found some very strange behavior with sb1250.
Gcc 3.2.3 with sibyte mods. Running Linux 2.4.21 with whatever
mods off sibyte.
Testcase:
sending a large amount of traffic
-->eth0-->someprocessing-->eth1
given the nature of processing, say i was getting 100Kpps throughput.
Now i fire a very basic program that has just loops and forever
sums up two numbers.
---
1 #include <stdlib.h>
2
3 int main ()
4 {
5 int a = 1;
6 int b = 2;
7 int c = 0;
8 // int c;
9 while (1) {
10 c = a + b;
11 }
12 }
--------
I see very little drop in throughput - probably around 0.01%.
Now comment line 7 then uncomment line 8. Hallelujah.
Perfomance drops to about 100pps. Thats about a factor of 1000 down!
Interesting thing is if you add a nop (__asm__ __volatile__("nop");)
in the second version just before the while loop, we get back the same
performance as in the earlier version.
Apologies in advance for attaching objdumps (since there maybe folks who
dont have access to the sibyte tools)
1) while-init-dis is for case 1 where c is initialized
2) while-noinit-dis is for case 2 where c is not initialize
3) while-nop-dis is for case 3 when you have nop thrown in.
cheers,
jamal
while-init: file format elf32-tradbigmips
Disassembly of section .init:
004003f0 <_init>:
4003f0: 3c1c0fc0 lui gp,0xfc0
4003f4: 279c7c40 addiu gp,gp,31808
4003f8: 0399e021 addu gp,gp,t9
4003fc: 27bdffe0 addiu sp,sp,-32
400400: afbc0010 sw gp,16(sp)
400404: afbf001c sw ra,28(sp)
400408: afbc0018 sw gp,24(sp)
40040c: 8f998018 lw t9,-32744(gp)
400410: 00000000 nop
400414: 27390500 addiu t9,t9,1280
...
400420: 0320f809 jalr t9
400424: 00000000 nop
400428: 8fbc0010 lw gp,16(sp)
40042c: 00000000 nop
400430: 8f998018 lw t9,-32744(gp)
400434: 00000000 nop
400438: 2739063c addiu t9,t9,1596
40043c: 00000000 nop
400440: 0320f809 jalr t9
400444: 00000000 nop
400448: 8fbc0010 lw gp,16(sp)
40044c: 00000000 nop
400450: 8f998018 lw t9,-32744(gp)
400454: 00000000 nop
400458: 27390720 addiu t9,t9,1824
40045c: 00000000 nop
400460: 0320f809 jalr t9
400464: 00000000 nop
400468: 8fbc0010 lw gp,16(sp)
40046c: 00000000 nop
400470: 8fbf001c lw ra,28(sp)
400474: 00000000 nop
400478: 03e00008 jr ra
40047c: 27bd0020 addiu sp,sp,32
Disassembly of section .text:
00400480 <__start>:
400480: 04100001 bltzal zero,400488 <__start+0x8>
400484: 00000000 nop
400488: 3c1c0fc0 lui gp,0xfc0
40048c: 279c7ba8 addiu gp,gp,31656
400490: 039fe021 addu gp,gp,ra
400494: 0000f821 move ra,zero
400498: 8f84803c lw a0,-32708(gp)
40049c: 8fa50000 lw a1,0(sp)
4004a0: 27a60004 addiu a2,sp,4
4004a4: 3c01ffff lui at,0xffff
4004a8: 3421fff8 ori at,at,0xfff8
4004ac: 03a1e824 and sp,sp,at
4004b0: 27bdffe0 addiu sp,sp,-32
4004b4: 8f878040 lw a3,-32704(gp)
4004b8: 8f888034 lw t0,-32716(gp)
4004bc: 00000000 nop
4004c0: afa80010 sw t0,16(sp)
4004c4: afa20014 sw v0,20(sp)
4004c8: afbd0018 sw sp,24(sp)
4004cc: 8f998038 lw t9,-32712(gp)
4004d0: 00000000 nop
4004d4: 0320f809 jalr t9
4004d8: 00000000 nop
004004dc <hlt>:
4004dc: 1000ffff b 4004dc <hlt>
4004e0: 00000000 nop
...
00400500 <call_gmon_start>:
400500: 3c1c0fc0 lui gp,0xfc0
400504: 279c7b30 addiu gp,gp,31536
400508: 0399e021 addu gp,gp,t9
40050c: 27bdffe0 addiu sp,sp,-32
400510: afbc0010 sw gp,16(sp)
400514: afbf001c sw ra,28(sp)
400518: 8f82802c lw v0,-32724(gp)
40051c: 00000000 nop
400520: 10400006 beqz v0,40053c <call_gmon_start+0x3c>
400524: afbc0018 sw gp,24(sp)
400528: 0040c821 move t9,v0
40052c: 00000000 nop
400530: 0320f809 jalr t9
400534: 00000000 nop
400538: 8fbc0010 lw gp,16(sp)
40053c: 8fbf001c lw ra,28(sp)
...
400548: 03e00008 jr ra
40054c: 27bd0020 addiu sp,sp,32
00400550 <__do_global_dtors_aux>:
400550: 3c1c0fc0 lui gp,0xfc0
400554: 279c7ae0 addiu gp,gp,31456
400558: 0399e021 addu gp,gp,t9
40055c: 27bdffe0 addiu sp,sp,-32
400560: afbc0010 sw gp,16(sp)
400564: 8f82801c lw v0,-32740(gp)
400568: 00000000 nop
40056c: 24420080 addiu v0,v0,128
400570: 90420000 lbu v0,0(v0)
400574: afbf001c sw ra,28(sp)
400578: 14400021 bnez v0,400600 <__do_global_dtors_aux+0xb0>
40057c: afbc0018 sw gp,24(sp)
400580: 8f82801c lw v0,-32740(gp)
400584: 00000000 nop
400588: 24420014 addiu v0,v0,20
40058c: 8c420000 lw v0,0(v0)
400590: 00000000 nop
400594: 8c430000 lw v1,0(v0)
400598: 00000000 nop
40059c: 10600013 beqz v1,4005ec <__do_global_dtors_aux+0x9c>
4005a0: 24420004 addiu v0,v0,4
4005a4: 8f81801c lw at,-32740(gp)
4005a8: 00000000 nop
4005ac: 24210014 addiu at,at,20
4005b0: ac220000 sw v0,0(at)
4005b4: 0060c821 move t9,v1
4005b8: 0320f809 jalr t9
4005bc: 00000000 nop
4005c0: 8fbc0010 lw gp,16(sp)
4005c4: 00000000 nop
4005c8: 8f82801c lw v0,-32740(gp)
4005cc: 00000000 nop
4005d0: 24420014 addiu v0,v0,20
4005d4: 8c420000 lw v0,0(v0)
4005d8: 00000000 nop
4005dc: 8c430000 lw v1,0(v0)
4005e0: 00000000 nop
4005e4: 1460ffef bnez v1,4005a4 <__do_global_dtors_aux+0x54>
4005e8: 24420004 addiu v0,v0,4
4005ec: 24020001 li v0,1
4005f0: 8f81801c lw at,-32740(gp)
4005f4: 00000000 nop
4005f8: 24210080 addiu at,at,128
4005fc: a0220000 sb v0,0(at)
400600: 8fbf001c lw ra,28(sp)
400604: 00000000 nop
400608: 03e00008 jr ra
40060c: 27bd0020 addiu sp,sp,32
00400610 <call___do_global_dtors_aux>:
400610: 3c1c0fc0 lui gp,0xfc0
400614: 279c7a20 addiu gp,gp,31264
400618: 0399e021 addu gp,gp,t9
40061c: 27bdffe0 addiu sp,sp,-32
400620: afbc0010 sw gp,16(sp)
400624: afbf001c sw ra,28(sp)
400628: afbc0018 sw gp,24(sp)
40062c: 8fbf001c lw ra,28(sp)
400630: 00000000 nop
400634: 03e00008 jr ra
400638: 27bd0020 addiu sp,sp,32
0040063c <frame_dummy>:
40063c: 3c1c0fc0 lui gp,0xfc0
400640: 279c79f4 addiu gp,gp,31220
400644: 0399e021 addu gp,gp,t9
400648: 27bdffe0 addiu sp,sp,-32
40064c: afbc0010 sw gp,16(sp)
400650: afbf001c sw ra,28(sp)
400654: 8f84801c lw a0,-32740(gp)
400658: 00000000 nop
40065c: 24840038 addiu a0,a0,56
400660: 8f838030 lw v1,-32720(gp)
400664: afbc0018 sw gp,24(sp)
400668: 8c820000 lw v0,0(a0)
40066c: 00000000 nop
400670: 10400007 beqz v0,400690 <frame_dummy+0x54>
400674: 00000000 nop
400678: 10600005 beqz v1,400690 <frame_dummy+0x54>
40067c: 00000000 nop
400680: 0060c821 move t9,v1
400684: 0320f809 jalr t9
400688: 00000000 nop
40068c: 8fbc0010 lw gp,16(sp)
400690: 8fbf001c lw ra,28(sp)
400694: 00000000 nop
400698: 03e00008 jr ra
40069c: 27bd0020 addiu sp,sp,32
004006a0 <call_frame_dummy>:
4006a0: 3c1c0fc0 lui gp,0xfc0
4006a4: 279c7990 addiu gp,gp,31120
4006a8: 0399e021 addu gp,gp,t9
4006ac: 27bdffe0 addiu sp,sp,-32
4006b0: afbc0010 sw gp,16(sp)
4006b4: afbf001c sw ra,28(sp)
4006b8: afbc0018 sw gp,24(sp)
4006bc: 8fbf001c lw ra,28(sp)
4006c0: 00000000 nop
4006c4: 03e00008 jr ra
4006c8: 27bd0020 addiu sp,sp,32
4006cc: 00000000 nop
004006d0 <main>:
4006d0: 3c1c0fc0 lui gp,0xfc0
4006d4: 279c7960 addiu gp,gp,31072
4006d8: 0399e021 addu gp,gp,t9
4006dc: 27bdffe0 addiu sp,sp,-32
4006e0: afbc0000 sw gp,0(sp)
4006e4: afbe001c sw s8,28(sp)
4006e8: afbc0018 sw gp,24(sp)
4006ec: 03a0f021 move s8,sp
4006f0: 24020001 li v0,1
4006f4: afc20008 sw v0,8(s8)
4006f8: 24020002 li v0,2
4006fc: afc2000c sw v0,12(s8)
400700: afc00010 sw zero,16(s8)
400704: 8fc20008 lw v0,8(s8)
400708: 8fc3000c lw v1,12(s8)
40070c: 00000000 nop
400710: 00431021 addu v0,v0,v1
400714: 1000fffb b 400704 <main+0x34>
400718: afc20010 sw v0,16(s8)
40071c: 00000000 nop
00400720 <__do_global_ctors_aux>:
400720: 3c1c0fc0 lui gp,0xfc0
400724: 279c7910 addiu gp,gp,30992
400728: 0399e021 addu gp,gp,t9
40072c: 27bdffd8 addiu sp,sp,-40
400730: afbc0010 sw gp,16(sp)
400734: afb00018 sw s0,24(sp)
400738: 8f82801c lw v0,-32740(gp)
40073c: 00000000 nop
400740: 2442002c addiu v0,v0,44
400744: 2403ffff li v1,-1
400748: afbf0024 sw ra,36(sp)
40074c: afbc0020 sw gp,32(sp)
400750: afb1001c sw s1,28(sp)
400754: 8c44fffc lw a0,-4(v0)
400758: 00000000 nop
40075c: 1083000f beq a0,v1,40079c <__do_global_ctors_aux+0x7c>
400760: 2450fffc addiu s0,v0,-4
400764: 8f83801c lw v1,-32740(gp)
400768: 00000000 nop
40076c: 2463002c addiu v1,v1,44
400770: 8c63fffc lw v1,-4(v1)
400774: 2411ffff li s1,-1
400778: 2610fffc addiu s0,s0,-4
40077c: 0060c821 move t9,v1
400780: 0320f809 jalr t9
400784: 00000000 nop
400788: 8fbc0010 lw gp,16(sp)
40078c: 8e020000 lw v0,0(s0)
400790: 00000000 nop
400794: 1451fff8 bne v0,s1,400778 <__do_global_ctors_aux+0x58>
400798: 00401821 move v1,v0
40079c: 8fbf0024 lw ra,36(sp)
4007a0: 8fb1001c lw s1,28(sp)
4007a4: 8fb00018 lw s0,24(sp)
4007a8: 03e00008 jr ra
4007ac: 27bd0028 addiu sp,sp,40
004007b0 <call___do_global_ctors_aux>:
4007b0: 3c1c0fc0 lui gp,0xfc0
4007b4: 279c7880 addiu gp,gp,30848
4007b8: 0399e021 addu gp,gp,t9
4007bc: 27bdffe0 addiu sp,sp,-32
4007c0: afbc0010 sw gp,16(sp)
4007c4: afbf001c sw ra,28(sp)
4007c8: afbc0018 sw gp,24(sp)
4007cc: 8fbf001c lw ra,28(sp)
4007d0: 00000000 nop
4007d4: 03e00008 jr ra
4007d8: 27bd0020 addiu sp,sp,32
4007dc: 00000000 nop
Disassembly of section .fini:
004007e0 <_fini>:
4007e0: 3c1c0fc0 lui gp,0xfc0
4007e4: 279c7850 addiu gp,gp,30800
4007e8: 0399e021 addu gp,gp,t9
4007ec: 27bdffe0 addiu sp,sp,-32
4007f0: afbc0010 sw gp,16(sp)
4007f4: afbf001c sw ra,28(sp)
4007f8: afbc0018 sw gp,24(sp)
4007fc: 00000000 nop
400800: 8f998018 lw t9,-32744(gp)
400804: 00000000 nop
400808: 27390550 addiu t9,t9,1360
40080c: 00000000 nop
400810: 0320f809 jalr t9
400814: 00000000 nop
400818: 8fbc0010 lw gp,16(sp)
40081c: 00000000 nop
400820: 8fbf001c lw ra,28(sp)
400824: 00000000 nop
400828: 03e00008 jr ra
40082c: 27bd0020 addiu sp,sp,32
while-noinit: file format elf32-tradbigmips
Disassembly of section .init:
004003f0 <_init>:
4003f0: 3c1c0fc0 lui gp,0xfc0
4003f4: 279c7c40 addiu gp,gp,31808
4003f8: 0399e021 addu gp,gp,t9
4003fc: 27bdffe0 addiu sp,sp,-32
400400: afbc0010 sw gp,16(sp)
400404: afbf001c sw ra,28(sp)
400408: afbc0018 sw gp,24(sp)
40040c: 8f998018 lw t9,-32744(gp)
400410: 00000000 nop
400414: 27390500 addiu t9,t9,1280
...
400420: 0320f809 jalr t9
400424: 00000000 nop
400428: 8fbc0010 lw gp,16(sp)
40042c: 00000000 nop
400430: 8f998018 lw t9,-32744(gp)
400434: 00000000 nop
400438: 2739063c addiu t9,t9,1596
40043c: 00000000 nop
400440: 0320f809 jalr t9
400444: 00000000 nop
400448: 8fbc0010 lw gp,16(sp)
40044c: 00000000 nop
400450: 8f998018 lw t9,-32744(gp)
400454: 00000000 nop
400458: 27390720 addiu t9,t9,1824
40045c: 00000000 nop
400460: 0320f809 jalr t9
400464: 00000000 nop
400468: 8fbc0010 lw gp,16(sp)
40046c: 00000000 nop
400470: 8fbf001c lw ra,28(sp)
400474: 00000000 nop
400478: 03e00008 jr ra
40047c: 27bd0020 addiu sp,sp,32
Disassembly of section .text:
00400480 <__start>:
400480: 04100001 bltzal zero,400488 <__start+0x8>
400484: 00000000 nop
400488: 3c1c0fc0 lui gp,0xfc0
40048c: 279c7ba8 addiu gp,gp,31656
400490: 039fe021 addu gp,gp,ra
400494: 0000f821 move ra,zero
400498: 8f84803c lw a0,-32708(gp)
40049c: 8fa50000 lw a1,0(sp)
4004a0: 27a60004 addiu a2,sp,4
4004a4: 3c01ffff lui at,0xffff
4004a8: 3421fff8 ori at,at,0xfff8
4004ac: 03a1e824 and sp,sp,at
4004b0: 27bdffe0 addiu sp,sp,-32
4004b4: 8f878040 lw a3,-32704(gp)
4004b8: 8f888034 lw t0,-32716(gp)
4004bc: 00000000 nop
4004c0: afa80010 sw t0,16(sp)
4004c4: afa20014 sw v0,20(sp)
4004c8: afbd0018 sw sp,24(sp)
4004cc: 8f998038 lw t9,-32712(gp)
4004d0: 00000000 nop
4004d4: 0320f809 jalr t9
4004d8: 00000000 nop
004004dc <hlt>:
4004dc: 1000ffff b 4004dc <hlt>
4004e0: 00000000 nop
...
00400500 <call_gmon_start>:
400500: 3c1c0fc0 lui gp,0xfc0
400504: 279c7b30 addiu gp,gp,31536
400508: 0399e021 addu gp,gp,t9
40050c: 27bdffe0 addiu sp,sp,-32
400510: afbc0010 sw gp,16(sp)
400514: afbf001c sw ra,28(sp)
400518: 8f82802c lw v0,-32724(gp)
40051c: 00000000 nop
400520: 10400006 beqz v0,40053c <call_gmon_start+0x3c>
400524: afbc0018 sw gp,24(sp)
400528: 0040c821 move t9,v0
40052c: 00000000 nop
400530: 0320f809 jalr t9
400534: 00000000 nop
400538: 8fbc0010 lw gp,16(sp)
40053c: 8fbf001c lw ra,28(sp)
...
400548: 03e00008 jr ra
40054c: 27bd0020 addiu sp,sp,32
00400550 <__do_global_dtors_aux>:
400550: 3c1c0fc0 lui gp,0xfc0
400554: 279c7ae0 addiu gp,gp,31456
400558: 0399e021 addu gp,gp,t9
40055c: 27bdffe0 addiu sp,sp,-32
400560: afbc0010 sw gp,16(sp)
400564: 8f82801c lw v0,-32740(gp)
400568: 00000000 nop
40056c: 24420080 addiu v0,v0,128
400570: 90420000 lbu v0,0(v0)
400574: afbf001c sw ra,28(sp)
400578: 14400021 bnez v0,400600 <__do_global_dtors_aux+0xb0>
40057c: afbc0018 sw gp,24(sp)
400580: 8f82801c lw v0,-32740(gp)
400584: 00000000 nop
400588: 24420014 addiu v0,v0,20
40058c: 8c420000 lw v0,0(v0)
400590: 00000000 nop
400594: 8c430000 lw v1,0(v0)
400598: 00000000 nop
40059c: 10600013 beqz v1,4005ec <__do_global_dtors_aux+0x9c>
4005a0: 24420004 addiu v0,v0,4
4005a4: 8f81801c lw at,-32740(gp)
4005a8: 00000000 nop
4005ac: 24210014 addiu at,at,20
4005b0: ac220000 sw v0,0(at)
4005b4: 0060c821 move t9,v1
4005b8: 0320f809 jalr t9
4005bc: 00000000 nop
4005c0: 8fbc0010 lw gp,16(sp)
4005c4: 00000000 nop
4005c8: 8f82801c lw v0,-32740(gp)
4005cc: 00000000 nop
4005d0: 24420014 addiu v0,v0,20
4005d4: 8c420000 lw v0,0(v0)
4005d8: 00000000 nop
4005dc: 8c430000 lw v1,0(v0)
4005e0: 00000000 nop
4005e4: 1460ffef bnez v1,4005a4 <__do_global_dtors_aux+0x54>
4005e8: 24420004 addiu v0,v0,4
4005ec: 24020001 li v0,1
4005f0: 8f81801c lw at,-32740(gp)
4005f4: 00000000 nop
4005f8: 24210080 addiu at,at,128
4005fc: a0220000 sb v0,0(at)
400600: 8fbf001c lw ra,28(sp)
400604: 00000000 nop
400608: 03e00008 jr ra
40060c: 27bd0020 addiu sp,sp,32
00400610 <call___do_global_dtors_aux>:
400610: 3c1c0fc0 lui gp,0xfc0
400614: 279c7a20 addiu gp,gp,31264
400618: 0399e021 addu gp,gp,t9
40061c: 27bdffe0 addiu sp,sp,-32
400620: afbc0010 sw gp,16(sp)
400624: afbf001c sw ra,28(sp)
400628: afbc0018 sw gp,24(sp)
40062c: 8fbf001c lw ra,28(sp)
400630: 00000000 nop
400634: 03e00008 jr ra
400638: 27bd0020 addiu sp,sp,32
0040063c <frame_dummy>:
40063c: 3c1c0fc0 lui gp,0xfc0
400640: 279c79f4 addiu gp,gp,31220
400644: 0399e021 addu gp,gp,t9
400648: 27bdffe0 addiu sp,sp,-32
40064c: afbc0010 sw gp,16(sp)
400650: afbf001c sw ra,28(sp)
400654: 8f84801c lw a0,-32740(gp)
400658: 00000000 nop
40065c: 24840038 addiu a0,a0,56
400660: 8f838030 lw v1,-32720(gp)
400664: afbc0018 sw gp,24(sp)
400668: 8c820000 lw v0,0(a0)
40066c: 00000000 nop
400670: 10400007 beqz v0,400690 <frame_dummy+0x54>
400674: 00000000 nop
400678: 10600005 beqz v1,400690 <frame_dummy+0x54>
40067c: 00000000 nop
400680: 0060c821 move t9,v1
400684: 0320f809 jalr t9
400688: 00000000 nop
40068c: 8fbc0010 lw gp,16(sp)
400690: 8fbf001c lw ra,28(sp)
400694: 00000000 nop
400698: 03e00008 jr ra
40069c: 27bd0020 addiu sp,sp,32
004006a0 <call_frame_dummy>:
4006a0: 3c1c0fc0 lui gp,0xfc0
4006a4: 279c7990 addiu gp,gp,31120
4006a8: 0399e021 addu gp,gp,t9
4006ac: 27bdffe0 addiu sp,sp,-32
4006b0: afbc0010 sw gp,16(sp)
4006b4: afbf001c sw ra,28(sp)
4006b8: afbc0018 sw gp,24(sp)
4006bc: 8fbf001c lw ra,28(sp)
4006c0: 00000000 nop
4006c4: 03e00008 jr ra
4006c8: 27bd0020 addiu sp,sp,32
4006cc: 00000000 nop
004006d0 <main>:
4006d0: 3c1c0fc0 lui gp,0xfc0
4006d4: 279c7960 addiu gp,gp,31072
4006d8: 0399e021 addu gp,gp,t9
4006dc: 27bdffe0 addiu sp,sp,-32
4006e0: afbc0000 sw gp,0(sp)
4006e4: afbe001c sw s8,28(sp)
4006e8: afbc0018 sw gp,24(sp)
4006ec: 03a0f021 move s8,sp
4006f0: 24020001 li v0,1
4006f4: afc20008 sw v0,8(s8)
4006f8: 24020002 li v0,2
4006fc: afc2000c sw v0,12(s8)
400700: 8fc20008 lw v0,8(s8)
400704: 8fc3000c lw v1,12(s8)
400708: 00000000 nop
40070c: 00431021 addu v0,v0,v1
400710: 1000fffb b 400700 <main+0x30>
400714: afc20010 sw v0,16(s8)
...
00400720 <__do_global_ctors_aux>:
400720: 3c1c0fc0 lui gp,0xfc0
400724: 279c7910 addiu gp,gp,30992
400728: 0399e021 addu gp,gp,t9
40072c: 27bdffd8 addiu sp,sp,-40
400730: afbc0010 sw gp,16(sp)
400734: afb00018 sw s0,24(sp)
400738: 8f82801c lw v0,-32740(gp)
40073c: 00000000 nop
400740: 2442002c addiu v0,v0,44
400744: 2403ffff li v1,-1
400748: afbf0024 sw ra,36(sp)
40074c: afbc0020 sw gp,32(sp)
400750: afb1001c sw s1,28(sp)
400754: 8c44fffc lw a0,-4(v0)
400758: 00000000 nop
40075c: 1083000f beq a0,v1,40079c <__do_global_ctors_aux+0x7c>
400760: 2450fffc addiu s0,v0,-4
400764: 8f83801c lw v1,-32740(gp)
400768: 00000000 nop
40076c: 2463002c addiu v1,v1,44
400770: 8c63fffc lw v1,-4(v1)
400774: 2411ffff li s1,-1
400778: 2610fffc addiu s0,s0,-4
40077c: 0060c821 move t9,v1
400780: 0320f809 jalr t9
400784: 00000000 nop
400788: 8fbc0010 lw gp,16(sp)
40078c: 8e020000 lw v0,0(s0)
400790: 00000000 nop
400794: 1451fff8 bne v0,s1,400778 <__do_global_ctors_aux+0x58>
400798: 00401821 move v1,v0
40079c: 8fbf0024 lw ra,36(sp)
4007a0: 8fb1001c lw s1,28(sp)
4007a4: 8fb00018 lw s0,24(sp)
4007a8: 03e00008 jr ra
4007ac: 27bd0028 addiu sp,sp,40
004007b0 <call___do_global_ctors_aux>:
4007b0: 3c1c0fc0 lui gp,0xfc0
4007b4: 279c7880 addiu gp,gp,30848
4007b8: 0399e021 addu gp,gp,t9
4007bc: 27bdffe0 addiu sp,sp,-32
4007c0: afbc0010 sw gp,16(sp)
4007c4: afbf001c sw ra,28(sp)
4007c8: afbc0018 sw gp,24(sp)
4007cc: 8fbf001c lw ra,28(sp)
4007d0: 00000000 nop
4007d4: 03e00008 jr ra
4007d8: 27bd0020 addiu sp,sp,32
4007dc: 00000000 nop
Disassembly of section .fini:
004007e0 <_fini>:
4007e0: 3c1c0fc0 lui gp,0xfc0
4007e4: 279c7850 addiu gp,gp,30800
4007e8: 0399e021 addu gp,gp,t9
4007ec: 27bdffe0 addiu sp,sp,-32
4007f0: afbc0010 sw gp,16(sp)
4007f4: afbf001c sw ra,28(sp)
4007f8: afbc0018 sw gp,24(sp)
4007fc: 00000000 nop
400800: 8f998018 lw t9,-32744(gp)
400804: 00000000 nop
400808: 27390550 addiu t9,t9,1360
40080c: 00000000 nop
400810: 0320f809 jalr t9
400814: 00000000 nop
400818: 8fbc0010 lw gp,16(sp)
40081c: 00000000 nop
400820: 8fbf001c lw ra,28(sp)
400824: 00000000 nop
400828: 03e00008 jr ra
40082c: 27bd0020 addiu sp,sp,32
while-nop: file format elf32-tradbigmips
Disassembly of section .init:
004003f0 <_init>:
4003f0: 3c1c0fc0 lui gp,0xfc0
4003f4: 279c7c40 addiu gp,gp,31808
4003f8: 0399e021 addu gp,gp,t9
4003fc: 27bdffe0 addiu sp,sp,-32
400400: afbc0010 sw gp,16(sp)
400404: afbf001c sw ra,28(sp)
400408: afbc0018 sw gp,24(sp)
40040c: 8f998018 lw t9,-32744(gp)
400410: 00000000 nop
400414: 27390500 addiu t9,t9,1280
...
400420: 0320f809 jalr t9
400424: 00000000 nop
400428: 8fbc0010 lw gp,16(sp)
40042c: 00000000 nop
400430: 8f998018 lw t9,-32744(gp)
400434: 00000000 nop
400438: 2739063c addiu t9,t9,1596
40043c: 00000000 nop
400440: 0320f809 jalr t9
400444: 00000000 nop
400448: 8fbc0010 lw gp,16(sp)
40044c: 00000000 nop
400450: 8f998018 lw t9,-32744(gp)
400454: 00000000 nop
400458: 27390720 addiu t9,t9,1824
40045c: 00000000 nop
400460: 0320f809 jalr t9
400464: 00000000 nop
400468: 8fbc0010 lw gp,16(sp)
40046c: 00000000 nop
400470: 8fbf001c lw ra,28(sp)
400474: 00000000 nop
400478: 03e00008 jr ra
40047c: 27bd0020 addiu sp,sp,32
Disassembly of section .text:
00400480 <__start>:
400480: 04100001 bltzal zero,400488 <__start+0x8>
400484: 00000000 nop
400488: 3c1c0fc0 lui gp,0xfc0
40048c: 279c7ba8 addiu gp,gp,31656
400490: 039fe021 addu gp,gp,ra
400494: 0000f821 move ra,zero
400498: 8f84803c lw a0,-32708(gp)
40049c: 8fa50000 lw a1,0(sp)
4004a0: 27a60004 addiu a2,sp,4
4004a4: 3c01ffff lui at,0xffff
4004a8: 3421fff8 ori at,at,0xfff8
4004ac: 03a1e824 and sp,sp,at
4004b0: 27bdffe0 addiu sp,sp,-32
4004b4: 8f878040 lw a3,-32704(gp)
4004b8: 8f888034 lw t0,-32716(gp)
4004bc: 00000000 nop
4004c0: afa80010 sw t0,16(sp)
4004c4: afa20014 sw v0,20(sp)
4004c8: afbd0018 sw sp,24(sp)
4004cc: 8f998038 lw t9,-32712(gp)
4004d0: 00000000 nop
4004d4: 0320f809 jalr t9
4004d8: 00000000 nop
004004dc <hlt>:
4004dc: 1000ffff b 4004dc <hlt>
4004e0: 00000000 nop
...
00400500 <call_gmon_start>:
400500: 3c1c0fc0 lui gp,0xfc0
400504: 279c7b30 addiu gp,gp,31536
400508: 0399e021 addu gp,gp,t9
40050c: 27bdffe0 addiu sp,sp,-32
400510: afbc0010 sw gp,16(sp)
400514: afbf001c sw ra,28(sp)
400518: 8f82802c lw v0,-32724(gp)
40051c: 00000000 nop
400520: 10400006 beqz v0,40053c <call_gmon_start+0x3c>
400524: afbc0018 sw gp,24(sp)
400528: 0040c821 move t9,v0
40052c: 00000000 nop
400530: 0320f809 jalr t9
400534: 00000000 nop
400538: 8fbc0010 lw gp,16(sp)
40053c: 8fbf001c lw ra,28(sp)
...
400548: 03e00008 jr ra
40054c: 27bd0020 addiu sp,sp,32
00400550 <__do_global_dtors_aux>:
400550: 3c1c0fc0 lui gp,0xfc0
400554: 279c7ae0 addiu gp,gp,31456
400558: 0399e021 addu gp,gp,t9
40055c: 27bdffe0 addiu sp,sp,-32
400560: afbc0010 sw gp,16(sp)
400564: 8f82801c lw v0,-32740(gp)
400568: 00000000 nop
40056c: 24420080 addiu v0,v0,128
400570: 90420000 lbu v0,0(v0)
400574: afbf001c sw ra,28(sp)
400578: 14400021 bnez v0,400600 <__do_global_dtors_aux+0xb0>
40057c: afbc0018 sw gp,24(sp)
400580: 8f82801c lw v0,-32740(gp)
400584: 00000000 nop
400588: 24420014 addiu v0,v0,20
40058c: 8c420000 lw v0,0(v0)
400590: 00000000 nop
400594: 8c430000 lw v1,0(v0)
400598: 00000000 nop
40059c: 10600013 beqz v1,4005ec <__do_global_dtors_aux+0x9c>
4005a0: 24420004 addiu v0,v0,4
4005a4: 8f81801c lw at,-32740(gp)
4005a8: 00000000 nop
4005ac: 24210014 addiu at,at,20
4005b0: ac220000 sw v0,0(at)
4005b4: 0060c821 move t9,v1
4005b8: 0320f809 jalr t9
4005bc: 00000000 nop
4005c0: 8fbc0010 lw gp,16(sp)
4005c4: 00000000 nop
4005c8: 8f82801c lw v0,-32740(gp)
4005cc: 00000000 nop
4005d0: 24420014 addiu v0,v0,20
4005d4: 8c420000 lw v0,0(v0)
4005d8: 00000000 nop
4005dc: 8c430000 lw v1,0(v0)
4005e0: 00000000 nop
4005e4: 1460ffef bnez v1,4005a4 <__do_global_dtors_aux+0x54>
4005e8: 24420004 addiu v0,v0,4
4005ec: 24020001 li v0,1
4005f0: 8f81801c lw at,-32740(gp)
4005f4: 00000000 nop
4005f8: 24210080 addiu at,at,128
4005fc: a0220000 sb v0,0(at)
400600: 8fbf001c lw ra,28(sp)
400604: 00000000 nop
400608: 03e00008 jr ra
40060c: 27bd0020 addiu sp,sp,32
00400610 <call___do_global_dtors_aux>:
400610: 3c1c0fc0 lui gp,0xfc0
400614: 279c7a20 addiu gp,gp,31264
400618: 0399e021 addu gp,gp,t9
40061c: 27bdffe0 addiu sp,sp,-32
400620: afbc0010 sw gp,16(sp)
400624: afbf001c sw ra,28(sp)
400628: afbc0018 sw gp,24(sp)
40062c: 8fbf001c lw ra,28(sp)
400630: 00000000 nop
400634: 03e00008 jr ra
400638: 27bd0020 addiu sp,sp,32
0040063c <frame_dummy>:
40063c: 3c1c0fc0 lui gp,0xfc0
400640: 279c79f4 addiu gp,gp,31220
400644: 0399e021 addu gp,gp,t9
400648: 27bdffe0 addiu sp,sp,-32
40064c: afbc0010 sw gp,16(sp)
400650: afbf001c sw ra,28(sp)
400654: 8f84801c lw a0,-32740(gp)
400658: 00000000 nop
40065c: 24840038 addiu a0,a0,56
400660: 8f838030 lw v1,-32720(gp)
400664: afbc0018 sw gp,24(sp)
400668: 8c820000 lw v0,0(a0)
40066c: 00000000 nop
400670: 10400007 beqz v0,400690 <frame_dummy+0x54>
400674: 00000000 nop
400678: 10600005 beqz v1,400690 <frame_dummy+0x54>
40067c: 00000000 nop
400680: 0060c821 move t9,v1
400684: 0320f809 jalr t9
400688: 00000000 nop
40068c: 8fbc0010 lw gp,16(sp)
400690: 8fbf001c lw ra,28(sp)
400694: 00000000 nop
400698: 03e00008 jr ra
40069c: 27bd0020 addiu sp,sp,32
004006a0 <call_frame_dummy>:
4006a0: 3c1c0fc0 lui gp,0xfc0
4006a4: 279c7990 addiu gp,gp,31120
4006a8: 0399e021 addu gp,gp,t9
4006ac: 27bdffe0 addiu sp,sp,-32
4006b0: afbc0010 sw gp,16(sp)
4006b4: afbf001c sw ra,28(sp)
4006b8: afbc0018 sw gp,24(sp)
4006bc: 8fbf001c lw ra,28(sp)
4006c0: 00000000 nop
4006c4: 03e00008 jr ra
4006c8: 27bd0020 addiu sp,sp,32
4006cc: 00000000 nop
004006d0 <main>:
4006d0: 3c1c0fc0 lui gp,0xfc0
4006d4: 279c7960 addiu gp,gp,31072
4006d8: 0399e021 addu gp,gp,t9
4006dc: 27bdffe0 addiu sp,sp,-32
4006e0: afbc0000 sw gp,0(sp)
4006e4: afbe001c sw s8,28(sp)
4006e8: afbc0018 sw gp,24(sp)
4006ec: 03a0f021 move s8,sp
4006f0: 24020001 li v0,1
4006f4: afc20008 sw v0,8(s8)
4006f8: 24020002 li v0,2
4006fc: afc2000c sw v0,12(s8)
400700: 00000000 nop
400704: 8fc20008 lw v0,8(s8)
400708: 8fc3000c lw v1,12(s8)
40070c: 00000000 nop
400710: 00431021 addu v0,v0,v1
400714: 1000fffb b 400704 <main+0x34>
400718: afc20010 sw v0,16(s8)
40071c: 00000000 nop
00400720 <__do_global_ctors_aux>:
400720: 3c1c0fc0 lui gp,0xfc0
400724: 279c7910 addiu gp,gp,30992
400728: 0399e021 addu gp,gp,t9
40072c: 27bdffd8 addiu sp,sp,-40
400730: afbc0010 sw gp,16(sp)
400734: afb00018 sw s0,24(sp)
400738: 8f82801c lw v0,-32740(gp)
40073c: 00000000 nop
400740: 2442002c addiu v0,v0,44
400744: 2403ffff li v1,-1
400748: afbf0024 sw ra,36(sp)
40074c: afbc0020 sw gp,32(sp)
400750: afb1001c sw s1,28(sp)
400754: 8c44fffc lw a0,-4(v0)
400758: 00000000 nop
40075c: 1083000f beq a0,v1,40079c <__do_global_ctors_aux+0x7c>
400760: 2450fffc addiu s0,v0,-4
400764: 8f83801c lw v1,-32740(gp)
400768: 00000000 nop
40076c: 2463002c addiu v1,v1,44
400770: 8c63fffc lw v1,-4(v1)
400774: 2411ffff li s1,-1
400778: 2610fffc addiu s0,s0,-4
40077c: 0060c821 move t9,v1
400780: 0320f809 jalr t9
400784: 00000000 nop
400788: 8fbc0010 lw gp,16(sp)
40078c: 8e020000 lw v0,0(s0)
400790: 00000000 nop
400794: 1451fff8 bne v0,s1,400778 <__do_global_ctors_aux+0x58>
400798: 00401821 move v1,v0
40079c: 8fbf0024 lw ra,36(sp)
4007a0: 8fb1001c lw s1,28(sp)
4007a4: 8fb00018 lw s0,24(sp)
4007a8: 03e00008 jr ra
4007ac: 27bd0028 addiu sp,sp,40
004007b0 <call___do_global_ctors_aux>:
4007b0: 3c1c0fc0 lui gp,0xfc0
4007b4: 279c7880 addiu gp,gp,30848
4007b8: 0399e021 addu gp,gp,t9
4007bc: 27bdffe0 addiu sp,sp,-32
4007c0: afbc0010 sw gp,16(sp)
4007c4: afbf001c sw ra,28(sp)
4007c8: afbc0018 sw gp,24(sp)
4007cc: 8fbf001c lw ra,28(sp)
4007d0: 00000000 nop
4007d4: 03e00008 jr ra
4007d8: 27bd0020 addiu sp,sp,32
4007dc: 00000000 nop
Disassembly of section .fini:
004007e0 <_fini>:
4007e0: 3c1c0fc0 lui gp,0xfc0
4007e4: 279c7850 addiu gp,gp,30800
4007e8: 0399e021 addu gp,gp,t9
4007ec: 27bdffe0 addiu sp,sp,-32
4007f0: afbc0010 sw gp,16(sp)
4007f4: afbf001c sw ra,28(sp)
4007f8: afbc0018 sw gp,24(sp)
4007fc: 00000000 nop
400800: 8f998018 lw t9,-32744(gp)
400804: 00000000 nop
400808: 27390550 addiu t9,t9,1360
40080c: 00000000 nop
400810: 0320f809 jalr t9
400814: 00000000 nop
400818: 8fbc0010 lw gp,16(sp)
40081c: 00000000 nop
400820: 8fbf001c lw ra,28(sp)
400824: 00000000 nop
400828: 03e00008 jr ra
40082c: 27bd0020 addiu sp,sp,32
