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Protection against PIC index overflowing when changing cycles.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@684
This commit is contained in:
Sjoerd van der Berg 2003-02-22 12:16:20 +00:00
parent 733c4a51ca
commit 3e9e80ea13
1 changed files with 2 additions and 0 deletions
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2
src/cpu/cpu.cpp
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@ -40,12 +40,14 @@ CPU_Decoder * cpudecoder;
static void CPU_CycleIncrease(void) {
Bitu old_cycles=CPU_CycleMax;
CPU_CycleMax=(Bitu)(CPU_CycleMax*1.2);
CPU_CycleLeft=0;CPU_Cycles=0;
if (CPU_CycleMax==old_cycles) CPU_CycleMax++;
LOG_MSG("CPU:%d cycles",CPU_CycleMax);
}
static void CPU_CycleDecrease(void) {
CPU_CycleMax=(Bitu)(CPU_CycleMax/1.2);
CPU_CycleLeft=0;CPU_Cycles=0;
if (!CPU_CycleMax) CPU_CycleMax=1;
LOG_MSG("CPU:%d cycles",CPU_CycleMax);
}