The zoom is a print mode that allows you to get a global view of the whole file or a memory map on a single screen. In this mode, each byte represents file_size/block_size bytes of the file. Use the pO (zoom out print mode) to enter this mode, or just toggle z in the visual mode to zoom-out/zoom-in.
The cursor can be used to scroll faster through the zoom out view. Pressing z again will zoom-in where at new cursor position.
[0x004048c5]> pz?
|Usage: pz [len] print zoomed blocks (filesize/N)
| e zoom.maxsz max size of block
| e zoom.from start address
| e zoom.to end address
| e zoom.byte specify how to calculate each byte
| pzp number of printable chars
| pzf count of flags in block
| pzs strings in range
| pz0 number of bytes with value '0'
| pzF number of bytes with value 0xFF
| pze calculate entropy and expand to 0-255 range
| pzh head (first byte value); This is the default mode
Let's see some examples:
[0x08049790]> pz // or default pzh
0x00000000 7f00 0000 e200 0000 146e 6f74 0300 0000 .........not....
0x00000010 0000 0000 0068 2102 00ff 2024 e8f0 007a .....h!... $...z
0x00000020 8c00 18c2 ffff 0080 4421 41c4 1500 5dff ........D!A...].
0x00000030 ff10 0018 0fc8 031a 000c 8484 e970 8648 .............p.H
0x00000040 d68b 3148 348b 03a0 8b0f c200 5d25 7074 ..1H4.......]%pt
0x00000050 7500 00e1 ffe8 58fe 4dc4 00e0 dbc8 b885 u.....X.M.......
[0x08049790]> e zoom.byte=p
[0x08049790]> pO // or pzp
0x00000000 2f47 0609 070a 0917 1e9e a4bd 2a1b 2c27 /G..........*.,'
0x00000010 322d 5671 8788 8182 5679 7568 82a2 7d89 2-Vq....Vyuh..}.
0x00000020 8173 7f7b 727a 9588 a07b 5c7d 8daf 836d .s.{rz...{\}...m
0x00000030 b167 6192 a67d 8aa2 6246 856e 8c9b 999f .ga..}..bF.n....
0x00000040 a774 96c3 b1a4 6c8e a07c 6a8f 8983 6a62 .t....l..|j...jb
0x00000050 7d66 625f 7ea4 7ea6 b4b6 8b57 a19f 71a2 }fb_~.~....W..q.
[0x08049790]> eval zoom.byte = flags
[0x08049790]> pO // or pzf
0x00406e65 48d0 80f9 360f 8745 ffff ffeb ae66 0f1f H...6..E.....f..
0x00406e75 4400 0083 f801 0f85 3fff ffff 410f b600 D.......?...A...
0x00406e85 3c78 0f87 6301 0000 0fb6 c8ff 24cd 0026 <x..c.......$..&
0x00406e95 4100 660f 1f84 0000 0000 0084 c074 043c A.f..........t.<
0x00406ea5 3a75 18b8 0500 0000 83f8 060f 95c0 e9cd :u..............
0x00406eb5 feff ff0f 1f84 0000 0000 0041 8801 4983 ...........A..I.
0x00406ec5 c001 4983 c201 4983 c101 e9ec feff ff0f ..I...I.........
[0x08049790]> e zoom.byte=F
[0x08049790]> pO // or pzF
0x00000000 0000 0000 0000 0000 0000 0000 0000 0000 ................
0x00000010 0000 2b5c 5757 3a14 331f 1b23 0315 1d18 ..+\WW:.3..#....
0x00000020 222a 2330 2b31 2e2a 1714 200d 1512 383d "*#0+1.*.. ...8=
0x00000030 1e1a 181b 0a10 1a21 2a36 281e 1d1c 0e11 .......!*6(.....
0x00000040 1b2a 2f22 2229 181e 231e 181c 1913 262b .*/"")..#.....&+
0x00000050 2b30 4741 422f 382a 1e22 0f17 0f10 3913 +0GAB/8*."....9.
You can limit zooming to a range of bytes instead of the whole bytespace. Change zoom.from and zoom.to eval variables:
[0x465D8810]> e zoom.
zoom.byte = f
zoom.from = 0
zoom.maxsz = 512
zoom.to = 118368???