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CDi_MiSTer/doc/scratchpad/Notes.md
Andre Zeps 594bae844e FMV: Fixed timing of frame events and parameters 
- Decoupled SEQ event from GOP event.
  Now behaves like real VMPEG hardware
- Fixes Lost Ride gameplay after vehicle charge intro
- Fixes timing accuracy of temp ref and time code
  Measurable with mv_status()
2026-02-22 14:12:37 +01:00

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Notes

Building mame for the CD-i

make SOURCES=src/mame/philips/cdi.cpp REGENIE=1 -j8

Using mame

./mame cdimono1 -log -oslog ./mame cdimono1 -verbose -log -oslog -window &> log

Swap 16 bit endianness

objcopy -I binary -O binary --reverse-bytes=2 picture.bin picture2.bin

Transmit binary

scp 68ktest.rom root@mister:/media/fat/games/CD-i

Ripping from CD to single CUE/BIN

In this case, a single bin

cdrdao read-cd --read-raw --datafile cdimage.bin cdimage.toc

then byte swap and generate cue

toc2cue -s -C cdimage2.bin cdimage.toc cdimage.cue

Convert CUE/BIN to CHD

chdman createcd -i cdimage.cue -o cdimage.chd

Convert CHD to single CUE/BIN

chdman extractcd -i cdimage.chd -o cdimage.cue

Convert CHD to multi bin CUE/BIN

chdman extractcd -i cdimage.chd -sb -o cdimage.cue

Simulation speed

Vcd: --trace Written video_00.png after 44.36s -rw-rw-r-- 1 andre andre 2,5G 9. Sep 13:04 /tmp/waveform.vcd

Fst: --trace-fst Written video_00.png after 51.33 -rw-rw-r-- 1 andre andre 49M 9. Sep 13:02 /tmp/waveform.vcd

This means Fst is better as it is much smaller

Auto save of NvRAM?

Seems to be not desired:

  • SD Card wear out?
  • Point of time to write is random?
  • Unresponsive as it steals cycles from HPS IO?

https://github.com/MiSTer-devel/Main_MiSTer/issues/789 https://github.com/MiSTer-devel/Main_MiSTer/issues/760

Boot speed and autoplay using playcdi.mod (by cdifan)

Tested using Zelda - Wand of Gamelon (with CPU turbo and seek time of 1 sector)

Normal bootup: On frame 108, the system shell Philips logo becomes visible On frame 109, the Play button is visible and B1 is pressed. On frame 111, the Play button is highlighted blue On frame 211, the first frame of the Philips logo animation is visible

With playcdi.mod: On frame 149, the first frame of the Philips logo animation is visible

Debug output of CD-i Emulator

CD-i Emulator version 0.5.3-beta8 for Windows (Limited edition)
Found 31 recent files
Found cdi200a.rom (Philips CD-i 200 F1 system ROM)
Found vmpega.rom (Philips VMPEG digital video cartridge ROM 4.1)
Building system: model=cdi200a dvcart=vmpeg...
Reading cdisys.bld...
Reading cdi200a.mdl...
Reading mono1.brd...
Installed planea memory at $0
Installed planeb memory at $200000
Using cdi200a.rom...
Installed sysrom memory at $400000
Found 73 modules in memory
Configured reset vector at $400000
Installed cdic device at $300000
Installed cdicram memory at $300000
Installed slave device at $310000
Installed null device at $318000
Installed nvr device at $320000
Installed nvram memory at $320000
Cannot load cdi200a.nvr into NVRAM
Installed vdsc device at $4fffe0
Installed 68070 device at $80000000
Installed lic device at $80001001
Installed pic device at $80002040
Installed dma device at $80004000
Installed i2c device at $80002000
Installed uart device at $80002010
Installed timer device at $80002020
Reading vmpeg.dvc...
Installed sysram memory at $d00000
Installed vcd device at $e01000
Installed fma device at $e03000
Installed fmv device at $e04000
Installed fmvprg1 device at $e04800
Installed fmvprg2 device at $e05000
Using vmpega.rom...
Installed dvcrom memory at $e40000
Found 30 modules in memory
Installed dvcram memory at $e80000
Mono-I detected, clearing time limit
Listening for terminal on uart (CD-i UART)...
BUS RESET

processor reset
dn: FFFFFFFF FFFFFFFF  FFFFFFFF FFFFFFFF   FFFFFFFF FFFFFFFF  FFFFFFFF FFFFFFFF
an: FFFFFFFF FFFFFFFF  FFFFFFFF FFFFFFFF   FFFFFFFF FFFFFFFF  FFFFFFFF 00001500
pc: 004004B8  sr:2700  (--S--7 --------)                  usp:00004A72   ^ssp^
0x4004b8            >60000182         bra $40063c
Found known Philips CD-i 220 F2 system ROM

Resuming emulation...
@00400FE4 VIDEO ENABLE PLANE A
@00400FE4 VIDEO SETMODE 384x280 (384) 50Hz /2
@00400FE4 VIDEO START
@00400FEA VIDEO ENABLE PLANE B

et fun fmv
et dev fmv
et trp

@00E40A66(fmvconf) FMV PROG 0001
@00E40A66(fmvconf) WR.W 00E040DA <= 0001 .PROG
@00E40B42(fmvconf) FMV PROG 0004
@00E40B42(fmvconf) WR.W 00E040DA <= 0004 .PROG
@00E40698(fmvconf) FMV VOFF 001A
@00E40698(fmvconf) WR.W 00E0406C <= 001A .VOFF
@00E406A4(fmvconf) FMV HOFF 004A
@00E406A4(fmvconf) WR.W 00E0406E <= 004A .HOFF
@00E406B0(fmvconf) FMV VPIX 0118
@00E406B0(fmvconf) WR.W 00E04070 <= 0118 .VPIX
@00E406B8(fmvconf) FMV HPIX 0180
@00E406B8(fmvconf) WR.W 00E04072 <= 0180 .HPIX

00405ba0 00003fb8 00000000 00000001 00000003 00000100 00000000 00002010 00e80000 00003fb8 00eff36c 00efd398 000018fc 00003fa8 00efd34c 00001500 00efd314 0 00405ba2 00003fb8 00000000 00000001 00000003 00000100 00000000 00002010 00e80000 00003fb8 00eff36c 00efd398 000018fc 00003fa8 00efd34c 00001500 00efd314 511 00405ba4 00003fb8 00000000 00000001 00000003 00000100 00000000 00002010 00e80000 00003fb8 00eff36c 00efd398 000018fc 00003fa8 00efd34c 00001500 00efd314 511 00405ba6 00003fb8 00000000 00000001 00000003 00000100 00000000 00002010 00e80000 00003fb8 00eff36c 00efd398 000018fc 00003fa8 00efd34c 00001500 00efd314 0 00405b18 00003fb8 00000000 00000001 00000003 00000100 00000000 00002010 00e80000 00003fb8 00eff36c 00efd398 000018fc 00003fa8 00efd34c 00001500 00efd314 0 00405b1a 00003fb8 00000000 00000001 00000003 00000100 00000000 00002010 00e80000 00e80000 00eff36c 00efd398 000018fc 00003fa8 00efd34c 00001500 00efd314 0 00405b1e 00003fb8 00000000 00000001 00000003 00000100 00000000 00002010 00e80000 00e80000 00eff36c 00efd398 000018fc 00003fa8 00efd34c 00001500 00efd314 0 00405b20 00003fb8 00000000 00000001 00000003 00000100 00000000 00002010 00e80000 00e80000 00eff36c 00efd398 000018fc 00003fa8 00efd34c 00001500 00efd314 0 00405b3e 00003fb8 00000000 00000001 00000003 00000100 00000000 00002010 00e80000 00e80000 00eff36c 00efd398 000018fc 00003fa8 00efd34c 00001500 00efd314 0 00405b46 00003fb8 00000000 00000001 00000003 00000100 00000000 00002010 00e80000 00e80000 00eff36c 00efd398 000018fc 00003fa8 00efd34c 00001500 00efd314 0 00405baa 00003fb8 00000000 00000001 00000003 00000100 00000000 00002010 00e80000 00e80000 00eff36c 00efd398 000018fc 00003fa8 00efd34c 00001500 00efd314 0 00405bac 00003fb8 00000000 00000001 00000003 00000100 00000000 00002010 00e80000 00e80000 00eff36c 00efd398 000018fc 00003fa8 00efd34c 00001500 00efd314 0

dn: 00003FB8 00000000 00000001 00000003 00000100 00000000 00002010 00D00090 an: 00D00090 00DFF36C 00DFD398 000018FC 00003FA8 00DFD34C 00001500 00DFD314 pc: 00405B1E sr:2710 (--S--7 ---X----) usp:00D0008C ^ssp^ kernel:0x405B1E >B090 cmp.l (a0),d0

kernel:0x405B18 >2047 movea.l d7,a0 [7] kernel:0x405B1A >202F0008 move.l 8(sp),d0 [22] kernel:0x405B1E >B090 cmp.l (a0),d0 [15] kernel:0x405B20 >661C bne $405b3e [17] kernel:0x405B22 >7010 moveq #$10,d0 [7] kernel:0x405B24 >D08C add.l a4,d0 [7] kernel:0x405B26 >7200 moveq #0,d1 [7] kernel:0x405B28 >9081 sub.l d1,d0 [7]

a0 cdiemu 00D00090 != a0 MAME 00e80000

objcopy -I binary -O binary --reverse-bytes=2 cdimono1/cdi200.rom cdimono1/cdi200_swap.rom objcopy -I binary -O binary --reverse-bytes=2 cdimono1/vmpega_split.rom cdimono1/vmpega_split_swap.rom

bcompare cdimono1/cdi200_swap.rom 0/romdump0.bin bcompare cdimono1/vmpega_split_swap.rom 0/romdump1.bin

cat log | grep 'FMV INT|XFER' > log2 cat log | grep 'FMV INT|XFER|DVC Read e04062|PIC2|GOP' > log2

1 Machine Config 2 Hardware Settings 3 Hardware Config 4 Machine Setup

1 Disable VMPEG DVC No,Yes 2 Disable VMPEG No,Yes 3 Disable DVC No,Yes 4 Extension Slot 1MB, 1MB+VMPEG 5 Extension Slot Empty, DVC 6 Extension Slot Empty, VMPEG 7 Extension Slot Empty, DVC DVC DVC

1 Ports P1 Front + UART Back, P1 Back + P2 Front 2 Ports 1P + UART, 2P

1 Fast CD Seek No, Yes[U] 2 Disable CD Seek No, Yes[U]

1 CPU Turbo No, Yes[U] 2 Turbo CPU No, Yes[U]

1 Overclock input device No, Yes (it is rather long. It could be shorter?)

Lost Ride:

Syscall @ ded9b2 8e I$SetStt 00000006 00000122 00000002 00000900 0000ab00 00001999 0000bca0 00000000 00df9340 00000000 00d0d1d8 00dffd90 00d0bc98 00d0bb26 00d08000 00dfd428 SetStt MA_Loop Syscall @ deda82 8e I$SetStt 00000006 00000124 00000002 00000000 0000bd00 00000000 0000ffff 00000000 00df9340 00040e20 00d0d1d8 00dffd90 00d03b56 00d0bb26 00d08000 00dfd428 SetStt MA_Play FMA Write Stream Number 1804 0000 FMA IER 180e 013d FMA CMD 1800 0002 Syscall @ ded8c6 8e I$SetStt 00000006 00000120 00000002 00800080 f5020000 00000000 0000bca0 00000000 00df9340 00000000 00d0d1d8 00dffd90 00d0bc98 00d0bb26 00d08000 00dfd428 SetStt MA_Cntrl

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