FizzBuzzAsm_blackfin
Version
% bfin-elf-gcc -v Using built-in specs. Target: bfin-elf コンフィグオプション: /usr/src/packages/BUILD/blackfin-toolchain-08r1.5/../gcc-4.1/configure --build=i686-pc-linux-gnu --host=i686-pc-linux-gnu --target=bfin-elf --prefix=/opt/uClinux/bfin-elf --with-newlib --disable-libstdcxx-pch --enable-languages=c,c++ --disable-symvers --disable-libssp --disable-libffi --enable-clocale=generic --enable-version-specific-runtime-libs --enable-__cxa_atexit スレッドモデル: single gcc バージョン 4.1.2 (ADI svn)
Optimized
fizzbuzz.o: ファイル形式 elf32-bfin セクション .text の逆アセンブル: 00000000 <_main>: 0: 68 05 [--SP] = (R7:5); 2: 00 e8 03 00 LINK 0xc; /* (12) */ 6: 0f 60 R7 = 0x1 (X); /* R7=0x1( 1) */ 8: 46 e1 66 66 R6.H = 0x6666; /* (26214) R6=0x66660000(1717960704) */ c: 06 e1 67 66 R6.L = 0x6667; /* (26215) R6=0x66666667(1717986919) */ 10: 45 e1 55 55 R5.H = 0x5555; /* (21845) R5=0x55550000(1431633920) */ 14: 05 e1 56 55 R5.L = 0x5556; /* (21846) R5=0x55555556(1431655766) */ 18: 07 30 R0 = R7; 1a: 79 60 R1 = 0xf (X); /* R1=0xf( 15) */ 1c: ff e3 f2 ff CALL 0x0 <_main>; 1e: R_pcrel24 ___modsi3 20: 00 0c CC = R0 == 0x0; 22: 08 14 IF !CC JUMP 0x32 <_main+0x32> (BP); 24: 40 e1 00 00 R0.H = 0x0; /* ( 0) R0=0x0 <_main>( 0) */ 26: R_huimm16 .rodata.str1.4 28: 00 e1 00 00 R0.L = 0x0; /* ( 0) R0=0x0 <_main>( 0) */ 2a: R_luimm16 .rodata.str1.4 2c: ff e3 ea ff CALL 0x0 <_main>; 2e: R_pcrel24 _puts 30: 3f 20 JUMP.S 0xae <_main+0xae>; 32: 80 c0 3e 18 A1 = R7.L * R6.L (FU); 36: 83 c6 80 51 A1 = A1 >> 0x10; 3a: 11 c1 3e 86 A1 += R7.H * R6.L (M), A0 = R7.H * R6.H (IS); 3e: 11 c1 37 98 A1 += R6.H * R7.L (M, IS); 42: 83 c6 80 11 A1 = A1 >>> 0x10; 46: 0b c4 00 00 R0 = (A0 += A1); 4a: 08 4d R0 >>>= 0x1; 4c: 82 c6 0f 03 R1 = R7 >>> 0x1f; 50: 08 52 R0 = R0 - R1; 52: 10 32 P2 = R0; 54: 92 5e P2 = P2 + (P2 << 0x2); 56: 42 30 R0 = P2; 58: 07 08 CC = R7 == R0; 5a: 08 14 IF !CC JUMP 0x6a <_main+0x6a> (BP); 5c: 40 e1 00 00 R0.H = 0x0; /* ( 0) R0=0x0 <_main>( 0) */ 5e: R_huimm16 .rodata.str1.4+0xc 60: 00 e1 0c 00 R0.L = 0xc; /* ( 12) R0=0xc( 12) */ 62: R_luimm16 .rodata.str1.4+0xc 64: ff e3 ce ff CALL 0x0 <_main>; 66: R_pcrel24 _puts 68: 23 20 JUMP.S 0xae <_main+0xae>; 6a: 80 c0 3d 18 A1 = R7.L * R5.L (FU); 6e: 83 c6 80 51 A1 = A1 >> 0x10; 72: 11 c1 3d 86 A1 += R7.H * R5.L (M), A0 = R7.H * R5.H (IS); 76: 11 c1 2f 98 A1 += R5.H * R7.L (M, IS); 7a: 83 c6 80 11 A1 = A1 >>> 0x10; 7e: 0b c4 00 02 R1 = (A0 += A1); 82: 82 c6 0f 01 R0 = R7 >>> 0x1f; 86: 41 52 R1 = R1 - R0; 88: 11 32 P2 = R1; 8a: 92 5c P2 = P2 + (P2 << 0x1); 8c: 42 30 R0 = P2; 8e: 07 08 CC = R7 == R0; 90: 08 14 IF !CC JUMP 0xa0 <_main+0xa0> (BP); 92: 40 e1 00 00 R0.H = 0x0; /* ( 0) R0=0xc( 12) */ 94: R_huimm16 .rodata.str1.4+0x14 96: 00 e1 14 00 R0.L = 0x14; /* ( 20) R0=0x14( 20) */ 98: R_luimm16 .rodata.str1.4+0x14 9a: ff e3 b3 ff CALL 0x0 <_main>; 9c: R_pcrel24 _puts 9e: 08 20 JUMP.S 0xae <_main+0xae>; a0: 40 e1 00 00 R0.H = 0x0; /* ( 0) R0=0x14( 20) */ a2: R_huimm16 .rodata.str1.4+0x1c a4: 00 e1 1c 00 R0.L = 0x1c; /* ( 28) R0=0x1c( 28) */ a6: R_luimm16 .rodata.str1.4+0x1c a8: 0f 30 R1 = R7; aa: ff e3 ab ff CALL 0x0 <_main>; ac: R_pcrel24 _printf ae: 0f 64 R7 += 0x1; /* ( 1) */ b0: 20 e1 65 00 R0 = 0x65 (X); /* R0=0x65(101) */ b4: 07 08 CC = R7 == R0; b6: b1 17 IF !CC JUMP 0x18 <_main+0x18> (BP); b8: 01 e8 00 00 UNLINK; bc: 28 05 (R7:5) = [SP++]; be: 10 00 RTS;
Normal
fizzbuzz.o: ファイル形式 elf32-bfin セクション .text の逆アセンブル: 00000000 <_main>: 0: 00 e8 06 00 LINK 0x18; /* (24) */ 4: 08 60 R0 = 0x1 (X); /* R0=0x1( 1) */ 6: f0 bb [FP -0x4] = R0; 8: 64 20 JUMP.S 0xd0 <_main+0xd0>; a: f0 b9 R0 = [FP -0x4]; c: 79 60 R1 = 0xf (X); /* R1=0xf( 15) */ e: ff e3 f9 ff CALL 0x0 <_main>; 10: R_pcrel24 ___modsi3 12: 00 0c CC = R0 == 0x0; 14: 08 10 IF !CC JUMP 0x24 <_main+0x24>; 16: 40 e1 00 00 R0.H = 0x0; /* ( 0) R0=0x1( 1) */ 18: R_huimm16 .rodata 1a: 00 e1 00 00 R0.L = 0x0; /* ( 0) R0=0x0 <_main>( 0) */ 1c: R_luimm16 .rodata 1e: ff e3 f1 ff CALL 0x0 <_main>; 20: R_pcrel24 _puts 22: 54 20 JUMP.S 0xca <_main+0xca>; 24: f1 b9 R1 = [FP -0x4]; 26: 40 e1 66 66 R0.H = 0x6666; /* (26214) R0=0x66660000(1717960704) */ 2a: 00 e1 67 66 R0.L = 0x6667; /* (26215) R0=0x66666667(1717986919) */ 2e: 80 c0 08 18 A1 = R1.L * R0.L (FU); 32: 83 c6 80 51 A1 = A1 >> 0x10; 36: 11 c1 08 86 A1 += R1.H * R0.L (M), A0 = R1.H * R0.H (IS); 3a: 11 c1 01 98 A1 += R0.H * R1.L (M, IS); 3e: 83 c6 80 11 A1 = A1 >>> 0x10; 42: 0b c4 00 00 R0 = (A0 += A1); 46: 82 c6 f8 05 R2 = R0 >>> 0x1; 4a: 82 c6 09 01 R0 = R1 >>> 0x1f; 4e: 82 52 R2 = R2 - R0; 50: d2 bb [FP -0xc] = R2; 52: d0 b9 R0 = [FP -0xc]; 54: 10 4f R0 <<= 0x2; 56: d2 b9 R2 = [FP -0xc]; 58: 10 50 R0 = R0 + R2; 5a: 41 52 R1 = R1 - R0; 5c: d1 bb [FP -0xc] = R1; 5e: d0 b9 R0 = [FP -0xc]; 60: 00 0c CC = R0 == 0x0; 62: 08 10 IF !CC JUMP 0x72 <_main+0x72>; 64: 40 e1 00 00 R0.H = 0x0; /* ( 0) R0=0x6667(26215) */ 66: R_huimm16 .rodata+0xc 68: 00 e1 0c 00 R0.L = 0xc; /* ( 12) R0=0xc( 12) */ 6a: R_luimm16 .rodata+0xc 6c: ff e3 ca ff CALL 0x0 <_main>; 6e: R_pcrel24 _puts 70: 2d 20 JUMP.S 0xca <_main+0xca>; 72: f1 b9 R1 = [FP -0x4]; 74: 40 e1 55 55 R0.H = 0x5555; /* (21845) R0=0x5555000c(1431633932) */ 78: 00 e1 56 55 R0.L = 0x5556; /* (21846) R0=0x55555556(1431655766) */ 7c: 80 c0 08 18 A1 = R1.L * R0.L (FU); 80: 83 c6 80 51 A1 = A1 >> 0x10; 84: 11 c1 08 86 A1 += R1.H * R0.L (M), A0 = R1.H * R0.H (IS); 88: 11 c1 01 98 A1 += R0.H * R1.L (M, IS); 8c: 83 c6 80 11 A1 = A1 >>> 0x10; 90: 0b c4 00 04 R2 = (A0 += A1); 94: 82 c6 09 01 R0 = R1 >>> 0x1f; 98: 82 52 R2 = R2 - R0; 9a: e2 bb [FP -0x8] = R2; 9c: e0 b9 R0 = [FP -0x8]; 9e: 08 4f R0 <<= 0x1; a0: e2 b9 R2 = [FP -0x8]; a2: 10 50 R0 = R0 + R2; a4: 41 52 R1 = R1 - R0; a6: e1 bb [FP -0x8] = R1; a8: e0 b9 R0 = [FP -0x8]; aa: 00 0c CC = R0 == 0x0; ac: 08 10 IF !CC JUMP 0xbc <_main+0xbc>; ae: 40 e1 00 00 R0.H = 0x0; /* ( 0) R0=0x5556(21846) */ b0: R_huimm16 .rodata+0x14 b2: 00 e1 14 00 R0.L = 0x14; /* ( 20) R0=0x14( 20) */ b4: R_luimm16 .rodata+0x14 b6: ff e3 a5 ff CALL 0x0 <_main>; b8: R_pcrel24 _puts ba: 08 20 JUMP.S 0xca <_main+0xca>; bc: 40 e1 00 00 R0.H = 0x0; /* ( 0) R0=0x14( 20) */ be: R_huimm16 .rodata+0x1c c0: 00 e1 1c 00 R0.L = 0x1c; /* ( 28) R0=0x1c( 28) */ c2: R_luimm16 .rodata+0x1c c4: f1 b9 R1 = [FP -0x4]; c6: ff e3 9d ff CALL 0x0 <_main>; c8: R_pcrel24 _printf ca: f0 b9 R0 = [FP -0x4]; cc: 08 64 R0 += 0x1; /* ( 1) */ ce: f0 bb [FP -0x4] = R0; d0: f0 b9 R0 = [FP -0x4]; d2: 21 e1 64 00 R1 = 0x64 (X); /* R1=0x64(100) */ d6: 08 09 CC = R0 <= R1; d8: 99 1b IF CC JUMP 0xa <_main+0xa>; da: 01 e8 00 00 UNLINK; de: 10 00 RTS;
Keyword(s):
References:[FizzBuzzAsm]