mu - Soul of a tiny new machine. More thorough tests → More comprehensible and rewrite-friendly software → More resilient society.

	Commit message (Expand)	Author	Age	Files	Lines
*	5883 - drop the `ref` keyword	Kartik Agaram	2020-01-12	1	-5/+5
*	5876 - address -> addr	Kartik Agaram	2020-01-03	1	-6/+6
*	5804	Kartik Agaram	2019-12-08	1	-9/+9
*	5790	Kartik Agaram	2019-12-05	1	-9/+9
*	5714	Kartik Agaram	2019-10-25	1	-16/+14
*	5700	Kartik Agaram	2019-10-17	1	-3/+3
*	5698	Kartik Agaram	2019-10-15	1	-6/+6
*	5608 - write int to stream	Kartik Agaram	2019-09-02	1	-3/+3
*	5592 - switch register names to lowercase	Kartik Agaram	2019-08-26	1	-81/+81
*	standardize test input/output/error streams	Kartik Agaram	2019-08-13	1	-0/+86
*	5485 - promote SubX to top-level	Kartik Agaram	2019-07-27	1	-0/+288

<!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 - 051test.subx</title> <meta name="Generator" content="Vim/8.1"> <meta name="plugin-version" content="vim8.1_v1"> <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-light"> <style type="text/css">  </style> <script type='text/javascript'>  </script> </head> <body onload='JumpToLine();'> <a href='https://github.com/akkartik/mu/blob/master/051test.subx'>https://github.com/akkartik/mu/blob/master/051test.subx</a> <pre id='vimCodeElement'> 1 # Rudimentary test harness 2 3 == code 4 # instruction effective address register displacement immediate 5 # . op subop mod rm32 base index scale r32 6 # . 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 7 8 Entry: # manual test 9 # check-ints-equal(34, 34) 10 # . . push args 11 68/push "error in check-ints-equal"/imm32 12 68/push 34/imm32 13 68/push 34/imm32 14 # . . call 15 e8/call <a href='051test.subx.html#L24'>check-ints-equal</a>/disp32 16 # . . discard args 17 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp 18 # syscall(exit, 0) 19 bb/copy-to-ebx 0/imm32 20 b8/copy-to-eax 1/imm32/exit 21 cd/syscall 0x80/imm8 22 23 # print msg to stderr if a != b, otherwise print "." 24 check-ints-equal: # a : int, b : int, msg : (address array byte) 25 # . prologue 26 55/push-ebp 27 89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp 28 # . save registers 29 50/push-eax 30 51/push-ecx 31 53/push-ebx 32 # load first 2 args into eax and ebx 33 8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 0/r32/eax 8/disp8 . # copy *(ebp+8) to eax 34 8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 3/r32/ebx 0xc/disp8 . # copy *(ebp+12) to ebx 35 # if (eax == ebx) success 36 39/compare 3/mod/direct 0/rm32/eax . . . 3/r32/ebx . . # compare eax and ebx 37 75/jump-if-unequal $check-ints-equal:else/disp8 38 # . _write(2/stderr, '.') 39 # . . push args 40 68/push "."/imm32 41 68/push 2/imm32/stderr 42 # . . call 43 e8/call <a href='050_write.subx.html#L34'>_write</a>/disp32 44 # . . discard args 45 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp 46 # . return 47 eb/jump $check-ints-equal:end/disp8 48 # otherwise print error message 49 $check-ints-equal:else: 50 # . _write(2/stderr, msg) 51 # . . push args 52 8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 1/r32/ecx 0x10/disp8 . # copy *(ebp+16) to ecx 53 51/push-ecx 54 68/push 2/imm32/stderr 55 # . . call 56 e8/call <a href='050_write.subx.html#L34'>_write</a>/disp32 57 # . . discard args 58 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp 59 # . _write(2/stderr, Newline) 60 # . . push args 61 68/push <a href='051test.subx.html#L83'>Newline</a>/imm32 62 68/push 2/imm32/stderr 63 # . . call 64 e8/call <a href='050_write.subx.html#L34'>_write</a>/disp32 65 # . . discard args 66 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp 67 # increment Num-test-failures 68 ff 0/subop/increment 0/mod/indirect 5/rm32/.disp32 . . . <a href='051test.subx.html#L90'>Num-test-failures</a>/disp32 # increment *Num-test-failures 69 $check-ints-equal:end: 70 # . restore registers 71 5b/pop-to-ebx 72 59/pop-to-ecx 73 58/pop-to-eax 74 # . epilogue 75 89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp 76 5d/pop-to-ebp 77 c3/return 78 79 == data 80 81 # length-prefixed string containing just a single newline 82 # convenient to have when printing messages and so on 83 Newline: # (ref array byte) 84 # size : int 85 1/imm32 86 # data 87 0a/newline 88 89 # every test failure increments this counter 90 Num-test-failures: # int 91 0/imm32 92 93 # length-prefixed string containing just a single space 94 Space: # (ref array byte) 95 # size : int 96 1/imm32 97 # data 98 20/space 99 100 # length-prefixed string containing just a single slash 101 Slash: # (ref array byte) 102 # size : int 103 1/imm32 104 # data 105 2f/slash 106 107 # . . vim:nowrap:textwidth=0 </pre> </body> </html>