avr: reorganized common code.

avr/common/eeprom-r.asm

@@ -60,7 +60,6 @@ Eeprom_ReadByte_ret:
 ; ---------------------------------------------------------------------------
 ; @routine Eeprom_CheckAddr
 ;
-;
 ; @param X EEPROM Address to validate
 ; @return CFLAG set if address okay, cleared if out of range
 ; @clobbers r16
@@ -75,6 +74,30 @@ Eeprom_CheckAddr:
 
 
 
+; ---------------------------------------------------------------------------
+; @routine Eeprom_ReadBytes
+;
+; @param X    EEPROM Address to read from
+; @param Y    address in SDRAM to write to
+; @param R17  number of bytes to copy
+; @clobbers r16, r17, X, Y
+
+Eeprom_ReadBytes:
+Eeprom_ReadBytes_loop:
+    rcall Eeprom_ReadByte ; r16=byte read (none)
+    brcc Eeprom_ReadBytes_done
+    st Y+, r16
+    adiw xh:xl, 1
+    dec r17
+  brne Eeprom_ReadBytes_loop
+  sec
+Eeprom_ReadBytes_done:
+  ret
+; @end
+
+
+
+
 
 #endif ; AQH_AVR_COMMON_EEPROM_R_H