some more review. not working still.

code/duffle/gen/macs.h

@@ -175,68 +175,6 @@ WORD_COUNT(mac_gte_sqr_v3, 8)
 ,	shift_aright_var(r_dz, r_dz, r_shift)
 WORD_COUNT(mac_gte_gpf_scale, 13)
 
-#define mac_normalize_v3s4(...) \
-	load_word(r_src, R_TapePtr, O_(Binds_NormalizeV3S4,src))     /* pop src ptr (scratch addr) */ \
-,	load_word(r_dst, R_TapePtr, O_(Binds_NormalizeV3S4,dst))     /* pop dst ptr (scratch addr) */ \
-,	add_ui_self(   R_TapePtr, S_(Binds_NormalizeV3S4)) \
-,	load_word(r_sx, r_src, O_(V3_S4,x)) \
-,	load_word(r_sy, r_src, O_(V3_S4,y)) \
-,	load_word(r_sz, r_src, O_(V3_S4,z)) \
-,	nop /* load-delay */	/* ── 48-word normalize body (preserved verbatim from ac_normalize_v3s4) ─────── */	/* Stage 1: mtc2 src → IR1/2/3, SQR fires (MAC1/2/3 = IR², IR ← MAC saturated) */ \
-,	gte_mv_to_data_r(r_sx, C2_IR1) \
-,	gte_mv_to_data_r(r_sy, C2_IR2) \
-,	gte_mv_to_data_r(r_sz, C2_IR3) \
-,	nop \
-,	gte_cmdw_sqr	/* Stage 2: mfc2 MAC1/2/3, sum, mtc2 LZCS */ \
-,	gte_mv_from_data_r(r_sq_y,      C2_MAC1) /* r_sq_y = MAC1 = sx² */ \
-,	gte_mv_from_data_r(r_sq_z,      C2_MAC2) /* r_sq_z = MAC2 = sy² */ \
-,	gte_mv_from_data_r(r_recip_est, C2_MAC3) /* r_recip_est = MAC3 = sz² */ \
-,	nop                                      /* MFC2→GPR load delay (1 slot) */ \
-,	add_u(r_recip_est, r_recip_est, r_sq_z)  /* r_recip_est += sy² */ \
-,	add_u(r_recip_est, r_recip_est, r_sq_y)  /* r_recip_est += sx² (sum = |v|²) */ \
-,	gte_mv_to_data_r(  r_recip_est, C2_LZCS) /* LZCS = |v|² */ \
-,	nop2 \
-,	gte_mv_from_data_r(r_lzcr, C2_LZCR)      /* r_lzcr = LZCR (count of leading bits) */ \
-,	nop                                      /* MFC2→GPR load delay (1 slot) */	/* Stage 3: compute shift amount, align |v|² to bit 24, lookup 1/|v| */ \
-,	and_i(         r_lzcr, r_lzcr, -2)       /* r_lzcr &= ~1 (force even for halving) */ \
-,	li_s(          r_shift, 31)              /* r_shift = 31 */ \
-,	sub_s(         r_shift, r_shift, r_lzcr) /* r_shift = 31 - LZCR */ \
-,	shift_aright(  r_shift, r_shift,  1)     /* r_shift = (31 - LZCR) / 2 */ \
-,	add_si(        r_tmp,   r_lzcr, -24)     /* r_tmp = LZCR - 24 (signed, for branch) */ \
-,	branch_lt_zero(r_tmp, atom_offset(srav_path, aligned_done)) \
-,	nop \
-,	jump_rel(             atom_offset(aligned_done, srav_path)) \
-,	shift_lleft_var(r_recip_est, r_recip_est, r_tmp)     /* BD-slot of branch_equal: r_recip_est = |v|² << (LZCR - 24) */ \
-,	atom_label(srav_path)                                 /* SRAV path: |v|² is small (top bit < bit 24) */ \
-,	li_s(          r_tmp, 24) \
-,	sub_s(         r_tmp, r_tmp, r_lzcr)                 /* r_tmp = 24 - LZCR */ \
-,	shift_aright_var(r_recip_est, r_recip_est, r_tmp)    /* r_recip_est = |v|² >> (24 - LZCR) */ \
-,	atom_label(aligned_done)                                /* Both paths converge here with |v|² aligned to bit 24 */	/* r_recip_est now holds |v|² aligned to bit 24 — convert to byte offset, -64 to skip zero pad. */ \
-,	add_si(        r_recip_est, r_recip_est, -64) \
-,	shift_lleft(   r_recip_est, r_recip_est, 1)           /* r_recip_est *= 2 (half-word index) */	/* Reference OUR local sqrtbl via &-address split. Compiler/linker resolves both halves. */ \
-,	load_upper_i(  r_tmp, u4_hi(& gte_normalize_sqr_tbl)) /* lui */ \
-,	or_i_self(     r_tmp, u4_lo(& gte_normalize_sqr_tbl)) /* ori */ \
-,	add_u(         r_tmp, r_tmp, r_recip_est)             /* r_tmp = sqrtbl base + byte offset (matches libgte 0x80016118: addu t5,t5,t4) */ \
-,	load_half(     r_recip_est, r_tmp, 0)                 /* r_recip_est = sqrtbl[r_recip_est] = 1/|v| estimate */ \
-,	nop                                                   /* retire load_half before MTC2 (matches libgte 0x80016120: nop) */	/* Stage 4: mtc2 IR0..3, GPF (MAC = IR0*IR), mfc2 MAC, srav finalize */ \
-,	gte_mv_to_data_r(r_recip_est, C2_IR0)  /* IR0 = 1/|v| estimate */ \
-,	gte_mv_to_data_r(r_sx,        C2_IR1)  /* IR1 = src.x */ \
-,	gte_mv_to_data_r(r_sy,        C2_IR2)  /* IR2 = src.y */ \
-,	gte_mv_to_data_r(r_sz,        C2_IR3)  /* IR3 = src.z */ \
-,	nop2                                   /* COP2 transfer latency (2 slots) */ \
-,	gte_cmdw_gpf \
-,	gte_mv_from_data_r(r_sx, C2_MAC1)      /* MAC1 → r_sx (overwrites src.x with raw reciprocal-scaled) */ \
-,	gte_mv_from_data_r(r_sy, C2_MAC2) \
-,	gte_mv_from_data_r(r_sz, C2_MAC3) \
-,	shift_aright_var(r_sx, r_sx, r_shift) \
-,	shift_aright_var(r_sy, r_sy, r_shift) \
-,	shift_aright_var(r_sz, r_sz, r_shift)	/* ── I/O wrapper tail (~3 words) ───────────────────────────────────────────── */ \
-,	store_word(r_sx, r_dst, O_(V3_S4,x)) \
-,	store_word(r_sy, r_dst, O_(V3_S4,y)) \
-,	store_word(r_sz, r_dst, O_(V3_S4,z))	/* ── atom_reads(R_TapePtr) atom_writes(R_TapePtr) ────────────────────────── */ \
-,	mac_yield()
-WORD_COUNT(mac_normalize_v3s4, 62)
-
 #define mac_gcmd_push(cmd, reg_transfer, reg_base, port) \
 	load_upper_i(reg_transfer, cmd >> 16) \
 ,	or_i_self(   reg_transfer, cmd & 0xFFFF) \