branch delay slot better support.

Still reviewing. Need to see if gte is handled properly.

code/gte_hello/hello_gte.c

@@ -378,7 +378,7 @@ void update(PrimitiveArena* pa, U4* ordering_buf)
 		smem.floor.rot.y += 5;
 	}
 	// --- TAPE DIAGNOSTICS ---
-	if (1)
+	if (0)
 	{
 		LP_ U4 mem_temp_tape[512]; FArena tape_arena; farena_init(& tape_arena, slice_ut_arr(mem_temp_tape));
 		TapeBuilder tb = tb_make_old(& tape_arena); tb_scope(& tb) {

code/gte_hello/hello_gte_tape.c

@@ -112,18 +112,18 @@ MipsAtom_(floor_f3_face) atom_info(atom_phase(floor_f3)
 	mac_load_tri_indices(  R_T0, R_T1, R_T2),
 	mac_gte_load_tri_verts(R_T0, R_T1, R_T2),
 	nop2, gte_cmdw_rotate_translate_perspective_triple, // 2 nops retire the final cpu -> gte writes before RTPT
-	/*nop2,*/ gte_cmdw_nclip,
+	gte_cmdw_nclip,
 
 	/* Culling (Branch forward if Backface) */
-	/*nop2,*/ gte_mv_from_data_r(R_T0, C2_MAC0),
+	gte_mv_from_data_r(R_T0, C2_MAC0),
 	nop, branch_le_zero(R_T0, atom_offset(culling, floor_f3_face_exit)), nop, // required gte -> cpu load-delay slot. 
 	/* Format Primitive */
 	mac_format_f3_color(0xFF, 0xFF, 0xFF),  // RGB-form (R=FF, G=FF, B=FF = white)
 	mac_gte_store_f3_post_rtpt(),
 
 	/* Calculate Depth */
-	/*nop2,*/ gte_avg_sort_z3,
-	/*nop2,*/ gte_mv_from_data_r(R_T1, C2_OTZ),
+	gte_avg_sort_z3,
+	gte_mv_from_data_r(R_T1, C2_OTZ),
 	/* Bounds Check OTZ < 2048 (Branch forward to skip insertion) */
 	add_ui(      R_AT, R_0,  OrderingTbl_Len),
 	set_lt_u(    R_AT, R_T1, R_AT),