Diff: myAssembly.S

Revision:

0:9c65f066245c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/myAssembly.S	Tue Dec 07 07:20:04 2021 +0000
@@ -0,0 +1,37 @@
+                    AREA myAssembly, CODE, READONLY 
+                    GLOBAL compare 
+     
+                    ; bool compare(uint32_t *) 
+compare              
+                     LDRH R3,[R0]; Y position   
+                     
+                       
+        MOV R1, #0; 1/4 of y length of screen
+        
+        
+        CMP R3, R1 ; return true if screen section is withing the 1/3 of the screen selected.
+        
+        MOVGT R0, #1
+        ADD R1, R1, #80
+        
+        CMP R3, R1 ; return true if screen section is withing the 1/4 of the screen selected.
+        
+        MOVGT R0, #2
+        ADD R1, R1, #80
+        
+        CMP R3, R1 ; return true if screen section is withing the 1/4 of the screen selected.
+        
+        MOVGT R0, #3
+        
+        
+        ADD R1, R1, #80
+        CMP R3, R1
+        MOVGT R0, #4
+                     
+                     
+                     
+                     
+                     BX LR 
+                    
+                    
+                    END
\ No newline at end of file