Spice86: Difference between revisions

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Stunts works well under many emulators.
Stunts works well under many emulators.
===DOSBox===
* '''Vanilla DOSBox''' supports the game without particular problems.
* '''DOSBox Staging''' No problems are to be expected, since this emulator is used by one of [[Restunts]]' main contributors.
* '''Dosbox-X''' also works but tends to allocate less conventional memory, which has led to issues when using demanding car models. The problem can be prevented by disabling <code>xms</code> and set <code>minimum mcb free</code> to 1.
===Spice86===


'''Spice86''' is an experimental emulator, whose support for Stunts is being worked on as of 2025. At present (2025-03-01) it can start the game, but no sound is played (start with <code>-a ns</code> to avoid wasting cycles on that)
'''Spice86''' is an experimental emulator, whose support for Stunts is being worked on as of 2025. At present (2025-03-01) it can start the game, but no sound is played (start with <code>-a ns</code> to avoid wasting cycles on that)

Revision as of 02:26, 1 March 2025

Stunts works well under many emulators.

Spice86 is an experimental emulator, whose support for Stunts is being worked on as of 2025. At present (2025-03-01) it can start the game, but no sound is played (start with -a ns to avoid wasting cycles on that) Additionally, one must give the parameter --InstructionsPerSecond 5000000.

The reason for this workaround is that Stunts activates interrupts in the middle of the int 8 handler (see here), so another int 8 can could be triggered in between. This interrupt corresponds to the programmable interrupt timer, which Stunts sets at 100 Hz. So if the int 8 handler needs more than 1/100 seconds to run, disaster ensues. This probably never happens on real CPUs, but might occur if the emulator's simulated CPU is too slow with respect to the simulated PIT.