Merge branch 'master' of github.com:martmists/pokediamond into pikalax_work

1 files changed, 36 insertions, 0 deletions

diff --git a/arm9/lib/src/GX_g3.c b/arm9/lib/src/GX_g3.c
new file mode 100644
index 00000000..2b5f2941
--- /dev/null
+++ b/arm9/lib/src/GX_g3.c
@@ -0,0 +1,36 @@
+#include "global.h"
+#include "main.h"
+#include "GX.h"
+
+
+ARM_FUNC void G3_BeginMakeDL(struct GXDLInfo *displaylist, void *r1, u32 r2){
+    displaylist->length = r2;
+    displaylist->bottom = r1;
+    displaylist->curr_cmd = r1;
+    displaylist->curr_param = (u32 *)r1 + 1;
+    displaylist->param0_cmd_flg = 0x0;
+}
+
+ARM_FUNC s32 G3_EndMakeDL(struct GXDLInfo *displaylist){
+    if (displaylist->bottom == (u32 *)displaylist->curr_cmd)
+        return 0;
+    //pads the buffer with 0 to 4byte alignment if needed
+    switch((u32)displaylist->curr_cmd & 0x3)
+    {
+    case 0:
+        return displaylist->curr_cmd - (u8 *)displaylist->bottom;
+    case 1:
+        *displaylist->curr_cmd++ = 0x0;
+    case 2:
+        *displaylist->curr_cmd++ = 0x0;
+    case 3:
+        *displaylist->curr_cmd++ = 0x0;
+    }
+    if (displaylist->param0_cmd_flg)
+    {
+        *displaylist->curr_param++ = 0x0;
+        displaylist->param0_cmd_flg = 0x0;
+    }
+    displaylist->curr_cmd = (u8 *)displaylist->curr_param;
+    return displaylist->curr_cmd - (u8 *)displaylist->bottom;
+}