add item pickup patch

system/client-functions/System/ReadMemoryWordDC.sh4.s

@@ -0,0 +1,13 @@
+entry_ptr:
+reloc0:
+  .offsetof start
+
+start:
+  mova   r0, [address]
+  mov.l  r0, [r0]
+  rets
+  mov.l  r0, [r0]
+
+  .align 4
+address:
+  .data  0

system/client-functions/System/ReadMemoryWordX86.x86.s

@@ -0,0 +1,13 @@
+entry_ptr:
+reloc0:
+  .offsetof start
+
+start:
+  call   resume
+address:
+  .data  0
+resume:
+  pop    eax
+  mov    eax, [eax]
+  mov    eax, [eax]
+  ret

system/client-functions/System/WriteMemoryDC.sh4.s

@@ -0,0 +1,33 @@
+.meta name="Write memory"
+.meta description="Writes data to any location in memory"
+
+entry_ptr:
+reloc0:
+  .offsetof start
+
+start:
+  mova    r0, [dest_addr]
+  mov     r4, r0
+  mov.l   r0, [r4]
+  mov.l   r5, [r4 + 4]
+  add     r4, 8
+again:
+  test    r5, r5
+  bt      done
+  mov.b   r6, [r4]
+  mov.b   [r0], r6
+  add     r4, 1
+  add     r0, 1
+  bs      again
+  add     r5, -1
+done:
+  rets
+  nop
+
+  .align  4
+dest_addr:
+  .data   0
+size:
+  .data   0
+
+data_to_write:

system/client-functions/System/WriteMemoryGC.ppc.s

@@ -3,7 +3,7 @@
 
 # This is also the file I've chosen to document how to write code for newserv's
 # functions subsystem. There are three kinds of functions: includes, patches,
-# and general functions. This file, WriteMemory, is a general function. It
+# and general functions. This file, WriteMemoryGC, is a general function. It
 # writes a variable-length block of data to a specified address in the client's
 # memory.
 
@@ -28,7 +28,7 @@
 
 # For example, to use this function to write the bytes 38 00 00 05 to the
 # address 8010521C, send_function_call could be called like this:
-#   auto fn = s->function_code_index->name_to_function.at("WriteMemory");
+#   auto fn = s->function_code_index->name_to_function.at("WriteMemoryGC");
 #   unordered_map<string, uint32_t> label_writes(
 #       {{"dest_addr", 0x8010521C}, {"size", 4}});
 #   string suffix("\x38\x00\x00\x05", 4);
@@ -52,8 +52,8 @@
 # when sending the B2 command. This is needed if the server needs to do
 # something when the B3 response is received. If specified, the index must be in
 # the range 01-FF. The DOL loading functionality, which this function is a part
-# of, uses indexes E0, E1, and E2, but the WriteMemory function can also be used
-# for other purposes.
+# of, uses indexes E0, E1, and E2, but the WriteMemoryGC function can also be
+# used for other purposes.
 .meta index=E1
 
 # To hide a patch from the Patches menu (so it can only be used with the $patch

system/client-functions/System/WriteMemoryX86.x86.s

@@ -0,0 +1,37 @@
+.meta name="Write memory"
+.meta description="Writes data to any location in memory"
+
+entry_ptr:
+reloc0:
+  .offsetof start
+
+start:
+  jmp     get_block_ptr
+get_block_ptr_ret:
+  xchg    ebx, [esp]
+  mov     eax, [ebx]
+  mov     ecx, [ebx + 4]
+  add     ebx, 8
+
+again:
+  test    ecx, ecx
+  jz      done
+  mov     dl, [ebx]
+  mov     [eax], dl
+  inc     ebx
+  inc     eax
+  dec     ecx
+  jmp     again
+
+done:
+  pop     ebx
+  ret
+
+get_block_ptr:
+  call    get_block_ptr_ret
+dest_addr:
+  .data   0
+size:
+  .data   0
+
+data_to_write: