Add typedef alias for U8 -> Mark

base.h

@@ -78,6 +78,7 @@ typedef size_t Usz;
 typedef ssize_t Isz;
 
 typedef char Glyph;
+typedef U8 Mark;
 
 typedef Glyph* Gbuffer;
 

mark.h

@@ -10,7 +10,7 @@ typedef enum {
   Mark_flag_sleep = 1 << 4,
 } Mark_flags;
 
-typedef U8* Mbuffer;
+typedef Mark* Mbuffer;
 
 typedef struct Markmap_reusable {
   Mbuffer buffer;
@@ -63,7 +63,7 @@ ORCA_OK_IF_UNUSED
 static void mbuffer_poke_flags_or(Mbuffer map, Usz map_height, Usz map_width,
                                   Usz y, Usz x, Mark_flags flags) {
   (void)map_height;
-  map[y * map_width + x] |= (U8)flags;
+  map[y * map_width + x] |= (Mark)flags;
 }
 
 ORCA_OK_IF_UNUSED
@@ -75,5 +75,5 @@ static void mbuffer_poke_relative_flags_or(Mbuffer map, Usz map_height,
   Isz x0 = (Isz)x + offs_x;
   if (y0 >= (Isz)map_height || x0 >= (Isz)map_width || y0 < 0 || x0 < 0)
     return;
-  map[(Usz)y0 * map_width + (Usz)x0] |= (U8)flags;
+  map[(Usz)y0 * map_width + (Usz)x0] |= (Mark)flags;
 }

sim.c

@@ -162,7 +162,7 @@ Usz usz_clamp(Usz val, Usz min, Usz max) {
       Usz const width, Usz const y, Usz const x, Usz Tick_number
 #define OPER_PHASE_0_COMMON_ARGS                                               \
   OPER_PHASE_COMMON_ARGS, Oper_bank_write_params *const bank_params,           \
-      U8 const cell_flags
+      Mark const cell_flags
 #define OPER_PHASE_1_COMMON_ARGS                                               \
   OPER_PHASE_COMMON_ARGS, Oper_bank_read_params* const bank_params
 
@@ -622,10 +622,10 @@ BEGIN_DUAL_PHASE_0(count)
     Usz max_x = x + len;
     if (max_x > width)
       max_x = width;
-    U8* i = mbuffer + y * width + x + 1;
-    U8* e = mbuffer + y * width + max_x;
+    Mark* i = mbuffer + y * width + x + 1;
+    Mark* e = mbuffer + y * width + max_x;
     while (i != e) {
-      *i = (U8)(*i | Mark_flag_lock);
+      *i = (Mark)(*i | Mark_flag_lock);
       ++i;
     }
   }
@@ -830,12 +830,12 @@ static void sim_phase_0(Gbuffer gbuf, Mbuffer mbuf, Usz height, Usz width,
                         Usz tick_number, Oper_bank_write_params* bank_params) {
   for (Usz iy = 0; iy < height; ++iy) {
     Glyph const* glyph_row = gbuf + iy * width;
-    U8 const* mark_row = mbuf + iy * width;
+    Mark const* mark_row = mbuf + iy * width;
     for (Usz ix = 0; ix < width; ++ix) {
       Glyph glyph_char = glyph_row[ix];
       if (ORCA_LIKELY(glyph_char == '.'))
         continue;
-      U8 cell_flags = mark_row[ix] & (Mark_flag_lock | Mark_flag_sleep);
+      Mark cell_flags = mark_row[ix] & (Mark_flag_lock | Mark_flag_sleep);
       switch (glyph_char) {
         ORCA_SOLO_OPERATORS(SIM_EXPAND_SOLO_PHASE_0)
         ORCA_DUAL_OPERATORS(SIM_EXPAND_DUAL_PHASE_0)
@@ -848,7 +848,7 @@ static void sim_phase_1(Gbuffer gbuf, Mbuffer mbuf, Usz height, Usz width,
                         Usz tick_number, Oper_bank_read_params* bank_params) {
   for (Usz iy = 0; iy < height; ++iy) {
     Glyph const* glyph_row = gbuf + iy * width;
-    U8 const* mark_row = mbuf + iy * width;
+    Mark const* mark_row = mbuf + iy * width;
     for (Usz ix = 0; ix < width; ++ix) {
       Glyph glyph_char = glyph_row[ix];
       if (ORCA_LIKELY(glyph_char == '.'))