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Curating duffle, preparing to update metaprogram for latest atom asm ideation. Reviewing the resolve_look_at atoms further...

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ed
2026-08-15 11:21:28 -04:00
parent 7764612325
commit ffc66052f8
13 changed files with 226 additions and 183 deletions
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code/hello_camera/hello_camera.c
+22 -20
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@@ -150,17 +150,19 @@ internal void resolve_look_at_init(void) {
U4 pin_mask = regfile_abi_mask | (1 << R_ResolveScratch);
RegFile rf = regfile(pin_mask);
U4 r_target_ptr = regfile_alloc(& rf);
U4 r_eye_ptr = regfile_alloc(& rf);
U4 r_up_in_ptr = regfile_alloc(& rf);
U4 r_tmp0 = regfile_alloc(& rf);
U4 r_tmp1 = regfile_alloc(& rf);
U4 r_tmp2 = regfile_alloc(& rf);
U4 r_tmp3 = regfile_alloc(& rf);
smem.resolve_look_at_atom_addrs[0] = resolve_look_at__input_and_sub_proc(& ab,
R_ResolveScratch,
r_target_ptr, r_eye_ptr, r_up_in_ptr,
r_tmp0, r_tmp1, r_tmp2, r_tmp3);
RegUse_(resolve_look_at__input_and_sub_proc) {
.scratch = R_ResolveScratch,
.target = regfile_alloc(& rf),
.eye = regfile_alloc(& rf),
.up_in = regfile_alloc(& rf),
.t0 = regfile_alloc(& rf),
.t1 = regfile_alloc(& rf),
.t2 = regfile_alloc(& rf),
.t3 = regfile_alloc(& rf),
.t4 = regfile_alloc(& rf),
}
);
/* === ATOM 1: normalize fwd→uz === */
U2 src_offset = O_(ResolveLookAtScratch, fwd);
@@ -180,16 +182,16 @@ internal void resolve_look_at_init(void) {
});
/* === ATOM 2: cross uz×up_in→right === */
U4 r_a_2 = R_T0;
U4 r_b_2 = R_T1;
U4 r_c_2 = R_T2;
U4 r_d_2 = R_T3;
U4 r_f_2 = R_T5; /* out ptr (HARDCODED in body: scratch+32) */
U4 r_g_2 = R_T6; /* a ptr = scratch+16 */
U4 r_h_2 = R_T7; /* b ptr = scratch+128 */
smem.resolve_look_at_atom_addrs[2] = resolve_look_at__cross_uz_up_in_to_right_proc(& ab,
R_ResolveScratch,
r_a_2, r_b_2, r_c_2, r_d_2, r_f_2, r_g_2, r_h_2);
smem.resolve_look_at_atom_addrs[2] = resolve_look_at__cross_uz_up_into_right_proc(& ab,
RegUse_(resolve_look_at__cross_uz_up_into_right_proc) {
.scratch = R_ResolveScratch,
.a = R_T0, .b = R_T1, .c = R_T2,
.d = R_T3,
.f = R_T5,
.t1 = R_T6,
.t2 = R_T7,
.t0 = R_V0,
});
/* === ATOM 3: normalize right→ux === */
src_offset = O_(ResolveLookAtScratch, right);