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wip: starting to review and update lua metaprogram with more modeling of gte.

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ed
2026-08-13 18:51:09 -04:00
parent 4688566767
commit 640dab7e61
6 changed files with 284 additions and 61 deletions
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code/hello_camera/hello_camera.atom.c
+6 -11
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@@ -563,17 +563,12 @@ internal MipsAtom* resolve_look_at__matrix_vector_proc(AtomArena_R aa
nop,
/* === Load RT matrix from look_at into C2[0..4] via ctc2 ===
* Exact same sequence as set_gte_mt3s2s4 / C11's ApplyMatrixLV. */
load_word(r_tmp0, r_look_at, 0), nop,
gte_mv_to_ctrl_r(r_tmp0, gte_cr_RT11),
load_word(r_tmp0, r_look_at, 4), nop,
gte_mv_to_ctrl_r(r_tmp0, gte_cr_RT12),
load_word(r_tmp0, r_look_at, 8), nop,
gte_mv_to_ctrl_r(r_tmp0, gte_cr_RT13),
load_word(r_tmp0, r_look_at, 12), nop,
gte_mv_to_ctrl_r(r_tmp0, gte_cr_RT21),
load_half_u(r_tmp0, r_look_at, 16), nop,
gte_mv_to_ctrl_r(r_tmp0, gte_cr_RT22),
* Exact s ame sequence as set_gte_mt3s2s4 / C11's ApplyMatrixLV. */
load_word( r_tmp0, r_look_at, 0), nop, gte_mv_to_ctrl_r(r_tmp0, gte_cr_RT11),
load_word( r_tmp0, r_look_at, 4), nop, gte_mv_to_ctrl_r(r_tmp0, gte_cr_RT12),
load_word( r_tmp0, r_look_at, 8), nop, gte_mv_to_ctrl_r(r_tmp0, gte_cr_RT13),
load_word( r_tmp0, r_look_at, 12), nop, gte_mv_to_ctrl_r(r_tmp0, gte_cr_RT21),
load_half_u(r_tmp0, r_look_at, 16), nop, gte_mv_to_ctrl_r(r_tmp0, gte_cr_RT22),
nop2, /* CTC2 retirement (2 slots × 5 ctc2s) */
/* Load pos = -eye after the matrix load releases r_tmp0. */