[iQue] Decompile dbpprint.c (#75)

Author: Thar0

include/PR/bcp.h

@@ -97,6 +97,13 @@
 
 
 
+#define	RDB_WRITE16(addr,data) (*(vu16*)PHYS_TO_K1(addr)=(u16)(data))
+#define	RDB_READ16(addr)       (*(vu16*)PHYS_TO_K1(addr))
+
+#define RDB_20000_REG (PI_BASE_REG + 0x20000)
+#define RDB_E0400_REG (PI_BASE_REG + 0xE0400)
+#define RDB_E8000_REG (PI_BASE_REG + 0xE8000)
+
 /**
  * Serial Interface (SI) Additional Registers
  */

src/bb/misc/dbpprint.c

@@ -0,0 +1,25 @@
+#include "PR/os_internal.h"
+#include "PR/bcp.h"
+
+void __osBbPPutter(void* str, char* buf, size_t n) {
+    int i = 0;
+
+    while (n != 0) {
+        RDB_WRITE16(RDB_E0400_REG, 0x500 | buf[i]);
+        IO_READ(RDB_20000_REG);
+
+        RDB_WRITE16(RDB_E8000_REG, 1);
+        IO_READ(RDB_20000_REG);
+
+        i++;
+
+        while (!(RDB_READ16(RDB_E8000_REG) & 8)) {
+            ;
+        }
+
+        RDB_WRITE16(RDB_E8000_REG, 8);
+        IO_READ(RDB_20000_REG);
+
+        n--;
+    }
+}