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mirror of https://gitlab.os-k.eu/os-k-team/kvisc.git synced 2023-08-25 14:05:46 +02:00
kvisc/vm/pc/mem.h
julianb0 e1299836de
vm
2019-08-03 19:01:12 +02:00

28 lines
821 B
C

// The OS/K Team licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
static inline ushort bswap16(ushort u)
{ return ((u<<8) | (u>>8)); }
static inline char getmempref(ushort len)
{ return (len==1?'b':(len==2?'w':(len==4?'d':(len==8?'q':'x')))); }
#define MEMOFF (1 * 1024 * 1024)
#define MEMSIZE (16 * 1024 * 1024) // 16MB
#define MAXADDR 0x8000000000000 // 2^48 - 1
#define addr2real(p) ((p) - MEMOFF)
#define real2addr(p) ((p) + MEMOFF)
// Address of boot firmware stack
#define FWSTACK (MEMOFF * 2) // 2MB
ulong readstr(ulong addr, ulong maxn, char *buf);
ulong writestr(ulong addr, ulong maxn, char *str);
ulong readmemzx(ulong addr, uint len);
ulong readmemsx(ulong addr, uint len);
void writemem(ulong val, ulong addr, uint len);