git.y1.nz

commit fd4e12732c4d2fd38e08ded5037524d6033602ad
parent 3e5e99404692563c60d04b1a673b20d44bc585ec
Author: bbbbbr <bbbbbr@users.noreply.github.com>
Date:   Tue, 27 Jun 2023 20:07:44 -0700

Merge pull request #529 from veganlies2me/develop

Example program idea: Program that detects which Game Boy the ROM is being run on
Diffstat:
A
gbdk-lib/examples/gb/gbcheck/Makefile
12
++++++++++++
A
gbdk-lib/examples/gb/gbcheck/gbcheck.c
24
++++++++++++++++++++++++

2 files changed, 36 insertions(+), 0 deletions(-)
diff --git a/gbdk-lib/examples/gb/gbcheck/Makefile b/gbdk-lib/examples/gb/gbcheck/Makefile
@@ -0,0 +1,12 @@
+CC	= ../../../bin/lcc
+
+all:
+	$(CC) -Wm-ys -o gbcheck.gb gbcheck.c 
+
+compile.bat: Makefile
+	@echo "REM Automatically generated from Makefile" > compile.bat
+	@make -sn | sed y/\\//\\\\/ | sed s/mkdir\ \-p/mkdir/ | grep -v make >> compile.bat
+
+clean:
+	rm -f *.o *.lst *.map *.gb *.ihx *.sym *.cdb *.adb *.asm
+
diff --git a/gbdk-lib/examples/gb/gbcheck/gbcheck.c b/gbdk-lib/examples/gb/gbcheck/gbcheck.c
@@ -0,0 +1,23 @@
+#include <gbdk/platform.h>
+#include <stdio.h>
+void main(void)
+{
+    // Wait 4 frames
+    // For PAL SNES(SGB) this delay is required on startup
+    for (uint8_t i = 4; i != 0; i--)
+        vsync();
+    uint8_t issgb = sgb_check();//sgb_check() is slow, so it's better to call it once and save the result to test with
+    if ((_cpu == DMG_TYPE) && (!issgb))printf("This is a DMG! (OG Game Boy)");
+    else if ((_cpu == MGB_TYPE) && (!issgb))printf("This is a MGB! (Game Boy Pocket / Light)");
+    //Super Game Boys below
+    else if ((_cpu == DMG_TYPE) && (issgb))printf("This is a SGB1!");
+    else if ((_cpu == MGB_TYPE) && (issgb))printf("This is a SGB2!");
+    //Game Boy Color
+    else if ((_cpu == CGB_TYPE) && (!_is_GBA))printf("This is a CGB! (Game Boy Color)");
+    //The GBA acts like a Game Boy Color. Adding !_is_GBA will make sure this only shows on a GBC
+    else if(_is_GBA)printf("This is a GBA in CGB mode!");
+    while(1)
+    {
+        vsync();
+    }
+}
+

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