diff --git a/src/blockchain/token.js b/src/blockchain/token.js
index ee89509..df18f96 100644
--- a/src/blockchain/token.js
+++ b/src/blockchain/token.js
@@ -6,21 +6,9 @@ import {metadata, metadataMap} from "@/version.js";
 
 
 // synchronous version may return null but will trigger a lookup
-export function token(addr) {
-    // todo deprecated.  use metadataMap[chainId][addr]
-    console.warn('token() is deprecated')
-    console.log('token', addr)
-    if( !addr ) {
-        // console.log('ignoring call to token', addr)
-        return null
-    }
-    const s = useStore()
-    if( !(addr in s.tokens) ) {
-        // noinspection JSIgnoredPromiseFromCall
-        getToken(addr)
-        return null
-    }
-    return s.tokens[addr]
+export function token(chainId, addr) {
+    const found = metadataMap[chainId][addr]
+    return found ? found : null
 }
 
 
diff --git a/src/components/chart/ChartOrder.vue b/src/components/chart/ChartOrder.vue
index 305d5bc..d9f6f17 100644
--- a/src/components/chart/ChartOrder.vue
+++ b/src/components/chart/ChartOrder.vue
@@ -80,8 +80,8 @@ function buildOrder() {
   // }
   const symbol = co.selectedSymbol
   const fee = co.selectedPool[1]
-  const tokenIn = order.buy ^ symbol.inverted ? symbol.quote : symbol.base
-  const tokenOut = order.buy ^ symbol.inverted ? symbol.base : symbol.quote
+  const tokenIn = order.buy ? symbol.quote : symbol.base
+  const tokenOut = order.buy ? symbol.base : symbol.quote
   const amountDec = order.amountIsTokenA ? symbol.base.d : symbol.quote.d
   const amount = BigInt(Math.trunc(order.amount * 10 ** amountDec))
   const amountIsInput = !!(order.amountIsTokenA ^ order.buy)
diff --git a/src/orderbuild.js b/src/orderbuild.js
index 04a0862..45c0dc2 100644
--- a/src/orderbuild.js
+++ b/src/orderbuild.js
@@ -139,15 +139,17 @@ export function applyLine(tranche, intercept, slope, isMinimum = null) {
 
 
 export function applyLine2(tranche, isMinimum, intercept, slope, poolDecimals, inverted) {
-    // console.log('intercept, slope', intercept, slope)
+    console.log('intercept, slope', intercept, slope)
     // intercept and slope are still in "human" units of decimal-adjusted prices
     const scale = 10 ** -poolDecimals
-    let m = inverted ? -scale / slope : slope / scale
-    let b = inverted ? scale / intercept : intercept / scale
+    let m = slope === 0 ? 0 : inverted ? -scale / slope : scale * slope
+    let b = inverted ? scale / intercept : scale * intercept
     const cur = b + timestamp() * m
     console.log('inverted b, m, cur', inverted, b, m, cur)
     m = encodeIEE754(m)
     b = encodeIEE754(b)
+    if (inverted)
+        isMinimum = !isMinimum
     if (isMinimum) {
         tranche.minIntercept = b;
         tranche.minSlope = m;