MAMEWorld Forums - EmuChat - Re: Adding drivers for Dotemu's IREM roms/compiling help.

> I recently bought a bundle of IREM arcade games from Dotemu and, partially for my own
> edification and partially because the included emulator has a lot of issues on my
> laptop, I'm interested in adding drivers for these to MAME (for my personal use, if
> nothing else).
>
> I've been looking at R-Type Leo first.
>
> 1. I'm having some issues getting the MAME 1.5.2 source to compile. At the linking
> stage, I'm getting an error about an undefined reference to driver_xorworld in
> drivlist.o. Commenting out the two lines referring to xorworld in drivlist.c lets me
> finish linking, but is doing this going to cause other problems?
>
> I'm also getting this access violation when launching the new executable. The
> official binaries work fine, it's only the one I'm compiling myself:
>
>
> -----------------------------------------------------
> Exception at EIP=00000000021C71A1 (decompress_data+0x0021): ACCESS VIOLATION
> While attempting to read memory at 0000000000000000
> -----------------------------------------------------
> RAX=00000000039B7040 RBX=000000000022E880 RCX=00000000052C316B RDX=0000000000007
> 116
> RSI=0000000000000000 RDI=0000000004097B60 RBP=000000000671FFA0 RSP=0000000000227
> B20
> R8=0000000000007117 R9=0000000006931E40 R10=0000000000007116 R11=8101010101010
> 100
> R12=00000000000003E7 R13=0000000000000000 R14=0000000000000000 R15=0000000000000
> 000
> -----------------------------------------------------
> Stack crawl:
> 0000000000227B50: 00000000021C71A1 (decompress_data+0x0021)
> 000000000022F360: 000000000201ACEF (ui_draw_text_box(render_container*, char c
> onst*, int, float, float, unsigned int) [clone .constprop.98]+0x012f)
> 000000000022F8A0: 00000000021862BE (chd_codec_list::find_in_list(unsigned int)
> +0x004e)
> 000000000022FE10: 00000000016D0933 (t11_device::bic_ixd_ix(unsigned short)+0x0
> 173)
> 000000000022FE60: 00000000023E162C (device_t* driver_device_creator(machine_config
> const&, char const*, device_t*, unsigned int)+0x01bc)
> 000000000022FF20: 00000000004013F0 (__tmainCRTStartup+0x0270)
> 000000000022FF50: 00000000004014F8 (mainCRTStartup+0x0018)
> 000000000022FF80: 000000007794652D (BaseThreadInitThunk+0x000d)
> 000000000022FFD0: 0000000077B7C541 (RtlUserThreadStart+0x0021)
>
> 2. The standard MAME rom archive and the one Dotemu has are structured differently,
> although that actual data appears to be pretty similar. In the Dotemu ones, most of
> the individuals binaries have been merged. For the most part, I've found which MAME
> binaries correspond to which Dotemu binaries, except for one.
>
> The MAME rom archive has a file called rtl-da.bin in the R-Type Leo romset, and m92.c
> has this getting loaded into a ROM region called "irem". The other games in the m92.c
> driver source do something similar.
>
> Any idea what this is for?
>
> Thanks!

Slightly off-topic, but did they EVER update the program? I bought it a few years ago and they said they had a new update in the works but it never came. The emulation stunk. I already paid for my license to use the games so I just play them in MAME instead.