adding thumb assembler, cant decide if I really want this here

2012-05-28 17:01:50 -04:00
parent 590d8b3f07
commit 4792bb0a31
6 changed files with 2952 additions and 0 deletions
--- a/tas/hexstring.c
+++ b/tas/hexstring.c
@@ -0,0 +1,30 @@
+
+void uart_send ( unsigned int );
+void hexstring ( unsigned int d )
+{
+    //unsigned int ra;
+    unsigned int rb;
+    unsigned int rc;
+
+    rb=32;
+    while(1)
+    {
+        rb-=4;
+        rc=(d>>rb)&0xF;
+        if(rc>9) rc+=0x37; else rc+=0x30;
+        uart_send(rc);
+        if(rb==0) break;
+    }
+    uart_send(0x0D);
+    uart_send(0x0A);
+}
+#define AUX_MU_IO_REG   (*((volatile unsigned int *)0x20215040))
+#define AUX_MU_LSR_REG  (*((volatile unsigned int *)0x20215054))
+void uart_send ( unsigned int x )
+{
+    while(1)
+    {
+        if(AUX_MU_LSR_REG&0x20) break;
+    }
+    AUX_MU_IO_REG=x;
+}