diff --git a/Makefile b/Makefile
index 5a463b5e..9760fc81 100644
--- a/Makefile
+++ b/Makefile
@@ -354,6 +354,8 @@ default: all
 
 LD_SCRIPT = $(TARGET).ld
 
+rom: $(ROM)
+
 all: $(BUILD_DIR) $(BUILD_DIR)/$(ROM) verify
 
 distclean:
@@ -369,7 +371,12 @@ split:
 	rm -rf $(DATA_DIRS) $(ASM_DIRS) && ./tools/n64splat/split.py $(SPLAT_YAML)
 
 setup: distclean submodules split
-	
+
+expected: 
+	$(RM) -r expected/
+	mkdir -p expected/
+	cp -r $(BUILD_DIR) expected/$(BUILD_DIR)
+
 $(BUILD_DIR):
 	echo $(C_FILES)
 	mkdir $(BUILD_DIR)
@@ -379,7 +386,7 @@ $(BUILD_DIR)/$(LD_SCRIPT): $(LD_SCRIPT)
 	$(CPP) -P -DBUILD_DIR=$(BUILD_DIR) -o $@ $<
 
 $(BUILD_DIR)/$(TARGET).bin: $(BUILD_DIR)/$(TARGET).elf
-	$(OBJCOPY) $< $@ -O binary
+	$(OBJCOPY) $< $@ -O binary --gap-fill 0xFF
 
 $(BUILD_DIR)/$(TARGET).elf: $(O_FILES) $(BUILD_DIR)/$(LD_SCRIPT)
 	@$(LD) $(LDFLAGS) -o $@
diff --git a/splat.yaml b/splat.yaml
index e4b4d6f6..2a87c51d 100644
--- a/splat.yaml
+++ b/splat.yaml
@@ -55,8 +55,9 @@ segments:
     - [0xC030, c] # extra sprites loader
     - [0xC3D0, asm, exception_set] # exception functions
     - [0xC3F0, hasm, yay0] # Yay0 decoder
-    - [0xC4B0, bin, libleo_bootdisk]  # These are libleo's bootdisk and bootstrap files, but
-    - [0xC910, bin, libleo_bootstrap] # have issues being disassembled, so are bins for now.
+    - [0xC4A0, hasm, abs] # abs function
+    - [0xC4B0, asm, libleo_bootdisk]  # These are libleo's bootdisk and bootstrap files, but
+    - [0xC910, hasm, libleo/bootstrap]
     - [0xC970, c]
     - [0xCE80, c] #
     - [0xD470, c] #
@@ -1485,11 +1486,17 @@ segments:
   - [0x798CD0, bin]
   - [0x7994B0, bin]
   - [0x79AFB0, bin]
-  - [0x79B8F0, bin] # not a file, just so it doesnt complain
-  - [0x7C0000]
+  - [0x79B8F0]
   
   # rest of ROM.. part 2. This area and beyond NEEDS to be hard-aligned to this address.
   # for the ROM to be shiftable, we need a way to fix this area beyond here to this address and for the prior area
   # to be filled with FFs instead of being binned. TODO: Make it shift
-  - [0x7C0000, bin]
+  - name: late_assets
+    type: code
+    bss_size: 0x0
+    start: 0x7C0000
+    vram: 0x8FC00000 # unknown vram. Another unused one? Might be 8FC00000?
+    ld_align_segment_start: 0x7C0000
+    subsegments:
+    - [0x7C0000, bin]
   - [0x2000000]
diff --git a/src/libleo/bootstrap.s b/src/libleo/bootstrap.s
new file mode 100644
index 00000000..e2c10959
--- /dev/null
+++ b/src/libleo/bootstrap.s
@@ -0,0 +1,39 @@
+.include "macro.inc"
+
+/* assembler directives */
+.set noat      /* allow manual use of $at */
+.set noreorder /* don't insert nops after branches */
+.set gp=64     /* allow use of 64-bit general purpose registers */
+
+.section .text, "ax"
+
+/* Generated by spimdisasm 1.27.0 */
+
+/* Handwritten function */
+glabel __LeoBootGame3
+/* C910 8000BD10 3C088000 */  lui        $t0, %hi(D_80000000)
+/* C914 8000BD14 25080000 */  addiu      $t0, $t0, %lo(D_80000000)
+/* C918 8000BD18 25094000 */  addiu      $t1, $t0, 0x4000
+/* C91C 8000BD1C 2529FFE0 */  addiu      $t1, $t1, -0x20
+/* C920 8000BD20 4080E000 */  mtc0       $zero, $28 /* handwritten instruction */
+/* C924 8000BD24 4080E800 */  mtc0       $zero, $29 /* handwritten instruction */
+.L8000BD28:
+/* C928 8000BD28 BD080000 */  cache      0x08, 0x0($t0) /* handwritten instruction */
+/* C92C 8000BD2C 0109082B */  sltu       $at, $t0, $t1
+/* C930 8000BD30 1420FFFD */  bnez       $at, .L8000BD28
+/* C934 8000BD34 25080020 */   addiu     $t0, $t0, 0x20
+/* C938 8000BD38 3C088000 */  lui        $t0, 0x8000
+/* C93C 8000BD3C 240A2000 */  addiu      $t2, $zero, 0x2000
+/* C940 8000BD40 010A4821 */  addu       $t1, $t0, $t2
+/* C944 8000BD44 2529FFF0 */  addiu      $t1, $t1, -0x10
+.L8000BD48:
+/* C948 8000BD48 BD010000 */  cache      0x01, 0x0($t0) /* handwritten instruction */
+/* C94C 8000BD4C 0109082B */  sltu       $at, $t0, $t1
+/* C950 8000BD50 1420FFFD */  bnez       $at, .L8000BD48
+/* C954 8000BD54 25080010 */   addiu     $t0, $t0, (0x80000010 & 0xFFFF)
+/* C958 8000BD58 00800008 */  jr         $a0
+/* C95C 8000BD5C 00000000 */   nop
+/* C960 8000BD60 00000000 */  nop
+/* C964 8000BD64 00000000 */  nop
+/* C968 8000BD68 00000000 */  nop
+/* C96C 8000BD6C 00000000 */  nop
diff --git a/tools/m2ctx.py b/tools/m2ctx.py
index 2ac74cbc..ba5a600e 100755
--- a/tools/m2ctx.py
+++ b/tools/m2ctx.py
@@ -19,7 +19,7 @@
     "-DVERSION_US",
     "-DTARGET_N64",
     "-D_LANGUAGE_C",
-    "-DF3DEX_GBI",
+    "-DF3DEX_GBI_2",
     "-D_MIPS_SZLONG=32",
     "-ffreestanding",
     "-nostdinc",
diff --git a/tools/symbol_addrs.txt b/tools/symbol_addrs.txt
index b5ebd6d7..1d645a7a 100644
--- a/tools/symbol_addrs.txt
+++ b/tools/symbol_addrs.txt
@@ -203,7 +203,7 @@ LEOwrite_pointer = 0x801006C4;
 LEOc2ctrl_que_buf = 0x801006F0;
 LEOasic_bm_ctl_shadow = 0x801006CC;
 LEOasic_seq_ctl_shadow = 0x801006D0;
-LeoBootGame = 0x8000B8B0;
+LeoBootGame = 0x8000B8B0; // defined:true
 __LeoBootGame2 = 0x8000B9EC;
 __LeoBootGame3 = 0x8000BD10;
 leomain = 0x80051EC0;
@@ -740,3 +740,4 @@ _798CD0_ROM_START = 0x798CD0; // defined:true
 _7994B0_ROM_START = 0x7994B0; // defined:true
 _79AFB0_ROM_START = 0x79AFB0; // defined:true
 _79AFB0_ROM_END = 0x79B8F0; // defined:true
+abs = 0x8000B8A0; // defined:true