Removed nonblocking bang ports

5 files changed, 58 insertions, 72 deletions

diff --git a/desktop/package-lock.json b/desktop/package-lock.json
index c347221..37c0b63 100644
--- a/desktop/package-lock.json
+++ b/desktop/package-lock.json
@@ -36,9 +36,9 @@
       }
     },
     "@types/node": {
-      "version": "12.12.25",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-12.12.25.tgz",
-      "integrity": "sha512-nf1LMGZvgFX186geVZR1xMZKKblJiRfiASTHw85zED2kI1yDKHDwTKMdkaCbTlXoRKlGKaDfYywt+V0As30q3w==",
+      "version": "12.12.26",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-12.12.26.tgz",
+      "integrity": "sha512-UmUm94/QZvU5xLcUlNR8hA7Ac+fGpO1EG/a8bcWVz0P0LqtxFmun9Y2bbtuckwGboWJIT70DoWq1r3hb56n3DA==",
       "dev": true
     },
     "asar": {
@@ -71,7 +71,7 @@
     "base64-js": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.3.1.tgz",
-      "integrity": "sha512-mLQ4i2QO1ytvGWFWmcngKO//JXAQueZvwEKtjgQFM4jIK0kU+ytMfplL8j+n5mspOfjHwoAg+9yhb7BwAHm36g==",
+      "integrity": "sha1-WOzoy3XdB+ce0IxzarxfrE2/jfE=",
       "dev": true
     },
     "binpack": {
@@ -95,7 +95,7 @@
     "brace-expansion": {
       "version": "1.1.11",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
-      "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
+      "integrity": "sha1-PH/L9SnYcibz0vUrlm/1Jx60Qd0=",
       "dev": true,
       "requires": {
         "balanced-match": "^1.0.0",
@@ -105,7 +105,7 @@
     "buffer-alloc": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/buffer-alloc/-/buffer-alloc-1.2.0.tgz",
-      "integrity": "sha512-CFsHQgjtW1UChdXgbyJGtnm+O/uLQeZdtbDo8mfUgYXCHSM1wgrVxXm6bSyrUuErEb+4sYVGCzASBRot7zyrow==",
+      "integrity": "sha1-iQ3ZDZI6hz4I4Q5f1RpX5bfM4Ow=",
       "dev": true,
       "requires": {
         "buffer-alloc-unsafe": "^1.1.0",
@@ -115,7 +115,7 @@
     "buffer-alloc-unsafe": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/buffer-alloc-unsafe/-/buffer-alloc-unsafe-1.1.0.tgz",
-      "integrity": "sha512-TEM2iMIEQdJ2yjPJoSIsldnleVaAk1oW3DBVUykyOLsEsFmEc9kn+SFFPz+gl54KQNxlDnAwCXosOS9Okx2xAg==",
+      "integrity": "sha1-vX3CauKXLQ7aJTvgYdupkjScGfA=",
       "dev": true
     },
     "buffer-fill": {
@@ -186,7 +186,7 @@
     "commander": {
       "version": "2.20.3",
       "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
-      "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==",
+      "integrity": "sha1-/UhehMA+tIgcIHIrpIA16FMa6zM=",
       "dev": true
     },
     "compare-version": {
@@ -317,9 +317,9 @@
       "dev": true
     },
     "electron": {
-      "version": "7.1.10",
-      "resolved": "https://registry.npmjs.org/electron/-/electron-7.1.10.tgz",
-      "integrity": "sha512-UDpS2CfBN3yufCrbET5Ozw1XrLhuANHn+Zs8Vgl/BcBT/MoNbkY79nRFcyxj6pCFrEde9IoNOf+DgNp6altNxw==",
+      "version": "7.1.11",
+      "resolved": "https://registry.npmjs.org/electron/-/electron-7.1.11.tgz",
+      "integrity": "sha512-YDXfnovKY+8iZ5ISQh1kRqYIRKbpOSxGXCx2WVxPFPutEQ7Q/Xzr3h4GePEY25/NXMytMfhKaAZAYjtWUm3r9Q==",
       "dev": true,
       "requires": {
         "@electron/get": "^1.0.1",
@@ -354,7 +354,7 @@
         "debug": {
           "version": "2.6.9",
           "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
-          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+          "integrity": "sha1-XRKFFd8TT/Mn6QpMk/Tgd6U2NB8=",
           "dev": true,
           "requires": {
             "ms": "2.0.0"
@@ -424,7 +424,7 @@
     "error-ex": {
       "version": "1.3.2",
       "resolved": "https://registry.npmjs.org/error-ex/-/error-ex-1.3.2.tgz",
-      "integrity": "sha512-7dFHNmqeFSEt2ZBsCriorKnn3Z2pj+fd9kmI6QoWw4//DL+icEBfc0U7qJCisqrTsKTjw4fNFy2pW9OqStD84g==",
+      "integrity": "sha1-tKxAZIEH/c3PriQvQovqihTU8b8=",
       "dev": true,
       "requires": {
         "is-arrayish": "^0.2.1"
@@ -494,7 +494,7 @@
     "flora-colossus": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/flora-colossus/-/flora-colossus-1.0.1.tgz",
-      "integrity": "sha512-d+9na7t9FyH8gBJoNDSi28mE4NgQVGGvxQ4aHtFRetjyh5SXjuus+V5EZaxFmFdXVemSOrx0lsgEl/ZMjnOWJA==",
+      "integrity": "sha1-q6GYQlqBhTQeZPnSpqlv2aPL25M=",
       "dev": true,
       "requires": {
         "debug": "^4.1.1",
@@ -504,7 +504,7 @@
         "fs-extra": {
           "version": "7.0.1",
           "resolved": "https://registry.npmjs.org/fs-extra/-/fs-extra-7.0.1.tgz",
-          "integrity": "sha512-YJDaCJZEnBmcbw13fvdAM9AwNOJwOzrE4pqMqBq5nFiEqXUqHwlK4B+3pUw6JNvfSPtX05xFHtYy/1ni01eGCw==",
+          "integrity": "sha1-TxicRKoSO4lfcigE9V6iPq3DSOk=",
           "dev": true,
           "requires": {
             "graceful-fs": "^4.1.2",
@@ -579,7 +579,7 @@
         "debug": {
           "version": "2.6.9",
           "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
-          "integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
+          "integrity": "sha1-XRKFFd8TT/Mn6QpMk/Tgd6U2NB8=",
           "dev": true,
           "requires": {
             "ms": "2.0.0"
@@ -683,7 +683,7 @@
     "hosted-git-info": {
       "version": "2.8.5",
       "resolved": "https://registry.npmjs.org/hosted-git-info/-/hosted-git-info-2.8.5.tgz",
-      "integrity": "sha512-kssjab8CvdXfcXMXVcvsXum4Hwdq9XGtRD3TteMEvEbq0LXyiNQr6AprqKqfeaDXze7SxWvRxdpwE6ku7ikLkg==",
+      "integrity": "sha1-dZz88sTRVq3lmwst+r3cQqa5xww=",
       "dev": true
     },
     "http-cache-semantics": {
@@ -705,7 +705,7 @@
     "inherits": {
       "version": "2.0.4",
       "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
-      "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
+      "integrity": "sha1-D6LGT5MpF8NDOg3tVTY6rjdBa3w=",
       "dev": true
     },
     "ini": {
@@ -730,7 +730,7 @@
     "isbinaryfile": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/isbinaryfile/-/isbinaryfile-3.0.3.tgz",
-      "integrity": "sha512-8cJBL5tTd2OS0dM4jz07wQd5g0dCCqIhUxPIGtZfa5L6hWlvV5MHTITy/DBAsF+Oe2LS1X3krBUhNwaGUWpWxw==",
+      "integrity": "sha1-XW3vPt6/boyoyunDAYOoBLX4voA=",
       "dev": true,
       "requires": {
         "buffer-alloc": "^1.2.0"
@@ -846,7 +846,7 @@
     "minimatch": {
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
-      "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
+      "integrity": "sha1-UWbihkV/AzBgZL5Ul+jbsMPTIIM=",
       "dev": true,
       "requires": {
         "brace-expansion": "^1.1.7"
@@ -870,7 +870,7 @@
     "ms": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
-      "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+      "integrity": "sha1-0J0fNXtEP0kzgqjrPM0YOHKuYAk=",
       "dev": true
     },
     "node-osc": {
@@ -885,7 +885,7 @@
     "normalize-package-data": {
       "version": "2.5.0",
       "resolved": "https://registry.npmjs.org/normalize-package-data/-/normalize-package-data-2.5.0.tgz",
-      "integrity": "sha512-/5CMN3T0R4XTj4DcGaexo+roZSdSFW/0AOOTROrjxzCG1wrWXEsGbRKevjlIL+ZDE4sZlJr5ED4YW0yqmkK+eA==",
+      "integrity": "sha1-5m2xg4sgDB38IzIl0SyzZSDiNKg=",
       "dev": true,
       "requires": {
         "hosted-git-info": "^2.1.4",
@@ -952,7 +952,7 @@
     "p-limit": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-1.3.0.tgz",
-      "integrity": "sha512-vvcXsLAJ9Dr5rQOPk7toZQZJApBl2K4J6dANSsEuh6QI41JYcsS/qhTGa9ErIUUgK3WNQoJYvylxvjqmiqEA9Q==",
+      "integrity": "sha1-uGvV8MJWkJEcdZD8v8IBDVSzzLg=",
       "dev": true,
       "requires": {
         "p-try": "^1.0.0"
@@ -1006,7 +1006,7 @@
     "path-parse": {
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.6.tgz",
-      "integrity": "sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw==",
+      "integrity": "sha1-1i27VnlAXXLEc37FhgDp3c8G0kw=",
       "dev": true
     },
     "path-type": {
@@ -1042,7 +1042,7 @@
     "plist": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/plist/-/plist-3.0.1.tgz",
-      "integrity": "sha512-GpgvHHocGRyQm74b6FWEZZVRroHKE1I0/BTjAmySaohK+cUn+hZpbqXkc3KWgW3gQYkqcQej35FohcT0FRlkRQ==",
+      "integrity": "sha1-qbkx0XwwTokS7wujvdYYK68uH4w=",
       "dev": true,
       "requires": {
         "base64-js": "^1.2.3",
@@ -1142,7 +1142,7 @@
     "rimraf": {
       "version": "2.7.1",
       "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.7.1.tgz",
-      "integrity": "sha512-uWjbaKIK3T1OSVptzX7Nl6PvQ3qAGtKEtVRjRuazjfL3Bx5eI409VZSqgND+4UNnmzLVdPj9FqFJNPqBZFve4w==",
+      "integrity": "sha1-NXl/E6f9rcVmFCwp1PB8ytSD4+w=",
       "dev": true,
       "requires": {
         "glob": "^7.1.3"
@@ -1172,7 +1172,7 @@
     "sanitize-filename": {
       "version": "1.6.3",
       "resolved": "https://registry.npmjs.org/sanitize-filename/-/sanitize-filename-1.6.3.tgz",
-      "integrity": "sha512-y/52Mcy7aw3gRm7IrcGDFx/bCk4AhRh2eI9luHOQM86nZsqwiRkkq2GekHXBBD+SmPidc8i2PqtYZl+pWJ8Oeg==",
+      "integrity": "sha1-dV69dSBFkxl34wsgJdNA18kJA3g=",
       "dev": true,
       "requires": {
         "truncate-utf8-bytes": "^1.0.0"
@@ -1204,7 +1204,7 @@
     "spdx-correct": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/spdx-correct/-/spdx-correct-3.1.0.tgz",
-      "integrity": "sha512-lr2EZCctC2BNR7j7WzJ2FpDznxky1sjfxvvYEyzxNyb6lZXHODmEoJeFu4JupYlkfha1KZpJyoqiJ7pgA1qq8Q==",
+      "integrity": "sha1-+4PlBERSaPFUsHTiGMh8ADzTHfQ=",
       "dev": true,
       "requires": {
         "spdx-expression-parse": "^3.0.0",
@@ -1214,13 +1214,13 @@
     "spdx-exceptions": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/spdx-exceptions/-/spdx-exceptions-2.2.0.tgz",
-      "integrity": "sha512-2XQACfElKi9SlVb1CYadKDXvoajPgBVPn/gOQLrTvHdElaVhr7ZEbqJaRnJLVNeaI4cMEAgVCeBMKF6MWRDCRA==",
+      "integrity": "sha1-LqRQrudPKom/uUUZwH/Nb0EyKXc=",
       "dev": true
     },
     "spdx-expression-parse": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/spdx-expression-parse/-/spdx-expression-parse-3.0.0.tgz",
-      "integrity": "sha512-Yg6D3XpRD4kkOmTpdgbUiEJFKghJH03fiC1OPll5h/0sO6neh2jqRDVHOQ4o/LMea0tgCkbMgea5ip/e+MkWyg==",
+      "integrity": "sha1-meEZt6XaAOBUkcn6M4t5BII7QdA=",
       "dev": true,
       "requires": {
         "spdx-exceptions": "^2.1.0",
@@ -1230,7 +1230,7 @@
     "spdx-license-ids": {
       "version": "3.0.5",
       "resolved": "https://registry.npmjs.org/spdx-license-ids/-/spdx-license-ids-3.0.5.tgz",
-      "integrity": "sha512-J+FWzZoynJEXGphVIS+XEh3kFSjZX/1i9gFBaWQcB+/tmpe2qUsSBABpcxqxnAxFdiUFEgAX1bjYGQvIZmoz9Q==",
+      "integrity": "sha1-NpS1gEVnpFjTyARYQqY1hjL2JlQ=",
       "dev": true
     },
     "sprintf-js": {
@@ -1267,7 +1267,7 @@
     "tmp": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.1.0.tgz",
-      "integrity": "sha512-J7Z2K08jbGcdA1kkQpJSqLF6T0tdQqpR2pnSUXsIchbPdTI9v3e85cLW0d6WDhwuAleOV71j2xWs8qMPfK7nKw==",
+      "integrity": "sha1-7kNKTiJUMILilLpiAdzG6v76KHc=",
       "dev": true,
       "requires": {
         "rimraf": "^2.6.3"
@@ -1276,7 +1276,7 @@
     "tmp-promise": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/tmp-promise/-/tmp-promise-1.1.0.tgz",
-      "integrity": "sha512-8+Ah9aB1IRXCnIOxXZ0uFozV1nMU5xiu7hhFVUSxZ3bYu+psD4TzagCzVbexUCgNNGJnsmNDQlS4nG3mTyoNkw==",
+      "integrity": "sha1-u5JNI5ApFXubwdUGpqo0H4sT5kw=",
       "dev": true,
       "requires": {
         "bluebird": "^3.5.0",
@@ -1321,7 +1321,7 @@
     "universalify": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz",
-      "integrity": "sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg==",
+      "integrity": "sha1-tkb2m+OULavOzJ1mOcgNwQXvqmY=",
       "dev": true
     },
     "url-parse-lax": {
@@ -1348,7 +1348,7 @@
     "validate-npm-package-license": {
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/validate-npm-package-license/-/validate-npm-package-license-3.0.4.tgz",
-      "integrity": "sha512-DpKm2Ui/xN7/HQKCtpZxoRWBhZ9Z0kqtygG8XCgNQ8ZlDnxuQmWhj566j8fN4Cu3/JmbhsDo7fcAJq4s9h27Ew==",
+      "integrity": "sha1-/JH2uce6FchX9MssXe/uw51PQQo=",
       "dev": true,
       "requires": {
         "spdx-correct": "^3.0.0",
diff --git a/desktop/package.json b/desktop/package.json
index e3e2a40..049da30 100644
--- a/desktop/package.json
+++ b/desktop/package.json
@@ -19,7 +19,7 @@
     "push": "npm run build ; npm run push_osx ; npm run push_linux ; npm run push_win ; npm run clean ; npm run status"
   },
   "devDependencies": {
-    "electron": "^7.1.10",
+    "electron": "^7.1.11",
     "electron-packager": "^14.2.0"
   },
   "dependencies": {
diff --git a/desktop/sources/scripts/client.js b/desktop/sources/scripts/client.js
index f482f06..d1580a5 100644
--- a/desktop/sources/scripts/client.js
+++ b/desktop/sources/scripts/client.js
@@ -273,10 +273,10 @@ function Client () {
     if (type === 6) { return { fg: this.theme.active.b_inv } }
     // Invisible
     if (type === 7) { return {} }
-    // Reader
+    // Output Bang
     if (type === 8) { return { bg: this.theme.active.b_low, fg: this.theme.active.f_high } }
     // Output Reader
-    if (type === 9) { return { bg: this.theme.active.b_inv, fg: this.theme.active.f_high } }
+    if (type === 9) { return { bg: this.theme.active.b_inv, fg: this.theme.active.background } }
     // Reader+Background
     if (type === 10) { return { bg: this.theme.active.background, fg: this.theme.active.f_high } }
     // Clock(yellow fg)
@@ -312,9 +312,7 @@ function Client () {
     const isLocked = this.orca.lockAt(x, y)
     if (selection === glyph && isLocked === false && selection !== '.') { return 6 }
     if (glyph === '*' && isLocked === false) { return 2 }
-
     const port = this.ports[this.orca.indexAt(x, y)]
-
     if (port) { return port[2] }
     if (isLocked === true) { return 5 }
     return 20
diff --git a/desktop/sources/scripts/core/library.js b/desktop/sources/scripts/core/library.js
index 1889062..fca1cac 100644
--- a/desktop/sources/scripts/core/library.js
+++ b/desktop/sources/scripts/core/library.js
@@ -13,7 +13,7 @@ library.a = function OperatorA (orca, x, y, passive) {
 
   this.ports.a = { x: -1, y: 0 }
   this.ports.b = { x: 1, y: 0 }
-  this.ports.output = { x: 0, y: 1, sensitive: true }
+  this.ports.output = { x: 0, y: 1, sensitive: true, output: true }
 
   this.operation = function (force = false) {
     const a = this.listen(this.ports.a, true)
@@ -30,7 +30,7 @@ library.b = function OperatorL (orca, x, y, passive) {
 
   this.ports.a = { x: -1, y: 0 }
   this.ports.b = { x: 1, y: 0 }
-  this.ports.output = { x: 0, y: 1, sensitive: true }
+  this.ports.output = { x: 0, y: 1, sensitive: true, output: true }
 
   this.operation = function (force = false) {
     const a = this.listen(this.ports.a, true)
@@ -47,7 +47,7 @@ library.c = function OperatorC (orca, x, y, passive) {
 
   this.ports.rate = { x: -1, y: 0, clamp: { min: 1 } }
   this.ports.mod = { x: 1, y: 0, default: '8' }
-  this.ports.output = { x: 0, y: 1, sensitive: true }
+  this.ports.output = { x: 0, y: 1, sensitive: true, output: true }
 
   this.operation = function (force = false) {
     const rate = this.listen(this.ports.rate, true)
@@ -65,7 +65,7 @@ library.d = function OperatorD (orca, x, y, passive) {
 
   this.ports.rate = { x: -1, y: 0, clamp: { min: 1 } }
   this.ports.mod = { x: 1, y: 0, default: '8' }
-  this.ports.output = { x: 0, y: 1, bang: true }
+  this.ports.output = { x: 0, y: 1, bang: true, output: true }
 
   this.operation = function (force = false) {
     const rate = this.listen(this.ports.rate, true)
@@ -96,7 +96,7 @@ library.f = function OperatorF (orca, x, y, passive) {
 
   this.ports.a = { x: -1, y: 0 }
   this.ports.b = { x: 1, y: 0 }
-  this.ports.output = { x: 0, y: 1, bang: true }
+  this.ports.output = { x: 0, y: 1, bang: true, output: true }
 
   this.operation = function (force = false) {
     const a = this.listen(this.ports.a)
@@ -136,7 +136,7 @@ library.h = function OperatorH (orca, x, y, passive) {
   this.name = 'halt'
   this.info = 'Halts southward operand'
 
-  this.ports.output = { x: 0, y: 1, reader: true }
+  this.ports.output = { x: 0, y: 1, reader: true, output: true }
 
   this.operation = function (force = false) {
     orca.lock(this.x + this.ports.output.x, this.y + this.ports.output.y)
@@ -152,7 +152,7 @@ library.i = function OperatorI (orca, x, y, passive) {
 
   this.ports.step = { x: -1, y: 0, default: '1' }
   this.ports.mod = { x: 1, y: 0 }
-  this.ports.output = { x: 0, y: 1, sensitive: true, reader: true }
+  this.ports.output = { x: 0, y: 1, sensitive: true, reader: true, output: true }
 
   this.operation = function (force = false) {
     const step = this.listen(this.ports.step, true)
@@ -169,7 +169,7 @@ library.j = function OperatorJ (orca, x, y, passive) {
   this.info = 'Outputs northward operand'
 
   this.ports.val = { x: 0, y: -1 }
-  this.ports.output = { x: 0, y: 1 }
+  this.ports.output = { x: 0, y: 1, output: true }
 
   this.operation = function (force = false) {
     orca.lock(this.x, this.y + 1)
@@ -209,7 +209,7 @@ library.l = function OperatorL (orca, x, y, passive) {
 
   this.ports.a = { x: -1, y: 0 }
   this.ports.b = { x: 1, y: 0 }
-  this.ports.output = { x: 0, y: 1, sensitive: true }
+  this.ports.output = { x: 0, y: 1, sensitive: true, output: true }
 
   this.operation = function (force = false) {
     const a = this.listen(this.ports.a)
@@ -226,7 +226,7 @@ library.m = function OperatorM (orca, x, y, passive) {
 
   this.ports.a = { x: -1, y: 0 }
   this.ports.b = { x: 1, y: 0 }
-  this.ports.output = { x: 0, y: 1, sensitive: true }
+  this.ports.output = { x: 0, y: 1, sensitive: true, output: true }
 
   this.operation = function (force = false) {
     const a = this.listen(this.ports.a, true)
@@ -256,7 +256,7 @@ library.o = function OperatorO (orca, x, y, passive) {
 
   this.ports.x = { x: -2, y: 0 }
   this.ports.y = { x: -1, y: 0 }
-  this.ports.output = { x: 0, y: 1 }
+  this.ports.output = { x: 0, y: 1, output: true }
 
   this.operation = function (force = false) {
     const x = this.listen(this.ports.x, true)
@@ -282,7 +282,7 @@ library.p = function OperatorP (orca, x, y, passive) {
     for (let offset = 0; offset < len; offset++) {
       orca.lock(this.x + offset, this.y + 1)
     }
-    this.ports.output = { x: (key % len), y: 1 }
+    this.ports.output = { x: (key % len), y: 1, output: true }
     return this.listen(this.ports.val)
   }
 }
@@ -320,7 +320,7 @@ library.r = function OperatorR (orca, x, y, passive) {
 
   this.ports.min = { x: -1, y: 0 }
   this.ports.max = { x: 1, y: 0 }
-  this.ports.output = { x: 0, y: 1, sensitive: true }
+  this.ports.output = { x: 0, y: 1, sensitive: true, output: true }
 
   this.operation = function (force = false) {
     const min = this.listen(this.ports.min, true)
@@ -351,7 +351,7 @@ library.t = function OperatorT (orca, x, y, passive) {
 
   this.ports.key = { x: -2, y: 0 }
   this.ports.len = { x: -1, y: 0, clamp: { min: 1 } }
-  this.ports.output = { x: 0, y: 1 }
+  this.ports.output = { x: 0, y: 1, output: true }
 
   this.operation = function (force = false) {
     const len = this.listen(this.ports.len, true)
@@ -372,7 +372,7 @@ library.u = function OperatorU (orca, x, y, passive) {
 
   this.ports.step = { x: -1, y: 0, clamp: { min: 0 }, default: '1' }
   this.ports.max = { x: 1, y: 0, clamp: { min: 1 }, default: '8' }
-  this.ports.output = { x: 0, y: 1, bang: true }
+  this.ports.output = { x: 0, y: 1, bang: true, output: true }
 
   this.operation = function (force = false) {
     const step = this.listen(this.ports.step, true)
@@ -431,7 +431,7 @@ library.x = function OperatorX (orca, x, y, passive) {
   this.operation = function (force = false) {
     const x = this.listen(this.ports.x, true)
     const y = this.listen(this.ports.y, true) + 1
-    this.addPort('output', { x: x, y: y })
+    this.addPort('output', { x: x, y: y, output: true })
     return this.listen(this.ports.val)
   }
 }
@@ -443,7 +443,7 @@ library.y = function OperatorY (orca, x, y, passive) {
   this.info = 'Outputs westward operand'
 
   this.ports.val = { x: -1, y: 0 }
-  this.ports.output = { x: 1, y: 0 }
+  this.ports.output = { x: 1, y: 0, output: true }
 
   this.operation = function (force = false) {
     orca.lock(this.x + 1, this.y)
@@ -459,7 +459,7 @@ library.z = function OperatorZ (orca, x, y, passive) {
 
   this.ports.rate = { x: -1, y: 0, default: '1' }
   this.ports.target = { x: 1, y: 0 }
-  this.ports.output = { x: 0, y: 1, sensitive: true, reader: true }
+  this.ports.output = { x: 0, y: 1, sensitive: true, reader: true, output: true }
 
   this.operation = function (force = false) {
     const rate = this.listen(this.ports.rate, true)
diff --git a/desktop/sources/scripts/core/operator.js b/desktop/sources/scripts/core/operator.js
index 8cfe4b1..ac61c9a 100644
--- a/desktop/sources/scripts/core/operator.js
+++ b/desktop/sources/scripts/core/operator.js
@@ -32,8 +32,7 @@ function Operator (orca, x, y, glyph = '.', passive = false) {
 
   this.bang = function (b) {
     if (!this.ports.output) { console.warn(this.name, 'Trying to bang, but no port'); return }
-    if (b === false) { return }
-    orca.write(this.x + this.ports.output.x, this.y + this.ports.output.y, '*')
+    orca.write(this.x + this.ports.output.x, this.y + this.ports.output.y, b ? '*' : '.')
     orca.lock(this.x + this.ports.output.x, this.y + this.ports.output.y)
   }
 
@@ -113,23 +112,12 @@ function Operator (orca, x, y, glyph = '.', passive = false) {
     if (!this.passive) { return a }
     for (const id in this.ports) {
       const port = this.ports[id]
-      const type = this.getPortType(id)
+      const type = port.output ? 3 : port.x < 0 || port.y < 0 ? 1 : 2
       a.push([this.x + port.x, this.y + port.y, type, `${this.glyph}-${id}`])
     }
     return a
   }
 
-  this.getPortType = function (id) {
-    const port = this.ports[id]
-    if (port.output || id === 'output') {
-      return port.reader || port.bang ? 8 : 3
-    }
-    if (port.x < 0 || port.y < 0) {
-      return 1
-    }
-    return 2
-  }
-
   this.shouldUpperCase = function (ports = this.ports) {
     if (!this.ports.output || !this.ports.output.sensitive) { return false }
     const value = this.listen({ x: 1, y: 0 })