diff --git a/vm/asm.c b/vm/asm.c
index 79e5ae5..de65851 100644
--- a/vm/asm.c
+++ b/vm/asm.c
@@ -195,6 +195,8 @@ static inline uint16_t linety_arithm_ins(LineTy ty);
 
 void assemble_to_binary(uint16_t* out, const Line* lines, size_t lines_size)
 {
+    bool debug = false;
+
     uint16_t ip = 0;
 
     typedef struct {
@@ -218,8 +220,11 @@ void assemble_to_binary(uint16_t* out, const Line* lines, size_t lines_size)
         out[ip++] = 0;                                                         \
     }
 
-    printf("assembling...\n");
-    printf("ip op    n data...\n");
+    if (debug) {
+        printf("assembling...\n");
+        printf("ip op    n data...\n");
+    }
+
     for (size_t i = 0; i < lines_size; ++i) {
         bool is_label = false;
         bool is_data = false;
@@ -474,24 +479,28 @@ void assemble_to_binary(uint16_t* out, const Line* lines, size_t lines_size)
             }
         }
 
-        if (!is_label) {
-            printf("%02x %-5s %d",
-                ins_ip * 2,
-                is_data ? "data" : op_str(out[ins_ip] & 0x3f),
-                ip - ins_ip);
-            for (uint16_t i = 0; i < ip - ins_ip; ++i) {
-                printf(" %02x %c%c%c%c %c%c%c%c  %02x %c%c%c%c %c%c%c%c ",
-                    out[ins_ip + i] & 0xff,
-                    fmt_binary(out[ins_ip + i] & 0xff),
-                    out[ins_ip + i] >> 8,
-                    fmt_binary(out[ins_ip + i] >> 8));
+        if (debug) {
+            if (!is_label) {
+                printf("%02x %-5s %d",
+                    ins_ip * 2,
+                    is_data ? "data" : op_str(out[ins_ip] & 0x3f),
+                    ip - ins_ip);
+                for (uint16_t i = 0; i < ip - ins_ip; ++i) {
+                    printf(" %02x %c%c%c%c %c%c%c%c  %02x %c%c%c%c %c%c%c%c ",
+                        out[ins_ip + i] & 0xff,
+                        fmt_binary(out[ins_ip + i] & 0xff),
+                        out[ins_ip + i] >> 8,
+                        fmt_binary(out[ins_ip + i] >> 8));
+                }
+                printf("\n");
             }
-            printf("\n");
         }
     }
 
-    printf("resolving...\n");
-    printf(" l ip  v  data\n");
+    if (debug) {
+        printf("resolving...\n");
+        printf(" l ip  v  data\n");
+    }
     for (size_t i = 0; i < unres_labels_size; ++i) {
         bool found = false;
         for (size_t j = 0; j < res_labels_size; ++j) {
@@ -499,15 +508,18 @@ void assemble_to_binary(uint16_t* out, const Line* lines, size_t lines_size)
                 out[unres_labels[i].ptr] = res_labels[j].ip;
                 found = true;
 
-                printf("%2d %02x %02x  %02x %c%c%c%c %c%c%c%c  %02x %c%c%c%c "
-                       "%c%c%c%c\n",
-                    res_labels[j].label,
-                    unres_labels[i].ptr * 2,
-                    res_labels[j].ip,
-                    out[unres_labels[i].ptr] & 0xff,
-                    fmt_binary(out[unres_labels[i].ptr] & 0xff),
-                    out[unres_labels[i].ptr] >> 8,
-                    fmt_binary(out[unres_labels[i].ptr] >> 8));
+                if (debug) {
+                    printf(
+                        "%2d %02x %02x  %02x %c%c%c%c %c%c%c%c  %02x %c%c%c%c "
+                        "%c%c%c%c\n",
+                        res_labels[j].label,
+                        unres_labels[i].ptr * 2,
+                        res_labels[j].ip,
+                        out[unres_labels[i].ptr] & 0xff,
+                        fmt_binary(out[unres_labels[i].ptr] & 0xff),
+                        out[unres_labels[i].ptr] >> 8,
+                        fmt_binary(out[unres_labels[i].ptr] >> 8));
+                }
                 break;
             }
         }
@@ -517,7 +529,9 @@ void assemble_to_binary(uint16_t* out, const Line* lines, size_t lines_size)
                 unres_labels[i].label);
         }
     }
-    printf("done!\n");
+    if (debug) {
+        printf("done!\n");
+    }
 }
 
 static inline void add_dst_reg(uint32_t* ins, uint16_t reg)
diff --git a/vm/main.c b/vm/main.c
index 762e8e4..b493b3a 100644
--- a/vm/main.c
+++ b/vm/main.c
@@ -184,6 +184,7 @@ void sdldevice_destroy(SdlDevice* device)
 }
 
 extern const bool charset[][ch_height][ch_width];
+extern const uint64_t charset_2[];
 
 void sdldevice_set_char(IODevice* io_device, uint16_t offset, uint8_t value)
 {
@@ -207,7 +208,9 @@ void sdldevice_set_char(IODevice* io_device, uint16_t offset, uint8_t value)
 
     for (int ch_y = 0; ch_y < ch_height; ++ch_y) {
         for (int ch_x = 0; ch_x < ch_width; ++ch_x) {
-            bool ch = charset[value][ch_y][ch_x];
+            bool ch
+                = charset_2[value] >> (ch_y * ch_width + (ch_width - ch_x - 1))
+                & 1;
 
             for (int px_y = 0; px_y < px_height; ++px_y) {
                 for (int px_x = 0; px_x < px_width; ++px_x) {
@@ -475,14 +478,14 @@ int main(void)
         for (int y = 0; y < ch_height; ++y) {
             for (int x = 0; x < ch_width; ++x) {
                 if (charset[i][y][x]) {
-                    ch |= 1 << (y * ch_width + (ch_height - x - 1));
+                    ch |= 1ul << (y * ch_width + (ch_height - x - 1));
                 }
             }
         }
         printf("['%c'] = 0x%lX,\n", i, ch);
     }
 
-    return 0;
+    // return 0;
 
     MemDrive drive;
     memdrive_construct(&drive, (uint64_t*)program, 512);
@@ -505,6 +508,32 @@ const char* __asan_default_options(void)
 
 const uint64_t charset_2[] = {
     [' '] = 0x0000000000000000,
+    ['A'] = 0x66667E66667E1800,
+    ['B'] = 0x7C7E667C667E7800,
+    ['C'] = 0x3C7E6060607E3C00,
+    ['D'] = 0x7C7E6666667E7C00,
+    ['E'] = 0x7E7E607E607E7E00,
+    ['F'] = 0x60607878607E7E00,
+    ['G'] = 0x7E7E666E607E7E00,
+    ['H'] = 0x6666667E7E666600,
+    ['I'] = 0x7E7E1818187E7E00,
+    ['J'] = 0x3C7E6606067E7E00,
+    ['K'] = 0x666E7C7C6E666600,
+    ['L'] = 0x7E7E606060606000,
+    ['M'] = 0xC3C3C3C3DBFFE700,
+    ['N'] = 0x6666666E7E766600,
+    ['O'] = 0x3C66666666663C00,
+    ['P'] = 0x60607C7E667C7C00,
+    ['Q'] = 0x3F7E6E66667E3C00,
+    ['R'] = 0x666C7C7E667E7C00,
+    ['S'] = 0x3C66063C60663C00,
+    ['T'] = 0x18181818187E7E00,
+    ['U'] = 0x3C7E666666666600,
+    ['V'] = 0x183C7E6666666600,
+    ['W'] = 0xE7FFDBDBC3C3C300,
+    ['X'] = 0x6666663C3C666600,
+    ['Y'] = 0x181818183C666600,
+    ['Z'] = 0x7E7E30180C7E7E00,
 };
 
 #define _ false,