TI-99/Sim 0.15.0
TI-99/Sim 0.15.0 emulates Texas Instruments TI-99. It reads 6 files, 1 of them required: without a required file it does not start games.
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Install this emulator's files
With RetroPie: the installer finds RetroPie and its BIOS folder, then downloads only the files TI-99/Sim 0.15.0 reads there and checks each one.
Open a terminal on the device. Or connect from a computer with SSH, a terminal over the network. Paste the line. Press Enter.
curl -fsSL https://raw.githubusercontent.com/Abdess/retrobios/main/install.sh | sh -s -- --emulator ti99sim-sdl1Technical notes
Marc Rousseau's TI-99/4A simulator at release 0.15.0, the last one with an SDL 1.2 front end. RetroPie's ti99sim-sdl1 package builds it from the source tarball it mirrors (sha256 c156674dcb3e40448e84dcfecfe4a16c2bae9df020a79da519d0603cd8ee3b92), adds one missing include and runs bin/ti99sim-sdl from its install directory, where it links TI-994A.ctg from the BIOS directory.
LocateFile (src/core/support.cpp:392-435) tries the bare name in the working directory first, then <directory>/<name> under ~/.ti99sim and under the install root. The install root is the parent of the bin/ directory holding the executable, read from /proc/self/exe, with /opt/ti99sim as the fallback (src/core/support.cpp:64-136). LocateFiles (src/core/support.cpp:437-507) lists *.ctg in <install root>/console, ~/.ti99sim/console and the working directory itself.
The console cartridge is looked up by name first and only then by content among every *.ctg in console/ (src/core/support.cpp:509-544). The two accepted content signatures, 0264512c7d9e7fa091a48e5c8734782ea031a52d and 16e275faae427465ba4dd4c2bf8569f6546d32dd for console version 2.2 (src/sdl/main.cpp:533-537), are SHA-1 digests of the ROM and GROM banks that cCartridge::sha1 assembles in memory (src/core/cartridge.cpp:248-273), not of the .ctg file. A file found by name is used without that check.
Device cartridges are picked up by name from that listing: cf7+.ctg and ti-disk.ctg are loaded automatically, ti-pcard.ctg only with --ucsd, and --no-cf7 skips cf7+.ctg (src/sdl/main.cpp:328-371, 601-604). The .ctg format read here is the one 0.16.0 writes: the loaders in src/core/cartridge.cpp are unchanged between the two releases.
6 files: 1 required, 5 optional. 1 has an HLE fallback.
| File | Required |
|---|---|
TI-994A.ctg |
yes |
spchrom.bin |
no |
ti-disk.ctg |
no |
cf7+.ctg |
no |
ti-pcard.ctg |
no |
Gram Kracker.ctg |
no |
In this collection: 6 in repo and 0 missing.
Required
Section titled “Required”TI-994A.ctg required in repo
Console ROM cartridge: CPU ROM, system GROMs and RAM layout
- Source:
src/sdl/main.cpp:533-543,src/core/support.cpp:509-544 - Collection copy:
bios/Texas Instruments/ TI-99/ TI-994A.ctg - Platforms: Recalbox:
ti994a/TI-994A.ctg
- Without it main prints "Unable to locate console ROMs!" and returns -1.
Optional
Section titled “Optional”5 files
spchrom.bin optional in repo HLE fallback
TMS6100 speech synthesizer vocabulary ROM
- Size: min 32.0 KB
- Validation: size
- Source:
src/core/tms5220.cpp:190-214 - Collection copy:
bios/Texas Instruments/ TI-99/ spchrom.bin - Platforms: Recalbox:
ti994a/spchrom.bin
- Read as one 0x8000 byte block from console/, so a shorter file is refused and bytes past it are ignored. The first byte must be 0xAA, otherwise an empty speech ROM is used.
ti-disk.ctg optional in repo
TI Disk Controller DSR ROM
- Source:
src/sdl/main.cpp:328-371 - Collection copy:
bios/Texas Instruments/ TI-99/ ti-disk.ctg - Platforms: Recalbox:
ti994a/ti-disk.ctg
- Disk emulation is unavailable without it.
cf7+.ctg optional in repo
CF7+ CompactFlash interface DSR ROM
- Source:
src/sdl/main.cpp:328-371,src/sdl/main.cpp:601 - Collection copy:
bios/Texas Instruments/ TI-99/ cf7+.ctg
ti-pcard.ctg optional in repo
TI P-Code Card (UCSD p-System) DSR ROM
- Source:
src/sdl/main.cpp:328-371,src/sdl/main.cpp:602 - Collection copy:
bios/Texas Instruments/ TI-99/ ti-pcard.ctg
- Loaded only when --ucsd is passed.
Gram Kracker.ctg optional in repo
Miller Graphics Gram Kracker ROMs
- Source:
src/core/ti994a-gk.cpp:56-70,src/sdl/ti994a-sdl.cpp:49 - Collection copy:
bios/Texas Instruments/ TI-99/ Gram Kracker.ctg
- Found by name in console/ or by content signature a3bd5257c63e190800921b52dbe3ffa91ad91113. The SDL front end derives its computer from cTI994AGK, so the lookup runs on every start.
Next steps
Section titled “Next steps”- Get your files, for the setup you play on
- Every system, and the files each one needs
- When a game does not start