DATA_BP_TYPE (Windows Embedded CE 6.0)

1/5/2010

This structure defines the types of data breakpoints.

Syntax

typedef struct _DATA_BP_TYPE {
  BP_KIND bpk;
  MEM_TYPE2 mt2;
  BYTE  bAddressSpace;
  ADDRESS_TYPE Address;
  ADDRESS_TYPE AddressMask;
  LPOLESTR szRegName;
  REGVAL_TYPE rvData;
  REGVAL_TYPE rvDataMask;
  BYTE bAccessWidthInBytes;
  DATA_ACCESS_TYPE da;
  DWORD dwTotalBypassCount;
  BOOL fEnabled;
} DATA_BP_TYPE;

Members

• bpk
  Indicates the kind of breakpoint.

  Must be one of the BP_KIND enumerations.

• mt2
  Memory type.

  Must be one of the MEM_TYPE2 enumerations.

• bAddressSpace
  Address space of the data breakpoint, if mt2 is mt2PhysicalOrPeriIO.

  By convention, bAddressSpace one of the following values:

  • 0 = Physical memory
  • 1 = Peripheral I/O, if not memory mapped
  • 2...255 = free for custom use. These values are for use in conjunction with MEMMAP_DESCRIPTION_TYPE to define names for address spaces.

• Address
  Address of the data to be accessed to break on (only bits set in AddressMask are significant).

  Valid only if mt2 is not mt2CpuReg.

• AddressMask
  Mask to apply on Address comparison for matching bits.

  Valid only if mt2 is not mt2CpuReg

  If the target device does not support AddressMask, set AddressMask to -1.

• szRegName
  Name of the register to monitored, if mt2 is mt2CpuReg.

• rvData
  Value of the data to be accessed to break on.

  Only bits set in rvDataMask are significant.

• rvDataMask
  Mask to apply on data comparison for matching bits.

  If the target device does not support data masking, rvDataMaskshould be -1 (4294967295).

• bAccessWidthInBytes
  If the data width specification is not supported by the target, bAccessWidthInBytes specifies the data width in bytes, where byte=1, word=2, dword=4, and so on.

• da
  Data access type. Must be one of the following:

  • 0 = Read access
  • 1 = Write access
  • 2 = Both (don't care)

  If the data access type specification is not supported by the target, should be 2 (daBoth).

• dwTotalBypassCount
  Total number of bypasses to allow before triggering a CPU halt on this breakpoint.

  If the total bypass count is not supported, should be 0.

  For more information, see BREAKPOINT_SUPPORT_TYPE2.

• fEnabled
  Initial state (enabled or disabled).

Requirements

See Also

Reference

IeXDI2 Structures
IeXDI2 Interfaces