rewrite client function compiler

2026-05-11 07:29:25 -07:00
parent 2f2a0bcf2b
commit e78e2ba887
174 changed files with 3931 additions and 5807 deletions
@@ -0,0 +1,43 @@
+# This file defines the following function:
+#   write_address_of_code(
+#     const void* patch_code,
+#     size_t patch_code_size,
+#     void** ptr_addr);
+# This function allocates memory for patch_code, copies patch_code to that memory, then writes the address of the
+# allocated code at the specified pointer. The allocated memory is never freed. This function pops its arguments off
+# the stack before returning.
+
+.versions 59NJ 59NL
+
+write_call_to_code:
+  # [esp + 0x04] = code ptr
+  # [esp + 0x08] = code size
+  # [esp + 0x0C] = ptr addr
+
+  # Allocate memory for the copied code
+  mov       ecx, [<VERS 0x00AA8F84 0x00AAB404>]
+  push      dword [esp + 0x08]
+  mov       eax, <VERS 0x007A984C 0x007A8A38>
+  call      eax  # malloc7
+  test      eax, eax
+  je        done
+
+  # Copy the code to the newly-allocated memory
+  # eax = dest pointer (from malloc7 call above)
+  mov       edx, [esp + 0x04]  # edx = source pointer
+  mov       ecx, [esp + 0x08]  # ecx = source size
+  push      ebx
+memcpy_again:
+  dec       ecx
+  mov       bl, [edx + ecx]  # Copy one byte from source to dest
+  mov       [eax + ecx], bl
+  test      ecx, ecx
+  jne       memcpy_again
+  pop       ebx
+
+  # Write the address
+  mov       ecx, [esp + 0x0C]
+  mov       [ecx], eax
+
+done:
+  ret       0x0C