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resolve_look_at__cross_uz_ux_to_up_proc reviewed

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ed
2026-08-15 19:53:08 -04:00
parent a16c727db2
commit d9b9241e2c
8 changed files with 64 additions and 70 deletions
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code/hello_camera/hello_camera.c
+10 -9
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@@ -150,6 +150,7 @@ internal void resolve_look_at_init(void) {
U4 pin_mask = regfile_abi_mask | (1 << R_ResolveScratch);
RegFile rf = regfile(pin_mask);
#define ralloc() regfile_alloc(& rf)
#define ralloc_v3() { ralloc(), ralloc(), ralloc() }
smem.resolve_look_at_atom_addrs[0] = resolve_look_at__input_and_sub_proc(& ab,
RegUse_(resolve_look_at__input_and_sub_proc) {
@@ -216,16 +217,16 @@ internal void resolve_look_at_init(void) {
});
/* === ATOM 4: cross uz×ux→up === */
U4 r_a_4 = R_T0;
U4 r_b_4 = R_T1;
U4 r_c_4 = R_T2;
U4 r_d_4 = R_T3;
U4 r_f_4 = R_T5; /* out ptr (HARDCODED: scratch+64) */
U4 r_g_4 = R_T6; /* a ptr = scratch+16 */
U4 r_h_4 = R_T7; /* b ptr = scratch+48 */
regfile_reset_to_mask(& rf, pin_mask);
smem.resolve_look_at_atom_addrs[4] = resolve_look_at__cross_uz_ux_to_up_proc(& ab,
R_ResolveScratch,
r_a_4, r_b_4, r_c_4, r_d_4, r_f_4, r_g_4, r_h_4);
RegUse_(resolve_look_at__cross_uz_ux_to_up_proc){
.scratch = R_ResolveScratch,
.a = ralloc_v3(), /* T0 T1 T2 */
.b = ralloc_v3(), /* T3 T5 T6 */
.t0 = ralloc(), /* T7 = up */
.t1 = ralloc(), /* V0 = uz / rt11 */
.t2 = ralloc(), /* V1 = ux / rt22 */
});
/* === ATOM 5: normalize up→uy === */
src_offset = O_(ResolveLookAtScratch, up);