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add prefetch queue emulation

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3158
This commit is contained in:
Sebastian Strohhäcker 2008-05-21 21:29:32 +00:00
parent 1a042c5abb
commit 24bb7de36c
6 changed files with 353 additions and 5 deletions
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28
src/cpu/cpu.cpp
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@ -16,7 +16,7 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* $Id: cpu.cpp,v 1.111 2008-05-18 13:11:14 c2woody Exp $ */
/* $Id: cpu.cpp,v 1.112 2008-05-21 21:29:32 c2woody Exp $ */
#include <assert.h>
#include <sstream>
@ -65,6 +65,8 @@ Bitu CPU_ArchitectureType = CPU_ARCHTYPE_MIXED;
Bitu CPU_flag_id_toggle=0;
Bitu CPU_PrefetchQueueSize=0;
void CPU_Core_Full_Init(void);
void CPU_Core_Normal_Init(void);
void CPU_Core_Simple_Init(void);
@ -2313,10 +2315,34 @@ public:
CPU_ArchitectureType = CPU_ARCHTYPE_MIXED;
} else if (cputype == "386") {
CPU_ArchitectureType = CPU_ARCHTYPE_386FAST;
} else if (cputype == "386_prefetch") {
CPU_ArchitectureType = CPU_ARCHTYPE_386FAST;
if (core == "normal") {
cpudecoder=&CPU_Core_Prefetch_Run;
CPU_PrefetchQueueSize = 16;
} else if (core == "auto") {
cpudecoder=&CPU_Core_Prefetch_Run;
CPU_PrefetchQueueSize = 16;
CPU_AutoDetermineMode&=(~CPU_AUTODETERMINE_CORE);
} else {
E_Exit("prefetch queue emulation requires the normal core setting.");
}
} else if (cputype == "386_slow") {
CPU_ArchitectureType = CPU_ARCHTYPE_386SLOW;
} else if (cputype == "486_slow") {
CPU_ArchitectureType = CPU_ARCHTYPE_486NEWSLOW;
} else if (cputype == "486_prefetch") {
CPU_ArchitectureType = CPU_ARCHTYPE_486NEWSLOW;
if (core == "normal") {
cpudecoder=&CPU_Core_Prefetch_Run;
CPU_PrefetchQueueSize = 32;
} else if (core == "auto") {
cpudecoder=&CPU_Core_Prefetch_Run;
CPU_PrefetchQueueSize = 32;
CPU_AutoDetermineMode&=(~CPU_AUTODETERMINE_CORE);
} else {
E_Exit("prefetch queue emulation requires the normal core setting.");
}
} else if (cputype == "pentium_slow") {
CPU_ArchitectureType = CPU_ARCHTYPE_PENTIUMSLOW;
}