From f2eabdb6257c09cf2890dac5e9737912728542af Mon Sep 17 00:00:00 2001
From: mrb0nk500 <b0nk@b0nk.xyz>
Date: Thu, 2 Feb 2023 17:29:19 -0400
Subject: global: Add rest of Dolphin SDK proper, add MSL, and MetroTRK

Finally, it links properly.
---
 src/Runtime/ptmf.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 src/Runtime/ptmf.c

(limited to 'src/Runtime/ptmf.c')

diff --git a/src/Runtime/ptmf.c b/src/Runtime/ptmf.c
new file mode 100644
index 0000000..b9e8a90
--- /dev/null
+++ b/src/Runtime/ptmf.c
@@ -0,0 +1,45 @@
+
+typedef struct PTMF {
+  long this_delta;  // delta to this pointer
+  long vtbl_offset; // offset in vtable (-1: not a virtual function)
+  union {
+    void* func_addr;    //nonvirtual function address
+    long ventry_offset; // of virtual function entry in vtable
+  } func_data;
+} PTMF;
+
+const PTMF __ptmf_null = {0, 0, 0};
+
+/* clang-format off */
+asm void __ptmf_test(register PTMF* ptmf) {
+  nofralloc
+
+  lwz r5, PTMF.this_delta(ptmf)
+  lwz r6, PTMF.vtbl_offset(ptmf)
+  lwz r7, PTMF.func_data(ptmf)
+  li r3, 1
+  cmpwi cr0, r5, 0
+  cmpwi cr6, r6, 0
+  cmpwi cr7, r7, 0
+  bnelr cr0
+  bnelr cr6
+  bnelr cr7
+  li r3, 0
+  blr
+}
+
+asm void __ptmf_scall(...) {
+  nofralloc
+  lwz r0, PTMF.this_delta(r12)
+  lwz r11, PTMF.vtbl_offset(r12)
+  lwz r12, PTMF.func_data(r12)
+  add r3, r3, r0
+  cmpwi r11, 0
+  blt @1
+  lwzx r12, r3, r12
+  lwzx r12, r12, r11
+@1 
+  mtctr r12
+  bctr
+}
+/* clang-format - on*/
-- 
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