diff --git a/stages/hex0/hex0.in b/stages/hex0/hex0.in
index 0176254..37740ab 100644
--- a/stages/hex0/hex0.in
+++ b/stages/hex0/hex0.in
@@ -67,9 +67,9 @@
 # ; alloca 0x1000 bytes on the stack
 # mov rbp, rsp
 48 89 e5
-# sub rsp, 0x1000
-48 81 ec 00 10 00 00
-# ; read 0x800 bytes from stdin into the stack
+# sub rsp, 0x10000, increase this if you want to read more than 0x10000 bytes
+48 81 ec 00 00 01 00
+# ; read 0x10000 bytes from stdin into the stack
 # .READ: (130)
 # xor rax, rax
 48 31 c0
@@ -77,8 +77,8 @@
 48 c7 c7 00 00 00 00
 # mov rsi, rsp
 48 89 e6
-# mov rdx, 0x800
-48 c7 c2 00 08 00 00
+# mov rdx, 0x10000, increase this if you want to read more than 0x10000 bytes
+48 c7 c2 00 00 01 00
 # syscall (sys_read)
 0f 05
 # cmp rax, 0
@@ -97,8 +97,8 @@
 # ; dst = r10
 # mov r10, rsp
 49 89 e2
-# add r10, 0x800
-49 81 c2 00 08 00 00
+# add r10, 0x0000
+49 81 c2 00 00 00 00
 # ; while (pos < end) {
 # ; .L0: (181)
 # cmp r9, r8
@@ -199,8 +199,8 @@ e9 b7 ff ff ff
 48 c7 c7 01 00 00 00
 # mov rsi, rsp
 48 89 e6
-# add rsi, 0x800
-48 81 c6 00 08 00 00
+# add rsi, 0x000
+48 81 c6 00 00 00 00
 # mov rdx, r10
 4c 89 d2
 # sub rdx, rsi