diff --git a/gen/zig/etx.zig b/gen/zig/etx.zig
index 5e75adda..cd770d28 100644
--- a/gen/zig/etx.zig
+++ b/gen/zig/etx.zig
@@ -27,7 +27,7 @@ fn fp_mul(a: u8, b: u8) u8 {
     if ((a == 0) or (b == 0)) {
         return 0;
     }
-    return @as(u8, @intCast((@as(u16, @intCast(a)) * @as(u16, @intCast(b))) >> 8));
+    return @as(u8, @truncate((@as(u16, @intCast(a)) * @as(u16, @intCast(b))) >> 8));
 }
 fn ewma_update(est: u8, sample: u8, alpha: u8) u8 {
     if ((est == 255) and (sample == 255)) {
diff --git a/gen/zig/link_quality_monitor.zig b/gen/zig/link_quality_monitor.zig
index 2bb72491..f4674007 100644
--- a/gen/zig/link_quality_monitor.zig
+++ b/gen/zig/link_quality_monitor.zig
@@ -18,11 +18,11 @@ fn update_ewma(current: u8, sample: u8) u8 {
     if (new_estimate > 0xFF) {
         return 0xFF;
     }
-    return @as(u8, @intCast(new_estimate));
+    return @as(u8, @truncate(new_estimate));
 }
 fn calculate_trend(history: [8]u8) i8 {
-    const recent_avg: u8 = @as(u8, @intCast((((@as(u16, @intCast(history[7])) + @as(u16, @intCast(history[6]))) + @as(u16, @intCast(history[5]))) + @as(u16, @intCast(history[4]))) >> 2));
-    const older_avg: u8 = @as(u8, @intCast((((@as(u16, @intCast(history[3])) + @as(u16, @intCast(history[2]))) + @as(u16, @intCast(history[1]))) + @as(u16, @intCast(history[0]))) >> 2));
+    const recent_avg: u8 = @as(u8, @truncate((((@as(u16, @intCast(history[7])) + @as(u16, @intCast(history[6]))) + @as(u16, @intCast(history[5]))) + @as(u16, @intCast(history[4]))) >> 2));
+    const older_avg: u8 = @as(u8, @truncate((((@as(u16, @intCast(history[3])) + @as(u16, @intCast(history[2]))) + @as(u16, @intCast(history[1]))) + @as(u16, @intCast(history[0]))) >> 2));
     if (recent_avg > older_avg) {
         return @as(i8, @intCast(recent_avg - older_avg));
     }
@@ -48,7 +48,7 @@ fn quality_score(etx: u8, latency_ms: u16) u8 {
     if (combined > 255) {
         return 255;
     }
-    return @as(u8, @intCast(combined));
+    return @as(u8, @truncate(combined));
 }
 fn classify_quality(score: u8) u8 {
     if (score <= 50) {
diff --git a/gen/zig/m3_multihop.zig b/gen/zig/m3_multihop.zig
index 84ec34ca..8c480825 100644
--- a/gen/zig/m3_multihop.zig
+++ b/gen/zig/m3_multihop.zig
@@ -25,7 +25,7 @@ fn expected_loss_rate_p10(attenuation_db: u8) u8 {
     if (total > 0xC0) {
         return 0xC0;
     }
-    return @as(u8, @intCast(total));
+    return @as(u8, @truncate(total));
 }
 fn throughput_factor_p8(attenuation_db: u8) u8 {
     const loss_p10: u8 = expected_loss_rate_p10(attenuation_db);
@@ -55,13 +55,13 @@ fn total_attenuation(hop1_db: u8, hop2_db: u8) u8 {
     if (sum > @as(u16, @intCast(ATTEN_MAX))) {
         return ATTEN_MAX;
     }
-    return @as(u8, @intCast(sum));
+    return @as(u8, @truncate(sum));
 }
 fn delivery_rate_p8(hop1_db: u8, hop2_db: u8) u8 {
     const factor1: u8 = throughput_factor_p8(hop1_db);
     const factor2: u8 = throughput_factor_p8(hop2_db);
     const product: u16 = @as(u16, @intCast(factor1)) * @as(u16, @intCast(factor2));
-    return @as(u8, @intCast(product >> 8));
+    return @as(u8, @truncate(product >> 8));
 }
 fn simulate_hop(attenuation_db: u8, packet_seq: u8) bool {
     const success_p8: u8 = throughput_factor_p8(attenuation_db);
diff --git a/gen/zig/multipath_router.zig b/gen/zig/multipath_router.zig
index f7b032b4..0d8725ac 100644
--- a/gen/zig/multipath_router.zig
+++ b/gen/zig/multipath_router.zig
@@ -27,7 +27,7 @@ fn path_quality_score(etx: u8, latency: u16, loss_p8: u8) u8 {
     if (total > 255) {
         return 255;
     } else {
-        return @as(u8, @intCast(total));
+        return @as(u8, @truncate(total));
     }
 }
 fn needs_failover(current_etx: u8, current_idx: u8, max_paths: u8) bool {
diff --git a/gen/zig/network_metrics.zig b/gen/zig/network_metrics.zig
index a35c2bda..da25f0b9 100644
--- a/gen/zig/network_metrics.zig
+++ b/gen/zig/network_metrics.zig
@@ -28,7 +28,7 @@ fn success_rate(sent: u32, success: u32) u8 {
         return 100;
     }
     if (sent >= success) {
-        return @as(u8, @intCast((@as(u16, @intCast(success)) * 100) / @as(u16, @intCast(sent))));
+        return @as(u8, @intCast((@as(u16, @truncate(success)) * 100) / @as(u16, @truncate(sent))));
     } else {
         return 0;
     }
diff --git a/gen/zig/packet_queue.zig b/gen/zig/packet_queue.zig
index fa55b79e..df4f190f 100644
--- a/gen/zig/packet_queue.zig
+++ b/gen/zig/packet_queue.zig
@@ -30,7 +30,7 @@ fn enqueue(state: u32, data: u32) u32 {
     const head: u32 = state & 7;
     const tail: u32 = (state >> 3) & 7;
     const count: u32 = @as(u32, @intCast(get_count(state)));
-    return (head | (@as(u32, @intCast(increment_index(@as(u8, @intCast(tail))))) << 3)) | ((count + 1) << 6);
+    return (head | (@as(u32, @intCast(increment_index(@as(u8, @truncate(tail))))) << 3)) | ((count + 1) << 6);
 }
 fn dequeue(state: u32) u32 {
     if (is_empty(state)) {
@@ -39,7 +39,7 @@ fn dequeue(state: u32) u32 {
     const head: u32 = state & 7;
     const tail: u32 = (state >> 3) & 7;
     const count: u32 = @as(u32, @intCast(get_count(state)));
-    return (@as(u32, @intCast(increment_index(@as(u8, @intCast(head))))) | (tail << 3)) | ((count - 1) << 6);
+    return (@as(u32, @intCast(increment_index(@as(u8, @truncate(head))))) | (tail << 3)) | ((count - 1) << 6);
 }
 fn size(state: u32) u8 {
     return get_count(state);
diff --git a/gen/zig/tri_a2a.zig b/gen/zig/tri_a2a.zig
index b1715e69..2460712e 100644
--- a/gen/zig/tri_a2a.zig
+++ b/gen/zig/tri_a2a.zig
@@ -329,7 +329,7 @@ fn admit_result(assign_task_id: u32, result_task_id: u32, receipt_task: u32, ass
 const A2A_BOND_BPS_UNIT: u32 = 10000;
 fn admit_result_bonded(assign_task_id: u32, result_task_id: u32, receipt_task: u32, assigned_skill: u32, receipt_family: u32, receipt_op: u32, last_settled: u32, exec_rep: u32, min_rep: u32, bond: u32, outstanding: u32, min_bps: u32) bool {
     const need: u64 = @as(u64, @intCast(outstanding)) * @as(u64, @intCast(min_bps));
-    const required: u32 = @as(u32, @intCast(need / @as(u64, @intCast(A2A_BOND_BPS_UNIT))));
+    const required: u32 = @as(u32, @truncate(need / @as(u64, @intCast(A2A_BOND_BPS_UNIT))));
     if (bond >= required) {
         return admit_result(assign_task_id, result_task_id, receipt_task, assigned_skill, receipt_family, receipt_op, last_settled, exec_rep, min_rep);
     } else {
diff --git a/gen/zig/tri_challenge.zig b/gen/zig/tri_challenge.zig
index d35c8c3e..391aac6b 100644
--- a/gen/zig/tri_challenge.zig
+++ b/gen/zig/tri_challenge.zig
@@ -186,7 +186,7 @@ fn risk_after_close(risk: u32, reward: u32) u32 {
 }
 fn dispute_required_bond(outstanding: u32, min_bps: u32) u32 {
     const need: u64 = @as(u64, @intCast(outstanding)) * @as(u64, @intCast(min_bps));
-    return @as(u32, @intCast(need / @as(u64, @intCast(CH_BPS_UNIT))));
+    return @as(u32, @truncate(need / @as(u64, @intCast(CH_BPS_UNIT))));
 }
 fn may_open_dispute(open_count: u32, risk: u32, reward: u32, bond: u32, min_bps: u32) bool {
     if (dispute_slots_ok(open_count) == false) {
diff --git a/gen/zig/tri_compute_bond.zig b/gen/zig/tri_compute_bond.zig
index 04b93bab..ffb1bb7a 100644
--- a/gen/zig/tri_compute_bond.zig
+++ b/gen/zig/tri_compute_bond.zig
@@ -50,7 +50,7 @@ fn balance_after_resolve(balance: u32, bond: u32, outcome: u32) u32 {
 const BOND_BPS_UNIT: u32 = 10000;
 fn required_bond(outstanding: u32, min_bps: u32) u32 {
     const need: u64 = @as(u64, @intCast(outstanding)) * @as(u64, @intCast(min_bps));
-    return @as(u32, @intCast(need / @as(u64, @intCast(BOND_BPS_UNIT))));
+    return @as(u32, @truncate(need / @as(u64, @intCast(BOND_BPS_UNIT))));
 }
 fn bond_covers(bond: u32, outstanding: u32, min_bps: u32) bool {
     return bond >= required_bond(outstanding, min_bps);
diff --git a/gen/zig/tri_compute_challenge.zig b/gen/zig/tri_compute_challenge.zig
index eb925488..1e5220c5 100644
--- a/gen/zig/tri_compute_challenge.zig
+++ b/gen/zig/tri_compute_challenge.zig
@@ -278,7 +278,7 @@ fn verifier_reward(burned_total: u32, honest_count: u32) u32 {
         return 0;
     } else {
         const share: u64 = @as(u64, @intCast(burned_total)) / @as(u64, @intCast(honest_count));
-        return @as(u32, @intCast(share));
+        return @as(u32, @truncate(share));
     }
 }
 fn quorum_threshold(n: u32) u32 {
@@ -364,7 +364,7 @@ fn burned_total5(v0: u32, v1: u32, v2: u32, v3: u32, v4: u32, stake: u32) u32 {
     if (prod > 4294967295) {
         return 4294967295;
     } else {
-        return @as(u32, @intCast(prod));
+        return @as(u32, @truncate(prod));
     }
 }
 fn honest_share5(v0: u32, v1: u32, v2: u32, v3: u32, v4: u32, stake: u32) u32 {
diff --git a/gen/zig/tri_compute_payout.zig b/gen/zig/tri_compute_payout.zig
index b2c8fbc5..97830840 100644
--- a/gen/zig/tri_compute_payout.zig
+++ b/gen/zig/tri_compute_payout.zig
@@ -10,7 +10,7 @@ fn weighted(raw_work: u32, rep: u32) u32 {
     if (prod > 4294967295) {
         return 4294967295;
     } else {
-        return @as(u32, @intCast(prod));
+        return @as(u32, @truncate(prod));
     }
 }
 fn total_weighted3(w0: u32, w1: u32, w2: u32) u32 {
@@ -18,7 +18,7 @@ fn total_weighted3(w0: u32, w1: u32, w2: u32) u32 {
     if (sum > 4294967295) {
         return 4294967295;
     } else {
-        return @as(u32, @intCast(sum));
+        return @as(u32, @truncate(sum));
     }
 }
 fn payout(total_pool: u32, my_weighted: u32, total_weighted: u32) u32 {
@@ -27,7 +27,7 @@ fn payout(total_pool: u32, my_weighted: u32, total_weighted: u32) u32 {
     } else {
         const num: u64 = @as(u64, @intCast(total_pool)) * @as(u64, @intCast(my_weighted));
         const den: u64 = @as(u64, @intCast(total_weighted));
-        return @as(u32, @intCast(num / den));
+        return @as(u32, @truncate(num / den));
     }
 }
 test "reputation_weighted_split" {
diff --git a/gen/zig/tri_compute_pool.zig b/gen/zig/tri_compute_pool.zig
index 1536242c..e78fc14d 100644
--- a/gen/zig/tri_compute_pool.zig
+++ b/gen/zig/tri_compute_pool.zig
@@ -10,7 +10,7 @@ fn total_work3(w0: u32, w1: u32, w2: u32) u32 {
     if (sum > 4294967295) {
         return 4294967295;
     } else {
-        return @as(u32, @intCast(sum));
+        return @as(u32, @truncate(sum));
     }
 }
 fn pool_share(total_pool: u32, my_work: u32, total: u32) u32 {
@@ -19,7 +19,7 @@ fn pool_share(total_pool: u32, my_work: u32, total: u32) u32 {
     } else {
         const num: u64 = @as(u64, @intCast(total_pool)) * @as(u64, @intCast(my_work));
         const den: u64 = @as(u64, @intCast(total));
-        return @as(u32, @intCast(num / den));
+        return @as(u32, @truncate(num / den));
     }
 }
 fn pool_after_deposit(pool: u32, amount: u32) u32 {
diff --git a/gen/zig/tri_compute_reputation.zig b/gen/zig/tri_compute_reputation.zig
index f790410f..13f675ca 100644
--- a/gen/zig/tri_compute_reputation.zig
+++ b/gen/zig/tri_compute_reputation.zig
@@ -14,7 +14,7 @@ fn rep_after_honest(rep: u32, gain: u32) u32 {
     if (r > @as(u64, @intCast(REP_MAX))) {
         return REP_MAX;
     } else {
-        return @as(u32, @intCast(r));
+        return @as(u32, @truncate(r));
     }
 }
 fn rep_after_slash(rep: u32) u32 {
@@ -57,7 +57,7 @@ fn weighted_work(raw_work: u32, rep: u32) u32 {
     if (prod > 4294967295) {
         return 4294967295;
     } else {
-        return @as(u32, @intCast(prod));
+        return @as(u32, @truncate(prod));
     }
 }
 fn can_admit(rep: u32, min_rep: u32) bool {
diff --git a/gen/zig/tri_compute_settle.zig b/gen/zig/tri_compute_settle.zig
index 5df928f8..2d26bddb 100644
--- a/gen/zig/tri_compute_settle.zig
+++ b/gen/zig/tri_compute_settle.zig
@@ -37,7 +37,7 @@ fn compute_reward(gf_width: u32, fresh: u32) u32 {
 fn compute_reward_fmt(gf_width: u32, fresh: u32, work_bps: u32) u32 {
     if (fresh == 1) {
         const scaled: u64 = @as(u64, @intCast(gf_width)) * @as(u64, @intCast(work_bps));
-        return @as(u32, @intCast(scaled / @as(u64, @intCast(WORK_BPS_UNIT))));
+        return @as(u32, @truncate(scaled / @as(u64, @intCast(WORK_BPS_UNIT))));
     } else {
         return 0;
     }
diff --git a/gen/zig/tri_gft_arith.zig b/gen/zig/tri_gft_arith.zig
index 348be251..bbe97c87 100644
--- a/gen/zig/tri_gft_arith.zig
+++ b/gen/zig/tri_gft_arith.zig
@@ -77,7 +77,7 @@ fn gft_mul_mant_u64(ma: u64, mb: u64, mant_one: u64) u32 {
     if (prod >= ((2 * mant_one) * mant_one)) {
         return @as(u32, @intCast((prod / (2 * mant_one)) - mant_one));
     } else {
-        return @as(u32, @intCast((prod / mant_one) - mant_one));
+        return @as(u32, @truncate((prod / mant_one) - mant_one));
     }
 }
 fn gft_mul_offset_full_u64(offset_a: u32, ma: u64, offset_b: u32, mb: u64, bias: u32, offset_max: u32, mant_one: u64) u32 {
diff --git a/gen/zig/video_bridge.zig b/gen/zig/video_bridge.zig
index 18634be1..ea0e34ba 100644
--- a/gen/zig/video_bridge.zig
+++ b/gen/zig/video_bridge.zig
@@ -37,7 +37,7 @@ fn fb_util_pct(spent: u16, rate: u16) u8 {
     if (pct > 100) {
         return 100;
     }
-    return @as(u8, @intCast(pct));
+    return @as(u8, @truncate(pct));
 }
 fn fb_drop_pct(dropped: u16, offered: u16) u8 {
     if (offered == 0) {
@@ -46,7 +46,7 @@ fn fb_drop_pct(dropped: u16, offered: u16) u8 {
     const scaled: u32 = dropped;
     const total: u32 = offered;
     const pct: u32 = (scaled * 100) / total;
-    return @as(u8, @intCast(pct));
+    return @as(u8, @truncate(pct));
 }
 const CLIMB_BELOW_PCT: u8 = 85;
 const BACK_OFF_AT_PCT: u8 = 85;
@@ -146,11 +146,11 @@ fn frag_seq(s_lo: u8, s_hi: u8) u16 {
 }
 fn seq_lo(seq: u16) u8 {
     const low: u16 = seq % 256;
-    return @as(u8, @intCast(low));
+    return @as(u8, @truncate(low));
 }
 fn seq_hi(seq: u16) u8 {
     const high: u16 = seq / 256;
-    return @as(u8, @intCast(high));
+    return @as(u8, @truncate(high));
 }
 fn fragment_count(nal_size: u16) u8 {
     if (nal_size == 0) {
@@ -161,7 +161,7 @@ fn fragment_count(nal_size: u16) u8 {
     if (remainder > 0) {
         return @as(u8, @intCast(full_frags + 1));
     }
-    return @as(u8, @intCast(full_frags));
+    return @as(u8, @truncate(full_frags));
 }
 fn packet_size(data_len: u8) u8 {
     return FRAG_HEADER_LEN + data_len;