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