Watchdog ISR in assembly language

Development Libraries
8

This snippet of python is called:

asm2include.py filein fileout 

import sys, os

def asm2include(infile, outfile):

    line = ""
    with open(infile, 'r') as IN:
        for line in IN:
            line = line.strip(' ')
            if (line != ""):
                line = line.replace('  ',' ')
                OUT = open(outfile, "a")
                if (line.startswith("//") == False):
                    OUT.write("asm(\"")
                    OUT.write(line[:-1])
                    OUT.write("\");\n")
                else:
                    OUT.write(line)
                    OUT.write("\n")
                OUT.close()
            print '.',

""" --------------------------------------------------------------
MAIN APPLICATION
"""  

print "ASM2include 0.1"
asm2include(sys.argv[1], sys.argv[2])
print "Done"

produces this : (not all pasted)

asm("");
asm("#define r_temp1    r16 ");
asm("#define r_temp2    r17");
asm("#define r_command  r18");
asm("#define r_addr_lo  r19");
asm("#define r_addr_hi  r20");
asm("");
asm("#define  CMD_POLL   1");
asm("#define  CMD_B     2");
asm("#define  CMD_W     3");
asm("");
asm("#define  ACK    6");
asm("#define  NAK    15");
asm("");
asm("WDT_vect:");
asm("push  r16");
asm("in  r16,SREG");
asm("push  r16");
asm("push  r17");
asm("push  r18");
asm("push  r19");
asm("push  r20");
asm("push  r28");
asm("push  r29");
asm("push  r30");
asm("push  r31");
asm("");
// kick the watch dog

asm("wdr");
asm("");
asm("SHIFTIN r_command");
asm("");
asm("cpi  r_command,CMD_POLL");
asm("brne  not_poll");
asm("ldi  r_temp1, ACK");
asm("rjmp  transmit_answer_byte");
asm("");

I know this is not what you want, but what should be improved?

  • update
  • recognize the // commentlines in code above