Sweet Mercy! Has it been this long? =o.o=

Digging more through my 3DS 9.2 NAND dump found an older format bcmdl.

CTRNAND\title\00040010\00021200\content\0000000b.app (activity log)

simple.bcmdl

Also has file paths for shader.

D:\build\hudson\jobs\NW4C-0_4_0\workspace\NintendoWare\Library\sources\shaders\gfx\gfx_DefaultShader.vsh

D:\build\hudson\jobs\NW4C-0_4_0\workspace\NintendoWare\Library\sources\shaders\gfx\Common.vsh

line_shader.asm
point_shader.asm

This is an older SDK sample.

NintendoWareForCtr-3_2_2-SDK7_1_1-oldModule-20131220-en\NW_CTR\gfx1\demo\data\Graphics\SampleMaterial

simple.bcmdl has been in 3DS activity log since fw 1.0.0.