Lab4 CSAPP: Archlab
环境配置：
sudo apt install tcl tcl-dev tk tk-dev flex bison
A
在sim/misc下，用Y86-64汇编代码实现examples.c中的三个代码。
sum
链表求和
# Execution begins at address 0
.pos 0
irmovq stack,%rsp
call main
halt
# Sample linked list
.align 8
ele1:
.quad 0x00a
.quad ele2
ele2:
.quad 0x0b0
.quad ele3
ele3:
.quad 0xc00
.quad 0
main: irmovq ele1,%rdi
call sum_list
ret
sum_list:
irmovq $0,%rax
jmp test
loop: mrmovq 0(%rdi),%rsi
addq %rsi,%rax
mrmovq 8(%rdi),%rsi
rrmovq %rsi,%rdi
test: andq %rdi,%rdi
jne loop
ret
.pos 0x100
stack:
编译并测试
bernard@aqua:~/code/csapp/archlab/solutions$ ../sim/misc/yas sum.ys
bernard@aqua:~/code/csapp/archlab/solutions$ ../sim/misc/yis sum.yo
Stopped in 29 steps at PC = 0x13. Status 'HLT', CC Z=1 S=0 O=0
Changes to registers:
%rax: 0x0000000000000000 0x0000000000000cba
%rsp: 0x0000000000000000 0x0000000000000100
Changes to memory:
0x00f0: 0x0000000000000000 0x000000000000005b
0x00f8: 0x0000000000000000 0x0000000000000013
rsum
链表求和的递归实现
# rsum.ys by name1e5s
# Execution begins at address 0
.pos 0
irmovq stack, %rsp
call main
halt
# Sample linked list
.align 8
ele1:
.quad 0x00a
.quad e1e2
e1e2:
.quad 0x0b0
.quad e1e3
e1e3:
.quad 0xc00
.quad 0
main: irmovq ele1, %rdi
call rsum_list
ret
rsum_list:
pushq %r12
irmovq $0, %rax
andq %rdi,%rdi
je re
mrmovq 0(%rdi), %r12
mrmovq 8(%rdi), %rdi
call rsum_list
addq %r12, %rax
re: popq %r12
ret
.pos 0x100
stack:
编译并测试
bernard@aqua:~/code/csapp/archlab/solutions$ ../sim/misc/yas rsum.ys
bernard@aqua:~/code/csapp/archlab/solutions$ ../sim/misc/yas rsum.yo
Usage: ../sim/misc/yas [-V[n]] file.ys
-V[n] Generate memory initialization in Verilog format (n-way blocking)
bernard@aqua:~/code/csapp/archlab/solutions$ ../sim/misc/yis rsum.yo
Stopped in 42 steps at PC = 0x13. Status 'HLT', CC Z=0 S=0 O=0
Changes to registers:
%rax: 0x0000000000000000 0x0000000000000cba
%rsp: 0x0000000000000000 0x0000000000000100
Changes to memory:
0x00b8: 0x0000000000000000 0x0000000000000c00
0x00c0: 0x0000000000000000 0x0000000000000090
0x00c8: 0x0000000000000000 0x00000000000000b0
0x00d0: 0x0000000000000000 0x0000000000000090
0x00d8: 0x0000000000000000 0x000000000000000a
0x00e0: 0x0000000000000000 0x0000000000000090
0x00f0: 0x0000000000000000 0x000000000000005b
0x00f8: 0x0000000000000000 0x0000000000000013
cblock
数组赋值操作，返回值为原数组各项的按位异或
本段代码可参考书上图4-7
# Execution begins at address 0
.pos 0
irmovq stack, %rsp
call main
halt
.align 8
# Source block
src:
.quad 0x00a
.quad 0x0b0
.quad 0xc00
# Destination block
dest:
.quad 0x111
.quad 0x222
.quad 0x333
main:
irmovq src, %rdi
irmovq dest, %rsi
irmovq $3, %rdx
call copy_block
ret
copy_block:
pushq %r12
pushq %r13
pushq %r14
irmovq $1, %r13
irmovq $8, %r14
irmovq $0, %rax
jmp Tloop
loop:
mrmovq 0(%rdi), %r12
addq %r14, %rdi
rmmovq %r12, (%rsi)
addq %r14, %rsi
xorq %r12, %rax
subq %r13, %rdx
Tloop:
andq %rdx, %rdx
jg loop
popq %r14
popq %r13
popq %r12
ret
.pos 0x100
stack:
编译并测试
bernard@aqua:~/code/csapp/archlab/solutions$ ../sim/misc/yas cblock.ys
bernard@aqua:~/code/csapp/archlab/solutions$ ../sim/misc/yis cblock.yo
Stopped in 45 steps at PC = 0x13. Status 'HLT', CC Z=1 S=0 O=0
Changes to registers:
%rax: 0x0000000000000000 0x0000000000000cba
%rsp: 0x0000000000000000 0x0000000000000100
%rsi: 0x0000000000000000 0x0000000000000048
%rdi: 0x0000000000000000 0x0000000000000030
Changes to memory:
0x0030: 0x0000000000000111 0x000000000000000a
0x0038: 0x0000000000000222 0x00000000000000b0
0x0040: 0x0000000000000333 0x0000000000000c00
0x00f0: 0x0000000000000000 0x000000000000006f
0x00f8: 0x0000000000000000 0x0000000000000013
B
在sim/seq下，添加IADDQ指令，在seq-full.hcl文件中修改代码。
注意需要更新一下编译环境：
Makefile修改一下。第 20 行改为TKINC=-isystem /usr/include/tcl8.6，第 26 行改为CFLAGS=-Wall -O2 -DUSE_INTERP_RESULT
注释掉/sim/pipe/psim.c 806、807行和/sim/seq/ssim.c 844、845行。即源代码中有matherr的一行和它的下一行
bernard@aqua:~/code/csapp/archlab/sim/seq$ ./ssim -t ../y86-code/asumi.yo
Y86-64 Processor: seq-full.hcl
137 bytes of code read
IF: Fetched irmovq at 0x0. ra=----, rb=%rsp, valC = 0x100
IF: Fetched call at 0xa. ra=----, rb=----, valC = 0x38
Wrote 0x13 to address 0xf8
IF: Fetched irmovq at 0x38. ra=----, rb=%rdi, valC = 0x18
IF: Fetched irmovq at 0x42. ra=----, rb=%rsi, valC = 0x4
IF: Fetched call at 0x4c. ra=----, rb=----, valC = 0x56
Wrote 0x55 to address 0xf0
IF: Fetched xorq at 0x56. ra=%rax, rb=%rax, valC = 0x0
IF: Fetched andq at 0x58. ra=%rsi, rb=%rsi, valC = 0x0
IF: Fetched jmp at 0x5a. ra=----, rb=----, valC = 0x83
IF: Fetched jne at 0x83. ra=----, rb=----, valC = 0x63
IF: Fetched mrmovq at 0x63. ra=%r10, rb=%rdi, valC = 0x0
IF: Fetched addq at 0x6d. ra=%r10, rb=%rax, valC = 0x0
IF: Fetched iaddq at 0x6f. ra=----, rb=%rdi, valC = 0x8
IF: Fetched iaddq at 0x79. ra=----, rb=%rsi, valC = 0xffffffffffffffff
IF: Fetched jne at 0x83. ra=----, rb=----, valC = 0x63
IF: Fetched mrmovq at 0x63. ra=%r10, rb=%rdi, valC = 0x0
IF: Fetched addq at 0x6d. ra=%r10, rb=%rax, valC = 0x0
IF: Fetched iaddq at 0x6f. ra=----, rb=%rdi, valC = 0x8
IF: Fetched iaddq at 0x79. ra=----, rb=%rsi, valC = 0xffffffffffffffff
IF: Fetched jne at 0x83. ra=----, rb=----, valC = 0x63
IF: Fetched mrmovq at 0x63. ra=%r10, rb=%rdi, valC = 0x0
IF: Fetched addq at 0x6d. ra=%r10, rb=%rax, valC = 0x0
IF: Fetched iaddq at 0x6f. ra=----, rb=%rdi, valC = 0x8
IF: Fetched iaddq at 0x79. ra=----, rb=%rsi, valC = 0xffffffffffffffff
IF: Fetched jne at 0x83. ra=----, rb=----, valC = 0x63
IF: Fetched mrmovq at 0x63. ra=%r10, rb=%rdi, valC = 0x0
IF: Fetched addq at 0x6d. ra=%r10, rb=%rax, valC = 0x0
IF: Fetched iaddq at 0x6f. ra=----, rb=%rdi, valC = 0x8
IF: Fetched iaddq at 0x79. ra=----, rb=%rsi, valC = 0xffffffffffffffff
IF: Fetched jne at 0x83. ra=----, rb=----, valC = 0x63
IF: Fetched ret at 0x8c. ra=----, rb=----, valC = 0x0
IF: Fetched ret at 0x55. ra=----, rb=----, valC = 0x0
IF: Fetched halt at 0x13. ra=----, rb=----, valC = 0x0
32 instructions executed
Status = HLT
Condition Codes: Z=1 S=0 O=0
Changed Register State:
%rax: 0x0000000000000000 0x0000abcdabcdabcd
%rsp: 0x0000000000000000 0x0000000000000100
%rdi: 0x0000000000000000 0x0000000000000038
%r10: 0x0000000000000000 0x0000a000a000a000
Changed Memory State:
0x00f0: 0x0000000000000000 0x0000000000000055
0x00f8: 0x0000000000000000 0x0000000000000013
ISA Check Succeeds
bernard@aqua:~/code/csapp/archlab/sim/seq$ cd ../y86-code; make testssim
../seq/ssim -t asum.yo > asum.seq
../seq/ssim -t asumr.yo > asumr.seq
../seq/ssim -t cjr.yo > cjr.seq
../seq/ssim -t j-cc.yo > j-cc.seq
../seq/ssim -t poptest.yo > poptest.seq
../seq/ssim -t pushquestion.yo > pushquestion.seq
../seq/ssim -t pushtest.yo > pushtest.seq
../seq/ssim -t prog1.yo > prog1.seq
../seq/ssim -t prog2.yo > prog2.seq
../seq/ssim -t prog3.yo > prog3.seq
../seq/ssim -t prog4.yo > prog4.seq
../seq/ssim -t prog5.yo > prog5.seq
../seq/ssim -t prog6.yo > prog6.seq
../seq/ssim -t prog7.yo > prog7.seq
../seq/ssim -t prog8.yo > prog8.seq
../seq/ssim -t ret-hazard.yo > ret-hazard.seq
grep "ISA Check" *.seq
asum.seq:ISA Check Succeeds
asumr.seq:ISA Check Succeeds
cjr.seq:ISA Check Succeeds
j-cc.seq:ISA Check Succeeds
poptest.seq:ISA Check Succeeds
prog1.seq:ISA Check Succeeds
prog2.seq:ISA Check Succeeds
prog3.seq:ISA Check Succeeds
prog4.seq:ISA Check Succeeds
prog5.seq:ISA Check Succeeds
prog6.seq:ISA Check Succeeds
prog7.seq:ISA Check Succeeds
prog8.seq:ISA Check Succeeds
pushquestion.seq:ISA Check Succeeds
pushtest.seq:ISA Check Succeeds
ret-hazard.seq:ISA Check Succeeds
rm asum.seq asumr.seq cjr.seq j-cc.seq poptest.seq pushquestion.seq pushtest.seq prog1.seq prog2.seq prog3.seq prog4.seq prog5.seq prog6.seq prog7.seq prog8.seq ret-hazard.seq
bernard@aqua:~/code/csapp/archlab/sim/y86-code$ cd ../ptest;make SIM=../seq/ssim
./optest.pl -s ../seq/ssim
Simulating with ../seq/ssim
All 49 ISA Checks Succeed
./jtest.pl -s ../seq/ssim
Simulating with ../seq/ssim
All 64 ISA Checks Succeed
./ctest.pl -s ../seq/ssim
Simulating with ../seq/ssim
All 22 ISA Checks Succeed
./htest.pl -s ../seq/ssim
Simulating with ../seq/ssim
All 600 ISA Checks Succeed
bernard@aqua:~/code/csapp/archlab/sim/ptest$ make SIM=../seq/ssim TFLAGS=-i
./optest.pl -s ../seq/ssim -i
Simulating with ../seq/ssim
All 58 ISA Checks Succeed
./jtest.pl -s ../seq/ssim -i
Simulating with ../seq/ssim
All 96 ISA Checks Succeed
./ctest.pl -s ../seq/ssim -i
Simulating with ../seq/ssim
All 22 ISA Checks Succeed
./htest.pl -s ../seq/ssim -i
Simulating with ../seq/ssim
All 756 ISA Checks Succeed
C
Part C 在sim/pipe中进行。PIPE 是使用了转发技术的流水线化的Y86-64处理器。
它相比 Part B 增加了流水线寄存器和流水线控制逻辑。
和 Part B 一样，需要调整编译设置，并增加IADDQ指令。
可以通过循环展开、剩余数据处理、消除气泡等优化。
bernard@aqua:~/code/csapp/archlab/sim/pipe$ ./psim -t ../y86-code/asumi.yo
Y86-64 Processor: pipe-full.hcl
137 bytes of code read
Cycle 0. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0x0
D: instr = nop, rA = ----, rB = ----, valC = 0x0, valP = 0x0, Stat = BUB
E: instr = nop, valC = 0x0, valA = 0x0, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = BUB
M: instr = nop, Cnd = 0, valE = 0x0, valA = 0x0
dstE = ----, dstM = ----, Stat = BUB
W: instr = nop, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = BUB
Fetch: f_pc = 0x0, imem_instr = irmovq, f_instr = irmovq
Execute: ALU: + 0x0 0x0 --> 0x0
Cycle 1. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0xa
D: instr = irmovq, rA = ----, rB = %rsp, valC = 0x100, valP = 0xa, Stat = AOK
E: instr = nop, valC = 0x0, valA = 0x0, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = BUB
M: instr = nop, Cnd = 1, valE = 0x0, valA = 0x0
dstE = ----, dstM = ----, Stat = BUB
W: instr = nop, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = BUB
Fetch: f_pc = 0xa, imem_instr = call, f_instr = call
Execute: ALU: + 0x0 0x0 --> 0x0
Cycle 2. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0x38
D: instr = call, rA = ----, rB = ----, valC = 0x38, valP = 0x13, Stat = AOK
E: instr = irmovq, valC = 0x100, valA = 0x0, valB = 0x0
srcA = ----, srcB = ----, dstE = %rsp, dstM = ----, Stat = AOK
M: instr = nop, Cnd = 1, valE = 0x0, valA = 0x0
dstE = ----, dstM = ----, Stat = BUB
W: instr = nop, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = BUB
Fetch: f_pc = 0x38, imem_instr = irmovq, f_instr = irmovq
Execute: ALU: + 0x100 0x0 --> 0x100
Cycle 3. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0x42
D: instr = irmovq, rA = ----, rB = %rdi, valC = 0x18, valP = 0x42, Stat = AOK
E: instr = call, valC = 0x38, valA = 0x13, valB = 0x100
srcA = ----, srcB = %rsp, dstE = %rsp, dstM = ----, Stat = AOK
M: instr = irmovq, Cnd = 1, valE = 0x100, valA = 0x0
dstE = %rsp, dstM = ----, Stat = AOK
W: instr = nop, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = BUB
Fetch: f_pc = 0x42, imem_instr = irmovq, f_instr = irmovq
Execute: ALU: + 0xfffffffffffffff8 0x100 --> 0xf8
Cycle 4. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0x4c
D: instr = irmovq, rA = ----, rB = %rsi, valC = 0x4, valP = 0x4c, Stat = AOK
E: instr = irmovq, valC = 0x18, valA = 0x0, valB = 0x0
srcA = ----, srcB = ----, dstE = %rdi, dstM = ----, Stat = AOK
M: instr = call, Cnd = 1, valE = 0xf8, valA = 0x13
dstE = %rsp, dstM = ----, Stat = AOK
W: instr = irmovq, valE = 0x100, valM = 0x0, dstE = %rsp, dstM = ----, Stat = AOK
Fetch: f_pc = 0x4c, imem_instr = call, f_instr = call
Execute: ALU: + 0x18 0x0 --> 0x18
Writeback: Wrote 0x100 to register %rsp
Wrote 0x13 to address 0xf8
Cycle 5. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0x56
D: instr = call, rA = ----, rB = ----, valC = 0x56, valP = 0x55, Stat = AOK
E: instr = irmovq, valC = 0x4, valA = 0x0, valB = 0x0
srcA = ----, srcB = ----, dstE = %rsi, dstM = ----, Stat = AOK
M: instr = irmovq, Cnd = 1, valE = 0x18, valA = 0x0
dstE = %rdi, dstM = ----, Stat = AOK
W: instr = call, valE = 0xf8, valM = 0x0, dstE = %rsp, dstM = ----, Stat = AOK
Fetch: f_pc = 0x56, imem_instr = xorq, f_instr = xorq
Execute: ALU: + 0x4 0x0 --> 0x4
Writeback: Wrote 0xf8 to register %rsp
Cycle 6. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0x58
D: instr = xorq, rA = %rax, rB = %rax, valC = 0x0, valP = 0x58, Stat = AOK
E: instr = call, valC = 0x56, valA = 0x55, valB = 0xf8
srcA = ----, srcB = %rsp, dstE = %rsp, dstM = ----, Stat = AOK
M: instr = irmovq, Cnd = 1, valE = 0x4, valA = 0x0
dstE = %rsi, dstM = ----, Stat = AOK
W: instr = irmovq, valE = 0x18, valM = 0x0, dstE = %rdi, dstM = ----, Stat = AOK
Fetch: f_pc = 0x58, imem_instr = andq, f_instr = andq
Execute: ALU: + 0xfffffffffffffff8 0xf8 --> 0xf0
Writeback: Wrote 0x18 to register %rdi
Cycle 7. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0x5a
D: instr = andq, rA = %rsi, rB = %rsi, valC = 0x0, valP = 0x5a, Stat = AOK
E: instr = xorq, valC = 0x0, valA = 0x0, valB = 0x0
srcA = %rax, srcB = %rax, dstE = %rax, dstM = ----, Stat = AOK
M: instr = call, Cnd = 1, valE = 0xf0, valA = 0x55
dstE = %rsp, dstM = ----, Stat = AOK
W: instr = irmovq, valE = 0x4, valM = 0x0, dstE = %rsi, dstM = ----, Stat = AOK
Fetch: f_pc = 0x5a, imem_instr = jmp, f_instr = jmp
Execute: ALU: ^ 0x0 0x0 --> 0x0
Execute: New cc = Z=1 S=0 O=0
Writeback: Wrote 0x4 to register %rsi
Wrote 0x55 to address 0xf0
Cycle 8. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0x83
D: instr = jmp, rA = ----, rB = ----, valC = 0x83, valP = 0x63, Stat = AOK
E: instr = andq, valC = 0x0, valA = 0x4, valB = 0x4
srcA = %rsi, srcB = %rsi, dstE = %rsi, dstM = ----, Stat = AOK
M: instr = xorq, Cnd = 1, valE = 0x0, valA = 0x0
dstE = %rax, dstM = ----, Stat = AOK
W: instr = call, valE = 0xf0, valM = 0x0, dstE = %rsp, dstM = ----, Stat = AOK
Fetch: f_pc = 0x83, imem_instr = jne, f_instr = jne
Execute: ALU: & 0x4 0x4 --> 0x4
Execute: New cc = Z=0 S=0 O=0
Writeback: Wrote 0xf0 to register %rsp
Cycle 9. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x63
D: instr = jne, rA = ----, rB = ----, valC = 0x63, valP = 0x8c, Stat = AOK
E: instr = jmp, valC = 0x83, valA = 0x63, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = AOK
M: instr = andq, Cnd = 0, valE = 0x4, valA = 0x4
dstE = %rsi, dstM = ----, Stat = AOK
W: instr = xorq, valE = 0x0, valM = 0x0, dstE = %rax, dstM = ----, Stat = AOK
Fetch: f_pc = 0x63, imem_instr = mrmovq, f_instr = mrmovq
Execute: instr = jmp, cc = Z=0 S=0 O=0, branch taken
Execute: ALU: + 0x0 0x0 --> 0x0
Writeback: Wrote 0x0 to register %rax
Cycle 10. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x6d
D: instr = mrmovq, rA = %r10, rB = %rdi, valC = 0x0, valP = 0x6d, Stat = AOK
E: instr = jne, valC = 0x63, valA = 0x8c, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = AOK
M: instr = jmp, Cnd = 1, valE = 0x0, valA = 0x63
dstE = ----, dstM = ----, Stat = AOK
W: instr = andq, valE = 0x4, valM = 0x0, dstE = %rsi, dstM = ----, Stat = AOK
Fetch: f_pc = 0x6d, imem_instr = addq, f_instr = addq
Execute: instr = jne, cc = Z=0 S=0 O=0, branch taken
Execute: ALU: + 0x0 0x0 --> 0x0
Writeback: Wrote 0x4 to register %rsi
Cycle 11. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x6f
D: instr = addq, rA = %r10, rB = %rax, valC = 0x0, valP = 0x6f, Stat = AOK
E: instr = mrmovq, valC = 0x0, valA = 0x0, valB = 0x18
srcA = ----, srcB = %rdi, dstE = ----, dstM = %r10, Stat = AOK
M: instr = jne, Cnd = 1, valE = 0x0, valA = 0x8c
dstE = ----, dstM = ----, Stat = AOK
W: instr = jmp, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = AOK
Fetch: f_pc = 0x6f, imem_instr = iaddq, f_instr = iaddq
Execute: ALU: + 0x0 0x18 --> 0x18
Cycle 12. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x6f
D: instr = addq, rA = %r10, rB = %rax, valC = 0x0, valP = 0x6f, Stat = AOK
E: instr = nop, valC = 0x0, valA = 0x0, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = BUB
M: instr = mrmovq, Cnd = 1, valE = 0x18, valA = 0x0
dstE = ----, dstM = %r10, Stat = AOK
W: instr = jne, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = AOK
Fetch: f_pc = 0x6f, imem_instr = iaddq, f_instr = iaddq
Memory: Read 0xd000d000d from 0x18
Execute: ALU: + 0x0 0x0 --> 0x0
Cycle 13. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x79
D: instr = iaddq, rA = ----, rB = %rdi, valC = 0x8, valP = 0x79, Stat = AOK
E: instr = addq, valC = 0x0, valA = 0xd000d000d, valB = 0x0
srcA = %r10, srcB = %rax, dstE = %rax, dstM = ----, Stat = AOK
M: instr = nop, Cnd = 1, valE = 0x0, valA = 0x0
dstE = ----, dstM = ----, Stat = BUB
W: instr = mrmovq, valE = 0x18, valM = 0xd000d000d, dstE = ----, dstM = %r10, Stat = AOK
Fetch: f_pc = 0x79, imem_instr = iaddq, f_instr = iaddq
Execute: ALU: + 0xd000d000d 0x0 --> 0xd000d000d
Execute: New cc = Z=0 S=0 O=0
Writeback: Wrote 0xd000d000d to register %r10
Cycle 14. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x83
D: instr = iaddq, rA = ----, rB = %rsi, valC = 0xffffffffffffffff, valP = 0x83, Stat = AOK
E: instr = iaddq, valC = 0x8, valA = 0x0, valB = 0x18
srcA = ----, srcB = %rdi, dstE = %rdi, dstM = ----, Stat = AOK
M: instr = addq, Cnd = 1, valE = 0xd000d000d, valA = 0xd000d000d
dstE = %rax, dstM = ----, Stat = AOK
W: instr = nop, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = BUB
Fetch: f_pc = 0x83, imem_instr = jne, f_instr = jne
Execute: ALU: + 0x8 0x18 --> 0x20
Execute: New cc = Z=0 S=0 O=0
Cycle 15. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x63
D: instr = jne, rA = ----, rB = ----, valC = 0x63, valP = 0x8c, Stat = AOK
E: instr = iaddq, valC = 0xffffffffffffffff, valA = 0x0, valB = 0x4
srcA = ----, srcB = %rsi, dstE = %rsi, dstM = ----, Stat = AOK
M: instr = iaddq, Cnd = 1, valE = 0x20, valA = 0x0
dstE = %rdi, dstM = ----, Stat = AOK
W: instr = addq, valE = 0xd000d000d, valM = 0x0, dstE = %rax, dstM = ----, Stat = AOK
Fetch: f_pc = 0x63, imem_instr = mrmovq, f_instr = mrmovq
Execute: ALU: + 0xffffffffffffffff 0x4 --> 0x3
Execute: New cc = Z=0 S=0 O=0
Writeback: Wrote 0xd000d000d to register %rax
Cycle 16. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x6d
D: instr = mrmovq, rA = %r10, rB = %rdi, valC = 0x0, valP = 0x6d, Stat = AOK
E: instr = jne, valC = 0x63, valA = 0x8c, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = AOK
M: instr = iaddq, Cnd = 1, valE = 0x3, valA = 0x0
dstE = %rsi, dstM = ----, Stat = AOK
W: instr = iaddq, valE = 0x20, valM = 0x0, dstE = %rdi, dstM = ----, Stat = AOK
Fetch: f_pc = 0x6d, imem_instr = addq, f_instr = addq
Execute: instr = jne, cc = Z=0 S=0 O=0, branch taken
Execute: ALU: + 0x0 0x0 --> 0x0
Writeback: Wrote 0x20 to register %rdi
Cycle 17. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x6f
D: instr = addq, rA = %r10, rB = %rax, valC = 0x0, valP = 0x6f, Stat = AOK
E: instr = mrmovq, valC = 0x0, valA = 0x0, valB = 0x20
srcA = ----, srcB = %rdi, dstE = ----, dstM = %r10, Stat = AOK
M: instr = jne, Cnd = 1, valE = 0x0, valA = 0x8c
dstE = ----, dstM = ----, Stat = AOK
W: instr = iaddq, valE = 0x3, valM = 0x0, dstE = %rsi, dstM = ----, Stat = AOK
Fetch: f_pc = 0x6f, imem_instr = iaddq, f_instr = iaddq
Execute: ALU: + 0x0 0x20 --> 0x20
Writeback: Wrote 0x3 to register %rsi
Cycle 18. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x6f
D: instr = addq, rA = %r10, rB = %rax, valC = 0x0, valP = 0x6f, Stat = AOK
E: instr = nop, valC = 0x0, valA = 0x0, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = BUB
M: instr = mrmovq, Cnd = 1, valE = 0x20, valA = 0x0
dstE = ----, dstM = %r10, Stat = AOK
W: instr = jne, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = AOK
Fetch: f_pc = 0x6f, imem_instr = iaddq, f_instr = iaddq
Memory: Read 0xc000c000c0 from 0x20
Execute: ALU: + 0x0 0x0 --> 0x0
Cycle 19. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x79
D: instr = iaddq, rA = ----, rB = %rdi, valC = 0x8, valP = 0x79, Stat = AOK
E: instr = addq, valC = 0x0, valA = 0xc000c000c0, valB = 0xd000d000d
srcA = %r10, srcB = %rax, dstE = %rax, dstM = ----, Stat = AOK
M: instr = nop, Cnd = 1, valE = 0x0, valA = 0x0
dstE = ----, dstM = ----, Stat = BUB
W: instr = mrmovq, valE = 0x20, valM = 0xc000c000c0, dstE = ----, dstM = %r10, Stat = AOK
Fetch: f_pc = 0x79, imem_instr = iaddq, f_instr = iaddq
Execute: ALU: + 0xc000c000c0 0xd000d000d --> 0xcd00cd00cd
Execute: New cc = Z=0 S=0 O=0
Writeback: Wrote 0xc000c000c0 to register %r10
Cycle 20. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x83
D: instr = iaddq, rA = ----, rB = %rsi, valC = 0xffffffffffffffff, valP = 0x83, Stat = AOK
E: instr = iaddq, valC = 0x8, valA = 0x0, valB = 0x20
srcA = ----, srcB = %rdi, dstE = %rdi, dstM = ----, Stat = AOK
M: instr = addq, Cnd = 1, valE = 0xcd00cd00cd, valA = 0xc000c000c0
dstE = %rax, dstM = ----, Stat = AOK
W: instr = nop, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = BUB
Fetch: f_pc = 0x83, imem_instr = jne, f_instr = jne
Execute: ALU: + 0x8 0x20 --> 0x28
Execute: New cc = Z=0 S=0 O=0
Cycle 21. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x63
D: instr = jne, rA = ----, rB = ----, valC = 0x63, valP = 0x8c, Stat = AOK
E: instr = iaddq, valC = 0xffffffffffffffff, valA = 0x0, valB = 0x3
srcA = ----, srcB = %rsi, dstE = %rsi, dstM = ----, Stat = AOK
M: instr = iaddq, Cnd = 1, valE = 0x28, valA = 0x0
dstE = %rdi, dstM = ----, Stat = AOK
W: instr = addq, valE = 0xcd00cd00cd, valM = 0x0, dstE = %rax, dstM = ----, Stat = AOK
Fetch: f_pc = 0x63, imem_instr = mrmovq, f_instr = mrmovq
Execute: ALU: + 0xffffffffffffffff 0x3 --> 0x2
Execute: New cc = Z=0 S=0 O=0
Writeback: Wrote 0xcd00cd00cd to register %rax
Cycle 22. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x6d
D: instr = mrmovq, rA = %r10, rB = %rdi, valC = 0x0, valP = 0x6d, Stat = AOK
E: instr = jne, valC = 0x63, valA = 0x8c, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = AOK
M: instr = iaddq, Cnd = 1, valE = 0x2, valA = 0x0
dstE = %rsi, dstM = ----, Stat = AOK
W: instr = iaddq, valE = 0x28, valM = 0x0, dstE = %rdi, dstM = ----, Stat = AOK
Fetch: f_pc = 0x6d, imem_instr = addq, f_instr = addq
Execute: instr = jne, cc = Z=0 S=0 O=0, branch taken
Execute: ALU: + 0x0 0x0 --> 0x0
Writeback: Wrote 0x28 to register %rdi
Cycle 23. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x6f
D: instr = addq, rA = %r10, rB = %rax, valC = 0x0, valP = 0x6f, Stat = AOK
E: instr = mrmovq, valC = 0x0, valA = 0x0, valB = 0x28
srcA = ----, srcB = %rdi, dstE = ----, dstM = %r10, Stat = AOK
M: instr = jne, Cnd = 1, valE = 0x0, valA = 0x8c
dstE = ----, dstM = ----, Stat = AOK
W: instr = iaddq, valE = 0x2, valM = 0x0, dstE = %rsi, dstM = ----, Stat = AOK
Fetch: f_pc = 0x6f, imem_instr = iaddq, f_instr = iaddq
Execute: ALU: + 0x0 0x28 --> 0x28
Writeback: Wrote 0x2 to register %rsi
Cycle 24. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x6f
D: instr = addq, rA = %r10, rB = %rax, valC = 0x0, valP = 0x6f, Stat = AOK
E: instr = nop, valC = 0x0, valA = 0x0, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = BUB
M: instr = mrmovq, Cnd = 1, valE = 0x28, valA = 0x0
dstE = ----, dstM = %r10, Stat = AOK
W: instr = jne, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = AOK
Fetch: f_pc = 0x6f, imem_instr = iaddq, f_instr = iaddq
Memory: Read 0xb000b000b00 from 0x28
Execute: ALU: + 0x0 0x0 --> 0x0
Cycle 25. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x79
D: instr = iaddq, rA = ----, rB = %rdi, valC = 0x8, valP = 0x79, Stat = AOK
E: instr = addq, valC = 0x0, valA = 0xb000b000b00, valB = 0xcd00cd00cd
srcA = %r10, srcB = %rax, dstE = %rax, dstM = ----, Stat = AOK
M: instr = nop, Cnd = 1, valE = 0x0, valA = 0x0
dstE = ----, dstM = ----, Stat = BUB
W: instr = mrmovq, valE = 0x28, valM = 0xb000b000b00, dstE = ----, dstM = %r10, Stat = AOK
Fetch: f_pc = 0x79, imem_instr = iaddq, f_instr = iaddq
Execute: ALU: + 0xb000b000b00 0xcd00cd00cd --> 0xbcd0bcd0bcd
Execute: New cc = Z=0 S=0 O=0
Writeback: Wrote 0xb000b000b00 to register %r10
Cycle 26. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x83
D: instr = iaddq, rA = ----, rB = %rsi, valC = 0xffffffffffffffff, valP = 0x83, Stat = AOK
E: instr = iaddq, valC = 0x8, valA = 0x0, valB = 0x28
srcA = ----, srcB = %rdi, dstE = %rdi, dstM = ----, Stat = AOK
M: instr = addq, Cnd = 1, valE = 0xbcd0bcd0bcd, valA = 0xb000b000b00
dstE = %rax, dstM = ----, Stat = AOK
W: instr = nop, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = BUB
Fetch: f_pc = 0x83, imem_instr = jne, f_instr = jne
Execute: ALU: + 0x8 0x28 --> 0x30
Execute: New cc = Z=0 S=0 O=0
Cycle 27. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x63
D: instr = jne, rA = ----, rB = ----, valC = 0x63, valP = 0x8c, Stat = AOK
E: instr = iaddq, valC = 0xffffffffffffffff, valA = 0x0, valB = 0x2
srcA = ----, srcB = %rsi, dstE = %rsi, dstM = ----, Stat = AOK
M: instr = iaddq, Cnd = 1, valE = 0x30, valA = 0x0
dstE = %rdi, dstM = ----, Stat = AOK
W: instr = addq, valE = 0xbcd0bcd0bcd, valM = 0x0, dstE = %rax, dstM = ----, Stat = AOK
Fetch: f_pc = 0x63, imem_instr = mrmovq, f_instr = mrmovq
Execute: ALU: + 0xffffffffffffffff 0x2 --> 0x1
Execute: New cc = Z=0 S=0 O=0
Writeback: Wrote 0xbcd0bcd0bcd to register %rax
Cycle 28. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x6d
D: instr = mrmovq, rA = %r10, rB = %rdi, valC = 0x0, valP = 0x6d, Stat = AOK
E: instr = jne, valC = 0x63, valA = 0x8c, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = AOK
M: instr = iaddq, Cnd = 1, valE = 0x1, valA = 0x0
dstE = %rsi, dstM = ----, Stat = AOK
W: instr = iaddq, valE = 0x30, valM = 0x0, dstE = %rdi, dstM = ----, Stat = AOK
Fetch: f_pc = 0x6d, imem_instr = addq, f_instr = addq
Execute: instr = jne, cc = Z=0 S=0 O=0, branch taken
Execute: ALU: + 0x0 0x0 --> 0x0
Writeback: Wrote 0x30 to register %rdi
Cycle 29. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x6f
D: instr = addq, rA = %r10, rB = %rax, valC = 0x0, valP = 0x6f, Stat = AOK
E: instr = mrmovq, valC = 0x0, valA = 0x0, valB = 0x30
srcA = ----, srcB = %rdi, dstE = ----, dstM = %r10, Stat = AOK
M: instr = jne, Cnd = 1, valE = 0x0, valA = 0x8c
dstE = ----, dstM = ----, Stat = AOK
W: instr = iaddq, valE = 0x1, valM = 0x0, dstE = %rsi, dstM = ----, Stat = AOK
Fetch: f_pc = 0x6f, imem_instr = iaddq, f_instr = iaddq
Execute: ALU: + 0x0 0x30 --> 0x30
Writeback: Wrote 0x1 to register %rsi
Cycle 30. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x6f
D: instr = addq, rA = %r10, rB = %rax, valC = 0x0, valP = 0x6f, Stat = AOK
E: instr = nop, valC = 0x0, valA = 0x0, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = BUB
M: instr = mrmovq, Cnd = 1, valE = 0x30, valA = 0x0
dstE = ----, dstM = %r10, Stat = AOK
W: instr = jne, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = AOK
Fetch: f_pc = 0x6f, imem_instr = iaddq, f_instr = iaddq
Memory: Read 0xa000a000a000 from 0x30
Execute: ALU: + 0x0 0x0 --> 0x0
Cycle 31. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x79
D: instr = iaddq, rA = ----, rB = %rdi, valC = 0x8, valP = 0x79, Stat = AOK
E: instr = addq, valC = 0x0, valA = 0xa000a000a000, valB = 0xbcd0bcd0bcd
srcA = %r10, srcB = %rax, dstE = %rax, dstM = ----, Stat = AOK
M: instr = nop, Cnd = 1, valE = 0x0, valA = 0x0
dstE = ----, dstM = ----, Stat = BUB
W: instr = mrmovq, valE = 0x30, valM = 0xa000a000a000, dstE = ----, dstM = %r10, Stat = AOK
Fetch: f_pc = 0x79, imem_instr = iaddq, f_instr = iaddq
Execute: ALU: + 0xa000a000a000 0xbcd0bcd0bcd --> 0xabcdabcdabcd
Execute: New cc = Z=0 S=0 O=0
Writeback: Wrote 0xa000a000a000 to register %r10
Cycle 32. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x83
D: instr = iaddq, rA = ----, rB = %rsi, valC = 0xffffffffffffffff, valP = 0x83, Stat = AOK
E: instr = iaddq, valC = 0x8, valA = 0x0, valB = 0x30
srcA = ----, srcB = %rdi, dstE = %rdi, dstM = ----, Stat = AOK
M: instr = addq, Cnd = 1, valE = 0xabcdabcdabcd, valA = 0xa000a000a000
dstE = %rax, dstM = ----, Stat = AOK
W: instr = nop, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = BUB
Fetch: f_pc = 0x83, imem_instr = jne, f_instr = jne
Execute: ALU: + 0x8 0x30 --> 0x38
Execute: New cc = Z=0 S=0 O=0
Cycle 33. CC=Z=0 S=0 O=0, Stat=AOK
F: predPC = 0x63
D: instr = jne, rA = ----, rB = ----, valC = 0x63, valP = 0x8c, Stat = AOK
E: instr = iaddq, valC = 0xffffffffffffffff, valA = 0x0, valB = 0x1
srcA = ----, srcB = %rsi, dstE = %rsi, dstM = ----, Stat = AOK
M: instr = iaddq, Cnd = 1, valE = 0x38, valA = 0x0
dstE = %rdi, dstM = ----, Stat = AOK
W: instr = addq, valE = 0xabcdabcdabcd, valM = 0x0, dstE = %rax, dstM = ----, Stat = AOK
Fetch: f_pc = 0x63, imem_instr = mrmovq, f_instr = mrmovq
Execute: ALU: + 0xffffffffffffffff 0x1 --> 0x0
Execute: New cc = Z=1 S=0 O=0
Writeback: Wrote 0xabcdabcdabcd to register %rax
Cycle 34. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0x6d
D: instr = mrmovq, rA = %r10, rB = %rdi, valC = 0x0, valP = 0x6d, Stat = AOK
E: instr = jne, valC = 0x63, valA = 0x8c, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = AOK
M: instr = iaddq, Cnd = 1, valE = 0x0, valA = 0x0
dstE = %rsi, dstM = ----, Stat = AOK
W: instr = iaddq, valE = 0x38, valM = 0x0, dstE = %rdi, dstM = ----, Stat = AOK
Fetch: f_pc = 0x6d, imem_instr = addq, f_instr = addq
Execute: instr = jne, cc = Z=1 S=0 O=0, branch not taken
Execute: ALU: + 0x0 0x0 --> 0x0
Writeback: Wrote 0x38 to register %rdi
Cycle 35. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0x6f
D: instr = nop, rA = ----, rB = ----, valC = 0x0, valP = 0x0, Stat = BUB
E: instr = nop, valC = 0x0, valA = 0x0, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = BUB
M: instr = jne, Cnd = 0, valE = 0x0, valA = 0x8c
dstE = ----, dstM = ----, Stat = AOK
W: instr = iaddq, valE = 0x0, valM = 0x0, dstE = %rsi, dstM = ----, Stat = AOK
Fetch: f_pc = 0x8c, imem_instr = ret, f_instr = ret
Execute: ALU: + 0x0 0x0 --> 0x0
Writeback: Wrote 0x0 to register %rsi
Cycle 36. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0x8d
D: instr = ret, rA = ----, rB = ----, valC = 0x0, valP = 0x8d, Stat = AOK
E: instr = nop, valC = 0x0, valA = 0x0, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = BUB
M: instr = nop, Cnd = 1, valE = 0x0, valA = 0x0
dstE = ----, dstM = ----, Stat = BUB
W: instr = jne, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = AOK
Fetch: f_pc = 0x8d, imem_instr = halt, f_instr = halt
Execute: ALU: + 0x0 0x0 --> 0x0
Cycle 37. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0x8d
D: instr = nop, rA = ----, rB = ----, valC = 0x0, valP = 0x0, Stat = BUB
E: instr = ret, valC = 0x0, valA = 0xf0, valB = 0xf0
srcA = %rsp, srcB = %rsp, dstE = %rsp, dstM = ----, Stat = AOK
M: instr = nop, Cnd = 1, valE = 0x0, valA = 0x0
dstE = ----, dstM = ----, Stat = BUB
W: instr = nop, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = BUB
Fetch: f_pc = 0x8d, imem_instr = halt, f_instr = halt
Execute: ALU: + 0x8 0xf0 --> 0xf8
Cycle 38. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0x8d
D: instr = nop, rA = ----, rB = ----, valC = 0x0, valP = 0x0, Stat = BUB
E: instr = nop, valC = 0x0, valA = 0x0, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = BUB
M: instr = ret, Cnd = 1, valE = 0xf8, valA = 0xf0
dstE = %rsp, dstM = ----, Stat = AOK
W: instr = nop, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = BUB
Fetch: f_pc = 0x8d, imem_instr = halt, f_instr = halt
Memory: Read 0x55 from 0xf0
Execute: ALU: + 0x0 0x0 --> 0x0
Cycle 39. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0x8d
D: instr = nop, rA = ----, rB = ----, valC = 0x0, valP = 0x0, Stat = BUB
E: instr = nop, valC = 0x0, valA = 0x0, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = BUB
M: instr = nop, Cnd = 1, valE = 0x0, valA = 0x0
dstE = ----, dstM = ----, Stat = BUB
W: instr = ret, valE = 0xf8, valM = 0x55, dstE = %rsp, dstM = ----, Stat = AOK
Fetch: f_pc = 0x55, imem_instr = ret, f_instr = ret
Execute: ALU: + 0x0 0x0 --> 0x0
Writeback: Wrote 0xf8 to register %rsp
Cycle 40. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0x56
D: instr = ret, rA = ----, rB = ----, valC = 0x0, valP = 0x56, Stat = AOK
E: instr = nop, valC = 0x0, valA = 0x0, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = BUB
M: instr = nop, Cnd = 1, valE = 0x0, valA = 0x0
dstE = ----, dstM = ----, Stat = BUB
W: instr = nop, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = BUB
Fetch: f_pc = 0x56, imem_instr = xorq, f_instr = xorq
Execute: ALU: + 0x0 0x0 --> 0x0
Cycle 41. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0x56
D: instr = nop, rA = ----, rB = ----, valC = 0x0, valP = 0x0, Stat = BUB
E: instr = ret, valC = 0x0, valA = 0xf8, valB = 0xf8
srcA = %rsp, srcB = %rsp, dstE = %rsp, dstM = ----, Stat = AOK
M: instr = nop, Cnd = 1, valE = 0x0, valA = 0x0
dstE = ----, dstM = ----, Stat = BUB
W: instr = nop, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = BUB
Fetch: f_pc = 0x56, imem_instr = xorq, f_instr = xorq
Execute: ALU: + 0x8 0xf8 --> 0x100
Cycle 42. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0x56
D: instr = nop, rA = ----, rB = ----, valC = 0x0, valP = 0x0, Stat = BUB
E: instr = nop, valC = 0x0, valA = 0x0, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = BUB
M: instr = ret, Cnd = 1, valE = 0x100, valA = 0xf8
dstE = %rsp, dstM = ----, Stat = AOK
W: instr = nop, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = BUB
Fetch: f_pc = 0x56, imem_instr = xorq, f_instr = xorq
Memory: Read 0x13 from 0xf8
Execute: ALU: + 0x0 0x0 --> 0x0
Cycle 43. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0x56
D: instr = nop, rA = ----, rB = ----, valC = 0x0, valP = 0x0, Stat = BUB
E: instr = nop, valC = 0x0, valA = 0x0, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = BUB
M: instr = nop, Cnd = 1, valE = 0x0, valA = 0x0
dstE = ----, dstM = ----, Stat = BUB
W: instr = ret, valE = 0x100, valM = 0x13, dstE = %rsp, dstM = ----, Stat = AOK
Fetch: f_pc = 0x13, imem_instr = halt, f_instr = halt
Execute: ALU: + 0x0 0x0 --> 0x0
Writeback: Wrote 0x100 to register %rsp
Cycle 44. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0x14
D: instr = halt, rA = ----, rB = ----, valC = 0x0, valP = 0x14, Stat = HLT
E: instr = nop, valC = 0x0, valA = 0x0, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = BUB
M: instr = nop, Cnd = 1, valE = 0x0, valA = 0x0
dstE = ----, dstM = ----, Stat = BUB
W: instr = nop, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = BUB
Fetch: f_pc = 0x14, imem_instr = halt, f_instr = halt
Execute: ALU: + 0x0 0x0 --> 0x0
Cycle 45. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0x15
D: instr = halt, rA = ----, rB = ----, valC = 0x0, valP = 0x15, Stat = HLT
E: instr = halt, valC = 0x0, valA = 0x0, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = HLT
M: instr = nop, Cnd = 1, valE = 0x0, valA = 0x0
dstE = ----, dstM = ----, Stat = BUB
W: instr = nop, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = BUB
Fetch: f_pc = 0x15, imem_instr = halt, f_instr = halt
Execute: ALU: + 0x0 0x0 --> 0x0
Cycle 46. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0x16
D: instr = halt, rA = ----, rB = ----, valC = 0x0, valP = 0x16, Stat = HLT
E: instr = halt, valC = 0x0, valA = 0x0, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = HLT
M: instr = halt, Cnd = 1, valE = 0x0, valA = 0x0
dstE = ----, dstM = ----, Stat = HLT
W: instr = nop, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = BUB
Fetch: f_pc = 0x16, imem_instr = halt, f_instr = halt
Execute: ALU: + 0x0 0x0 --> 0x0
Cycle 47. CC=Z=1 S=0 O=0, Stat=AOK
F: predPC = 0x17
D: instr = halt, rA = ----, rB = ----, valC = 0x0, valP = 0x17, Stat = HLT
E: instr = halt, valC = 0x0, valA = 0x0, valB = 0x0
srcA = ----, srcB = ----, dstE = ----, dstM = ----, Stat = HLT
M: instr = nop, Cnd = 0, valE = 0x0, valA = 0x0
dstE = ----, dstM = ----, Stat = BUB
W: instr = halt, valE = 0x0, valM = 0x0, dstE = ----, dstM = ----, Stat = HLT
Fetch: f_pc = 0x17, imem_instr = halt, f_instr = halt
Execute: ALU: + 0x0 0x0 --> 0x0
48 instructions executed
Status = HLT
Condition Codes: Z=1 S=0 O=0
Changed Register State:
%rax: 0x0000000000000000 0x0000abcdabcdabcd
%rsp: 0x0000000000000000 0x0000000000000100
%rdi: 0x0000000000000000 0x0000000000000038
%r10: 0x0000000000000000 0x0000a000a000a000
Changed Memory State:
0x00f0: 0x0000000000000000 0x0000000000000055
0x00f8: 0x0000000000000000 0x0000000000000013
ISA Check Succeeds
CPI: 44 cycles/32 instructions = 1.38
bernard@aqua:~/code/csapp/archlab/sim/pipe$ cd ../ptest; make SIM=../pipe/psim
./optest.pl -s ../pipe/psim
Simulating with ../pipe/psim
All 49 ISA Checks Succeed
./jtest.pl -s ../pipe/psim
Simulating with ../pipe/psim
All 64 ISA Checks Succeed
./ctest.pl -s ../pipe/psim
Simulating with ../pipe/psim
All 22 ISA Checks Succeed
./htest.pl -s ../pipe/psim
Simulating with ../pipe/psim
All 600 ISA Checks Succeed
bernard@aqua:~/code/csapp/archlab/sim/ptest$ make SIM=../pipe/psim TFLAGS=-i
./optest.pl -s ../pipe/psim -i
Simulating with ../pipe/psim
All 58 ISA Checks Succeed
./jtest.pl -s ../pipe/psim -i
Simulating with ../pipe/psim
All 96 ISA Checks Succeed
./ctest.pl -s ../pipe/psim -i
Simulating with ../pipe/psim
All 22 ISA Checks Succeed
./htest.pl -s ../pipe/psim -i
Simulating with ../pipe/psim
All 756 ISA Checks Succeed
bernard@aqua:~/code/csapp/archlab/sim/ptest$ cd ../pipe/
bernard@aqua:~/code/csapp/archlab/sim/pipe$ ls
benchmark.pl Makefile pipe-full.c pipe-std.c sdriver.yo
check-len.pl ncopy.c pipe-full.hcl pipe-std.hcl sdriver.ys
correctness.pl ncopy.ys pipe-lf.hcl pipe.tcl sim.h
gen-driver.pl pipe-1w.hcl pipeline.h psim stages.h
ldriver.yo pipe-broken.hcl pipe-nobypass.hcl psim.c
ldriver.ys pipe-btfnt.hcl pipe-nt.hcl README
bernard@aqua:~/code/csapp/archlab/sim/pipe$ ./correctness.pl
Simulating with instruction set simulator yis
ncopy
0 OK
1 OK
2 OK
3 OK
4 OK
5 OK
6 OK
7 OK
8 OK
9 OK
10 OK
11 OK
12 OK
13 OK
14 OK
15 OK
16 OK
17 OK
18 OK
19 OK
20 OK
21 OK
22 OK
23 OK
24 OK
25 OK
26 OK
27 OK
28 OK
29 OK
30 OK
31 OK
32 OK
33 OK
34 OK
35 OK
36 OK
37 OK
38 OK
39 OK
40 OK
41 OK
42 OK
43 OK
44 OK
45 OK
46 OK
47 OK
48 OK
49 OK
50 OK
51 OK
52 OK
53 OK
54 OK
55 OK
56 OK
57 OK
58 OK
59 OK
60 OK
61 OK
62 OK
63 OK
64 OK
128 OK
192 OK
256 OK
68/68 pass correctness test
bernard@aqua:~/code/csapp/archlab/sim/pipe$ ./benchmark.pl
ncopy
0 13
1 29 29.00
2 45 22.50
3 57 19.00
4 73 18.25
5 85 17.00
6 101 16.83
7 113 16.14
8 129 16.12
9 141 15.67
10 157 15.70
11 169 15.36
12 185 15.42
13 197 15.15
14 213 15.21
15 225 15.00
16 241 15.06
17 253 14.88
18 269 14.94
19 281 14.79
20 297 14.85
21 309 14.71
22 325 14.77
23 337 14.65
24 353 14.71
25 365 14.60
26 381 14.65
27 393 14.56
28 409 14.61
29 421 14.52
30 437 14.57
31 449 14.48
32 465 14.53
33 477 14.45
34 493 14.50
35 505 14.43
36 521 14.47
37 533 14.41
38 549 14.45
39 561 14.38
40 577 14.43
41 589 14.37
42 605 14.40
43 617 14.35
44 633 14.39
45 645 14.33
46 661 14.37
47 673 14.32
48 689 14.35
49 701 14.31
50 717 14.34
51 729 14.29
52 745 14.33
53 757 14.28
54 773 14.31
55 785 14.27
56 801 14.30
57 813 14.26
58 829 14.29
59 841 14.25
60 857 14.28
61 869 14.25
62 885 14.27
63 897 14.24
64 913 14.27
Average CPE 15.18
Score 0.0/60.0
环境配置成功。
林夕的代码得分很高，但无法通过 cd ../ptest; make SIM=../pipe/psim和make SIM=../pipe/psim TFLAGS=-i两项测试。
经过我的实验，可以判断其代码的问题出在下面这一段：
# Predict next value of PC
# JXX时我们选用小的值，这样往前跳就预测成功，往后跳就预测失败，这在循环很有用
word f_predPC = [
f_icode == IJXX && f_ifun != UNCOND && f_valC < f_valP : f_valC;
f_icode == IJXX && f_ifun != UNCOND && f_valC >= f_valP : f_valP;
f_icode == ICALL : f_valC;
1 : f_valP;
];
bernard@aqua:~/code/csapp/archlab/sim/pipe$ ./correctness.pl
Simulating with instruction set simulator yis
ncopy
0 OK
1 OK
2 OK
3 OK
4 OK
5 OK
6 OK
7 OK
8 OK
9 OK
10 OK
11 OK
12 OK
13 OK
14 OK
15 OK
16 OK
17 OK
18 OK
19 OK
20 OK
21 OK
22 OK
23 OK
24 OK
25 OK
26 OK
27 OK
28 OK
29 OK
30 OK
31 OK
32 OK
33 OK
34 OK
35 OK
36 OK
37 OK
38 OK
39 OK
40 OK
41 OK
42 OK
43 OK
44 OK
45 OK
46 OK
47 OK
48 OK
49 OK
50 OK
51 OK
52 OK
53 OK
54 OK
55 OK
56 OK
57 OK
58 OK
59 OK
60 OK
61 OK
62 OK
63 OK
64 OK
128 OK
192 OK
256 OK
68/68 pass correctness test
bernard@aqua:~/code/csapp/archlab/sim/pipe$ ./benchmark.pl
ncopy
0 18
1 26 26.00
2 33 16.50
3 41 13.67
4 48 12.00
5 56 11.20
6 63 10.50
7 71 10.14
8 74 9.25
9 72 8.00
10 79 7.90
11 87 7.91
12 94 7.83
13 102 7.85
14 109 7.79
15 117 7.80
16 124 7.75
17 128 7.53
18 125 6.94
19 133 7.00
20 140 7.00
21 148 7.05
22 155 7.05
23 163 7.09
24 170 7.08
25 178 7.12
26 181 6.96
27 179 6.63
28 186 6.64
29 194 6.69
30 201 6.70
31 209 6.74
32 216 6.75
33 224 6.79
34 231 6.79
35 235 6.71
36 232 6.44
37 240 6.49
38 247 6.50
39 255 6.54
40 262 6.55
41 270 6.59
42 277 6.60
43 285 6.63
44 288 6.55
45 286 6.36
46 293 6.37
47 301 6.40
48 308 6.42
49 316 6.45
50 323 6.46
51 331 6.49
52 338 6.50
53 342 6.45
54 339 6.28
55 347 6.31
56 354 6.32
57 362 6.35
58 369 6.36
59 377 6.39
60 384 6.40
61 392 6.43
62 395 6.37
63 393 6.24
64 400 6.25
Average CPE 7.65
Score 56.9/60.0
bernard@aqua:~/code/csapp/archlab/sim/pipe$ cd ../ptest; make SIM=../pipe/psim
./optest.pl -s ../pipe/psim
Simulating with ../pipe/psim
All 49 ISA Checks Succeed
./jtest.pl -s ../pipe/psim
Simulating with ../pipe/psim
Test jf-jmp-32-32 failed
Test jf-jmp-32-64 failed
Test jf-jmp-64-32 failed
Test jf-jmp-64-64 failed
Test jb-jmp-32-32 failed
Test jb-jmp-32-64 failed
Test jb-jmp-64-32 failed
Test jb-jmp-64-64 failed
Test jb-jle-32-32 failed
Test jb-jle-32-64 failed
Test jb-jle-64-32 failed
Test jb-jle-64-64 failed
Test jb-jl-32-32 failed
Test jb-jl-32-64 failed
Test jb-jl-64-32 failed
Test jb-jl-64-64 failed
Test jb-je-32-32 failed
Test jb-je-32-64 failed
Test jb-je-64-32 failed
Test jb-je-64-64 failed
Test jb-jne-32-32 failed
Test jb-jne-32-64 failed
Test jb-jne-64-32 failed
Test jb-jne-64-64 failed
Test jb-jge-32-32 failed
Test jb-jge-32-64 failed
Test jb-jge-64-32 failed
Test jb-jge-64-64 failed
Test jb-jg-32-32 failed
Test jb-jg-32-64 failed
Test jb-jg-64-32 failed
Test jb-jg-64-64 failed
Test jb-call-32-32 failed
Test jb-call-32-64 failed
Test jb-call-64-32 failed
Test jb-call-64-64 failed
36/64 ISA Checks Failed
./ctest.pl -s ../pipe/psim
Simulating with ../pipe/psim
All 22 ISA Checks Succeed
./htest.pl -s ../pipe/psim
Simulating with ../pipe/psim
All 600 ISA Checks Succeed
bernard@aqua:~/code/csapp/archlab/sim/ptest$ make SIM=../pipe/psim TFLAGS=-i
./optest.pl -s ../pipe/psim -i
Simulating with ../pipe/psim
All 58 ISA Checks Succeed
./jtest.pl -s ../pipe/psim -i
Simulating with ../pipe/psim
Test jf-jmp-32-32 failed
Test jf-jmp-32-64 failed
Test jf-jmp-64-32 failed
Test jf-jmp-64-64 failed
Test jb-jmp-32-32 failed
Test jb-jmp-32-64 failed
Test jb-jmp-64-32 failed
Test jb-jmp-64-64 failed
Test jb-jle-32-32 failed
Test jb-jle-32-64 failed
Test jb-jle-64-32 failed
Test jb-jle-64-64 failed
Test jb-jl-32-32 failed
Test jb-jl-32-64 failed
Test jb-jl-64-32 failed
Test jb-jl-64-64 failed
Test jb-je-32-32 failed
Test jb-je-32-64 failed
Test jb-je-64-32 failed
Test jb-je-64-64 failed
Test jb-jne-32-32 failed
Test jb-jne-32-64 failed
Test jb-jne-64-32 failed
Test jb-jne-64-64 failed
Test jb-jge-32-32 failed
Test jb-jge-32-64 failed
Test jb-jge-64-32 failed
Test jb-jge-64-64 failed
Test jb-jg-32-32 failed
Test jb-jg-32-64 failed
Test jb-jg-64-32 failed
Test jb-jg-64-64 failed
Test jb-call-32-32 failed
Test jb-call-32-64 failed
Test jb-call-64-32 failed
Test jb-call-64-64 failed
Test ji-jmp-32-32 failed
Test ji-jmp-32-64 failed
Test ji-jmp-64-32 failed
Test ji-jmp-64-64 failed
40/96 ISA Checks Failed
./ctest.pl -s ../pipe/psim -i
Simulating with ../pipe/psim
All 22 ISA Checks Succeed
./htest.pl -s ../pipe/psim -i
Simulating with ../pipe/psim
All 756 ISA Checks Succeed
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