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New memory handling using 1 big block of memory

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1920
This commit is contained in:
Sjoerd van der Berg 2004-08-23 12:19:17 +00:00
parent fc8d4d89c2
commit f7a6317328
3 changed files with 27 additions and 101 deletions
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26
include/mem.h
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@ -20,8 +20,6 @@
#define __MEM_H
#include <dosbox.h>
#define bmemcpy(mem1,mem2,size) memcpy((void *)mem1,(void *)mem2,size)
typedef Bit32u PhysPt;
typedef Bit8u * HostPt;
typedef Bit32u RealPt;
@ -30,6 +28,8 @@ typedef Bit32s MemHandle;
#define MEM_PAGESIZE 4096
extern HostPt MemBase;
bool MEM_A20_Enabled(void);
void MEM_A20_Enable(bool enable);
@ -123,9 +123,25 @@ void mem_writeb(PhysPt pt,Bit8u val);
void mem_writew(PhysPt pt,Bit16u val);
void mem_writed(PhysPt pt,Bit32u val);
void phys_writeb(PhysPt addr,Bit8u val);
void phys_writew(PhysPt addr,Bit16u val);
void phys_writed(PhysPt addr,Bit32u val);
INLINE void phys_writeb(PhysPt addr,Bit8u val) {
host_writeb(MemBase+addr,val);
}
INLINE void phys_writew(PhysPt addr,Bit16u val){
host_writew(MemBase+addr,val);
}
INLINE void phys_writed(PhysPt addr,Bit32u val){
host_writed(MemBase+addr,val);
}
INLINE Bit8u phys_readb(PhysPt addr) {
return host_readb(MemBase+addr);
}
INLINE Bit16u phys_readw(PhysPt addr){
return host_readw(MemBase+addr);
}
INLINE Bit32u phys_readd(PhysPt addr){
return host_readd(MemBase+addr);
}
/* These don't check for alignment, better be sure it's correct */