ShuriZma
/
mgba
mirror of https://github.com/mgba-emu/mgba.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

GBA: More savestate sanitization

This commit is contained in:
Jeffrey Pfau 2015-10-03 21:33:31 -07:00
parent 62304e3aa2
commit ed0802b46f
1 changed files with 11 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
src/gba/serialize.c
View File

@ -99,6 +99,17 @@ bool GBADeserialize(struct GBA* gba, const struct GBASerializedState* state) {
GBALog(gba, GBA_LOG_WARN, "Savestate is corrupted: nextHblank is negative");
error = true;
}
if (state->video.nextEvent < state->cpu.cycles) {
uint16_t dispstat = state->io[REG_DISPSTAT >> 1];
if (GBARegisterDISPSTATIsInHblank(dispstat) && state->video.eventDiff + state->cpu.cycles > state->video.nextHblank) {
GBALog(gba, GBA_LOG_WARN, "Savestate is corrupted: nextHblank will be negative");
error = true;
}
if (!GBARegisterDISPSTATIsInHblank(dispstat) && state->video.eventDiff + state->cpu.cycles > state->video.lastHblank + VIDEO_HBLANK_LENGTH) {
GBALog(gba, GBA_LOG_WARN, "Savestate is corrupted: nextHblank will be negative");
error = true;
}
}
if (state->timers[0].overflowInterval < 0 || state->timers[1].overflowInterval < 0 || state->timers[2].overflowInterval < 0 || state->timers[3].overflowInterval < 0) {
GBALog(gba, GBA_LOG_WARN, "Savestate is corrupted: overflowInterval is negative");
error = true;