Re: [Nasm-devel] Bug? Or Nasm-abuse?

[Ed B. <be...@mi...>]

Frank Kotler wrote:

> works fine. I have also confirmed that we can assemble his file by
> increasing the value of DEADMAN_LIMIT in preproc.c to 1<<31. I don't
> consider it a "bug" that needs to be "fixed", but I promised him I'd
> discuss it with y'all. Any thoughts?

Definitely nasm abuse.  Tell the poster to break up the lines into 
human-sized chunks.  A simple way to do this is to replace the ln_10_2() 
function with the following enhanced version (the four new lines are 
marked with # new line):

import math

def ieee754(x):
     import struct
     return hex(struct.unpack('>l', struct.pack('>f', x))[0])

def ln(x, n):
     ln_x = 0
     for k in range(1, n):
         k = float(k)
         ln_x += float((1/(2*k-1)) * (((x-1)/(x+1))**(2*k-1)))
     return float(2*ln_x)

def ln0_10_2(i):
     start = 0
     step = 1
     stop = 10**i
     n = 0   # new line
     with open('log_0x10.inc','w') as file:
         file.write('log2_table dd ')
     while (start != stop):
         start += step
         with open('log_0x10.inc','a') as file:
	    if (n & 3) == 3:    # new line
		file.write("\n dd ");   # new line
	    n += 1 # new line
             file.write('%s, ' % ieee754(math.log(start,2)))

ln0_10_2(6)
print ieee754(math.log(10**4,2));

'''
ln(x) = ln(a * 10 ^ i)
x = a * 10 ^ i
a = x / 10 ^ i
0.0005 =
'''