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Diff for /np2/i386c/ia32/segments.h between versions 1.7 and 1.11

version 1.7, 2004/02/20 16:09:04 version 1.11, 2008/03/22 04:03:08
Line 12 Line 12
  * 2. Redistributions in binary form must reproduce the above copyright   * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the   *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.   *    documentation and/or other materials provided with the distribution.
  * 3. The name of the author may not be used to endorse or promote products  
  *    derived from this software without specific prior written permission.  
  *   *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES   * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
Line 41  typedef struct { Line 39  typedef struct {
         union {          union {
                 struct {                  struct {
                         UINT32  segbase;                          UINT32  segbase;
                         UINT32  segend;                          UINT32  segend; /* unused */
                         UINT32  limit;                          UINT32  limit;
   
                         UINT8   c;      /* 0 = data, 1 = code */                          UINT8   c;      /* 0 = data, 1 = code */
Line 73  typedef struct { Line 71  typedef struct {
         UINT8   flag;          UINT8   flag;
 #define CPU_DESC_FLAG_READABLE  (1 << 0)  #define CPU_DESC_FLAG_READABLE  (1 << 0)
 #define CPU_DESC_FLAG_WRITABLE  (1 << 1)  #define CPU_DESC_FLAG_WRITABLE  (1 << 1)
   #define CPU_DESC_FLAG_WHOLEADR  (1 << 2)
 } descriptor_t;  } descriptor_t;
   
   #define SEG_IS_VALID(sdp)               ((sdp)->valid)
   #define SEG_IS_PRESENT(sdp)             ((sdp)->p)
   #define SEG_IS_32BIT(sdp)               ((sdp)->d)
   #define SEG_IS_SYSTEM(sdp)              (!(sdp)->s)
   #define SEG_IS_CODE(sdp)                ((sdp)->s && (sdp)->u.seg.c)
   #define SEG_IS_DATA(sdp)                ((sdp)->s && !(sdp)->u.seg.c)
   #define SEG_IS_READABLE_CODE(sdp)       ((sdp)->u.seg.wr)
   #define SEG_IS_WRITABLE_DATA(sdp)       ((sdp)->u.seg.wr)
   #define SEG_IS_CONFORMING_CODE(sdp)     ((sdp)->u.seg.ec)
   #define SEG_IS_EXPANDDOWN_DATA(sdp)     ((sdp)->u.seg.ec)
   
 /*  /*
  * セグメント・ディスクリプタ   * segment descriptor
  *   *
  *  31            24 23 22 21 20 19   16 15 14 13 12 11    8 7             0   *  31            24 23 22 21 20 19   16 15 14 13 12 11    8 7             0
  * +----------------+--+--+--+--+-------+--+-----+--+-------+---------------+   * +----------------+--+--+--+--+-------+--+-----+--+-------+---------------+
Line 90  typedef struct { Line 99  typedef struct {
  */   */
   
 /* descriptor common */  /* descriptor common */
 #define CPU_DESC_H_TYPE         (0xf <<  8)  #define CPU_DESC_H_TYPE_SHIFT   8
   #define CPU_DESC_H_TYPE         (0xf << CPU_DESC_H_TYPE_SHIFT)
 #define CPU_DESC_H_S            (  1 << 12)     /* 0 = system, 1 = code/data */  #define CPU_DESC_H_S            (  1 << 12)     /* 0 = system, 1 = code/data */
 #define CPU_DESC_H_DPL          (  3 << 13)  #define CPU_DESC_H_DPL_SHIFT    13
   #define CPU_DESC_H_DPL          (  3 << CPU_DESC_H_DPL_SHIFT)
 #define CPU_DESC_H_P            (  1 << 15)     /* exist */  #define CPU_DESC_H_P            (  1 << 15)     /* exist */
   
 /* for segment descriptor */  /* for segment descriptor */
Line 135  typedef struct { Line 146  typedef struct {
 #define CPU_SYSDESC_TYPE_INTR           0x06  #define CPU_SYSDESC_TYPE_INTR           0x06
 #define CPU_SYSDESC_TYPE_TRAP           0x07  #define CPU_SYSDESC_TYPE_TRAP           0x07
 #define CPU_SYSDESC_TYPE_MASKBIT        0x07  #define CPU_SYSDESC_TYPE_MASKBIT        0x07
   #define CPU_SYSDESC_TYPE_32BIT          0x08
   
 #define CPU_SYSDESC_TYPE_TSS_BUSY_IND   0x02  #define CPU_SYSDESC_TYPE_TSS_BUSY_IND   0x02
   
 #define CPU_SET_SEGDESC_DEFAULT(dscp, idx, selector) \  
 do { \  static INLINE void
         (dscp)->u.seg.segbase = (UINT32)(selector) << 4; \  segdesc_clear(descriptor_t *sdp)
         (dscp)->u.seg.segend = (dscp)->u.seg.segbase + (dscp)->u.seg.limit; \  {
         (dscp)->u.seg.c = ((idx) == CPU_CS_INDEX) ? 1 : 0; \  
         (dscp)->u.seg.g = 0; \          memset((sdp), 0, sizeof(*sdp));
         (dscp)->valid = 1; \  }
         (dscp)->p = 1; \  
         (dscp)->type = 0x02; /* writable */ \  void segdesc_init(int idx, UINT16 sreg, descriptor_t *sdp);
         (dscp)->dpl = 0; \  void segdesc_set_default(int idx, UINT16 selector, descriptor_t *sdp);
         (dscp)->s = 1;  /* code/data */ \  void load_descriptor(descriptor_t *sdp, UINT32 addr);
         (dscp)->d = 0; /* 16bit */ \  
         (dscp)->flag = CPU_DESC_FLAG_READABLE|CPU_DESC_FLAG_WRITABLE; \  void load_segreg(int idx, UINT16 selector, UINT16 *sregp, descriptor_t *sdp, int exc);
 } while (/*CONSTCOND*/ 0)  #define LOAD_SEGREG1(idx, selector, e) \
           load_segreg(idx, selector, &CPU_REGS_SREG(idx), &CPU_STAT_SREG(idx), e)
 #define CPU_SET_TASK_BUSY(selector, dscp) \  #define LOAD_SEGREG(idx, selector) \
 do { \          LOAD_SEGREG1((idx), (selector), GP_EXCEPTION)
         UINT32 addr; \  void load_ss(UINT16 selector, const descriptor_t *sdp, int cpl);
         UINT32 h; \  void load_cs(UINT16 selector, const descriptor_t *sdp, int cpl);
         addr = CPU_GDTR_BASE + ((selector) & CPU_SEGMENT_SELECTOR_INDEX_MASK); \  
         h = cpu_kmemoryread_d(addr + 4); \  
         if (!(h & CPU_TSS_H_BUSY)) { \  
                 (dscp)->type |= CPU_SYSDESC_TYPE_TSS_BUSY_IND; \  
                 h |= CPU_TSS_H_BUSY; \  
                 cpu_kmemorywrite_d(addr + 4, h); \  
         } else { \  
                 ia32_panic("CPU_SET_TASK_BUSY: already busy (%04x:%08x)", selector, h); \  
         } \  
 } while (/*CONSTCOND*/ 0)  
   
 #define CPU_SET_TASK_FREE(selector, dscp) \  
 do { \  
         UINT32 addr; \  
         UINT32 h; \  
         addr = CPU_GDTR_BASE + ((selector) & CPU_SEGMENT_SELECTOR_INDEX_MASK); \  
         h = cpu_kmemoryread_d(addr + 4); \  
         if (h & CPU_TSS_H_BUSY) { \  
                 (dscp)->type &= ~CPU_SYSDESC_TYPE_TSS_BUSY_IND; \  
                 h &= ~CPU_TSS_H_BUSY; \  
                 cpu_kmemorywrite_d(addr + 4, h); \  
         } else { \  
                 ia32_panic("CPU_SET_TASK_FREE: already free (%04x:%08x)", selector, h); \  
         } \  
 } while (/*CONSTCOND*/ 0)  
   
 void load_descriptor(descriptor_t *descp, UINT32 addr);  
   
 #define CPU_SET_SEGREG(idx, selector)   load_segreg(idx, selector, GP_EXCEPTION)  
 void load_segreg(int idx, UINT16 selector, int exc);  
 void load_ss(UINT16 selector, descriptor_t *sd, UINT cpl);  
 void load_cs(UINT16 selector, descriptor_t *sd, UINT cpl);  
 void load_ldtr(UINT16 selector, int exc);  void load_ldtr(UINT16 selector, int exc);
   
   
Line 212  typedef struct { Line 192  typedef struct {
 } selector_t;  } selector_t;
   
 int parse_selector(selector_t *ssp, UINT16 selector);  int parse_selector(selector_t *ssp, UINT16 selector);
 int selector_is_not_present(selector_t *ssp);  int selector_is_not_present(const selector_t *ssp);
   
 #ifdef __cplusplus  #ifdef __cplusplus
 }  }
Removed from v.1.7  
changed lines
  Added in v.1.11

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