diff

(.venv) fig@LAPTOP-UOUVEO0H:~/repo/oot$ ./first_diff.py -v ntsc-1.0
First difference at ROM addr 0x120C, 0x8000060C is at 0x6C bytes inside 'Main_ThreadEntry' (VRAM: 0x800005A0, VROM: 0x0011A0, SIZE: 0x9C, build/ntsc-1.0/src/boot/idle.o)
Bytes: 25EFBE40 vs 25EFBE30
addiu $t7, $t7, -0x41C0 vs addiu $t7, $t7, -0x41D0
Instruction difference at ROM addr 0xBB55CC, 0x80817BAC is at 0xC bytes inside 'KaleidoScope_DrawEquipmentImage' (VRAM: 0x80817BA0, VROM: 0xBB55C0, SIZE: 0x454, build/ntsc-1.0/src/overlays/misc/ovl_kaleido_scope/z_kaleido_equipment.o)
Bytes: AFB1000C vs 00A08025
sw $s1, 0xC($sp) vs move $s0, $a1
Instruction difference at ROM addr 0xBB5A14, Symbol 'KaleidoScope_DrawPlayerWork' (VRAM: 0x80817FF4, VROM: 0xBB5A14, SIZE: 0x1A4, build/ntsc-1.0/src/overlays/misc/ovl_kaleido_scope/z_kaleido_equipment.o)
Bytes: 27BDFFA0 vs AFBF002C
addiu $sp, $sp, -0x60 vs sw $ra, 0x2C($sp)
Instruction difference at ROM addr 0xBB5BBC, 0x8081819C is at 0x4 bytes inside 'KaleidoScope_DrawEquipment' (VRAM: 0x80818198, VROM: 0xBB5BB8, SIZE: 0x14D8, build/ntsc-1.0/src/overlays/misc/ovl_kaleido_scope/z_kaleido_equipment.o)
Bytes: AFB00020 vs 3C10E700
sw $s0, 0x20($sp) vs lui $s0, 0xE700
Instruction difference at ROM addr 0xE6D490, 0x80AEE1B0 is at 0xB8 bytes inside 'EnMag_DrawImageRGBA32' (VRAM: 0x80AEE0F8, VROM: 0xE6D3D8, SIZE: 0x42C, build/ntsc-1.0/src/overlays/actors/ovl_En_Mag/z_en_mag.o)
Bytes: 0003B880 vs 3C10E800
sll $s7, $v1, 2 vs lui $s0, 0xE800
Instruction difference at ROM addr 0xE6D804, Symbol 'func_80AEEA48_unknown' (VRAM: 0x80AEE524, VROM: 0xE6D804, SIZE: 0x250, build/ntsc-1.0/src/overlays/actors/ovl_En_Mag/z_en_mag.o)
Bytes: 27BDFFE8 vs 8FB60030
addiu $sp, $sp, -0x18 vs lw $s6, 0x30($sp)

Over 1000 differing words, must be a shifted ROM.
Map appears to have shifted just before D_8015BD7C (build/ntsc-1.0/src/code/z_camera.o) -- in D_8015BBA8?