cmake: restore options USER_VRAM and STATIC_GRAY

CMakeLists.txt

@@ -1,5 +1,4 @@
 # Build system for the gint unikernel
-# TODO: Options for NO_SYSCALLS, STATIC_GRAY, USER_VRAM, ATEXIT_MAX
 
 cmake_minimum_required(VERSION 3.18)
 project(Gint VERSION 2.3.0 LANGUAGES C ASM)
@@ -7,7 +6,10 @@ project(Gint VERSION 2.3.0 LANGUAGES C ASM)
 include(GitVersionNumber)
 include(Fxconv)
 
-# Generate <gint/config.h> with commit hash and version name in
+option(GINT_USER_VRAM "Put all VRAMs into the user stack (fx-CG 50 only)")
+option(GINT_STATIC_GRAY "Use static memory instead of malloc for gray buffers (fx-9860G only)")
+
+# Generate <gint/config.h> with commit hash, version name and options
 git_version_number(SHORT_HASH "GINT_GIT_HASH" TAG_RELATIVE "GINT_GIT_VERSION")
 configure_file(include/gint/config.h.in include/gint/config.h)
 

include/gint/config.h.in

@@ -16,4 +16,12 @@
      0x03f7c0a0 = Commit 3f7c0a0 */
 #define GINT_HASH 0x@GINT_GIT_HASH@
 
+/* GINT_USER_VRAM: Selects whether to store VRAMs in the user stack (occupying
+   350k/512k of the area) or in the system stack (the default). (fx-CG 50) */
+#cmakedefine GINT_USER_VRAM
+
+/* GINT_STATIC_GRAY: Selects whether additional gray VRAMs are allocated
+   statically or in the system heap (fx-9860G) */
+#cmakedefine GINT_STATIC_GRAY
+
 #endif /* GINT_CONFIG */

src/render-cg/dvram.c

@@ -1,5 +1,6 @@
 #include <gint/display.h>
 #include <gint/hardware.h>
+#include <gint/config.h>
 
 #ifdef GINT_USER_VRAM
 /* We want to put the VRAM in the user section, however we can't use the
@@ -10,7 +11,7 @@
 GALIGNED(4) GSECTION(".bss.vram") int8_t _gint_vram_buffers[396*224*2];
 
 /* In this case, we can define pointers to our user stack directly, these will
-   be the physical address associated with _vram_buffers */
+   be the physical address associated with _gint_vram_buffers */
 static uint16_t *main = (void *)0xac161400;
 static uint16_t *scnd = (void *)0xac18c900;