Download: isa1.zip
.include "./nios_macros.m"
.data
.asciz "University of Dayton"
table:
.word 21, 37, 18, 14, 42, 11, 19
.text
.global main
.type main, @function
main:
movi r2,10 # a = 10
movi r3,14 # b = 14
sub r4,r3,r2 # c = b - a
movi r6,11 # e = 11
movi r7,6 # f = 6
/* Generate: g = (b + c) - (e + f) */
add r8,r3,r4 # g = (b+c)
add r9,r7,r8 # tmp = (e+f)
sub r8,r8,r9 # g = g - tmp
addi r9,r8,3 # h = g + 3
/* do some logic operations */
and r4,r2,r3 # c = a & b
or r5,r2,r3 # d = a | b
nor r6,r2,r3 # e = ~(a | b)
xor r7,r2,r3 # f = a ^ b
andi r8,r2,0x3f # g = a & 0x3f
end:
br end /* wait here once the program has completed */
.end
#!/bin/sh nios2-elf-gcc isa1.s nios2-elf-size a.out > isa1.size.txt nios2-elf-objdump -dS a.out > isa1.disassemble.txt nios2-elf-objdump -h a.out > isa1.headers.txt nios2-elf-objcopy -S -O binary a.out isa1.bin nios2-elf-nm a.out > isa1.symbols.txt nios2-iss -td:isa1.sim.txt --trace-from=main -f a.out od -Ax -j0x26c -txz isa1.bin > isa1.od.txt mifwrite isa1.bin isa1.mif 30
text data bss dec hex filename
622 948 0 1570 622 a.out
a.out: file format elf32-littlenios2
Sections:
Idx Name Size VMA LMA File off Algn
0 .text 0000026c 00000000 00000000 00000074 2**3
CONTENTS, ALLOC, LOAD, READONLY, CODE
1 .rodata 00000002 0000026c 0000026c 000002e0 2**2
CONTENTS, ALLOC, LOAD, READONLY, DATA
2 .data 000003b0 00000270 00000270 000002e2 2**2
CONTENTS, ALLOC, LOAD, DATA
3 .sdata 00000004 00000620 00000620 00000692 2**2
CONTENTS, ALLOC, LOAD, DATA, SMALL_DATA
4 .sbss 00000000 00000624 00000624 00000696 2**0
CONTENTS, SMALL_DATA
5 .bss 00000000 00000624 00000624 00000696 2**0
ALLOC
6 .comment 00000102 00000000 00000000 00000696 2**0
CONTENTS, READONLY
7 .debug_aranges 000000a0 00000000 00000000 00000798 2**0
CONTENTS, READONLY, DEBUGGING
8 .debug_pubnames 000000d6 00000000 00000000 00000838 2**0
CONTENTS, READONLY, DEBUGGING
9 .debug_info 00001499 00000000 00000000 0000090e 2**0
CONTENTS, READONLY, DEBUGGING
10 .debug_abbrev 000004c2 00000000 00000000 00001da7 2**0
CONTENTS, READONLY, DEBUGGING
11 .debug_line 000008b8 00000000 00000000 00002269 2**0
CONTENTS, READONLY, DEBUGGING
12 .debug_frame 000000e4 00000000 00000000 00002b24 2**2
CONTENTS, READONLY, DEBUGGING
13 .debug_str 00000605 00000000 00000000 00002c08 2**0
CONTENTS, READONLY, DEBUGGING
00000624 A __bss_start 0000023c T __fake_fini 0000006c T __fake_init 00000070 T __start_2 00000624 A _edata 00000624 A _end 00000240 T _exit 0000023c W _fini 00008610 A _gp 00000620 G _impure_ptr 0000006c W _init 00000001 a _nios2_macros_ 00000000 T _start 000000b0 T _zero_bss 00000068 t end 000000bc T exit 000002a4 d impure_data 00000030 T main 000001a0 T memset 07ffff00 A nasys_stack_top 00000285 d table
a.out: file format elf32-littlenios2 Disassembly of section .text: 00000000 <_start>: 0: 06c20034 movhi sp,2048 4: deffc004 addi sp,sp,-256 8: def6303a nor sp,sp,sp c: dec001d4 ori sp,sp,7 10: def6303a nor sp,sp,sp 14: 06800074 movhi gp,1 18: d6a18404 addi gp,gp,-31216 1c: 06000034 movhi et,0 20: c6018904 addi et,et,1572 24: 00800034 movhi r2,0 28: 10801c04 addi r2,r2,112 2c: 1000683a jmp r2 00000030 <main>: 30: 00800284 movi r2,10 34: 00c00384 movi r3,14 38: 1889c83a sub r4,r3,r2 3c: 018002c4 movi r6,11 40: 01c00184 movi r7,6 44: 1911883a add r8,r3,r4 48: 3a13883a add r9,r7,r8 4c: 4251c83a sub r8,r8,r9 50: 424000c4 addi r9,r8,3 54: 10c8703a and r4,r2,r3 58: 10cab03a or r5,r2,r3 5c: 10cc303a nor r6,r2,r3 60: 10cef03a xor r7,r2,r3 64: 12000fcc andi r8,r2,63 00000068 <end>: 68: 003fff06 br 68 <end> 0000006c <__fake_init>: 6c: f800283a ret 00000070 <__start_2>: 70: 01000034 movhi r4,0 74: 21018904 addi r4,r4,1572 78: 01800034 movhi r6,0 7c: 31818904 addi r6,r6,1572 80: deffff04 addi sp,sp,-4 84: 310dc83a sub r6,r6,r4 88: 000b883a mov r5,zero 8c: dfc00015 stw ra,0(sp) 90: 00000b00 call b0 <_zero_bss> 94: 000006c0 call 6c <__fake_init> 98: 0009883a mov r4,zero 9c: 000b883a mov r5,zero a0: 000d883a mov r6,zero a4: 00000300 call 30 <main> a8: 1009883a mov r4,r2 ac: 00000bc0 call bc <exit> 000000b0 <_zero_bss>: b0: 02000034 movhi r8,0 b4: 42006804 addi r8,r8,416 b8: 4000683a jmp r8 000000bc <exit>: bc: d0a00417 ldw r2,-32752(gp) c0: defff804 addi sp,sp,-32 c4: dd800015 stw r22,0(sp) c8: dfc00715 stw ra,28(sp) cc: dc000615 stw r16,24(sp) d0: dc400515 stw r17,20(sp) d4: dc800415 stw r18,16(sp) d8: dcc00315 stw r19,12(sp) dc: dd000215 stw r20,8(sp) e0: dd400115 stw r21,4(sp) e4: 15005217 ldw r20,328(r2) e8: 202d883a mov r22,r4 ec: a0002526 beq r20,zero,184 <exit+0xc8> f0: a0800117 ldw r2,4(r20) f4: a5402204 addi r21,r20,136 f8: 0027883a mov r19,zero fc: 143fffc4 addi r16,r2,-1 100: 8006803a cmplt r3,r16,zero 104: 1800021e bne r3,zero,110 <exit+0x54> 108: 00800044 movi r2,1 10c: 1426983a sll r19,r2,r16 110: 1800191e bne r3,zero,178 <exit+0xbc> 114: 800490ba slli r2,r16,2 118: 1025883a mov r18,r2 11c: 1505883a add r2,r2,r20 120: 14400204 addi r17,r2,8 124: 00000806 br 148 <exit+0x8c> 128: 88800017 ldw r2,0(r17) 12c: 29400017 ldw r5,0(r5) 130: 843fffc4 addi r16,r16,-1 134: 94bfff04 addi r18,r18,-4 138: 103ee83a callr r2 13c: 8c7fff04 addi r17,r17,-4 140: 9827d07a srai r19,r19,1 144: 80000c16 blt r16,zero,178 <exit+0xbc> 148: a8802017 ldw r2,128(r21) 14c: 954b883a add r5,r18,r21 150: b009883a mov r4,r22 154: 14c4703a and r2,r2,r19 158: 103ff31e bne r2,zero,128 <exit+0x6c> 15c: 88800017 ldw r2,0(r17) 160: 843fffc4 addi r16,r16,-1 164: 94bfff04 addi r18,r18,-4 168: 103ee83a callr r2 16c: 8c7fff04 addi r17,r17,-4 170: 9827d07a srai r19,r19,1 174: 803ff40e bge r16,zero,148 <exit+0x8c> 178: a5000017 ldw r20,0(r20) 17c: a03fdc1e bne r20,zero,f0 <exit+0x34> 180: d0a00417 ldw r2,-32752(gp) 184: 10c00f17 ldw r3,60(r2) 188: 1800021e bne r3,zero,194 <exit+0xd8> 18c: b009883a mov r4,r22 190: 00002400 call 240 <_exit> 194: 1009883a mov r4,r2 198: 183ee83a callr r3 19c: 003ffb06 br 18c <exit+0xd0> 000001a0 <memset>: 1a0: 008000c4 movi r2,3 1a4: 29403fcc andi r5,r5,255 1a8: 2007883a mov r3,r4 1ac: 11801a2e bgeu r2,r6,218 <memset+0x78> 1b0: 2084703a and r2,r4,r2 1b4: 1000181e bne r2,zero,218 <memset+0x78> 1b8: 2806923a slli r3,r5,8 1bc: 200f883a mov r7,r4 1c0: 1946b03a or r3,r3,r5 1c4: 1804943a slli r2,r3,16 1c8: 1886b03a or r3,r3,r2 1cc: 008003c4 movi r2,15 1d0: 11800a2e bgeu r2,r6,1fc <memset+0x5c> 1d4: 38c00015 stw r3,0(r7) 1d8: 39c00104 addi r7,r7,4 1dc: 38c00015 stw r3,0(r7) 1e0: 39c00104 addi r7,r7,4 1e4: 38c00015 stw r3,0(r7) 1e8: 39c00104 addi r7,r7,4 1ec: 38c00015 stw r3,0(r7) 1f0: 31bffc04 addi r6,r6,-16 1f4: 39c00104 addi r7,r7,4 1f8: 11bff636 bltu r2,r6,1d4 <memset+0x34> 1fc: 008000c4 movi r2,3 200: 1180042e bgeu r2,r6,214 <memset+0x74> 204: 38c00015 stw r3,0(r7) 208: 31bfff04 addi r6,r6,-4 20c: 39c00104 addi r7,r7,4 210: 11bffc36 bltu r2,r6,204 <memset+0x64> 214: 3807883a mov r3,r7 218: 31bfffc4 addi r6,r6,-1 21c: 00bfffc4 movi r2,-1 220: 30800426 beq r6,r2,234 <memset+0x94> 224: 19400005 stb r5,0(r3) 228: 31bfffc4 addi r6,r6,-1 22c: 18c00044 addi r3,r3,1 230: 30bffc1e bne r6,r2,224 <memset+0x84> 234: 2005883a mov r2,r4 238: f800283a ret 0000023c <__fake_fini>: 23c: f800283a ret 00000240 <_exit>: 240: defffe04 addi sp,sp,-8 244: dc400015 stw r17,0(sp) 248: dfc00115 stw ra,4(sp) 24c: 2023883a mov r17,r4 250: 000023c0 call 23c <__fake_fini> 254: 8805883a mov r2,r17 258: 003fff06 br 258 <_exit+0x18> 25c: dfc00117 ldw ra,4(sp) 260: dc400017 ldw r17,0(sp) 264: dec00204 addi sp,sp,8 268: f800283a ret
00026c 00000043 76696e55 69737265 6f207974 >C...University o< 00027c 61442066 6e6f7479 00000000 00000015 >f Dayton........< 00028c 00000025 00000012 0000000e 0000002a >%...........*...< 00029c 0000000b 00000013 00000000 0000050c >................< 0002ac 00000568 000005c4 00000000 00000000 >h...............< 0002bc 00000000 00000000 00000000 00000000 >................< 0002cc 00000000 00000000 00000000 0000026c >............l...< 0002dc 00000000 00000000 00000000 00000000 >................< * 00033c 00000000 00000000 00000000 00000001 >................< 00034c 00000000 abcd330e e66d1234 0005deec >.....3..4.m.....< 00035c 0000000b 00000000 00000000 00000000 >................< 00036c 00000000 00000000 00000000 00000000 >................< * 00061c 00000000 000002a4 >........< 000624
0x00000030 <main>: 0x00800284 movi r2, 10 [dstData=0xa dstReg=r2] 0x00000034 <main+0x4>: 0x00c00384 movi r3, 14 [dstData=0xe dstReg=r3] 0x00000038 <main+0x8>: 0x1889c83a sub r4, r3, r2 [dstData=0x4 dstReg=r4] 0x0000003c <main+0xc>: 0x018002c4 movi r6, 11 [dstData=0xb dstReg=r6] 0x00000040 <main+0x10>: 0x01c00184 movi r7, 6 [dstData=0x6 dstReg=r7] 0x00000044 <main+0x14>: 0x1911883a add r8, r3, r4 [dstData=0x12 dstReg=r8] 0x00000048 <main+0x18>: 0x3a13883a add r9, r7, r8 [dstData=0x18 dstReg=r9] 0x0000004c <main+0x1c>: 0x4251c83a sub r8, r8, r9 [dstData=0xfffffffa dstReg=r8] 0x00000050 <main+0x20>: 0x424000c4 addi r9, r8, 3 [dstData=0xfffffffd dstReg=r9] 0x00000054 <main+0x24>: 0x10c8703a and r4, r2, r3 [dstData=0xa dstReg=r4] 0x00000058 <main+0x28>: 0x10cab03a or r5, r2, r3 [dstData=0xe dstReg=r5] 0x0000005c <main+0x2c>: 0x10cc303a nor r6, r2, r3 [dstData=0xfffffff1 dstReg=r6] 0x00000060 <main+0x30>: 0x10cef03a xor r7, r2, r3 [dstData=0x4 dstReg=r7] 0x00000064 <main+0x34>: 0x12000fcc andi r8, r2, 63 [dstData=0xa dstReg=r8] 0x00000068 <end>: 0x003fff06 br 0x68 <end>
Maintained by John Loomis, last updated Tue Jul 10 15:47:35 2007