Build boot ROMs with RGBDS 0.9.4 or greater

.github/actions/install_deps.sh

@@ -4,7 +4,7 @@ case `echo $1 | cut -d '-' -f 1` in
                 sudo apt-get install -yq bison libpng-dev pkg-config libsdl2-dev libgdk-pixbuf2.0-dev
                 (
                 cd `mktemp -d`
-                curl -L https://github.com/rednex/rgbds/archive/v0.6.0.zip > rgbds.zip
+                curl -L https://github.com/gbdev/rgbds/archive/v0.9.4.zip > rgbds.zip
                 unzip rgbds.zip
                 cd rgbds-*
                 make -sj
@@ -33,4 +33,4 @@ case `echo $1 | cut -d '-' -f 1` in
                 echo "Unsupported OS"
                 exit 1
                 ;;
-esac
+esac

.github/actions/sanity_tests.sh

@@ -32,4 +32,4 @@ if [ -n "$FAILED_TESTS" ] ; then
     exit 1
 fi
 
-echo Passed all tests
+echo Passed all tests

BootROMs/cgb_boot.asm

@@ -981,10 +981,10 @@ GetPaletteIndex:
 .newLicensee
     ld l, LOW(NewLicenseeCode)
     ld a, [hli]
-    cp "0"
+    cp '0'
     jr nz, .notNintendo
     ld a, [hl]
-    cp "1"
+    cp '1'
     jr nz, .notNintendo
 
 .doChecksum

Makefile

@@ -171,10 +171,8 @@ RGBASM  := $(RGBDS)rgbasm
 RGBLINK := $(RGBDS)rgblink
 RGBGFX  := $(RGBDS)rgbgfx
 
-# RGBASM 0.7+ deprecate and remove `-h`
-RGBASM_FLAGS := $(if $(filter $(shell echo 'println __RGBDS_MAJOR__ || (!__RGBDS_MAJOR__ && __RGBDS_MINOR__ > 6)' | $(RGBASM) -), $$0), -h,) --include $(OBJ)/BootROMs/ --include BootROMs/
-# RGBGFX 0.6+ replace `-h` with `-Z`, and need `-c embedded`
-RGBGFX_FLAGS := $(if $(filter $(shell echo 'println __RGBDS_MAJOR__ || (!__RGBDS_MAJOR__ && __RGBDS_MINOR__ > 5)' | $(RGBASM) -), $$0), -h -u, -Z -u -c embedded)
+RGBASM_FLAGS := --include $(OBJ)/BootROMs/ --include BootROMs/
+RGBGFX_FLAGS := --columns --unique-tiles --colors embedded
 
 
 # Set compilation and linkage flags based on target, platform and configuration