Introduce sh4dsp-prizm target for fx-CG[10|20/50] calculators

examples/fizzbuzz.b

@@ -1,7 +1,15 @@
 main() {
     extrn printf;
+    extrn exit;
 
     auto i;
+
+    i = 0; while (i < (6 / 2)) {
+        printf("=");
+        i++;
+    }
+    printf("\n");
+
     i = 1;
 
     while (i <= 100) {
@@ -15,4 +23,5 @@ main() {
         printf("\n");
         i++;
     }
+    return;
 }

examples/prizm-test.b

@@ -0,0 +1,35 @@
+// -*- mode: simpc -*-
+y;
+str[6];
+
+main() {
+    extrn Bdisp_AllClr_VRAM;
+    extrn Bdisp_Fill_VRAM;
+    extrn Bdisp_PutDisp_DD;
+    extrn Bdisp_EnableColor;
+    extrn PrintPixXY;
+    extrn Bdisp_Rectangle;
+    auto color;
+    extrn exit;
+
+    color = 0;
+    y = 0;
+    str[0] = "  Hello World from B!";
+
+    while (1) {
+        //Bdisp_AllClr_VRAM();
+        Bdisp_Fill_VRAM(7, 4);
+        Bdisp_Rectangle(16 + y, 16 + 2 * y, 64 + y, 64 + 2 * y, 7 - color);
+        PrintPixXY(1,y,str[0],color);
+        Bdisp_PutDisp_DD();
+        color = color + 1;
+        if (color > 7) {
+            color = 0;
+        }
+
+        y = y + 1;
+        if (y > 110) {
+            y = 0;
+        }
+    }
+}

examples/truth.b

@@ -0,0 +1,20 @@
+// Written by LDA (seija-amanojaku)
+// ---------------------------------
+// Pretty much just a truth machine, as specified by https://esolangs.org/wiki/Truth-machine
+
+main() {
+    extrn printf, getchar;
+    auto input;
+
+    while (1) {
+        printf("Input?\n");
+        input = getchar();
+        if (input == '0') {
+            printf("0\n");
+            return (0);
+        } else if (input == '1') {
+            while (1) printf("1\n");
+        }
+    }
+    return (1);
+}