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<title>Assembly Voyageur</title>
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<h1>Assembly Voyager: Embark on Your Journey</h1>
<div class="voyage mb-1">
<div class="voyage-body">
<label>Voyage Directions:</label>
<div>
<h2>i386 Island</h2>
You start off your voyage at i386 island. You find a map, but you're not
sure how to interpret it. Before we go, we should check on the supplies.
It looks like we've got enough of most things:
<ul>
<li>0x28cb958d EAX's</li>
<li>0xb643052 EBX's</li>
<li>0x8e44508f ECX's</li>
<li>0x10231413 EDX's</li>
<li>0xcbb6536f ESI's</li>
<li>0x4ab7291d EDI's</li>
</ul>
Perhaps you can help us decode the map:<br/>
<textarea cols="80" rows="10" disabled="true">lea ecx, [esi+8*edx-3605]
sub esi, ebx
shr esi, 4
not edi
or ecx, ebx
andn ebx, edx, eax
rol edx, 8
and ecx, esi
je label_qwqthrijuy
mov edx, esi
label_qwqthrijuy:
lea eax, [ecx+3101]
lea esi, [ebx+4*ecx+1359]
shl ecx, 14
xor ebx, eax
sal ecx, 8
lea ecx, [edi+4*esi+1864]
add edi, edx
cmpxchg ebx, ecx
and edi, eax
shl eax, 6
andn edi, ebx, esi
and eax, 0x1f
sarx edi, edx, eax
rol esi, 11
shr esi, 12
lea ebx, [edx+8*eax-3202]
and ebx, 0x1f
shlx edi, edx, ebx
</textarea>
</div>
<br/>
<div>
<h2>x86_64 Caves</h2>
Next, we'll stop by the x86_64 caves and do some spelunking.
Unfortunately, we didn't pack any clothes for the 64 degree temperatures
in the caves. Thankfully we know how to convert our supplies from i386
island though:
<ul>
<li>X86_64.RAX = i386.EAX</li>
<li>X86_64.RBX = i386.EBX</li>
<li>X86_64.RCX = i386.ECX</li>
<li>X86_64.RDX = i386.EDX</li>
<li>X86_64.RSI = i386.RSI</li>
<li>X86_64.RDI = i386.EDI</li>
</ul>
However, the map is still confusing to me. Can you help us scout out how
to get to our next location?<br/>
<textarea cols="80" rows="10" disabled="true">xor rsi, rdi
lea rcx, [rbx+2*rax-2074]
rorx rdi, rax, 11
xor rdx, rax
and rdi, 0x1f
sarx rdx, rbx, rdi
test rsi, rax
setz bl
sar rax, 4
ror rax, 7
dec rsi
and rsi, 0x1f
shlx rdx, rbx, rsi
or rbx, rax
and rcx, 0x1f1f
bextr rdi, rbx, rcx
and rax, 0x1f
shrx rdx, rdi, rax
shl rcx, 4
test rdi, rcx
setne al
lea rax, [rdi+4*rsi+3292]
and rcx, 0x1f
sarx rdx, rax, rcx
popcnt rcx, rsi
test rax, rdx
cmovne rcx, rax
bswap rax
sar rdx, 2
inc rax
and rcx, 0x1f1f
bextr rdx, rdi, rcx
cmp rax, rsi
jnz label_iabbhypsko
mov rdi, rsi
label_iabbhypsko:
and rsi, 0x1f
shlx rax, rcx, rsi
sub rdx, rbx
lea rcx, [rdi+2*rax-1854]
test rdi, rbx
cmovz rcx, rbx
ror rdi, 3
test rdx, rdi
cmovne rcx, rdx
lea rsi, [rdx+1863]
lea rdi, [rbx+4*rcx+1648]
shl rbx, 11
shl rdi, 10
test rdx, rdi
jnz label_xnleuwvlyx
mov rcx, rdi
label_xnleuwvlyx:
shl rdi, 11
xor rax, rcx
lea rdx, [rax+1234]
lea rbx, [rax+3561]
sal rsi, 6
andn rcx, rsi, rdx
test rbx, rcx
cmovne rdi, rbx
and rax, 0x1f
sarx rcx, rbx, rax
and rdx, 0x1f
shlx rsi, rdi, rdx
mul rsi
and rdx, 0x1f1f
bextr rax, rbx, rdx
inc rax
sar rax, 8
xor rax, rcx
and rcx, 0x1f
sarx rdi, rsi, rcx
</textarea>
</div>
<br/>
<div>
<h2>AARCH64 Forest</h2>
After making it out of the x86_64 caves, we'll have to make our way
through the treacherous AARCH64 forest. We'll need to trade our spelunking
gear for some hiking equipment, using this guide:
<ul>
<li>AARCH64.X1 = X86_64.RAX</li>
<li>AARCH64.X2 = X86_64.RBX</li>
<li>AARCH64.X3 = X86_64.RCX</li>
<li>AARCH64.X4 = X86_64.RDX</li>
<li>AARCH64.X5 = X86_64.RSI</li>
<li>AARCH64.X6 = X86_64.RDI</li>
</ul>
The map for the AARCH64 forest isn't exactly easy to read, but with luck
we'll make it through.<br/>
<textarea cols="80" rows="10" disabled="true">msub x2, x2, x3, x5
ubfx x2, x3, 10, 7
sub x2, x6, x4, LSR #7
sub x2, x3, x4, ASR #3
add x2, x4, x1, ASR #12
bfi x4, x2, 1, 16
add x6, x4, x2, LSL #8
sub x6, x1, x2, LSL #6
add x4, x3, x1, LSL #11
clz x3, x6
rev x5, x6
sub x2, x5, x4, LSL #15
eon x3, x1, x6
cbnz x2, label_tfuqxxauwf
mov x4, x6
label_tfuqxxauwf:
sub x2, x5, x6, LSL #16
clz x6, x5
add x1, x2, x6, LSR #13
mul x5, x1, x4
msub x1, x1, x2, x6
ubfx x1, x6, 15, 10
mneg x5, x6, x1
sub x4, x1, x2
sub x3, x1, x2, LSL #13
mneg x3, x1, x6
eon x6, x1, x2, LSR 15
sub x1, x5, x4, ASR #15
add x6, x3, x2
clz x1, x2
mov x2, x4, ROR #6
bfi x2, x4, 3, 2
madd x1, x2, x4, x1
orr x3, x5, x2
add x2, x3, x1, ASR #2
neg x1, x3
orr x2, x1, x4
msub x3, x3, x1, x5
eon x5, x4, x6, ASR 14
mov x5, x4, LSR #14
cls x4, x2
rbit x5, x1
mneg x6, x1, x2
cls x2, x1
mov x6, x3, ROR #10
rbit x3, x2
eon x1, x6, x3
madd x2, x6, x5, x2
</textarea>
</div>
<br/>
<div>
<h2>MIPS Mountain</h2>
Next, we'll stop by MIPS mountain and see if we can scale its peaks.
Once again, we'll need to convert our remaining supplies:
<ul>
<li>MIPS.S1 = AARCH64.X1 & 0xffffffff</li>
<li>MIPS.S2 = AARCH64.X2 & 0xffffffff</li>
<li>MIPS.S3 = AARCH64.X3 & 0xffffffff</li>
<li>MIPS.S4 = AARCH64.X4 & 0xffffffff</li>
<li>MIPS.S5 = AARCH64.X5 & 0xffffffff</li>
<li>MIPS.S6 = AARCH64.X6 & 0xffffffff</li>
</ul>
I don't think I'll ever figure these maps out.<br/>
<textarea cols="80" rows="10" disabled="true">beq s3, s4, label_rhmsacvjgb
move s4, s5
label_rhmsacvjgb:
sll s4, s3, 6
beqz s5, label_pvvtecjlyb
move s3, s4
label_pvvtecjlyb:
sra s3, s4, 9
xori s3, s5, 642
nor s1, s2
and s4, s5
srl s2, s4, 14
andi s2, s3, 2728
nor s4, s6
sltu s2, s1, s3
mult s6, s1
mflo s4
mfhi s1
sltu s1, s3, s2
beqz s4, label_ewplgbepmf
move s5, s2
label_ewplgbepmf:
sra s6, s2, 3
srl s6, s1, 6
bne s2, s1, label_wpdbcphkav
move s1, s6
label_wpdbcphkav:
addu s2, s3
mult s1, s6
mflo s1
mfhi s3
bne s6, 2526, label_eykkyuibne
move s5, s4
label_eykkyuibne:
and s6, s3
mult s1, s3
mflo s1
mfhi s5
</textarea>
</div>
<br/>
<div>
<h2>PowerPC Peninsula</h2>
We're almost there. Our final task is to cross the PowerPC peninsula.
Thankfully our mountaineering gear can be repurposed for crossing the
peninsula.
<ul>
<li>PowerPC.R1 = MIPS.S1</li>
<li>PowerPC.R2 = MIPS.S2</li>
<li>PowerPC.R3 = MIPS.S3</li>
<li>PowerPC.R4 = MIPS.S4</li>
<li>PowerPC.R5 = MIPS.S5</li>
<li>PowerPC.R6 = MIPS.S6</li>
</ul>
See if you can interpret the map and help us reach the treasure.<br/>
<textarea cols="80" rows="10" disabled="true">xor r1, r5, r2
or r2, r1, r6
orc r5, r6, r2
andc r2, r1, r6
cmpwi 7, r6, 2679
bne 7, label_juuectiolu
mr r1, r2
label_juuectiolu:
nor r5, r2, r1
addis r1, r4, 821
mulli r5, r6, 2337
rlwnm r4, r6, r1, 14, 11
cntlzw r1, r5
rlwnm r5, r2, r6, 15, 3
rlwimi r6, r3, 13, 3, 1
cmpwi 7, r4, 975
bne 7, label_eaocdljhcl
mr r6, r1
label_eaocdljhcl:
andc r6, r3, r5
andc r3, r4, r6
or r5, r1, r3
cmpw 7, r6, r4
beq 7, label_wcaboevbqt
mr r4, r2
label_wcaboevbqt:
or r5, r1, r3
xor r4, r1, r5
add r3, r6, r2
rlwimi r2, r5, 16, 16, 10
xor r2, r1, r3
cmpwi 7, r6, 695
beq 7, label_pvpgobidcm
mr r3, r5
label_pvpgobidcm:
nand r2, r4, r6
and r2, r4, r5
cmpw 7, r1, r5
beq 7, label_pgwfipkbae
mr r5, r3
label_pgwfipkbae:
add r5, r6, r1
orc r2, r5, r1
rlwnm r6, r1, r2, 7, 11
</textarea>
</div>
<br/>
<div>
</div>
Once you've reached your destination, <a href="/voyage?id=7">let us know what you find.</a>
<br/>
</div>
</div>
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