Open File to RAM Centre
Jump to navigation
Jump to search
00011e38: 27bdffe0 addiu r29,r29,0xffe0 00011e3c: afb00018 sw r16,0x0018(r29) 00011e40: 00808021 addu r16,r4,r0 # file open descriptor 00011e44: afbf001c sw r31,0x001c(r29) 00011e48: 8e030004 lw r3,0x0004(r16) # check if a file is currently queued to load 00011e4c: 00000000 nop 00011e50: 2c620007 sltiu r2,r3,0x0007 00011e54: 10400067 beq r2,r0,0x00011ff4 # branch if not valid type for this function? 00011e58: 00031080 sll r2,r3,0x02 00011e5c: 3c018001 lui r1,0x8001 00011e60: 24210014 addiu r1,r1,0x0014 # 80011ff4 00011e64: 00220821 addu r1,r1,r2 00011e68: 8c220000 lw r2,0x0000(r1) # func to run while opening file? 00011e6c: 00000000 nop 00011e70: 00400008 jr r2 00011e74: 00000000 nop
00010014: 80011ff4 0
00010018: 80011e78 1
0001001c: 80011ea4 2
00010020: 80011ec8 3
00010024: 80011ee0 4
00010028: 80011f28 5
0001002c: 80011f68 6
1
00011e78: 3404000e ori r4,r0,0x000e # CdlSetmode 00011e7c: 27a50010 addiu r5,r29,0x0010 00011e80: 00003021 addu r6,r0,r0 # normal speed 00011e84: 34020080 ori r2,r0,0x0080 00011e88: 0c007ae2 jal 0x0001eb88 # CdControl 00011e8c: a3a20010 sb r2,0x0010(r29) # CdlModeSpeed 00011e90: 8e020004 lw r2,0x0004(r16) # load file opening check? 00011e94: 3c018005 lui r1,0x8005 00011e98: ac207718 sw r0,0x7718(r1) # time played this session == 0 00011e9c: 080047d8 j 0x00011f60 00011ea0: 24420001 addiu r2,r2,0x0001 # +1
2
00011ea4: 3c028005 lui r2,0x8005 00011ea8: 8c427718 lw r2,0x7718(r2) # load play time 00011eac: 00000000 nop 00011eb0: 28420004 slti r2,r2,0x0004 00011eb4: 1440004f bne r2,r0,0x00011ff4 # skip if has not been at least 4 frames since last called 00011eb8: 00000000 nop 00011ebc: 8e020004 lw r2,0x0004(r16) 00011ec0: 080047d8 j 0x00011f60 00011ec4: 24420001 addiu r2,r2,0x0001 # else increment to next
3
00011ec8: 34040015 ori r4,r0,0x0015 # CdlSeekL 00011ecc: 0c007b30 jal 0x0001ecc0 # CdControlf like CdControl but non blocking and fast. 00011ed0: 2605001c addiu r5,r16,0x001c # seek the current CdlLoc 00011ed4: 8e020004 lw r2,0x0004(r16) 00011ed8: 080047d8 j 0x00011f60 00011edc: 24420001 addiu r2,r2,0x0001 # increment to next
4
00011ee0: 34040001 ori r4,r0,0x0001 # determine current CD status 00011ee4: 0c007ac6 jal 0x0001eb18 # CdSync 00011ee8: 00002821 addu r5,r0,r0 # don't give pointer 00011eec: 00401821 addu r3,r2,r0 00011ef0: 34020002 ori r2,r0,0x0002 00011ef4: 14620008 bne r3,r2,0x00011f18 # branch if status not "?" documentation is not helpful. 00011ef8: 34020005 ori r2,r0,0x0005 00011efc: 8e020004 lw r2,0x0004(r16) # counter? 00011f00: 8e030020 lw r3,0x0020(r16) # destPtr 00011f04: 24420001 addiu r2,r2,0x0001 00011f08: 1460003a bne r3,r0,0x00011ff4 # end if already has destination pointer 00011f0c: ae020004 sw r2,0x0004(r16) # increment to next 00011f10: 080047fd j 0x00011ff4 # end 00011f14: ae000004 sw r0,0x0004(r16) # if no destination pointer, stop opening file.
00011f18: 10620028 beq r3,r2,0x00011fbc # branch if status "?" 00011f1c: 00000000 nop 00011f20: 080047fd j 0x00011ff4 # else end, do not increment 00011f24: 00000000 nop
5
00011f28: 8e040010 lw r4,0x0010(r16) # num sectors 00011f2c: 8e050020 lw r5,0x0020(r16) # destPtr 00011f30: 0c00830f jal 0x00020c3c # CdRead 00011f34: 34060080 ori r6,r0,0x0080 # CdRom subsystem mode = double speed 00011f38: 14400004 bne r2,r0,0x00011f4c # branch if command executed successfully 00011f3c: 00000000 nop 00011f40: 8e020008 lw r2,0x0008(r16) # ? 00011f44: 080047f5 j 0x00011fd4 00011f48: 24420001 addiu r2,r2,0x0001 # ++? fail count?
00011f4c: 8e020004 lw r2,0x0004(r16) # 00011f50: 3c018005 lui r1,0x8005 00011f54: ac207718 sw r0,0x7718(r1) # reset playtime 00011f58: ae00000c sw r0,0x000c(r16) # zero 00011f5c: 24420001 addiu r2,r2,0x0001 # increment 00011f60: 080047fd j 0x00011ff4 00011f64: ae020004 sw r2,0x0004(r16) # store incremented
6
00011f68: 34040001 ori r4,r0,0x0001 00011f6c: 0c008351 jal 0x00020d44 # CdReadSync check read completion, don't wait for it to complete 00011f70: 00002821 addu r5,r0,r0 # don't store result 00011f74: 00401821 addu r3,r2,r0 00011f78: 1060ffe5 beq r3,r0,0x00011f10 # branch if CdRead is done (clear destination pointer & end) 00011f7c: 00000000 nop 00011f80: 8e020010 lw r2,0x0010(r16) # load number of sectors left to load (according to RAM.) 00011f84: 00000000 nop 00011f88: 10620003 beq r3,r2,0x00011f98 # branch if they're equal 00011f8c: 2402ffff addiu r2,r0,0xffff 00011f90: 14620017 bne r3,r2,0x00011ff0 # branch if cd read returned an error 00011f94: 00000000 nop 00011f98: 3c028005 lui r2,0x8005 00011f9c: 8c427718 lw r2,0x7718(r2) # playtime 00011fa0: 00000000 nop 00011fa4: 28420101 slti r2,r2,0x0101 00011fa8: 1440000c bne r2,r0,0x00011fdc # branch if not stalling yet? 00011fac: 00000000 nop 00011fb0: 3c018005 lui r1,0x8005 00011fb4: ac207718 sw r0,0x7718(r1) # store no playtime 00011fb8: ae00000c sw r0,0x000c(r16) # zero 00011fbc: 0c004786 jal 0x00011e18 # Reset CD Subsystems 00011fc0: 00000000 nop 00011fc4: 8e020008 lw r2,0x0008(r16) # 00011fc8: 34030001 ori r3,r0,0x0001 00011fcc: ae030004 sw r3,0x0004(r16) # retry from beginning 00011fd0: 24420001 addiu r2,r2,0x0001 00011fd4: 080047fd j 0x00011ff4 00011fd8: ae020008 sw r2,0x0008(r16) # increment fail count
00011fdc: 8e02000c lw r2,0x000c(r16) 00011fe0: 00000000 nop 00011fe4: 24420001 addiu r2,r2,0x0001 00011fe8: 080047fd j 0x00011ff4 00011fec: ae02000c sw r2,0x000c(r16) # +1 for every pass where we're not stalling?
no file/return
00011ff0: ae00000c sw r0,0x000c(r16) 00011ff4: 8e020004 lw r2,0x0004(r16) 00011ff8: 00000000 nop 00011ffc: 10400003 beq r2,r0,0x0001200c # skip if current instruction is 0 00012000: 00000000 nop 00012004: 0c004808 jal 0x00012020 # Draw Now Loading Message 00012008: 00000000 nop 0001200c: 8fbf001c lw r31,0x001c(r29) 00012010: 8fb00018 lw r16,0x0018(r29) 00012014: 27bd0020 addiu r29,r29,0x0020 00012018: 03e00008 jr r31 0001201c: 00000000 nop
Return Locations
Scus.942.21 0004153c: 0004146c - 00041594 0004399c: 00043958 - 000439bc 00042968: 00042930 - 00042a0c 000429e8: (above routine) 00044748: 000446d8 - 000447b8 00044780: (above routine) 0004482c: 000447bc - 0004489c 00044864: (above routine) 000448f8: 000448a0 - 00044950 00044918: (above routine) 000452b4: 00045268 - 000452e8
Wldcore.bin 00067334: 000672f8 - 00067480 000686ec: 000686c8 - 00068728 0008e000: 0008df98 - 0008e2b8 00090d80: 00090d50 - 00090e1c 000911e8: 000911cc - 00091234
Battle.bin 00079900: 00079298 - 00079a94 0007a010: Game Flow Control routine
Open.bin 00067130: OPEN.BIN Main Routine
