From f9d835048b60b886f93b41ee11cb54fe39819796 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Wed, 3 Jul 2013 23:55:50 +0000
Subject: added lookup table for commandlength

git-svn-id: https://svn.spreadspace.org/pic/trunk@30 a09c6847-51d9-44de-8ef2-e725cf50f3c7
---
 bootloader/bootloader.asm | 35 ++++++++++++++++++++++++++++-------
 1 file changed, 28 insertions(+), 7 deletions(-)

(limited to 'bootloader/bootloader.asm')

diff --git a/bootloader/bootloader.asm b/bootloader/bootloader.asm
index a1b858e..b32affd 100644
--- a/bootloader/bootloader.asm
+++ b/bootloader/bootloader.asm
@@ -33,6 +33,7 @@
 USERVECT        EQU       H'100'
 ISRVECT         EQU       USERVECT + H'4'
 FSS             EQU       8
+MESS            EQU       64
 
   ;; ERROR codes
 E_OK            EQU       0
@@ -71,9 +72,17 @@ CMD_R_CONFIG    EQU       7
 CCMD_W_CONFIG   EQU       'C'
 CMD_W_CONFIG    EQU       8
 
-  ;; ...
-CNT1		EQU	   H'0020'
-CNT2		EQU	   H'0021'
+  ;; Variables
+inbuff          EQU       H'0020'
+inbuff_end      EQU       H'006F'
+
+current_cmd     EQU       H'0070'
+current_cmdlen  EQU       H'0071'
+
+
+
+cnt1		EQU	  H'0070'
+cnt2		EQU	  H'0071'
 
   ;; -------------------------------------
   ;; Boot test
@@ -126,6 +135,18 @@ translate_cmd_codes
   retlw     CMD_W_CONFIG
   retlw     H'FF'
 
+get_cmd_len
+  addwf     PCL,f
+  retlw     1			; identify:     <csum>
+  retlw     1			; boot:         <csum>
+  retlw     1			; reset:        <csum>
+  retlw     3			; read flash:   addr | <csum>
+  retlw     3 + FSS		; write flash:  addr | data | <csum>
+  retlw     5			; read eeprom:  addr | len | <csum>
+  retlw     5			; write eeprom: addr | len | data | <csum> (minimal)
+  retlw     2			; read config:  nr | <csum>
+  retlw     4			; write config: nr | word | <csum>
+
   ;; -------------------------------------
   ;; Bootloader (init)
 boot
@@ -196,14 +217,14 @@ userloop
   movlw     b'00000001'
   xorwf     TRISD,f
   movlw     .255
-  movwf     CNT1
+  movwf     cnt1
 usercnt1
   movlw     .255
-  movwf     CNT2
+  movwf     cnt2
 usercnt2
-  decfsz    CNT2,f
+  decfsz    cnt2,f
   goto      usercnt2
-  decfsz    CNT1,f
+  decfsz    cnt1,f
   goto      usercnt1
   goto      userloop
 
-- 
cgit v1.2.3