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

	Commit message (Collapse)	Author	Age	Files	Lines
*	notify: merged into statusbar, allow to view the log in the pager	hut	2010-01-01	1	-20/+0
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*	rename filelist(container) to browsercolumn/browserview	hut	2009-12-31	1	-18/+43
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*	updated uml project	hut	2009-12-30	1	-19/+99
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*	moved /uml to /doc/uml	hut	2009-12-25	1	-0/+1005

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<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Mu - linux/310copy-bytes.subx</title> <meta name="Generator" content="Vim/8.2"> <meta name="plugin-version" content="vim8.1_v2"> <meta name="syntax" content="none"> <meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=,use_input_for_pc=fallback"> <meta name="colorscheme" content="minimal-light"> <style>  </style> <script>  </script> </head> <body onload='JumpToLine();'> <a href='https://github.com/akkartik/mu/blob/main/linux/310copy-bytes.subx'>https://github.com/akkartik/mu/blob/main/linux/310copy-bytes.subx</a> <pre id='vimCodeElement'> 1 # Some helpers for copying non-overlapping regions of memory. 2 # Really only intended to be called from code generated by mu.subx. 3 4 == code 5 6 copy-bytes: # src: (addr byte), dest: (addr byte), size: int 7 # pseudocode: 8 # curr-src/esi = src 9 # curr-dest/edi = dest 10 # i/ecx = 0 11 # while true 12 # if (i >= size) break 13 # *curr-dest = *curr-src 14 # ++curr-src 15 # ++curr-dest 16 # ++i 17 # 18 # . prologue 19 55/push-ebp 20 89/<- %ebp 4/r32/esp 21 # . save registers 22 50/push-eax 23 51/push-ecx 24 52/push-edx 25 56/push-esi 26 57/push-edi 27 # curr-src/esi = src 28 8b/-> *(ebp+8) 6/r32/esi 29 # curr-dest/edi = dest 30 8b/-> *(ebp+0xc) 7/r32/edi 31 # var i/ecx: int = 0 32 b9/copy-to-ecx 0/imm32 33 # edx = size 34 8b/-> *(ebp+0x10) 2/r32/edx 35 { 36 # if (i >= size) break 37 39/compare %ecx 2/r32/edx 38 7d/jump-if->= break/disp8 39 # *curr-dest = *curr-src 40 8a/byte-> *esi 0/r32/AL 41 88/byte<- *edi 0/r32/AL 42 # update 43 46/increment-esi 44 47/increment-edi 45 41/increment-ecx 46 eb/jump loop/disp8 47 } 48 $copy-bytes:end: 49 # . restore registers 50 5f/pop-to-edi 51 5e/pop-to-esi 52 5a/pop-to-edx 53 59/pop-to-ecx 54 58/pop-to-eax 55 # . epilogue 56 89/<- %esp 5/r32/ebp 57 5d/pop-to-ebp 58 c3/return 59 60 stream-to-array: # in: (addr stream _), out: (addr handle array _) 61 # . prologue 62 55/push-ebp 63 89/<- %ebp 4/r32/esp 64 # . save registers 65 50/push-eax 66 51/push-ecx 67 52/push-edx 68 56/push-esi 69 # esi = s 70 8b/-> *(ebp+8) 6/r32/esi 71 # var len/ecx: int = s->write - s->read 72 8b/-> *esi 1/r32/ecx 73 2b/subtract *(esi+4) 1/r32/ecx 74 # allocate 75 (<a href='120allocate.subx.html#L584'>allocate-array</a> <a href='120allocate.subx.html#L27'>Heap</a> %ecx *(ebp+0xc)) 76 # var in/edx: (addr byte) = s->data + s->read 77 8b/-> *(esi+4) 2/r32/edx 78 8d/copy-address *(esi+edx+0xc) 2/r32/edx 79 # var dest/eax: (addr byte) = data for out 80 8b/-> *(ebp+0xc) 0/r32/eax 81 (<a href='120allocate.subx.html#L258'>lookup</a> *eax *(eax+4)) # => eax 82 8d/copy-address *(eax+4) 0/r32/eax 83 # 84 (<a href='310copy-bytes.subx.html#L6'>copy-bytes</a> %edx %eax %ecx) 85 $stream-to-array:end: 86 # . restore registers 87 5e/pop-to-esi 88 5a/pop-to-edx 89 59/pop-to-ecx 90 58/pop-to-eax 91 # . epilogue 92 89/<- %esp 5/r32/ebp 93 5d/pop-to-ebp 94 c3/return 95 96 test-stream-to-array: 97 # . prologue 98 55/push-ebp 99 89/<- %ebp 4/r32/esp 100 # setup 101 (<a href='106stream.subx.html#L17'>clear-stream</a> <a href='112read-byte.subx.html#L331'>_test-input-stream</a>) 102 (<a href='108write.subx.html#L24'>write</a> <a href='112read-byte.subx.html#L331'>_test-input-stream</a> "abc") 103 # skip something 104 (<a href='112read-byte.subx.html#L273'>read-byte</a> <a href='112read-byte.subx.html#L331'>_test-input-stream</a>) # => eax 105 # var out/ecx: (handle array byte) 106 68/push 0/imm32 107 68/push 0/imm32 108 89/<- %ecx 4/r32/esp 109 # 110 (<a href='310copy-bytes.subx.html#L60'>stream-to-array</a> <a href='112read-byte.subx.html#L331'>_test-input-stream</a> %ecx) 111 (<a href='120allocate.subx.html#L258'>lookup</a> *ecx *(ecx+4)) # => eax 112 (<a href='105string-equal.subx.html#L220'>check-strings-equal</a> %eax "bc") 113 # . epilogue 114 89/<- %esp 5/r32/ebp 115 5d/pop-to-ebp 116 c3/return 117 118 # like stream-to-array but ignore surrounding quotes 119 # we might do other stuff here later 120 unquote-stream-to-array: # in: (addr stream _), out: (addr handle array _) 121 # . prologue 122 55/push-ebp 123 89/<- %ebp 4/r32/esp 124 # . save registers 125 50/push-eax 126 51/push-ecx 127 52/push-edx 128 56/push-esi 129 # esi = s 130 8b/-> *(ebp+8) 6/r32/esi 131 # var len/ecx: int = s->write - s->read - 2 132 8b/-> *esi 1/r32/ecx 133 2b/subtract *(esi+4) 1/r32/ecx 134 81 7/subop/compare %ecx 2/imm32 135 7c/jump-if-< $unquote-stream-to-array:end/disp8 136 81 5/subop/subtract %ecx 2/imm32 137 # allocate 138 (<a href='120allocate.subx.html#L584'>allocate-array</a> <a href='120allocate.subx.html#L27'>Heap</a> %ecx *(ebp+0xc)) 139 # var in/edx: (addr byte) = s->data + s->read + 1 140 8b/-> *(esi+4) 2/r32/edx 141 8d/copy-address *(esi+edx+0xd) 2/r32/edx # Stream-data + 1 142 # var dest/eax: (addr byte) = data for out 143 8b/-> *(ebp+0xc) 0/r32/eax 144 (<a href='120allocate.subx.html#L258'>lookup</a> *eax *(eax+4)) # => eax 145 8d/copy-address *(eax+4) 0/r32/eax 146 # 147 (<a href='310copy-bytes.subx.html#L6'>copy-bytes</a> %edx %eax %ecx) 148 $unquote-stream-to-array:end: 149 # . restore registers 150 5e/pop-to-esi 151 5a/pop-to-edx 152 59/pop-to-ecx 153 58/pop-to-eax 154 # . epilogue 155 89/<- %esp 5/r32/ebp 156 5d/pop-to-ebp 157 c3/return </pre> </body> </html>