PSDHLP CALL REAL MODE

Call a PSD function in real mode.

This function is used by the PSD developer to call one of his PSD functions in real mode.

Mode

Callable in Init mode only.

Syntax

PSDHLP_CALL_REAL_MODE <keywords>

Parameters

Pointer to a CALL_REAL_MODE structure.

  ulong_t function;
  ulong_t pdata;

function

contains the linear address of the function to be called in real mode.

pdata

contains the linear address of a parameter to be passed to the real mode function. The parameter is pointed to by DS:SI on entry to the called function.

Return Code

A return code may be returned by the real mode function in EAX.

Remarks

The function can not call a PSD help that may block.

Structure

typedef struct call_real_mode_s {
   ulong_t function;
   ulong_t pdata;
} CALL_REAL_MODE;