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https://github.com/rvtr/TwlIPL.git
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CARD ROM HEADERとTWL CARD ROM HEADERの両方を表示。ヘッダCRC検査つき。
git-svn-id: file:///Users/lillianskinner/Downloads/platinum/twl/TwlIPL/trunk@2316 b08762b0-b915-fc4b-9d8c-17b2551a87ff
This commit is contained in:
nishikawa_takeshi
parent
60459c6ddd
commit
37bab42cf1
@ -19,23 +19,34 @@
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#include <twl/hw/common/mmap_shared.h>
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#include "DEMO.h"
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#define LABEL_COLOR (GX_RGBA(0, 31, 31, 1))
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#define VALUE_COLOR (GX_RGBA(31, 31, 31, 1))
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#define COLOR_WHITE (GX_RGBA(31, 31, 31, 1))
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#define COLOR_CYAN (GX_RGBA(0, 31, 31, 1))
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#define COLOR_RED (GX_RGBA(31, 0, 0, 1))
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#define COLOR_YELLOW (GX_RGBA(31, 31, 0, 1))
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#define TITLE_COLOR COLOR_YELLOW
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#define LABEL_COLOR COLOR_WHITE
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#define VALUE_COLOR COLOR_WHITE
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#define OK_COLOR COLOR_CYAN
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#define NG_COLOR COLOR_RED
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// CRC計算
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#define CRC16_INIT_VALUE 0xffff
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#define CALC_CRC16_SIZE 0x15e
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static u16 CalcCRC16(u16 start, u8 *data, int size);
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void TwlMain(void)
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{
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ROM_Header *prh;
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ROM_Header *prhTWL, *prhNTR;
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char str[100];
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u16 row = 0;
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u16 shift = 16;
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u16 shift = 8;
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u16 crc;
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OS_Init();
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(void)OS_EnableIrq();
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(void)OS_EnableInterrupts();
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// この固定メモリアドレスにカードROMヘッダがある
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prh = (ROM_Header*)HW_TWL_CARD_ROM_HEADER_BUF;
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DEMOInitCommon();
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DEMOInitVRAM();
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DEMOInitDisplayBitmap();
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@ -45,14 +56,62 @@ void TwlMain(void)
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DEMOSetBitmapGroundColor(DEMO_RGB_CLEAR);
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DEMOStartDisplay();
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DEMOSetBitmapTextColor(GX_RGBA(31, 31, 31, 1));
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DEMODrawText( 8, 0, "Card ROM Header Checker" );
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// カードROMヘッダ: NTR互換用
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prhNTR = (ROM_Header*)HW_CARD_ROM_HEADER;
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DEMOSetBitmapTextColor(COLOR_YELLOW);
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DEMODrawText( 8, row, "Card ROM Header" );
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row += 2 * shift;
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DEMOSetBitmapTextColor(LABEL_COLOR);
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DEMODrawText( 8, row, "Title Name:" );
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MI_CpuClear8( str, 100 );
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MI_CpuCopy8( prhNTR->s.title_name, str, TITLE_NAME_MAX );
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DEMOSetBitmapTextColor(VALUE_COLOR);
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DEMODrawText( 96, row, str );
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row += shift;
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DEMOSetBitmapTextColor(LABEL_COLOR);
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DEMODrawText( 8, row, "Game Code:" );
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MI_CpuClear8( str, 100 );
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MI_CpuCopy8( prhNTR->s.game_code, str, GAME_CODE_MAX );
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DEMOSetBitmapTextColor(VALUE_COLOR);
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DEMODrawText( 96, row, str );
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row += shift;
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DEMOSetBitmapTextColor(LABEL_COLOR);
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DEMODrawText( 8, row, "Header CRC:" );
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DEMOSetBitmapTextColor(VALUE_COLOR);
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DEMODrawText( 96, row, "0x%04x", prhNTR->s.header_crc16 );
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row += shift;
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crc = CalcCRC16( CRC16_INIT_VALUE, (u8*)prhNTR, CALC_CRC16_SIZE );
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if( crc == prhNTR->s.header_crc16 )
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{
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DEMOSetBitmapTextColor(OK_COLOR);
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DEMODrawText( 96, row, "0x%04x OK", crc );
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}
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else
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{
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DEMOSetBitmapTextColor(NG_COLOR);
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DEMODrawText( 96, row, "0x%04x NG", crc );
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}
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row += 3 * shift;
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// この固定メモリアドレスにTWLカードROMヘッダがある
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// これはカードROMヘッダとは異なる
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// カードROMヘッダ: NTR互換のための領域でROMヘッダのNTR互換部分だけがある
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// TWLカードROMヘッダ: NTR互換部分に加えてROMヘッダのTWLで追加された部分もある
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prhTWL = (ROM_Header*)HW_TWL_CARD_ROM_HEADER_BUF;
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DEMOSetBitmapTextColor(COLOR_YELLOW);
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DEMODrawText( 8, row, "TWL Card ROM Header" );
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row += 2 * shift;
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row = 24;
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DEMOSetBitmapTextColor(LABEL_COLOR);
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DEMODrawText( 8, row, "Title Name: " );
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MI_CpuClear8( str, 100 );
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MI_CpuCopy8( prh->s.title_name, str, TITLE_NAME_MAX );
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MI_CpuCopy8( prhTWL->s.title_name, str, TITLE_NAME_MAX );
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DEMOSetBitmapTextColor(VALUE_COLOR);
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DEMODrawText( 96, row, str );
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row += shift;
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@ -60,27 +119,45 @@ void TwlMain(void)
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DEMOSetBitmapTextColor(LABEL_COLOR);
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DEMODrawText( 8, row, "Game Code: " );
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MI_CpuClear8( str, 100 );
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MI_CpuCopy8( prh->s.game_code, str, GAME_CODE_MAX );
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MI_CpuCopy8( prhTWL->s.game_code, str, GAME_CODE_MAX );
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DEMOSetBitmapTextColor(VALUE_COLOR);
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DEMODrawText( 96, row, str );
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row += shift;
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DEMOSetBitmapTextColor(LABEL_COLOR);
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DEMODrawText( 8, row, "TitleID_Hi: " );
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prh = (ROM_Header*)HW_TWL_CARD_ROM_HEADER_BUF;
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prhTWL = (ROM_Header*)HW_TWL_CARD_ROM_HEADER_BUF;
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DEMOSetBitmapTextColor(VALUE_COLOR);
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DEMODrawText( 96, row, "0x%08x", prh->s.titleID_Hi );
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DEMODrawText( 96, row, "0x%08x", prhTWL->s.titleID_Hi );
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row += shift;
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DEMOSetBitmapTextColor(LABEL_COLOR);
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DEMODrawText( 8, row, "TitleID_Lo: " );
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MI_CpuClear8( str, 100 );
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MI_CpuCopy8( prh->s.titleID_Lo, str, 4 );
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MI_CpuCopy8( prhTWL->s.titleID_Lo, str, 4 );
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DEMOSetBitmapTextColor(VALUE_COLOR);
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DEMODrawText( 96, row, str );
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row += shift;
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DEMOSetBitmapTextColor(LABEL_COLOR);
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DEMODrawText( 8, row, "Header CRC:" );
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DEMOSetBitmapTextColor(VALUE_COLOR);
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DEMODrawText( 96, row, "0x%04x", prhTWL->s.header_crc16 );
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row += shift;
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crc = CalcCRC16( CRC16_INIT_VALUE, (u8*)prhTWL, CALC_CRC16_SIZE );
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if( crc == prhTWL->s.header_crc16 )
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{
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DEMOSetBitmapTextColor(OK_COLOR);
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DEMODrawText( 96, row, "0x%04x OK", crc );
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}
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else
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{
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DEMOSetBitmapTextColor(NG_COLOR);
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DEMODrawText( 96, row, "0x%04x NG", crc );
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}
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row += 2 * shift;
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DEMOSetBitmapTextColor(GX_RGBA(31, 31, 31, 1));
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DEMODrawText( 8, row, "End." );
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@ -91,4 +168,40 @@ void TwlMain(void)
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}
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}
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/*---------------------------------------------------------------------------*
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* Math
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*
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* u16 CalcCRC16( u16 start, u8 *data, int size )
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*---------------------------------------------------------------------------*/
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static u16 crc16_table[16] = {
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0x0000, 0xCC01, 0xD801, 0x1400,
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0xF001, 0x3C00, 0x2800, 0xE401,
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0xA001, 0x6C00, 0x7800, 0xB401,
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0x5000, 0x9C01, 0x8801, 0x4400
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};
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static u16 CalcCRC16(u16 start, u8 *data, int size)
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{
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u16 r1;
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u16 total = start;
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while (size-- > 0)
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{
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// 下位4bit
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r1 = crc16_table[total & 0xf];
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total = (u16)((total >> 4) & 0x0fff);
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total = (u16)(total ^ r1 ^ crc16_table[*data & 0xf]);
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// 上位4bit
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r1 = crc16_table[total & 0xf];
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total = (u16)((total >> 4) & 0x0fff);
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total = (u16)(total ^ r1 ^ crc16_table[(*data >> 4) & 0xf]);
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data++;
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}
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return total;
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}
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/*====== End of main.c ======*/
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