ranger - mirror of ranger - a simple, vim-like file manager

	Commit message (Expand)	Author	Age	Files	Lines
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*	readme: improved	hut	2010-01-20	1	-6/+13
*	1.0.2! v1.0.2	hut	2010-01-14	1	-2/+2
*	readme: added part "customizing ranger"	hut	2010-01-14	1	-0/+16
*	readme: removed ugly sentence	hut	2010-01-14	1	-3/+1
*	new minor version v1.0.1	hut	2010-01-02	1	-2/+2
*	readme: updated	hut	2010-01-01	1	-4/+77
*	decided to use python from now on	hut	2009-11-22	1	-1/+1
*	Initial commit	hut	2009-11-16	1	-0/+11

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Mu - subx/examples/ex8.subx</title> <meta name="Generator" content="Vim/8.0"> <meta name="plugin-version" content="vim7.4_v2"> <meta name="syntax" content="none"> <meta name="settings" content="number_lines,use_css,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> <meta name="colorscheme" content="minimal"> <style type="text/css">  </style> <script type='text/javascript'>  </script> </head> <body onload='JumpToLine();'> <a href='https://github.com/akkartik/mu/blob/master/subx/examples/ex8.subx'>https://github.com/akkartik/mu/blob/master/subx/examples/ex8.subx</a> <pre id='vimCodeElement'> 1 # Example reading commandline arguments: compute length of first arg. 2 # 3 # To run (from the subx directory): 4 # $ subx translate examples/ex8.subx -o examples/ex8 5 # $ subx run examples/ex8 abc de fghi 6 # Expected result: 7 # $ echo $? 8 # 3 # length of 'abc' 9 # 10 # At the start of a SubX program: 11 # argc: *ESP 12 # argv[0]: *(ESP+4) 13 # argv[1]: *(ESP+8) 14 # ... 15 # Locals start from ESP-4 downwards. 16 17 == code 18 # instruction effective address register displacement immediate 19 # . op subop mod rm32 base index scale r32 20 # . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes 21 22 # . prolog 23 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP 24 # EAX = ascii-length(argv[1]) 25 # . . push args 26 ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x8/disp8 . # push *(EBP+8) 27 # . . call 28 e8/call ascii-length/disp32 29 # . . discard args 30 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP 31 32 # exit(EAX) 33 89/copy 3/mod/direct 3/rm32/EBX . . . 0/r32/EAX . . # copy EAX to EBX 34 b8/copy-to-EAX 1/imm32/exit 35 cd/syscall 0x80/imm8 36 37 ascii-length: # s : (address array byte) -> n/EAX 38 # EDX = s 39 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none . 2/r32/EDX 4/disp8 . # copy *(ESP+4) to EDX 40 # var result/EAX = 0 41 b8/copy-to-EAX 0/imm32 42 $ascii-length-loop: 43 # var c/ECX = *s 44 8a/copy 0/mod/* 2/rm32/EDX . . . 1/r32/ECX . . # copy byte at *EDX to lower byte of ECX 45 # if c == '\0' break 46 81 7/subop/compare 3/mod/direct 1/rm32/ECX . . . . . 0/imm32 # compare ECX 47 74/jump-if-equal $ascii-length-ret/disp8 48 # ++s 49 81 0/subop/add 3/mod/direct 2/rm32/EDX . . . . . 1/imm32 # add to EDX 50 # ++result 51 40/inc-EAX 52 # loop 53 eb/jump $ascii-length-loop/disp8 54 $ascii-length-ret: 55 # return EAX 56 c3/return 57 58 # . . vim:nowrap:textwidth=0 </pre> </body> </html>