Merge pull request #152 from mparisi20/master

decompile code_801DBB3C.o and simplify some functions in code_801DB81C.cpp

3 files changed, 111 insertions, 44 deletions

diff --git a/src/code_801DB040.cpp b/src/code_801DB040.cpp
index 088dc2a..ce9740a 100644
--- a/src/code_801DB040.cpp
+++ b/src/code_801DB040.cpp
@@ -53,7 +53,7 @@ gUnkClass1* func_801DB07C(gUnkClass1* p1, BOOL p2)
 

 void func_801DB15C(u32 p1)

 {

-    gUnk8063F2EC = func_801DBD74(p1, 36);

+    gUnk8063F2EC = func_801DBD74(p1, sizeof(gUnkClass1));

 }

 

 static void* func_801DB184(MEMHeapHandle heap, u32 size, u32 p3, u32 p4, gFuncPtr1 p5)

diff --git a/src/code_801DB81C.cpp b/src/code_801DB81C.cpp
index 678fafa..95af182 100644
--- a/src/code_801DB81C.cpp
+++ b/src/code_801DB81C.cpp
@@ -18,7 +18,8 @@ namespace
 static void func_801DB81C(u8 p1);

 static void func_801DB92C(u8 start, u8 width, u32 setOrClear);

 

-static unkClass gUnk80491370[32];

+static const size_t ARR_SIZE = 32;

+static unkClass gUnk80491370[ARR_SIZE];

 static ctorStruct gUnk8063F2F0(1, 4, 0);

 static u32 gUnk8063F2F8;

 static u32 gUnk8063F2FC;

@@ -30,36 +31,17 @@ extern "C" {
 

 static void func_801DB81C(u8 p1)

 {

-    size_t i;

-    size_t new_var;

-    size_t new_var2;

-    size_t *new_var3;

-    size_t *new_var4;

-    size_t *new_var5;

-    new_var = 0;

-    new_var5 = &i;

-    for (i = new_var; i < 32; i++) {

-        gUnk8063F308 = new_var;

+    gUnk8063F308 = 0;

+    for (size_t i = 0; i < ARR_SIZE; i++)

         gUnk80491370[i].unk0 = 0xff;

-    }

-

     LCEnable();

-

-    gUnk8063F2FC = 0xE0000000;

-    i = p1;

-    new_var = 9;

-    gUnk8063F2F8 = i << new_var;

-    if (i) {

-        new_var3 = new_var5;

-        new_var4 = new_var3;

-        new_var3 = new_var4;

-        new_var4 = new_var3;

-        new_var2 = *new_var4;

-        func_801DB92C(0 & 0xFFu, (u8)new_var2, 1);

+    gUnk8063F2FC = (u32)LCGetBase();

+    gUnk8063F2F8 = (u32)(p1 << 9);

+    if (p1) {

+        func_801DB92C(0, p1, 1);

         gUnk80491370[0].unk0 = 0;

-        gUnk80491370[0].unk1 = (u8)*new_var3;

+        gUnk80491370[0].unk1 = p1;

     }

-

     gUnk8063F304 = 0;

 }

 

@@ -113,29 +95,25 @@ asm u32 func_801DB978(u8 p1)
     /* 801DB9F4 001D7654  7C 08 03 A6 */	mtlr r0

     /* 801DB9F8 001D7658  4E 80 00 20 */	blr

 }

+#pragma peephole on

 

 void func_801DB9FC(void)

 {

     u32 i;

     short j;

-    unsigned short new_var;

-    char new_var2;

     u32 *new_var3;

     u32 new_var4;

     u32 *new_var5;

-    new_var = 0xff;

     if (gUnk8063F304 != 1) {

-        new_var2 = 9;

-        i = 31, j = 0;

+        i = ARR_SIZE-1, j = 0;

         new_var3 = &i;

         new_var5 = &new_var4;

         do {

             unsigned char r0 = gUnk80491370[j].unk0;

             new_var4 = *new_var3;

-            if ((((u32) r0) != new_var) && gUnk80491370[j].unk4) {

-                gUnk80491370[j].unk4(0, gUnk8063F2FC + (r0 << new_var2), gUnk80491370[j].unk1);

+            if ((((u32) r0) != 0xff) && gUnk80491370[j].unk4) {

+                gUnk80491370[j].unk4(0, gUnk8063F2FC + (r0 << 9), gUnk80491370[j].unk1);

             }

-

             i = *new_var5;

             j++;

         } while ((i--) != 0);

@@ -147,24 +125,19 @@ void func_801DBA8C(void)
 {

     u32 i;

     short j;

-    unsigned short new_var;

-    char new_var2;

     u32 *new_var3;

     u32 new_var4;

     u32 *new_var5;

-    new_var = 0xff;

     if (gUnk8063F304 != 0) {

-        new_var2 = 9;

-        i = 31, j = 0;

+        i = ARR_SIZE-1, j = 0;

         new_var3 = &i;

         new_var5 = &new_var4;

         do {

             unsigned char r0 = gUnk80491370[j].unk0;

             new_var4 = *new_var3;

-            if ((((u32) r0) != new_var) && gUnk80491370[j].unk4) {

-                gUnk80491370[j].unk4(1, gUnk8063F2FC + (r0 << new_var2), gUnk80491370[j].unk1);

+            if ((((u32) r0) != 0xff) && gUnk80491370[j].unk4) {

+                gUnk80491370[j].unk4(1, gUnk8063F2FC + (r0 << 9), gUnk80491370[j].unk1);

             }

-

             i = *new_var5;

             j++;

         } while ((i--) != 0);

diff --git a/src/code_801DBB3C.cpp b/src/code_801DBB3C.cpp
new file mode 100644
index 0000000..5037b5a
--- /dev/null
+++ b/src/code_801DBB3C.cpp
@@ -0,0 +1,94 @@
+#include "types.h"

+#include "ctorStruct.h"

+#include "Runtime/__mem.h"

+#include "code_801DAAE0.h"

+#include "code_801DB040.h"

+#include "code_801DBB3C.h"

+

+static u32 func_801DBB3C(void);

+static void func_801DBB44(u32);

+static void func_801DBB48(gUnkClass2 *p1, size_t nodes, size_t size);

+

+static gUnkClass2 gUnk80491470[32];

+static ctorStruct gUnk8063F310(1, 4, 0);

+

+extern "C" {

+

+static u32 func_801DBB3C(void)

+{

+    return 0;

+}

+

+static void func_801DBB44(u32)

+{

+    

+}

+static void func_801DBB48(gUnkClass2 *p1, size_t nodes, size_t size)

+{

+    size_t blockSize = (size+7) & ~0x3;

+    p1->unk8 = nodes;

+    p1->unkC = blockSize;

+    u8* data = (u8*)func_801DAD98((nodes + 1) * blockSize);

+    p1->unk10 = data;

+    p1->unk18 = (gUnkClass3*)data;

+    p1->unk14 = data + (nodes * blockSize);

+    u8* next;

+    u8** pnext = &next;

+    size_t i;

+    gUnkClass3* r8 = NULL;

+    for (i = 0; i < nodes; i++) {

+        *pnext = data + blockSize;

+        r8 = (gUnkClass3*)data;

+        ((gUnkClass3*)data)->unk0 = (gUnkClass3*)(*pnext);

+        data = *pnext;

+    }

+    r8->unk0 = 0;

+}

+

+gUnkClass1* func_801DBC58(gUnkClass2* p1)

+{

+    gUnkClass3* r31 = p1->unk18;

+    u32 r30 = func_801DBB3C();

+    func_801DBB44(0);

+    if (r31) {

+        p1->unk18 = r31->unk0;

+        goto passCheck;

+    }

+    func_801DBB44(r30);

+    return NULL;

+passCheck:

+    func_801DBB44(r30);

+    memset(r31, 0, p1->unkC);

+    if (++p1->unk0 > p1->unk4)

+        p1->unk4 = p1->unk0;

+    return &r31->unk4;

+}

+

+void func_801DBD00(gUnkClass2* p1, gUnkClass1* p2)

+{

+    u32 r31;

+    if (p2) {

+        gUnkClass3* r30 = (gUnkClass3*)((u8*)p2 - 4);

+        r30->unk0 = p1->unk18;

+        p1->unk0--;

+        r31 = func_801DBB3C();

+        func_801DBB44(0);

+        p1->unk18 = r30;

+        func_801DBB44(r31);

+    }

+}

+

+gUnkClass2* func_801DBD74(u32 nodes, u32 size)

+{

+    size_t i;

+    for (i = 0; i < 32; i++)

+        if (gUnk80491470[i].unk8 == 0)

+            break;

+    gUnkClass2* r31 = &gUnk80491470[i];

+    if (r31->unk8)

+        return NULL;

+    func_801DBB48(r31, nodes, size);

+    return r31;

+}

+

+}