' don't add updir into root dir
fileenter(@"<go up>",0,gotfiles++)
sortFiles(gotfiles)
screen_reset()
'longfill(VRAM_BASE+$2800,0,32*8)
' TODO: current directory renderer
'draw_shiftjis_string(@curdir,VRAM_BASE+$2800,1,2,32*2)
'show_shiftjis_string($2800/32,32,DIRLIST_X,DIRLIST_Y-1,$0000)
if selection +>= gotfiles
selection := 0
position := 0
else
position := (selection - 2) <# (gotfiles - DIRLIST_HEIGHT) #> 0
dirty := true
repeatkey := 0
repeat while poll_menukeys() & !MENUKEYS_DIRECTIONS
update_anim()
repeat
if dirty\false
settiles($0000,14,31,4,4," "+ATTR_TRAN)
'longfill(VRAM_BASE+$3000,$1111_1111,INFO_HEIGHT*16*8)
repeat y from 0 to INFO_HEIGHT-1
'show_shiftjis_string($3000/32+y*16 + A<<11,16,INFO_X,INFO_Y+y,$0000)
settiles($0000,INFO_X,30,y+INFO_Y,y+INFO_Y," "+ATTR_BLACK)
if selection <= position
position := (selection-1) #> 0
if selection >= position+DIRLIST_HEIGHT-1
position := (selection-DIRLIST_HEIGHT+2) #> 0 <# gotfiles-DIRLIST_HEIGHT
repeat y from DIRLIST_Y to DIRLIST_Y+DIRLIST_HEIGHT-1
tmp := y-DIRLIST_Y+position
attr := tmp == selection ? ATTR_SELECT : ATTR_BLACK
if tmp < gotfiles
tmp2:=RKRAM_BASE+tmp*12
settile($0000,DIRLIST_X,y," "+attr)
settile($0000,DIRLIST_X+1,y,byte[tmp2++]+256+attr)
repeat x from 2 to 9
settile($0000,DIRLIST_X+x,y,byte[tmp2++]+attr)
settile($0000,DIRLIST_X+10,y,(byte[tmp2] <> " "?".":" ")+attr)
repeat x from 11 to 13
settile($0000,DIRLIST_X+x,y,byte[tmp2++]+attr)
settile($0000,DIRLIST_X+14,y," "+attr)
else
settiles($0000,DIRLIST_X,DIRLIST_X+14,y,y," "+ATTR_BLACK)
ifnot gotfiles
' Does this case ever actually happen anymore?
putstring(@"No Files...",18,4,$0000,ATTR_TRAN)
else
case byte[RKRAM_BASE+12*selection]
0:putstring(@"Go up",INFO_X,4,$0000,ATTR_TRAN)
1:putstring(@"Folder",INFO_X,4,$0000,ATTR_TRAN)
2:
putstring(@"ROM info:",INFO_X,4,$0000,ATTR_TRAN)
c.strncpy(@tmppath,@curdir,MAX_PATH-12)
filegetname(@tmppath+strsize(@tmppath),selection)
if open_romfile(@tmppath) < 0
'draw_shiftjis_string(@"ＯＰＥＮ ＥＲＲＯＲ？？？",VRAM_BASE+$3000+0*16*32,1,2,32)
else
'rom_read_block(RKRAM_BASE+$C000)
detect_rom()
c.sprintf(@tmppath,@"Size: %d",romsize)
putstring(@tmppath,INFO_X,INFO_Y+0,$0000,ATTR_BLACK)
putstring(romheader ? @"Has Header" : @"No Header",INFO_X,INFO_Y+1,$0000,ATTR_BLACK)
case rommapper
MAPPER_LOROM, MAPPER_LOROM_NVRAM:
c.strncpy(@tmppath,@"LoROM",MAX_PATH)
MAPPER_HIROM, MAPPER_HIROM_NVRAM:
c.strncpy(@tmppath,@"HiROM",MAX_PATH)
MAPPER_EXHIROM, MAPPER_EXHIROM_NVRAM:
c.strncpy(@tmppath,@"ExHiROM",MAX_PATH)
other:
c.strncpy(@tmppath,@"???",MAX_PATH)
case rommapper
MAPPER_LOROM_NVRAM,MAPPER_HIROM_NVRAM,MAPPER_EXHIROM_NVRAM:
c.strncat(@tmppath,sram_is_nvram?@"+NVRAM":@"+RAM",MAX_PATH)
putstring(@tmppath,INFO_X,INFO_Y+2,$0000,ATTR_BLACK)
putstring(@"Title:",INFO_X,INFO_Y+3,$0000,ATTR_BLACK)
bytemove(@tmppath,@romheader_buffer[$10],14)
tmppath[14] := 0
putstring(@tmppath,INFO_X,INFO_Y+4,$0000,ATTR_BLACK)
bytemove(@tmppath,@romheader_buffer[$10+14],7)
tmppath[7] := 0
putstring(@tmppath,INFO_X,INFO_Y+5,$0000,ATTR_BLACK)
'settile($0000,0,0,"0"+ATTR_PAL2<<11)
keys := poll_menukeys()
if keys & MENUKEY_BACK
repeat while poll_menukeys() & MENUKEY_BACK
update_anim()
tmppath[0] := 0
return false
elseif keys & MENUKEY_CONFIRM and gotfiles
repeat while poll_menukeys() & MENUKEY_CONFIRM
update_anim()
c.strncpy(@tmppath,@curdir,MAX_PATH-12)
if byte[RKRAM_BASE+selection*12]==0 ' got directory up?
tmp := @tmppath+strsize(@tmppath)
tmp2 := 2
repeat while tmp >= @tmppath and tmp2
if byte[tmp] == "/"
tmp2--
byte[tmp--] := 0
else
filegetname(@tmppath+strsize(@tmppath),selection)
return true
else
update_anim()
tmp := selection
selection := handle_menu_move(keys,selection,gotfiles-1,DIRLIST_HEIGHT)
if tmp <> selection
dirty := 1
PRI handle_menu_move(keys,current,max,pagelen) : r | tmp
tmp := 0
if ones(keys) <> 1
repeatkey := 0
return current
if repeatkey <> keys
repeatkey := keys
repeatnext := clkfreq+/2 + getct()
tmp := 1
elseif (getct()-repeatnext) >= 0
tmp := 1
repeatnext := clkfreq+/10 + getct()
ifnot tmp
return current
case encod keys
encod MENUKEY_UP:
return (current-1) #> 0
encod MENUKEY_DOWN:
return (current+1) <# max
encod MENUKEY_PGUP:
return (current-pagelen) #> 0
encod MENUKEY_PGDOWN:
return (current+pagelen) <# max
other:
return current
PRI scandir() : got | dir,tmp,type
c.strncpy(@tmppath,@curdir,MAX_PATH)
'if c.strncmp(@curdir,@"/sd/",MAX_PATH) ' if not root, remove slash for opening directory (WTF??)
' tmppath[strsize(@tmppath)-1] := 0
dir := c.opendir(@tmppath)
ifnot dir
return -1
repeat
tmp:= c.readdir(dir)
ifnot tmp
quit
ifnot type := a.get_type_for_dirent(tmp)
next
fileenter(a.get_name_for_dirent(tmp),type,got)
ifnot type == 1 or valid_rom_extension(got)
next
if ++got == DIRENT_MAX
quit
c.closedir(dir)
PRI fileenter(str,type,num) | pt
pt := RKRAM_BASE+12*num
byte[pt++] := type
repeat 8
if byte[str] == 0 || byte[str] == "."
byte[pt++] := " "
else
byte[pt++] := byte[str++]
if byte[str] == "."
str++
repeat 3
if byte[str] == 0
byte[pt++] := " "
else
byte[pt++] := byte[str++]
PRI valid_rom_extension(num) : r
if check_extension(num,"S"+"F"<<8+"C"<<16)
return true
if check_extension(num,"S"+"M"<<8+"C"<<16)
return false
PRI check_extension(num,ext) : r | tmp
tmp := long[RKRAM_BASE+12*num+9]&$FFFFFF
return tmp==ext || tmp==(ext|$202020)
PRI filegetname(dst,num) | pt
pt := RKRAM_BASE+12*num+1
repeat 8
if byte[pt] <> " "
byte[dst++] := byte[pt]
pt++
if byte[pt] <> " "
byte[dst++] := "."
repeat 3
if byte[pt] <> " "
byte[dst++] := byte[pt]
pt++
byte[dst] := 0
PRI sortFiles(length) : i | ip,jp,i2p,zonep,k,realsize,subsize,sizze,temp
'' Sort the Files...
temp := __builtin_alloca(12)
if length < 2 ' no need to sort if < 2 entries
return
'' Non-recursive in-place sorting algorithm
'' As relayed to me by a friendly Discord user
'' (ported to spin and optimized by me)
subsize := 12
length *= 12
repeat while subsize < length
sizze := subsize<<1
repeat i from 0 to length-12 step sizze
jp := (ip:=RKRAM_BASE+i)+subsize
realsize := sizze <# (length-i)
i2p := ip
repeat k from 0 to realsize-12 step 12
if jp => (ip+realsize) or i2p => jp
'pass
elseif compareNames(i2p,jp) =< 0
i2p += 12
else
zonep := jp
repeat
if (zonep+12) == (ip+realsize)
longmove(temp, i2p,3)
longmove(i2p,jp,3)
longmove(jp,jp+12,(zonep-jp)>>2)
longmove(zonep,temp,3)
if jp == zonep
i2p += 12
else
k -= 12
quit
elseif compareNames(zonep+12,i2p) > 0
longmove(temp, i2p,3)
longmove(i2p,jp,3)
longmove(jp,jp+12,(zonep-jp)>>2)
longmove(zonep,temp,3)
if jp == zonep
i2p += 12
else
k -= 12
quit
zonep += 12
subsize := sizze
PRI compareNames(first,second) : result
repeat 12
if result := byte[first++] - byte[second++]
return
return 0
PRI settile(plane,x,y,tile)
word[VRAM_BASE+plane][y*32+x] := tile
PRI settiles(plane,x1,x2,y1,y2,tile) | i
if x2 >= x1 and y2 >= y1
plane += VRAM_BASE
repeat i from y1 to y2
wordfill(plane+(i<<5+x1)<<1,tile,x2-x1+1)
PRI putstring(str,x,y,plane,attr) | c
repeat while c := byte[str++]
word[VRAM_BASE+plane][x+y*32] := c + attr
x := (x+1)&31
PRI print(x,y,str,attr)
putstring(str,x,y,$0000,attr)
CON
MSGBOX_X = 3
MSGBOX_Y = 12
MSGBOX_WIDTH = 26
MSGBOX_HEIGHT = 5
MSGBOX_X2 = MSGBOX_X+MSGBOX_WIDTH-1
MSGBOX_Y2 = MSGBOX_Y+MSGBOX_HEIGHT-1
PRI msgbox_simple(str)
settiles($0000,MSGBOX_X,MSGBOX_X2,MSGBOX_Y,MSGBOX_Y2," "+ATTR_DIAG)
settiles($0000,MSGBOX_X,MSGBOX_X2,MSGBOX_Y-1,MSGBOX_Y-1,$90+ATTR_DIAG)
settiles($0000,MSGBOX_X,MSGBOX_X2,MSGBOX_Y2+1,MSGBOX_Y2+1,$90+ATTR_DIAG)
settiles($0000,MSGBOX_X-1,MSGBOX_X-1,MSGBOX_Y,MSGBOX_Y2,$91+ATTR_DIAG)
settiles($0000,MSGBOX_X2+1,MSGBOX_X2+1,MSGBOX_Y,MSGBOX_Y2,$91+ATTR_DIAG)
settile($0000,MSGBOX_X-1,MSGBOX_Y-1,$9F+ATTR_DIAG)
settile($0000,MSGBOX_X-1,MSGBOX_Y2+1,$9D+ATTR_DIAG)
settile($0000,MSGBOX_X2+1,MSGBOX_Y-1,$9E+ATTR_DIAG)
settile($0000,MSGBOX_X2+1,MSGBOX_Y2+1,$9C+ATTR_DIAG)
putstring(str,MSGBOX_X+1,MSGBOX_Y+1,$0000,ATTR_DIAG)
'repeat
'print(0,27,string(" "),0)
'settiles($0000,0,31,27,27," ")
'print(1,27,str,256)
PRI open_romfile(name) : r
if romfile
c.fclose(romfile)
romfile := c.fopen(name,@"rb")
ifnot romfile
return -1
return 0
PRI detect_rom() | maptype, score_lo, score_hi, score_exhi, tmp, haveram, havebatt
c.fseek(romfile,0,c.SEEK_END)
romsize := c.ftell(romfile)
if romsize & 512
romsize -= 512
romheader := 1
else
romheader := 0
if romsize > $7FFF
c.fseek(romfile,$7FB0+(romheader?512:0),c.SEEK_SET)
c.fread(@romheader_buffer,80,1,romfile)
score_lo := score_header(@romheader_buffer,$20)
if romsize > $FFFF
c.fseek(romfile,$FFB0+(romheader?512:0),c.SEEK_SET)
c.fread(@romheader_buffer,80,1,romfile)
score_hi := score_header(@romheader_buffer,$21)
if romsize > $40FFFF
c.fseek(romfile,$40FFB0+(romheader?512:0),c.SEEK_SET)
c.fread(@romheader_buffer,80,1,romfile)
score_exhi := score_header(@romheader_buffer,$25)
maptype := 0 ' assume LoROM
tmp := score_lo
if score_hi >= tmp
maptype := 1
tmp := score_hi
if score_exhi >= tmp
maptype := 2
tmp := score_exhi
{
print(1,3,lookupz(maptype : @"LoROM", @"HiROM", @"ExHiROM"),0)
tmp := __builtin_alloca(256)
c.sprintf(tmp,@" LoROM score: %d",score_lo)
print(1,5,tmp,0)
c.sprintf(tmp,@" HiROM score: %d",score_hi)
print(1,6,tmp,0)
c.sprintf(tmp,@"ExHiROM score: %d",score_exhi)
print(1,7,tmp,0)
c.sprintf(tmp,@"%08X",lookupz(maptype: $7FB0,$FFB0,$40FFB0)+(romheader?512:0))
print(1,8,tmp,0)
}
' okay, load back actual header
c.fseek(romfile,lookupz(maptype: $7FB0,$FFB0,$40FFB0)+(romheader?512:0),c.SEEK_SET)
c.fread(@romheader_buffer,80,1,romfile)
{
c.sprintf(tmp,@"Map: $%02X Chipset: $%02X",romheader_buffer[$25],romheader_buffer[$26])
print(1,9,tmp,0)
c.sprintf(tmp,@"ROM zx: %2d RAM zx: %2d",encod(romsize-1),romheader_buffer[$28]+9)
print(1,10,tmp,0)
}
haveram := (%0110110 >> (romheader_buffer[$26]&$F)) & 1
havebatt := (%0100100 >> (romheader_buffer[$26]&$F)) & 1
if haveram
savesize := decod(romheader_buffer[$28] + 10)
savesize <#= 32768
else
savesize := 0
sram_is_nvram := haveram && havebatt
{
c.sprintf(tmp,@"savesize: %d",savesize)
print(1,11,tmp,0)
}
' set fine-grained mapper
case maptype
0: ' LoROM
if haveram
rommapper := MAPPER_LOROM_NVRAM
else
rommapper := MAPPER_LOROM
1: ' HiROM
if haveram
rommapper := MAPPER_HIROM_NVRAM
else
rommapper := MAPPER_HIROM
2: ' ExHiROM
if haveram
rommapper := MAPPER_EXHIROM_NVRAM
else
rommapper := MAPPER_EXHIROM
'' Heurestic to discover valid ROM header (and by extension map mode)
'' ptr is to 80 byte ROM header that should show up at $FFB0
PRI score_header(ptr,expected_map) : score | i
score := 1 ' One point for actually existing
' Reset vector points into ROM? (always true)
if word[ptr+$4C] >= $8000 && word[ptr+$4C] < $FFC0
score += 20
' Checksum and compliment match (may not be true for hacks)
if word[ptr+$2C] == (word[ptr+$2E]^$FFFF)
score += 5
' ROM size matches file size
if byte[ptr+$27] == encod(romsize-1)-9
score += 5
' Map mode matches header location
if byte[ptr+$25]&$EF == expected_map
score += 7
' Game title is valid ASCII?
score += 5
repeat i from $10 to $23
ifnot byte[ptr+i] >= " " && byte[ptr+i] <= "~"
score -= 5
quit
PRI do_load_rom() | loadptr, loadsize, mirrorsize, x
msgbox_simple(@"Loading ROM...")
'' TODO verify that this actually works for all mirroring etc
loadptr := 0
loadsize := romsize
c.fseek(romfile,romheader?512:0,c.SEEK_SET)
mirrorsize := decod(encod(loadsize-1)+1)
repeat mirrorsize >> 15
update_bar(loadptr,mirrorsize)
if loadsize <= 0
loadsize := decod(encod(mirrorsize-loadptr))
c.fseek(romfile,loadsize*2 + (romheader?512:0),c.SEEK_SET)
'c.printf(string("seeking %08X",10),loadsize*2 + (romheader?512:0))
c.fread(RKRAM_BASE,32768,1,romfile)
exmem_write(loadptr,RKRAM_BASE,32768,false)
'c.printf(string("%08X %08X",10),loadptr,loadsize)
loadptr += 32768
loadsize -= 32768
update_bar(loadptr,mirrorsize)
PRI update_bar(ptr,mirrorsize) : x
x := (((ptr*23)/mirrorsize)&posx) <# 23
settiles($0000,4,4+x,14,14,514)
settiles($0000,4+x+1,4+23,14,14," "+ATTR_BLACK)
update_anim()
PRI init_sram(srmpath) | open_existing
bytefill(NVRAM_BASE,$FF,$8000)
if srmfile
msgbox_simple(@"srmfile leak?")
waitkey(MENUKEY_CONFIRM)
c.fclose(srmfile\0)
if sram_is_nvram
open_existing := a.exists(srmpath)
if open_existing
srmfile := c.fopen(srmpath,@"r+b")
ifnot srmfile
msgbox_simple(@"Failed to open save file!")
waitkey(MENUKEY_CONFIRM)
else
c.fread(NVRAM_BASE,1,savesize,srmfile)
msgbox_simple(@"Save open OK!")
waitkey(MENUKEY_CONFIRM)
else
srmfile := c.fopen(srmpath,@"w+b")
ifnot srmfile
msgbox_simple(@"Failed to create save file!")
waitkey(MENUKEY_CONFIRM)
else
c.fwrite(NVRAM_BASE,1,savesize,srmfile)
msgbox_simple(@"Save create OK!")
waitkey(MENUKEY_CONFIRM)
PRI flush_sram()
c.fseek(srmfile,0,c.SEEK_SET)
c.fwrite(NVRAM_BASE,1,savesize,srmfile)
c.fflush(srmfile)
PRI screen_reset() | tmp
wordfill(VRAM_BASE,$20,32*32)
tmp := __builtin_alloca(40)
c.sprintf(tmp,@"BETA %02d",BETAVER)
print(1,2,tmp,ATTR_TRAN)
update_anim()
' draw soup bowl
word[VRAM_BASE][1<<5+BOWL_X+0] := $304 + 7<<10
word[VRAM_BASE][1<<5+BOWL_X+1] := $300 + 7<<10
word[VRAM_BASE][1<<5+BOWL_X+2] := $301 + 7<<10
word[VRAM_BASE][1<<5+BOWL_X+3] := $304 + 7<<10 + $4000
word[VRAM_BASE][2<<5+BOWL_X+0] := $305 + 7<<10
word[VRAM_BASE][2<<5+BOWL_X+1] := $302 + 7<<10
word[VRAM_BASE][2<<5+BOWL_X+2] := $303 + 7<<10
word[VRAM_BASE][2<<5+BOWL_X+3] := $305 + 7<<10 + $4000
word[VRAM_BASE][0<<5+BOWL_X+2] := $306 + 7<<10
PRI menu_ppu_init() | tmp,i,j
byte[PPUREGS+$08] := $01 ' BGMODE
byte[PPUREGS+$09] := $00 ' SETINI
byte[PPUREGS+$0A] := $00 ' MOSAIC
word[PPUREGS+$04] := $10_02 ' CGADSUB / CGWSEL
byte[PPUREGS+$06] := $0F ' INIDISP
long[PPUREGS+$18] := $00_01_00_11 ' BG1 on both, sprites only on main
long[PPUREGS+$1C] := $00_00_00_00 ' Nametable bases/sizes
word[PPUREGS+$20] := $1111 ' Tileset bases
word[PPUREGS+$24] := $0000 ' BG1HOFS
word[PPUREGS+$26] := $0000 ' BG1VOFS
long[long[$30]][0] := $484848_00 ' backdrop color
long[PPUREGS+$00] := $484848_00 ' fixed color
byte[PPUREGS+$37] := $03 ' OBJSEL
' init OAM
repeat i from 0 to 127
setsprite(i,384,0,0,0)
' load font
repeat i from 0 to 255
repeat j from 0 to 7
tmp := __builtin_movbyts(testfont.byte[i*8+j] rev 7,%%0000)
word[VRAM_BASE+1*8192+(i+0)*32][j] := tmp
word[VRAM_BASE+1*8192+(i+0)*32][j+8] := tmp
word[VRAM_BASE+1*8192+(i+256)*32][j] := tmp| $FF
word[VRAM_BASE+1*8192+(i+256)*32][j+8] := tmp
' load icons
repeat i from 0 to 3
conv4bpp(VRAM_BASE+1*8192+(i+512)*32,@dirup_icon+i*32)
repeat i from 0 to 7
conv4bpp(VRAM_BASE+1*8192+(i+768)*32,@bowltiles+i*32)
' load sprites
repeat i from 0 to 15
conv4bpp(VRAM_BASE+3*16384+(i+0)*32,@logotiles_row1+i*32)
repeat i from 0 to 15
conv4bpp(VRAM_BASE+3*16384+(i+16)*32,@logotiles_row2+i*32)
long[long[$30]][1] := $000000_00
longmove(@long[long[$30]][2],@mainpal,14)
long[long[$30]][17] := $B068B0_00
longmove(@long[long[$30]][18],@mainpal,14)
long[long[$30]][33] := $383838_00
longmove(@long[long[$30]][34],@mainpal,14)
longmove(@long[long[$30]][129],@logopal1,15)
longmove(@long[long[$30]][113],@logopal2,15)
longmove(@long[long[$30]][145],@logopal2,15)
' A mathable sprite palette
repeat i from 0 to 15
long[long[$30]][192+i] := __builtin_movbyts(i<<3,%%0003)
'long[long[$30]][33] := $F80000_00
'long[long[$30]][65] := $00F800_00
'long[long[$30]][97] := $0000F8_00
screen_reset()
PRI conv4bpp(dst,src) | tmp,j
repeat 8 : j
tmp := __builtin_splitb(long[src][j])
word[dst][j] := tmp
word[dst][j+8] := tmp>>16
PRI setsprite(i,x,y,tile,attr) | tmp
tmp := long[$38]+i*6
byte[tmp++] := x.[8] + (attr.[0]<<1)
byte[tmp++] := 0
byte[tmp++] := tile
byte[tmp++] := attr&$FE | tile.[8]
byte[tmp++] := x
byte[tmp++] := y
CON
LOGO_X = 9*8+4
BOWL_X = 21
PRI update_anim() | x,y,spr,tmp
spr := 0
if last_anim_frame && last_anim_frame == long[$FC]
return
last_anim_frame := long[$FC]
tmp := last_anim_frame
' M
x,y := LOGO_X,8
if tmp.[8..4] == $8
y -= 1
setsprite(spr++,x+0,y+0,$00,$31)
setsprite(spr++,x+16,y+0,$02,$30)
setsprite(spr++,x+16,y+8,$12,$30)
' I
x,y := LOGO_X+18,8
if tmp.[8..4] == $A
y -= 1
setsprite(spr++,x+0,y+0,$03,$30)
setsprite(spr++,x+0,y+8,$13,$30)
' S
x,y := LOGO_X+22,8
if tmp.[8..4] == $C
y -= 1
setsprite(spr++,x+0,y+0,$04,$31)
' O
x,y := LOGO_X+33,8
if tmp.[8..4] == $E
y -= 1
setsprite(spr++,x+0,y+0,$06,$31)
' Y
x,y := LOGO_X+48,8
setsprite(spr++,x+0,y+0,$08,$33)
' U
x,y := LOGO_X+61,8
setsprite(spr++,x+0,y+0,$0A,$33)
' M
x,y := LOGO_X+73,8
setsprite(spr++,x+0,y+0,$0C,$33)
' E
x,y := LOGO_X+87,8
setsprite(spr++,x+0,y+0,$0E,$33)
' steam
x,y := (BOWL_X+1)*8,-1
setsprite(spr++,x+0,y+0,$20,$39)
' animate steam
ifnot last_anim_frame&3
update_steam()
PRI update_steam() | x,y,tmp,steamrow[2],windphase
windphase := qcos(15,last_anim_frame&511,512)
repeat x from 0 to 17
tmp := 64
tmp += qcos(96,last_anim_frame+x*51,811) #> -20
tmp += qcos(96,last_anim_frame+x*13,1000) #> -20
tmp += qsin(96,x,18*2)
tmp <#= 255
steambuffer[x+(17*18)] := ((getrnd()&255)*tmp+255)>>8
if x==0 || x==17
tmp >>= 1
steambuffer[x+(16*18)] := ((getrnd()&255)*tmp+255)>>8
repeat y from 0 to 15
repeat x from 1 to 16
tmp := steambuffer[(x+0)+(y+1)*18]*35
tmp += steambuffer[(x-1)+(y+1)*18]*(21+windphase)
tmp += steambuffer[(x+1)+(y+1)*18]*(21-windphase)
tmp += steambuffer[(x+0)+(y+2)*18]*23
steambuffer[x+y*18] := (tmp>>7)<#255
tmp >>= 6
tmp += steamdither[(x&3)+(y&3)*4]
tmp <#= 255
asm
rolnib steamrow+1,steamrow+0,#7
rolnib steamrow+0,tmp,#1
endasm
steamrow[0] := __builtin_splitb(steamrow[0])
steamrow[1] := __builtin_splitb(steamrow[1])
word[VRAM_BASE+3*16384+(32+(y&8)<<1)*32][y&7] := steamrow[1]
word[VRAM_BASE+3*16384+(32+(y&8)<<1)*32][y&7+8] := steamrow[1]>>8
word[VRAM_BASE+3*16384+(33+(y&8)<<1)*32][y&7] := steamrow[0]
word[VRAM_BASE+3*16384+(33+(y&8)<<1)*32][y&7+8] := steamrow[0]>>8
VAR
long last_anim_frame
byte steambuffer[18*18]