fat.lst

au1200下的boot代码

 119:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	int clusterCount;
 120:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 
 121:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	int firstDataSector;
 122:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	int sectorsPerFAT;
 123:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 
 124:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 
 125:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	int rootEntryCount;
 126:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	int directoriesPerSectorCount;
 127:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	int rootDirSectorCount;
 128:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 
 129:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	int rootDirSector;
 130:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 
 131:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	int FATSize;
 132:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	enum FATType type;
 133:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	int dataSectorCount;
 134:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 
 135:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	int rootSector;
 136:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 
 137:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** } fat;
 138:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 
 139:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** #define MAX_CLUSTER_SIZE (512 * 128)
 140:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 
 141:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** typedef struct FatFileHandle
 142:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** {
 143:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	int currentCluster;
 144:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	int byteOffset;
 145:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	int bufferOffset;
 146:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	char buffer[MAX_CLUSTER_SIZE];
 147:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	FATDirEntry info;
 148:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** } FatFileHandle;
 149:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 
 150:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** FatFileHandle fatHandle;
 151:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 
 152:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** void displayFATInfo()
 153:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** {
  93              		.loc 1 153 0
  94              		.frame	$sp,40,$31		# vars= 0, regs= 5/0, args= 16, gp= 0
  95              		.mask	0x800f0000,-8
  96              		.fmask	0x00000000,0
  97              		.set	noreorder
  98              		.set	nomacro
  99              		
 154:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	int i;
 155:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	printf("\n-------------------------------\n");
 100              		.loc 1 155 0
 101 0000 0000043C 		lui	$4,%hi($LC0)
 102              		.loc 1 153 0
 103 0004 D8FFBD27 		addiu	$sp,$sp,-40
 104              	$LCFI0:
 105              		.loc 1 155 0
 106 0008 00008424 		addiu	$4,$4,%lo($LC0)
 107              		.loc 1 153 0
 108 000c 2000BFAF 		sw	$31,32($sp)
 109              	$LCFI1:
 110 0010 1C00B3AF 		sw	$19,28($sp)
 111              	$LCFI2:
 112 0014 1800B2AF 		sw	$18,24($sp)
GAS LISTING /tmp/ccZKkRKo.s 			page 7


 113              	$LCFI3:
 114 0018 1400B1AF 		sw	$17,20($sp)
 115              	$LCFI4:
 116              		.loc 1 153 0
 117              	$LCFI5:
 118              		.loc 1 155 0
 119 001c 0000000C 		jal	printf
 120 0020 1000B0AF 		sw	$16,16($sp)
 121              	
 156:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	printf("FAT Info:\n");
 122              		.loc 1 156 0
 123 0024 0000043C 		lui	$4,%hi($LC1)
 124 0028 0000000C 		jal	printf
 125 002c 00008424 		addiu	$4,$4,%lo($LC1)
 126              	
 157:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	printf("     OEMName: '");
 127              		.loc 1 157 0
 128 0030 0000043C 		lui	$4,%hi($LC2)
 129 0034 00008424 		addiu	$4,$4,%lo($LC2)
 130 0038 0000000C 		jal	printf
 131 003c 0000133C 		lui	$19,%hi(fat)
 132              	
 158:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 		for (i = 0; i < 8; ++i) printf("%c", fat.fbs.BS_OEMName[i]);
 133              		.loc 1 158 0
 134 0040 21800000 		move	$16,$0
 135 0044 0000113C 		lui	$17,%hi($LC3)
 136 0048 00007226 		addiu	$18,$19,%lo(fat)
 137 004c 21101202 		addu	$2,$16,$18
 138              	$L16:
 139 0050 03004580 		lb	$5,3($2)
 140 0054 01001026 		addiu	$16,$16,1
 141 0058 0000000C 		jal	printf
 142 005c 00002426 		addiu	$4,$17,%lo($LC3)
 143              	
 144 0060 0800022A 		slt	$2,$16,8
 145 0064 FAFF4014 		bne	$2,$0,$L16
 146 0068 21101202 		addu	$2,$16,$18
 147              	
 159:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	printf("'\n");
 148              		.loc 1 159 0
 149 006c 0000043C 		lui	$4,%hi($LC4)
 150 0070 0000000C 		jal	printf
 151 0074 00008424 		addiu	$4,$4,%lo($LC4)
 152              	
 160:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 
 161:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	printf("  filesystem: ");
 153              		.loc 1 161 0
 154 0078 0000043C 		lui	$4,%hi($LC5)
 155 007c 0000000C 		jal	printf
 156 0080 00008424 		addiu	$4,$4,%lo($LC5)
 157              	
 162:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	switch(fat.type)
 158              		.loc 1 162 0
 159 0084 3402438E 		lw	$3,564($18)
 160 0088 02000224 		li	$2,2			# 0x2
 161 008c 51006210 		beq	$3,$2,$L8
 162 0090 0300622C 		sltu	$2,$3,3
GAS LISTING /tmp/ccZKkRKo.s 			page 8


 163              	
 164 0094 48004010 		beq	$2,$0,$L10
 165 0098 03000224 		li	$2,3			# 0x3
 166              	
 167 009c 01000224 		li	$2,1			# 0x1
 168 00a0 51006210 		beq	$3,$2,$L7
 169 00a4 00000000 		nop
 170              	
 171              	$L6:
 163:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	{
 164:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 		case FAT12: printf("FAT12"); break;
 165:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 		case FAT16: printf("FAT16"); break;
 166:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 		case FAT32: printf("FAT32"); break;
 167:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	}
 168:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	printf("\n");
 172              		.loc 1 168 0
 173 00a8 0000043C 		lui	$4,%hi($LC9)
 174              	$L15:
 169:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 
 170:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	printf("  sectorSize: %d\n", fat.bytesPerSector);
 175              		.loc 1 170 0
 176 00ac 00007026 		addiu	$16,$19,%lo(fat)
 177              		.loc 1 168 0
 178 00b0 0000000C 		jal	printf
 179 00b4 00008424 		addiu	$4,$4,%lo($LC9)
 180              	
 181              		.loc 1 170 0
 182 00b8 0002058E 		lw	$5,512($16)
 183 00bc 0000043C 		lui	$4,%hi($LC10)
 184 00c0 0000000C 		jal	printf
 185 00c4 00008424 		addiu	$4,$4,%lo($LC10)
 186              	
 171:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	printf(" sectorCount: %d\n", fat.sectorCount);
 187              		.loc 1 171 0
 188 00c8 0802058E 		lw	$5,520($16)
 189 00cc 0000043C 		lui	$4,%hi($LC11)
 190 00d0 0000000C 		jal	printf
 191 00d4 00008424 		addiu	$4,$4,%lo($LC11)
 192              	
 172:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	printf(" clusterSize: %d\n", fat.clusterSize);
 193              		.loc 1 172 0
 194 00d8 1002058E 		lw	$5,528($16)
 195 00dc 0000043C 		lui	$4,%hi($LC12)
 196 00e0 0000000C 		jal	printf
 197 00e4 00008424 		addiu	$4,$4,%lo($LC12)
 198              	
 173:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	printf("  clusterCnt: %d\n", fat.clusterCount);
 199              		.loc 1 173 0
 200 00e8 1402058E 		lw	$5,532($16)
 201 00ec 0000043C 		lui	$4,%hi($LC13)
 202 00f0 0000000C 		jal	printf
 203 00f4 00008424 		addiu	$4,$4,%lo($LC13)
 204              	
 174:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	printf(" BPB_NumFATs: %d\n", fat.fbs.BPB_NumFATs);
 205              		.loc 1 174 0
 206 00f8 10000592 		lbu	$5,16($16)
 207 00fc 0000043C 		lui	$4,%hi($LC14)
GAS LISTING /tmp/ccZKkRKo.s 			page 9


 208 0100 0000000C 		jal	printf
 209 0104 00008424 		addiu	$4,$4,%lo($LC14)
 210              	
 175:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	printf("     fatSize: %d\n", fat.FATSize);
 211              		.loc 1 175 0
 212 0108 3002058E 		lw	$5,560($16)
 213 010c 0000043C 		lui	$4,%hi($LC15)
 214 0110 0000000C 		jal	printf
 215 0114 00008424 		addiu	$4,$4,%lo($LC15)
 216              	
 176:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	printf(" numRootDirE: %d\n", fat.rootEntryCount);
 217              		.loc 1 176 0
 218 0118 2002058E 		lw	$5,544($16)
 219 011c 0000043C 		lui	$4,%hi($LC16)
 220 0120 0000000C 		jal	printf
 221 0124 00008424 		addiu	$4,$4,%lo($LC16)
 222              	
 177:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	printf(" dirEPerSect: %d\n", fat.directoriesPerSectorCount);
 223              		.loc 1 177 0
 224 0128 2402058E 		lw	$5,548($16)
 225 012c 0000043C 		lui	$4,%hi($LC17)
 226 0130 0000000C 		jal	printf
 227 0134 00008424 		addiu	$4,$4,%lo($LC17)
 228              	
 178:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	printf(" sectorsRoot: %d\n", fat.rootDirSectorCount);
 229              		.loc 1 178 0
 230 0138 2802058E 		lw	$5,552($16)
 231 013c 0000043C 		lui	$4,%hi($LC18)
 232 0140 0000000C 		jal	printf
 233 0144 00008424 		addiu	$4,$4,%lo($LC18)
 234              	
 179:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	printf(" ReservedCnt: %d\n", fat.reservedSectorCount);
 235              		.loc 1 179 0
 236 0148 0402058E 		lw	$5,516($16)
 237 014c 0000043C 		lui	$4,%hi($LC19)
 238 0150 0000000C 		jal	printf
 239 0154 00008424 		addiu	$4,$4,%lo($LC19)
 240              	
 180:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	printf("  fstDataSec: %d\n", fat.firstDataSector);
 241              		.loc 1 180 0
 242 0158 1802058E 		lw	$5,536($16)
 243 015c 0000043C 		lui	$4,%hi($LC20)
 244 0160 0000000C 		jal	printf
 245 0164 00008424 		addiu	$4,$4,%lo($LC20)
 246              	
 181:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	printf(" sectPerClus: %d\n", fat.sectorsPerCluster);
 247              		.loc 1 181 0
 248 0168 0C02058E 		lw	$5,524($16)
 249 016c 0000043C 		lui	$4,%hi($LC21)
 250 0170 0000000C 		jal	printf
 251 0174 00008424 		addiu	$4,$4,%lo($LC21)
 252              	
 182:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	printf("    diskSize: %dK\n", (fat.sectorCount * fat.bytesPerSector) >> 10);
 253              		.loc 1 182 0
 254 0178 0002028E 		lw	$2,512($16)
 255 017c 0802058E 		lw	$5,520($16)
 256 0180 0000043C 		lui	$4,%hi($LC22)
GAS LISTING /tmp/ccZKkRKo.s 			page 10


 257 0184 00008424 		addiu	$4,$4,%lo($LC22)
 258 0188 0228A270 		mul	$5,$5,$2
 259 018c 0000000C 		jal	printf
 260 0190 822A0500 		srl	$5,$5,10
 261              	
 183:/mnt/hgfs/boot/booter/source/applications/booter/fat.c **** 	printf("-------------------------------\n");
 262              		.loc 1 183 0
 263 0194 0000043C 		lui	$4,%hi($LC23)
 264 0198 2000BF8F 		lw	$31,32($sp)
 265 019c 1C00B38F 		lw	$19,28($sp)
 266 01a0 1800B28F 		lw	$18,24($sp)
 267 01a4 1400B18F 		lw	$17,20($sp)
 268 01a8 1000B08F 		lw	$16,16($sp)
 269 01ac 00008424 		addiu	$4,$4,%lo($LC23)
 270 01b0 00000008 		j	printf
 271 01b4 2800BD27 		addiu	$sp,$sp,40
 272              	
 273              	$L10:
 274              		.loc 1 162 0
 275 01b8 BBFF6214 		bne	$3,$2,$L6
 276 01bc 00000000 		nop
 277              	
 278              		.loc 1 166 0
 279 01c0 0000043C 		lui	$4,%hi($LC8)
 280 01c4 0000000C 		jal	printf
 281 01c8 00008424 		addiu	$4,$4,%lo($LC8)
 282              	
 283              		.loc 1 168 0
 284 01cc 2B000008 		j	$L15
 285 01d0 0000043C 		lui	$4,%hi($LC9)
 286              	
 287              	$L8:
 288              		.loc 1 165 0
 289 01d4 0000043C 		lui	$4,%hi($LC7)
 290              		.loc 1 166 0
 291 01d8 0000000C 		jal	printf
 292 01dc 00008424 		addiu	$4,$4,%lo($LC7)
 293              	
 294              		.loc 1 168 0
 295 01e0 2B000008 		j	$L15
 296 01e4 0000043C 		lui	$4,%hi($LC9)
 297              	
 298              	$L7:
 299              		.loc 1 164 0
 300 01e8 0000043C 		lui	$4,%hi($LC6)
 301              		.loc 1 166 0
 302 01ec 0000000C 		jal	printf
 303 01f0 00008424 		addiu	$4,$4,%lo($LC6)
 304              	
 305              		.loc 1 168 0
 306 01f4 2B000008 		j	$L15
 307 01f8 0000043C 		lui	$4,%hi($LC9)
 308              	
 309              		.set	macro
 310              		.set	reorder
 311              	$LFE2:
 312              		.end	displayFATInfo
GAS LISTING /tmp/ccZKkRKo.s 			page 11


 313              		.section	.rodata.str1.4