git subrepo clone https://github.com/HarbourMasters/soh.git

subrepo:
  subdir:   "soh"
  merged:   "ba904bbd0"
upstream:
  origin:   "https://github.com/HarbourMasters/soh.git"
  branch:   "master"
  commit:   "ba904bbd0"
git-subrepo:
  version:  "0.4.1"
  origin:   "???"
  commit:   "???"

soh/include/command_macros_base.h

@@ -0,0 +1,27 @@
+#ifndef COMMAND_MACROS_BASE_H
+#define COMMAND_MACROS_BASE_H
+
+/**
+ * Command Base macros intended for use in designing of more specific command macros
+ * Each macro packs bytes (B), halfwords (H) and words (W, for consistency) into a single word
+ */
+
+#define CMD_BBBB(a, b, c, d) (_SHIFTL(a, 0, 8) | _SHIFTL(b, 8, 8) | _SHIFTL(c, 16, 8) | _SHIFTL(d, 24, 8))
+
+#define CMD_BBH(a, b, c) (_SHIFTL(a, 0, 8) | _SHIFTL(b, 8, 8) | _SHIFTL(c, 16, 16))
+
+#define CMD_HBB(a, b, c) (_SHIFTL(a, 0, 16) | _SHIFTL(b, 16, 8) | _SHIFTL(c, 24, 8))
+
+#define CMD_HH(a, b) (_SHIFTL(a, 0, 16) | _SHIFTL(b, 16, 16))
+
+#define CMD_W(a) (a)
+
+#if defined(__GNUC__) || defined(_MSC_VER)
+#define CMD_F(a) {.f = (a)}
+#else
+#define CMD_F(a) {(a)}
+#endif
+
+#define CMD_PTR(a) (uintptr_t)(a)
+
+#endif