/*++ Copyright (c) 1998 Intel Corporation Module Name: print.c Abstract: Revision History --*/ #include "lib.h" #include "efistdarg.h" // !!! // // Declare runtime functions // #ifdef RUNTIME_CODE #ifndef __GNUC__ #pragma RUNTIME_CODE(DbgPrint) // For debugging.. /* #pragma RUNTIME_CODE(_Print) #pragma RUNTIME_CODE(PFLUSH) #pragma RUNTIME_CODE(PSETATTR) #pragma RUNTIME_CODE(PPUTC) #pragma RUNTIME_CODE(PGETC) #pragma RUNTIME_CODE(PITEM) #pragma RUNTIME_CODE(ValueToHex) #pragma RUNTIME_CODE(ValueToString) #pragma RUNTIME_CODE(TimeToString) */ #endif /* !defined(__GNUC__) */ #endif // // // #define PRINT_STRING_LEN 200 #define PRINT_ITEM_BUFFER_LEN 100 typedef struct { BOOLEAN Ascii; UINTN Index; union { CONST CHAR16 *pw; CONST CHAR8 *pc; } un; } POINTER; #define pw un.pw #define pc un.pc typedef struct _pitem { POINTER Item; CHAR16 Scratch[PRINT_ITEM_BUFFER_LEN]; UINTN Width; UINTN FieldWidth; UINTN *WidthParse; CHAR16 Pad; BOOLEAN PadBefore; BOOLEAN Comma; BOOLEAN Long; } PRINT_ITEM; typedef struct _pstate { // Input POINTER fmt; va_list args; // Output CHAR16 *Buffer; CHAR16 *End; CHAR16 *Pos; UINTN Len; UINTN Attr; UINTN RestoreAttr; UINTN AttrNorm; UINTN AttrHighlight; UINTN AttrError; INTN (EFIAPI *Output)(VOID *context, CHAR16 *str); INTN (EFIAPI *SetAttr)(VOID *context, UINTN attr); VOID *Context; // Current item being formatted struct _pitem *Item; } PRINT_STATE; // // Internal fucntions // STATIC UINTN _Print ( IN PRINT_STATE *ps ); STATIC UINTN _IPrint ( IN UINTN Column, IN UINTN Row, IN SIMPLE_TEXT_OUTPUT_INTERFACE *Out, IN CONST CHAR16 *fmt, IN CONST CHAR8 *fmta, IN va_list args ); STATIC INTN EFIAPI _DbgOut ( IN VOID *Context, IN CHAR16 *Buffer ); STATIC VOID PFLUSH ( IN OUT PRINT_STATE *ps ); STATIC VOID PPUTC ( IN OUT PRINT_STATE *ps, IN CHAR16 c ); STATIC VOID PITEM ( IN OUT PRINT_STATE *ps ); STATIC CHAR16 PGETC ( IN POINTER *p ); STATIC VOID PSETATTR ( IN OUT PRINT_STATE *ps, IN UINTN Attr ); // // // INTN EFIAPI _SPrint ( IN VOID *Context, IN CHAR16 *Buffer ); INTN EFIAPI _PoolPrint ( IN VOID *Context, IN CHAR16 *Buffer ); INTN DbgPrint ( IN INTN mask, IN CONST CHAR8 *fmt, ... ) /*++ Routine Description: Prints a formatted unicode string to the default StandardError console Arguments: mask - Bit mask of debug string. If a bit is set in the mask that is also set in EFIDebug the string is printed; otherwise, the string is not printed fmt - Format string Returns: Length of string printed to the StandardError console --*/ { SIMPLE_TEXT_OUTPUT_INTERFACE *DbgOut; PRINT_STATE ps; va_list args; UINTN back; UINTN attr; UINTN SavedAttribute; if (!(EFIDebug & mask)) { return 0; } va_start (args, fmt); ZeroMem (&ps, sizeof(ps)); ps.Output = _DbgOut; ps.fmt.Ascii = TRUE; ps.fmt.pc = fmt; va_copy(ps.args, args); ps.Attr = EFI_TEXT_ATTR(EFI_LIGHTGRAY, EFI_RED); DbgOut = LibRuntimeDebugOut; if (!DbgOut) { DbgOut = ST->StdErr; } if (DbgOut) { ps.Attr = DbgOut->Mode->Attribute; ps.Context = DbgOut; ps.SetAttr = (INTN (EFIAPI *)(VOID *, UINTN)) DbgOut->SetAttribute; } SavedAttribute = ps.Attr; back = (ps.Attr >> 4) & 0xf; ps.AttrNorm = EFI_TEXT_ATTR(EFI_LIGHTGRAY, back); ps.AttrHighlight = EFI_TEXT_ATTR(EFI_WHITE, back); ps.AttrError = EFI_TEXT_ATTR(EFI_YELLOW, back); attr = ps.AttrNorm; if (mask & D_WARN) { attr = ps.AttrHighlight; } if (mask & D_ERROR) { attr = ps.AttrError; } if (ps.SetAttr) { ps.Attr = attr; uefi_call_wrapper(ps.SetAttr, 2, ps.Context, attr); } _Print (&ps); va_end (ps.args); va_end (args); // // Restore original attributes // if (ps.SetAttr) { uefi_call_wrapper(ps.SetAttr, 2, ps.Context, SavedAttribute); } return 0; } STATIC INTN IsLocalPrint(void *func) { if (func == _DbgOut || func == _SPrint || func == _PoolPrint) return 1; return 0; } STATIC INTN EFIAPI _DbgOut ( IN VOID *Context, IN CHAR16 *Buffer ) // Append string worker for DbgPrint { SIMPLE_TEXT_OUTPUT_INTERFACE *DbgOut; DbgOut = Context; // if (!DbgOut && ST && ST->ConOut) { // DbgOut = ST->ConOut; // } if (DbgOut) { if (IsLocalPrint(DbgOut->OutputString)) DbgOut->OutputString(DbgOut, Buffer); else uefi_call_wrapper(DbgOut->OutputString, 2, DbgOut, Buffer); } return 0; } INTN EFIAPI _SPrint ( IN VOID *Context, IN CHAR16 *Buffer ) // Append string worker for SPrint, PoolPrint and CatPrint { UINTN len; POOL_PRINT *spc; spc = Context; len = StrLen(Buffer); // // Is the string is over the max truncate it // if (spc->len + len > spc->maxlen) { len = spc->maxlen - spc->len; } // // Append the new text // CopyMem (spc->str + spc->len, Buffer, len * sizeof(CHAR16)); spc->len += len; // // Null terminate it // if (spc->len < spc->maxlen) { spc->str[spc->len] = 0; } else if (spc->maxlen) { spc->str[spc->maxlen] = 0; } return 0; } INTN EFIAPI _PoolPrint ( IN VOID *Context, IN CHAR16 *Buffer ) // Append string worker for PoolPrint and CatPrint { UINTN newlen; POOL_PRINT *spc; spc = Context; newlen = spc->len + StrLen(Buffer) + 1; // // Is the string is over the max, grow the buffer // if (newlen > spc->maxlen) { // // Grow the pool buffer // newlen += PRINT_STRING_LEN; spc->maxlen = newlen; spc->str = ReallocatePool ( spc->str, spc->len * sizeof(CHAR16), spc->maxlen * sizeof(CHAR16) ); if (!spc->str) { spc->len = 0; spc->maxlen = 0; } } // // Append the new text // return _SPrint (Context, Buffer); } VOID _PoolCatPrint ( IN CONST CHAR16 *fmt, IN va_list args, IN OUT POOL_PRINT *spc, IN INTN (EFIAPI *Output)(VOID *context, CHAR16 *str) ) // Dispath function for SPrint, PoolPrint, and CatPrint { PRINT_STATE ps; ZeroMem (&ps, sizeof(ps)); ps.Output = Output; ps.Context = spc; ps.fmt.pw = fmt; va_copy(ps.args, args); _Print (&ps); va_end(ps.args); } UINTN VSPrint ( OUT CHAR16 *Str, IN UINTN StrSize, IN CONST CHAR16 *fmt, va_list args ) /*++ Routine Description: Prints a formatted unicode string to a buffer using a va_list Arguments: Str - Output buffer to print the formatted string into StrSize - Size of Str. String is truncated to this size. A size of 0 means there is no limit fmt - The format string args - va_list Returns: String length returned in buffer --*/ { POOL_PRINT spc; spc.str = Str; spc.maxlen = StrSize / sizeof(CHAR16) - 1; spc.len = 0; _PoolCatPrint (fmt, args, &spc, _SPrint); return spc.len; } UINTN SPrint ( OUT CHAR16 *Str, IN UINTN StrSize, IN CONST CHAR16 *fmt, ... ) /*++ Routine Description: Prints a formatted unicode string to a buffer Arguments: Str - Output buffer to print the formatted string into StrSize - Size of Str. String is truncated to this size. A size of 0 means there is no limit fmt - The format string Returns: String length returned in buffer --*/ { va_list args; UINTN len; va_start (args, fmt); len = VSPrint(Str, StrSize, fmt, args); va_end (args); return len; } CHAR16 * VPoolPrint ( IN CONST CHAR16 *fmt, va_list args ) /*++ Routine Description: Prints a formatted unicode string to allocated pool using va_list argument. The caller must free the resulting buffer. Arguments: fmt - The format string args - The arguments in va_list form Returns: Allocated buffer with the formatted string printed in it. The caller must free the allocated buffer. The buffer allocation is not packed. --*/ { POOL_PRINT spc; ZeroMem (&spc, sizeof(spc)); _PoolCatPrint (fmt, args, &spc, _PoolPrint); return spc.str; } CHAR16 * PoolPrint ( IN CONST CHAR16 *fmt, ... ) /*++ Routine Description: Prints a formatted unicode string to allocated pool. The caller must free the resulting buffer. Arguments: fmt - The format string Returns: Allocated buffer with the formatted string printed in it. The caller must free the allocated buffer. The buffer allocation is not packed. --*/ { va_list args; CHAR16 *pool; va_start (args, fmt); pool = VPoolPrint(fmt, args); va_end (args); return pool; } CHAR16 * CatPrint ( IN OUT POOL_PRINT *Str, IN CONST CHAR16 *fmt, ... ) /*++ Routine Description: Concatenates a formatted unicode string to allocated pool. The caller must free the resulting buffer. Arguments: Str - Tracks the allocated pool, size in use, and amount of pool allocated. fmt - The format string Returns: Allocated buffer with the formatted string printed in it. The caller must free the allocated buffer. The buffer allocation is not packed. --*/ { va_list args; va_start (args, fmt); _PoolCatPrint (fmt, args, Str, _PoolPrint); va_end (args); return Str->str; } UINTN Print ( IN CONST CHAR16 *fmt, ... ) /*++ Routine Description: Prints a formatted unicode string to the default console Arguments: fmt - Format string Returns: Length of string printed to the console --*/ { va_list args; UINTN back; va_start (args, fmt); back = _IPrint ((UINTN) -1, (UINTN) -1, ST->ConOut, fmt, NULL, args); va_end (args); return back; } UINTN VPrint ( IN CONST CHAR16 *fmt, va_list args ) /*++ Routine Description: Prints a formatted unicode string to the default console using a va_list Arguments: fmt - Format string args - va_list Returns: Length of string printed to the console --*/ { return _IPrint ((UINTN) -1, (UINTN) -1, ST->ConOut, fmt, NULL, args); } UINTN PrintAt ( IN UINTN Column, IN UINTN Row, IN CONST CHAR16 *fmt, ... ) /*++ Routine Description: Prints a formatted unicode string to the default console, at the supplied cursor position Arguments: Column, Row - The cursor position to print the string at fmt - Format string Returns: Length of string printed to the console --*/ { va_list args; UINTN back; va_start (args, fmt); back = _IPrint (Column, Row, ST->ConOut, fmt, NULL, args); va_end (args); return back; } UINTN IPrint ( IN SIMPLE_TEXT_OUTPUT_INTERFACE *Out, IN CONST CHAR16 *fmt, ... ) /*++ Routine Description: Prints a formatted unicode string to the specified console Arguments: Out - The console to print the string too fmt - Format string Returns: Length of string printed to the console --*/ { va_list args; UINTN back; va_start (args, fmt); back = _IPrint ((UINTN) -1, (UINTN) -1, Out, fmt, NULL, args); va_end (args); return back; } UINTN IPrintAt ( IN SIMPLE_TEXT_OUTPUT_INTERFACE *Out, IN UINTN Column, IN UINTN Row, IN CONST CHAR16 *fmt, ... ) /*++ Routine Description: Prints a formatted unicode string to the specified console, at the supplied cursor position Arguments: Out - The console to print the string to Column, Row - The cursor position to print the string at fmt - Format string Returns: Length of string printed to the console --*/ { va_list args; UINTN back; va_start (args, fmt); back = _IPrint (Column, Row, Out, fmt, NULL, args); va_end (args); return back; } UINTN _IPrint ( IN UINTN Column, IN UINTN Row, IN SIMPLE_TEXT_OUTPUT_INTERFACE *Out, IN CONST CHAR16 *fmt, IN CONST CHAR8 *fmta, IN va_list args ) // Display string worker for: Print, PrintAt, IPrint, IPrintAt { PRINT_STATE ps; UINTN back; ZeroMem (&ps, sizeof(ps)); ps.Context = Out; ps.Output = (INTN (EFIAPI *)(VOID *, CHAR16 *)) Out->OutputString; ps.SetAttr = (INTN (EFIAPI *)(VOID *, UINTN)) Out->SetAttribute; ps.Attr = Out->Mode->Attribute; back = (ps.Attr >> 4) & 0xF; ps.AttrNorm = EFI_TEXT_ATTR(EFI_LIGHTGRAY, back); ps.AttrHighlight = EFI_TEXT_ATTR(EFI_WHITE, back); ps.AttrError = EFI_TEXT_ATTR(EFI_YELLOW, back); if (fmt) { ps.fmt.pw = fmt; } else { ps.fmt.Ascii = TRUE; ps.fmt.pc = fmta; } va_copy(ps.args, args); if (Column != (UINTN) -1) { uefi_call_wrapper(Out->SetCursorPosition, 3, Out, Column, Row); } back = _Print (&ps); va_end(ps.args); return back; } UINTN APrint ( IN CONST CHAR8 *fmt, ... ) /*++ Routine Description: For those whom really can't deal with unicode, a print function that takes an ascii format string Arguments: fmt - ascii format string Returns: Length of string printed to the console --*/ { va_list args; UINTN back; va_start (args, fmt); back = _IPrint ((UINTN) -1, (UINTN) -1, ST->ConOut, NULL, fmt, args); va_end (args); return back; } STATIC VOID PFLUSH ( IN OUT PRINT_STATE *ps ) { *ps->Pos = 0; if (IsLocalPrint(ps->Output)) ps->Output(ps->Context, ps->Buffer); else uefi_call_wrapper(ps->Output, 2, ps->Context, ps->Buffer); ps->Pos = ps->Buffer; } STATIC VOID PSETATTR ( IN OUT PRINT_STATE *ps, IN UINTN Attr ) { PFLUSH (ps); ps->RestoreAttr = ps->Attr; if (ps->SetAttr) { uefi_call_wrapper(ps->SetAttr, 2, ps->Context, Attr); } ps->Attr = Attr; } STATIC VOID PPUTC ( IN OUT PRINT_STATE *ps, IN CHAR16 c ) { // if this is a newline, add a carraige return if (c == '\n') { PPUTC (ps, '\r'); } *ps->Pos = c; ps->Pos += 1; ps->Len += 1; // if at the end of the buffer, flush it if (ps->Pos >= ps->End) { PFLUSH(ps); } } STATIC CHAR16 PGETC ( IN POINTER *p ) { CHAR16 c; c = p->Ascii ? p->pc[p->Index] : p->pw[p->Index]; p->Index += 1; return c; } STATIC VOID PITEM ( IN OUT PRINT_STATE *ps ) { UINTN Len, i; PRINT_ITEM *Item; CHAR16 c; // Get the length of the item Item = ps->Item; Item->Item.Index = 0; while (Item->Item.Index < Item->FieldWidth) { c = PGETC(&Item->Item); if (!c) { Item->Item.Index -= 1; break; } } Len = Item->Item.Index; // if there is no item field width, use the items width if (Item->FieldWidth == (UINTN) -1) { Item->FieldWidth = Len; } // if item is larger then width, update width if (Len > Item->Width) { Item->Width = Len; } // if pad field before, add pad char if (Item->PadBefore) { for (i=Item->Width; i < Item->FieldWidth; i+=1) { PPUTC (ps, ' '); } } // pad item for (i=Len; i < Item->Width; i++) { PPUTC (ps, Item->Pad); } // add the item Item->Item.Index=0; while (Item->Item.Index < Len) { PPUTC (ps, PGETC(&Item->Item)); } // If pad at the end, add pad char if (!Item->PadBefore) { for (i=Item->Width; i < Item->FieldWidth; i+=1) { PPUTC (ps, ' '); } } } STATIC UINTN _Print ( IN PRINT_STATE *ps ) /*++ Routine Description: %w.lF - w = width l = field width F = format of arg Args F: 0 - pad with zeros - - justify on left (default is on right) , - add comma's to field * - width provided on stack n - Set output attribute to normal (for this field only) h - Set output attribute to highlight (for this field only) e - Set output attribute to error (for this field only) l - Value is 64 bits a - ascii string s - unicode string X - fixed 8 byte value in hex x - hex value d - value as signed decimal u - value as unsigned decimal f - value as floating point c - Unicode char t - EFI time structure g - Pointer to GUID r - EFI status code (result code) N - Set output attribute to normal H - Set output attribute to highlight E - Set output attribute to error % - Print a % Arguments: SystemTable - The system table Returns: Number of charactors written --*/ { CHAR16 c; UINTN Attr; PRINT_ITEM Item; CHAR16 Buffer[PRINT_STRING_LEN]; ps->Len = 0; ps->Buffer = Buffer; ps->Pos = Buffer; ps->End = Buffer + PRINT_STRING_LEN - 1; ps->Item = &Item; ps->fmt.Index = 0; while ((c = PGETC(&ps->fmt))) { if (c != '%') { PPUTC ( ps, c ); continue; } // setup for new item Item.FieldWidth = (UINTN) -1; Item.Width = 0; Item.WidthParse = &Item.Width; Item.Pad = ' '; Item.PadBefore = TRUE; Item.Comma = FALSE; Item.Long = FALSE; Item.Item.Ascii = FALSE; Item.Item.pw = NULL; ps->RestoreAttr = 0; Attr = 0; while ((c = PGETC(&ps->fmt))) { switch (c) { case '%': // // %% -> % // Item.Scratch[0] = '%'; Item.Scratch[1] = 0; Item.Item.pw = Item.Scratch; break; case '0': Item.Pad = '0'; break; case '-': Item.PadBefore = FALSE; break; case ',': Item.Comma = TRUE; break; case '.': Item.WidthParse = &Item.FieldWidth; break; case '*': *Item.WidthParse = va_arg(ps->args, UINTN); break; case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': *Item.WidthParse = 0; do { *Item.WidthParse = *Item.WidthParse * 10 + c - '0'; c = PGETC(&ps->fmt); } while (c >= '0' && c <= '9') ; ps->fmt.Index -= 1; break; case 'a': Item.Item.pc = va_arg(ps->args, CHAR8 *); Item.Item.Ascii = TRUE; if (!Item.Item.pc) { Item.Item.pc = (CHAR8 *)"(null)"; } break; case 's': Item.Item.pw = va_arg(ps->args, CHAR16 *); if (!Item.Item.pw) { Item.Item.pw = L"(null)"; } break; case 'c': Item.Scratch[0] = (CHAR16) va_arg(ps->args, UINTN); Item.Scratch[1] = 0; Item.Item.pw = Item.Scratch; break; case 'l': Item.Long = TRUE; break; case 'X': Item.Width = Item.Long ? 16 : 8; Item.Pad = '0'; case 'x': ValueToHex ( Item.Scratch, Item.Long ? va_arg(ps->args, UINT64) : va_arg(ps->args, UINT32) ); Item.Item.pw = Item.Scratch; break; case 'g': GuidToString (Item.Scratch, va_arg(ps->args, EFI_GUID *)); Item.Item.pw = Item.Scratch; break; case 'u': ValueToString ( Item.Scratch, Item.Comma, Item.Long ? va_arg(ps->args, UINT64) : va_arg(ps->args, UINT32) ); Item.Item.pw = Item.Scratch; break; case 'd': ValueToString ( Item.Scratch, Item.Comma, Item.Long ? va_arg(ps->args, INT64) : va_arg(ps->args, INT32) ); Item.Item.pw = Item.Scratch; break; case 'f': FloatToString ( Item.Scratch, Item.Comma, va_arg(ps->args, double) ); Item.Item.pw = Item.Scratch; break; case 't': TimeToString (Item.Scratch, va_arg(ps->args, EFI_TIME *)); Item.Item.pw = Item.Scratch; break; case 'r': StatusToString (Item.Scratch, va_arg(ps->args, EFI_STATUS)); Item.Item.pw = Item.Scratch; break; case 'n': PSETATTR(ps, ps->AttrNorm); break; case 'h': PSETATTR(ps, ps->AttrHighlight); break; case 'e': PSETATTR(ps, ps->AttrError); break; case 'N': Attr = ps->AttrNorm; break; case 'H': Attr = ps->AttrHighlight; break; case 'E': Attr = ps->AttrError; break; default: Item.Scratch[0] = '?'; Item.Scratch[1] = 0; Item.Item.pw = Item.Scratch; break; } // if we have an Item if (Item.Item.pw) { PITEM (ps); break; } // if we have an Attr set if (Attr) { PSETATTR(ps, Attr); ps->RestoreAttr = 0; break; } } if (ps->RestoreAttr) { PSETATTR(ps, ps->RestoreAttr); } } // Flush buffer PFLUSH (ps); return ps->Len; } STATIC CHAR8 Hex[] = {'0','1','2','3','4','5','6','7', '8','9','A','B','C','D','E','F'}; VOID ValueToHex ( IN CHAR16 *Buffer, IN UINT64 v ) { CHAR8 str[30], *p1; CHAR16 *p2; if (!v) { Buffer[0] = '0'; Buffer[1] = 0; return ; } p1 = str; p2 = Buffer; while (v) { // Without the cast, the MSVC compiler may insert a reference to __allmull *(p1++) = Hex[(UINTN)(v & 0xf)]; v = RShiftU64 (v, 4); } while (p1 != str) { *(p2++) = *(--p1); } *p2 = 0; } VOID ValueToString ( IN CHAR16 *Buffer, IN BOOLEAN Comma, IN INT64 v ) { STATIC CHAR8 ca[] = { 3, 1, 2 }; CHAR8 str[40], *p1; CHAR16 *p2; UINTN c, r; if (!v) { Buffer[0] = '0'; Buffer[1] = 0; return ; } p1 = str; p2 = Buffer; if (v < 0) { *(p2++) = '-'; v = -v; } while (v) { v = (INT64)DivU64x32 ((UINT64)v, 10, &r); *(p1++) = (CHAR8)r + '0'; } c = (Comma ? ca[(p1 - str) % 3] : 999) + 1; while (p1 != str) { c -= 1; if (!c) { *(p2++) = ','; c = 3; } *(p2++) = *(--p1); } *p2 = 0; } VOID FloatToString ( IN CHAR16 *Buffer, IN BOOLEAN Comma, IN double v ) { /* * Integer part. */ INTN i = (INTN)v; ValueToString(Buffer, Comma, i); /* * Decimal point. */ UINTN x = StrLen(Buffer); Buffer[x] = L'.'; x++; /* * Keep fractional part. */ float f = (float)(v - i); if (f < 0) f = -f; /* * Leading fractional zeroes. */ f *= 10.0; while ( (f != 0) && ((INTN)f == 0)) { Buffer[x] = L'0'; x++; f *= 10.0; } /* * Fractional digits. */ while ((float)(INTN)f != f) { f *= 10; } ValueToString(Buffer + x, FALSE, (INTN)f); return; } VOID TimeToString ( OUT CHAR16 *Buffer, IN EFI_TIME *Time ) { UINTN Hour, Year; CHAR16 AmPm; AmPm = 'a'; Hour = Time->Hour; if (Time->Hour == 0) { Hour = 12; } else if (Time->Hour >= 12) { AmPm = 'p'; if (Time->Hour >= 13) { Hour -= 12; } } Year = Time->Year % 100; // bugbug: for now just print it any old way SPrint (Buffer, 0, L"%02d/%02d/%02d %02d:%02d%c", Time->Month, Time->Day, Year, Hour, Time->Minute, AmPm ); } VOID DumpHex ( IN UINTN Indent, IN UINTN Offset, IN UINTN DataSize, IN VOID *UserData ) { CHAR8 *Data, Val[50], Str[20], c; UINTN Size, Index; UINTN ScreenCount; UINTN TempColumn; UINTN ScreenSize; CHAR16 ReturnStr[1]; uefi_call_wrapper(ST->ConOut->QueryMode, 4, ST->ConOut, ST->ConOut->Mode->Mode, &TempColumn, &ScreenSize); ScreenCount = 0; ScreenSize -= 2; Data = UserData; while (DataSize) { Size = 16; if (Size > DataSize) { Size = DataSize; } for (Index=0; Index < Size; Index += 1) { c = Data[Index]; Val[Index*3+0] = Hex[c>>4]; Val[Index*3+1] = Hex[c&0xF]; Val[Index*3+2] = (Index == 7)?'-':' '; Str[Index] = (c < ' ' || c > 'z') ? '.' : c; } Val[Index*3] = 0; Str[Index] = 0; Print (L"%*a%X: %-.48a *%a*\n", Indent, "", Offset, Val, Str); Data += Size; Offset += Size; DataSize -= Size; ScreenCount++; if (ScreenCount >= ScreenSize && ScreenSize != 0) { // // If ScreenSize == 0 we have the console redirected so don't // block updates // ScreenCount = 0; Print (L"Press Enter to continue :"); Input (L"", ReturnStr, sizeof(ReturnStr)/sizeof(CHAR16)); Print (L"\n"); } } }