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pascal@19515
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1 // This file is distributed under GPL
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2 //
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3 // Common defs not belonging to CRTL
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4
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5 #define NL "\r\n"
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6 #define VERSION_STR "0.97"
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7
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8 #if 0 // DEBUG
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9 #undef NDEBUG
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10 #define DEBUG
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11 #define static
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12 #else // not DEBUG
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13 #define NDEBUG
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14 #undef DEBUG
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15 #endif
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16
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17 typedef unsigned long u32; typedef signed long s32;
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18 typedef unsigned short u16; typedef signed short s16;
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19 typedef unsigned char u8; typedef signed char s8;
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20
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21 const u16 _16k = 16*1024u;
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22 const u16 _32k = 32*1024u;
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23 const u32 _64k = 64*1024ul;
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24 const u32 _1m = 1024ul*1024ul;
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25
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26 const PAGE_BITS = 12;
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27 const PAGE_SIZE = 1<<PAGE_BITS;
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28 const PAGE_MASK = PAGE_SIZE-1;
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29
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30 // WARNING!
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31 // BC 3.1 bug: seg() will generate incorrect code if inlined!
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32 // replaced by _dirty_ hack for now
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33 // u16 seg(const void far* p) { return FP_SEG(p); }
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34 inline u16 seg(const void far*) { return _DS; }
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35
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36 inline u16 ofs(const void* p) { return FP_OFF(p); }
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37
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38 extern struct image_himem {
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39 int fd;
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40 u32 fallback;
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41 u32 size;
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42 u32 remaining;
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43 u32 buf;
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44 u32 *bufv;
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45 const char *errmsg;
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46 u32 chunk_size;
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47 void (*next_chunk)(struct image_himem *);
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48 u16 state;
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49 } pm, initrd;
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50
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51 extern char vcpi;
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52 extern const char* kernel_name;
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53 extern const char* initrd_name;
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54 extern const char* cmdline;
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55 extern u16 root_dev;
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56 extern u16 vid_mode;
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57 // External asm helpers
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58 extern "C" void memcpy32(u16,u32, u16,u32, u32);
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59 extern "C" void set_sregs_jump_seg_ofs(u32 csip, u32 sssp);
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60 extern "C" u32 xmm_alloc(u32 size);
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61 extern u32 topmem;
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62 extern "C" u32 memtopz();
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63 extern "C" u32 memtop();
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64 extern "C" void enable_a20_or_die();
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65 extern "C" int get_vcpi_interface();
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66 extern "C" char* prepare_vcpi(void *pagebuf);
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67 //extern "C" int call_pm_routine(void* f);
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68 extern "C" void memcpy_vcpi(u32 dstofs,u16 srcseg,u16 srcofs);
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69 extern "C" void vm2rm();
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70 extern "C" void hook_int15_88();
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71
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72 // C++ helpers
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73 #ifdef DEBUG
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74 extern "C" void hang();
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75 #endif
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76
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77 void load_image(struct image_himem *m);
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78 extern "C" void open_image(const char *name, struct image_himem *m);
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79 extern "C" int read_image(struct image_himem *m, void* data, int sz);
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80 char* load_kernel();
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81 void load_initrd();
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82 void boot_kernel();
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