Doc setup_game_memory, label syms, add osSyncPrintf support, match funcs (#444)

* Doc setup_game_memory and label syms

* match func_800132F4

* match func label defines

* fix some fake ptrs

* match more code

* Matches

* Add osSyncPrintf support and matches

* Add func equiv to draw_square and add comment to is_debug

2 files changed, 150 insertions, 0 deletions

diff --git a/src/os/is_debug.c b/src/os/is_debug.c
new file mode 100644
index 000000000..0e4fcddda
--- /dev/null
+++ b/src/os/is_debug.c
@@ -0,0 +1,145 @@
+#include "libultra_internal.h"
+#include "libc/stdarg.h"
+#include <string.h>
+#include "printf.h"
+#include <PR/os.h>
+#include "hardware.h"
+
+// Note: This file was very quickly strewn together from oot.
+// Not great but it works.
+
+OSPiHandle* sISVHandle; // official name : is_Handle
+
+typedef struct {
+    /* 0x00 */ u32 magic; // IS64
+    /* 0x04 */ u32 get;
+    /* 0x08 */ u8 unk_08[0x14-0x08];
+    /* 0x14 */ u32 put;
+    /* 0x18 */ u8 unk_18[0x20-0x18];
+    /* 0x20 */ u8 data[0x10000-0x20];
+} ISVDbg;
+
+#define gISVDbgPrnAdrs ((ISVDbg*)0xB3FF0000)
+#define ASCII_TO_U32(a, b, c, d) ((u32)((a << 24) | (b << 16) | (c << 8) | (d << 0)))
+
+void* is_proutSyncPrintf(void* arg, const char* str, u32 count);
+
+s32 __osEPiRawReadIo(OSPiHandle *arg0, u32 devAddr, u32 *data) {
+    register s32 stat;
+    while (stat = HW_REG(PI_STATUS_REG, s32), stat & (PI_STATUS_BUSY | PI_STATUS_IOBUSY | PI_STATUS_ERROR)) {
+        ;
+    }
+    *data = HW_REG(arg0->baseAddress | devAddr, s32);
+    return 0;
+}
+
+s32 osEPiReadIo(OSPiHandle* handle, u32 devAddr, u32* data) {
+    register s32 ret;
+
+    __osPiGetAccess();
+    ret = __osEPiRawReadIo(handle, devAddr, data);
+    __osPiRelAccess();
+
+    return ret;
+}
+
+
+s32 osEPiWriteIo(OSPiHandle* handle, u32 devAddr, u32 data) {
+    register s32 ret;
+
+    __osPiGetAccess();
+    ret = __osEPiRawWriteIo(handle, devAddr, data);
+    __osPiRelAccess();
+
+    return ret;
+}
+
+void isPrintfInit(void) {
+    sISVHandle = osCartRomInit();
+    osEPiWriteIo(sISVHandle, (u32)&gISVDbgPrnAdrs->put, 0);
+    osEPiWriteIo(sISVHandle, (u32)&gISVDbgPrnAdrs->get, 0);
+    osEPiWriteIo(sISVHandle, (u32)&gISVDbgPrnAdrs->magic, ASCII_TO_U32('I', 'S', '6', '4'));
+}
+
+void osSyncPrintfUnused(const char* fmt, ...) {
+    va_list args;
+    va_start(args, fmt);
+
+    _Printf(is_proutSyncPrintf, NULL, fmt, args);
+
+    va_end(args);
+}
+
+void osSyncPrintf(const char* fmt, ...) {
+    va_list args;
+    va_start(args, fmt);
+
+    _Printf(is_proutSyncPrintf, NULL, fmt, args);
+
+    va_end(args);
+}
+
+void print(const char* fmt, ...) {
+    va_list args;
+    va_start(args, fmt);
+
+    _Printf(is_proutSyncPrintf, NULL, fmt, args);
+
+    va_end(args);
+}
+
+// assumption
+void rmonPrintf(const char* fmt, ...) {
+    va_list args;
+    va_start(args, fmt);
+
+    _Printf(is_proutSyncPrintf, NULL, fmt, args);
+
+    va_end(args);
+}
+
+void* is_proutSyncPrintf(void* arg, const char* str, u32 count) {
+    u32 data;
+    s32 pos;
+    s32 start;
+    s32 end;
+
+    osEPiReadIo(sISVHandle, (u32)&gISVDbgPrnAdrs->magic, &data);
+    if (data != ASCII_TO_U32('I', 'S', '6', '4')) {
+        return (void*)1;
+    }
+    osEPiReadIo(sISVHandle, (u32)&gISVDbgPrnAdrs->get, &data);
+    pos = data;
+    osEPiReadIo(sISVHandle, (u32)&gISVDbgPrnAdrs->put, &data);
+    start = data;
+    end = start + count;
+    if (end >= 0xFFE0) {
+        end -= 0xFFE0;
+        if (pos < end || start < pos) {
+            return (void*)1;
+        }
+    } else {
+        if (start < pos && pos < end) {
+            return (void*)1;
+        }
+    }
+    while (count) {
+        u32 addr = (u32)&gISVDbgPrnAdrs->data + (start & 0xFFFFFFC);
+        s32 shift = ((3 - (start & 3)) * 8);
+
+        if (*str) {
+            osEPiReadIo(sISVHandle, addr, &data);
+            osEPiWriteIo(sISVHandle, addr, (*str << shift) | (data & ~(0xFF << shift)));
+
+            start++;
+            if (start >= 0xFFE0) {
+                start -= 0xFFE0;
+            }
+        }
+        count--;
+        str++;
+    }
+    osEPiWriteIo(sISVHandle, (u32)&gISVDbgPrnAdrs->put, start);
+
+    return (void*)1;
+}
diff --git a/src/os/osSyncPrintf.c b/src/os/osSyncPrintf.c
index 41377d13a..26bfc999d 100644
--- a/src/os/osSyncPrintf.c
+++ b/src/os/osSyncPrintf.c
@@ -1,6 +1,9 @@
 #include "libultra_internal.h"
 #include "libc/stdarg.h"
 
+// These funcs defined in is_debug.c
+#ifndef DEBUG
+
 char *osSyncPrintf(char *arg0, const char *arg1, size_t size) {
     // ifdef'd formatting code?
     return (1);
@@ -12,3 +15,5 @@ void rmonPrintf(const char *fmt, ...) {
   _Printf(osSyncPrintf, NULL, fmt, args);
   va_end(args);
 }
+
+#endif // DEBUG