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New variables for the timing code and some general clean up.

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@506
This commit is contained in:
Sjoerd van der Berg 2002-11-17 08:39:57 +00:00
parent b3a766a2fb
commit 6a16c109af
1 changed files with 20 additions and 15 deletions
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35
src/cpu/cpu.cpp
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@ -30,21 +30,24 @@ Flag_Info flags;
CPU_Regs cpu_regs;
Segment Segs[6];
Bitu cpu_cycles;
Bits CPU_Cycles=0;
Bits CPU_CycleLeft=0;
Bits CPU_CycleMax=1500;
CPU_Decoder * cpudecoder;
static void CPU_CycleIncrease(void) {
Bitu old_cycles=cpu_cycles;
cpu_cycles=(Bitu)(cpu_cycles*1.2);
if (cpu_cycles==old_cycles) cpu_cycles++;
LOG_MSG("CPU:%d cycles",cpu_cycles);
Bitu old_cycles=CPU_CycleMax;
CPU_CycleMax=(Bitu)(CPU_CycleMax*1.2);
if (CPU_CycleMax==old_cycles) CPU_CycleMax++;
LOG_MSG("CPU:%d cycles",CPU_CycleMax);
}
static void CPU_CycleDecrease(void) {
cpu_cycles=(Bitu)(cpu_cycles/1.2);
if (!cpu_cycles) cpu_cycles=1;
LOG_MSG("CPU:%d cycles",cpu_cycles);
CPU_CycleMax=(Bitu)(CPU_CycleMax/1.2);
if (!CPU_CycleMax) CPU_CycleMax=1;
LOG_MSG("CPU:%d cycles",CPU_CycleMax);
}
Bit8u lastint;
@ -67,10 +70,10 @@ void Interrupt(Bit8u num) {
case 0x11:
case 0x12:
case 0x13:
case 0x16:
case 0x15:
case 0x1A:
case 0x16:
case 0x17:
case 0x1A:
case 0x1C:
case 0x21:
case 0x2a:
@ -167,13 +170,15 @@ void CPU_Init(Section* sec) {
flags.io=0;
SetCPU16bit();
cpu_cycles=section->Get_int("cycles");
if (!cpu_cycles) cpu_cycles=300;
KEYBOARD_AddEvent(KBD_f11,CTRL_PRESSED,CPU_CycleDecrease);
KEYBOARD_AddEvent(KBD_f12,CTRL_PRESSED,CPU_CycleIncrease);
reg_al=0;
reg_ah=0;
MSG_Add("CPU_CONFIGFILE_HELP","The amount of cycles to execute each loop. Lowering this setting will slowdown dosbox\n");
CPU_Cycles=0;
CPU_CycleMax=section->Get_int("cycles");;
if (!CPU_CycleMax) CPU_CycleMax=1500;
CPU_CycleLeft=0;
MSG_Add("CPU_CONFIGFILE_HELP","The amount of cycles to execute each loop. Lowering this setting will slowdown dosbox\n");
}