Home » Personal collection » Acorn ADFS disks » Electron_User_Group » EUG_23.ADF » F/M\CTUT3
F/M\CTUT3
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
Tape/disk: | Home » Personal collection » Acorn ADFS disks » Electron_User_Group » EUG_23.ADF |
Filename: | F/M\CTUT3 |
Read OK: | ✔ |
File size: | 0B79 bytes |
Load address: | 4D204556 |
Exec address: | 5554432F |
File contents
The main loop (190) first sets the event vector to Z% (&2885) for the tune as already explained. dat1 codes (1620) are set up by line 200. These give the commands for MODE 5, cursor off, VDU19,3,2,0,0,0 to change white to green, VDU17,1 changes the print colour red and the print position is then set to TAB(5,5). The title (630) is then printed using the dh routine. dat2 codes (1640) are set by line 210. The underline caharacter CHR$250 is set up using VDU23, VDU17,2 gives the colour yellow and then the print position to TAB(5,7). The underlines (1650) are then printed with the dh routine. dat3 codes (1660-1750) print the menu options (line 220) first changing the colour to green then to yellow for the lower underlines. Line 230 returns the print colour to green The value of spd is set at line 240 to give the middle speed. The routine choose is then called (250). ?&358 is loaded with 90 and the screen cleared. This gives the orange screen. ?&358 is then returned to zreo as normal (260) dat2 codes (1760-1810) are set at line 270. The three windows are set up and printing needed dell is called three times (290) to give a pause between levels The load routine is called (300) to set up the data for the level as explained. The tune is turned off at line 310 Line 320 calls calc to calculate D% from MX% and MY% for setting up the display. These are saved as sD%, smx% and smy% for returning to the start position after losing a life. Lines 340 to 390 are the main game loop. As this involves the original coding, I cannot explain this fully. The speed delay is called at line 360. The remaining totals are printed at line 370. In line 380 - If kt%=255, key not collected, routine ki is called if cn%=0 cn% is increased each time to provide a delay for the flashing key If kt%=0 when the key is collected the program branches to fin at the end of the line and ki is not called. chk1 is called at line 490 If lvend, level completed, branch to nexlev If deadman, lose a life, branch to lose and reset display to start position else move Then if li%=0 branch to endgame else to game1 to continue nexlev (400) resets the variables to zero and clears the display area by printing spaces (data at &5700) and returns to st1 to continue the game. endgame (400-470) line 420 resets li% and clears the display as above endat (1960,1970) message is given at line 430 The tune is started at line 440 Line 450 waits for space to be pressed by routine rep The tune is stopped and keyboard buffer cleared at line 460 Then the program returns to st1 to restart the game I hope that I have given a reasonable description of the coding. If there is any more I can add, I will do so next time. Also I hope to have the start of a little adventure game written in M/code which I hope to explain.
00000000 0d 54 68 65 20 6d 61 69 6e 20 6c 6f 6f 70 20 28 |.The main loop (| 00000010 31 39 30 29 20 66 69 72 73 74 20 73 65 74 73 20 |190) first sets | 00000020 74 68 65 20 65 76 65 6e 74 20 76 65 63 74 6f 72 |the event vector| 00000030 20 74 6f 20 5a 25 20 28 26 32 38 38 35 29 20 66 | to Z% (&2885) f| 00000040 6f 72 20 74 68 65 20 74 75 6e 65 0d 61 73 20 61 |or the tune.as a| 00000050 6c 72 65 61 64 79 20 65 78 70 6c 61 69 6e 65 64 |lready explained| 00000060 2e 0d 0d 64 61 74 31 1a 20 63 6f 64 65 73 1a 20 |...dat1. codes. | 00000070 28 31 36 32 30 29 1a 20 61 72 65 1a 20 73 65 74 |(1620). are. set| 00000080 20 75 70 20 62 79 20 6c 69 6e 65 20 32 30 30 2e | up by line 200.| 00000090 20 20 54 68 65 73 65 20 67 69 76 65 20 74 68 65 | These give the| 000000a0 20 63 6f 6d 6d 61 6e 64 73 20 66 6f 72 0d 4d 4f | commands for.MO| 000000b0 44 45 1a 20 35 2c 1a 20 63 75 72 73 6f 72 1a 20 |DE. 5,. cursor. | 000000c0 6f 66 66 2c 20 56 44 55 31 39 2c 33 2c 32 2c 30 |off, VDU19,3,2,0| 000000d0 2c 30 2c 30 1a 20 74 6f 1a 20 63 68 61 6e 67 65 |,0,0. to. change| 000000e0 20 77 68 69 74 65 20 74 6f 20 67 72 65 65 6e 2c | white to green,| 000000f0 20 56 44 55 31 37 2c 31 0d 63 68 61 6e 67 65 73 | VDU17,1.changes| 00000100 20 74 68 65 20 70 72 69 6e 74 20 63 6f 6c 6f 75 | the print colou| 00000110 72 20 72 65 64 1a 20 61 6e 64 1a 20 74 68 65 1a |r red. and. the.| 00000120 20 70 72 69 6e 74 1a 20 70 6f 73 69 74 69 6f 6e | print. position| 00000130 1a 20 69 73 1a 20 74 68 65 6e 1a 20 73 65 74 1a |. is. then. set.| 00000140 20 74 6f 0d 54 41 42 28 35 2c 35 29 2e 20 20 54 | to.TAB(5,5). T| 00000150 68 65 20 74 69 74 6c 65 20 28 36 33 30 29 20 69 |he title (630) i| 00000160 73 20 74 68 65 6e 20 70 72 69 6e 74 65 64 20 75 |s then printed u| 00000170 73 69 6e 67 20 74 68 65 20 64 68 20 72 6f 75 74 |sing the dh rout| 00000180 69 6e 65 2e 0d 0d 64 61 74 32 20 63 6f 64 65 73 |ine...dat2 codes| 00000190 20 28 31 36 34 30 29 20 61 72 65 20 73 65 74 20 | (1640) are set | 000001a0 62 79 20 6c 69 6e 65 20 32 31 30 2e 1a 20 20 54 |by line 210.. T| 000001b0 68 65 1a 20 75 6e 64 65 72 6c 69 6e 65 20 63 61 |he. underline ca| 000001c0 68 61 72 61 63 74 65 72 20 43 48 52 24 32 35 30 |haracter CHR$250| 000001d0 0d 69 73 1a 20 73 65 74 20 75 70 20 75 73 69 6e |.is. set up usin| 000001e0 67 20 56 44 55 32 33 2c 20 56 44 55 31 37 2c 32 |g VDU23, VDU17,2| 000001f0 20 67 69 76 65 73 20 74 68 65 20 63 6f 6c 6f 75 | gives the colou| 00000200 72 20 79 65 6c 6c 6f 77 20 61 6e 64 20 74 68 65 |r yellow and the| 00000210 6e 20 74 68 65 20 70 72 69 6e 74 0d 70 6f 73 69 |n the print.posi| 00000220 74 69 6f 6e 20 74 6f 20 54 41 42 28 35 2c 37 29 |tion to TAB(5,7)| 00000230 2e 20 20 54 68 65 20 75 6e 64 65 72 6c 69 6e 65 |. The underline| 00000240 73 1a 20 28 31 36 35 30 29 20 61 72 65 20 74 68 |s. (1650) are th| 00000250 65 6e 20 70 72 69 6e 74 65 64 20 77 69 74 68 20 |en printed with | 00000260 74 68 65 20 64 68 0d 72 6f 75 74 69 6e 65 2e 0d |the dh.routine..| 00000270 0d 64 61 74 33 20 63 6f 64 65 73 20 28 31 36 36 |.dat3 codes (166| 00000280 30 2d 31 37 35 30 29 20 70 72 69 6e 74 20 74 68 |0-1750) print th| 00000290 65 1a 20 6d 65 6e 75 1a 20 6f 70 74 69 6f 6e 73 |e. menu. options| 000002a0 1a 20 28 6c 69 6e 65 20 32 32 30 29 20 66 69 72 |. (line 220) fir| 000002b0 73 74 20 63 68 61 6e 67 69 6e 67 0d 74 68 65 20 |st changing.the | 000002c0 63 6f 6c 6f 75 72 20 74 6f 20 67 72 65 65 6e 20 |colour to green | 000002d0 74 68 65 6e 20 74 6f 20 79 65 6c 6c 6f 77 20 66 |then to yellow f| 000002e0 6f 72 20 74 68 65 20 6c 6f 77 65 72 20 75 6e 64 |or the lower und| 000002f0 65 72 6c 69 6e 65 73 2e 0d 0d 4c 69 6e 65 20 32 |erlines...Line 2| 00000300 33 30 20 72 65 74 75 72 6e 73 20 74 68 65 20 70 |30 returns the p| 00000310 72 69 6e 74 20 63 6f 6c 6f 75 72 20 74 6f 20 67 |rint colour to g| 00000320 72 65 65 6e 0d 0d 54 68 65 20 76 61 6c 75 65 20 |reen..The value | 00000330 6f 66 20 73 70 64 20 69 73 20 73 65 74 20 61 74 |of spd is set at| 00000340 20 6c 69 6e 65 20 32 34 30 20 74 6f 20 67 69 76 | line 240 to giv| 00000350 65 20 74 68 65 20 6d 69 64 64 6c 65 20 73 70 65 |e the middle spe| 00000360 65 64 2e 0d 0d 54 68 65 20 72 6f 75 74 69 6e 65 |ed...The routine| 00000370 20 63 68 6f 6f 73 65 20 69 73 20 74 68 65 6e 20 | choose is then | 00000380 63 61 6c 6c 65 64 20 28 32 35 30 29 2e 0d 0d 3f |called (250)...?| 00000390 26 33 35 38 1a 20 69 73 1a 20 6c 6f 61 64 65 64 |&358. is. loaded| 000003a0 1a 20 77 69 74 68 1a 20 39 30 20 61 6e 64 20 74 |. with. 90 and t| 000003b0 68 65 20 73 63 72 65 65 6e 20 63 6c 65 61 72 65 |he screen cleare| 000003c0 64 2e 20 20 54 68 69 73 20 67 69 76 65 73 20 74 |d. This gives t| 000003d0 68 65 20 6f 72 61 6e 67 65 0d 73 63 72 65 65 6e |he orange.screen| 000003e0 2e 20 20 3f 26 33 35 38 20 69 73 20 74 68 65 6e |. ?&358 is then| 000003f0 20 72 65 74 75 72 6e 65 64 20 74 6f 20 7a 72 65 | returned to zre| 00000400 6f 20 61 73 20 6e 6f 72 6d 61 6c 20 28 32 36 30 |o as normal (260| 00000410 29 0d 0d 64 61 74 32 20 63 6f 64 65 73 20 28 31 |)..dat2 codes (1| 00000420 37 36 30 2d 31 38 31 30 29 20 61 72 65 20 73 65 |760-1810) are se| 00000430 74 1a 20 61 74 20 6c 69 6e 65 20 32 37 30 2e 20 |t. at line 270. | 00000440 20 54 68 65 20 74 68 72 65 65 20 77 69 6e 64 6f | The three windo| 00000450 77 73 20 61 72 65 20 73 65 74 20 75 70 0d 61 6e |ws are set up.an| 00000460 64 20 70 72 69 6e 74 69 6e 67 20 6e 65 65 64 65 |d printing neede| 00000470 64 0d 0d 64 65 6c 6c 20 69 73 20 63 61 6c 6c 65 |d..dell is calle| 00000480 64 20 74 68 72 65 65 20 74 69 6d 65 73 20 28 32 |d three times (2| 00000490 39 30 29 20 74 6f 20 67 69 76 65 20 61 20 70 61 |90) to give a pa| 000004a0 75 73 65 20 62 65 74 77 65 65 6e 20 6c 65 76 65 |use between leve| 000004b0 6c 73 0d 0d 54 68 65 20 6c 6f 61 64 20 72 6f 75 |ls..The load rou| 000004c0 74 69 6e 65 20 69 73 20 63 61 6c 6c 65 64 20 28 |tine is called (| 000004d0 33 30 30 29 1a 20 74 6f 1a 20 73 65 74 1a 20 75 |300). to. set. u| 000004e0 70 1a 20 74 68 65 1a 20 64 61 74 61 1a 20 66 6f |p. the. data. fo| 000004f0 72 20 74 68 65 20 6c 65 76 65 6c 20 61 73 0d 65 |r the level as.e| 00000500 78 70 6c 61 69 6e 65 64 2e 0d 0d 54 68 65 20 74 |xplained...The t| 00000510 75 6e 65 20 69 73 20 74 75 72 6e 65 64 20 6f 66 |une is turned of| 00000520 66 20 61 74 20 6c 69 6e 65 20 33 31 30 0d 0d 4c |f at line 310..L| 00000530 69 6e 65 20 33 32 30 20 63 61 6c 6c 73 20 63 61 |ine 320 calls ca| 00000540 6c 63 20 74 6f 20 63 61 6c 63 75 6c 61 74 65 20 |lc to calculate | 00000550 44 25 20 66 72 6f 6d 20 4d 58 25 20 61 6e 64 20 |D% from MX% and | 00000560 4d 59 25 20 66 6f 72 1a 20 73 65 74 74 69 6e 67 |MY% for. setting| 00000570 1a 20 75 70 1a 20 74 68 65 0d 64 69 73 70 6c 61 |. up. the.displa| 00000580 79 2e 20 20 54 68 65 73 65 20 61 72 65 20 73 61 |y. These are sa| 00000590 76 65 64 20 61 73 20 73 44 25 2c 20 73 6d 78 25 |ved as sD%, smx%| 000005a0 20 61 6e 64 20 73 6d 79 25 20 66 6f 72 20 72 65 | and smy% for re| 000005b0 74 75 72 6e 69 6e 67 20 74 6f 20 74 68 65 20 73 |turning to the s| 000005c0 74 61 72 74 0d 70 6f 73 69 74 69 6f 6e 20 61 66 |tart.position af| 000005d0 74 65 72 20 6c 6f 73 69 6e 67 20 61 20 6c 69 66 |ter losing a lif| 000005e0 65 2e 0d 0d 4c 69 6e 65 73 1a 20 33 34 30 1a 20 |e...Lines. 340. | 000005f0 74 6f 1a 20 33 39 30 20 61 72 65 20 74 68 65 20 |to. 390 are the | 00000600 6d 61 69 6e 20 67 61 6d 65 20 6c 6f 6f 70 2e 20 |main game loop. | 00000610 20 41 73 20 74 68 69 73 20 69 6e 76 6f 6c 76 65 | As this involve| 00000620 73 20 74 68 65 20 6f 72 69 67 69 6e 61 6c 0d 63 |s the original.c| 00000630 6f 64 69 6e 67 2c 20 49 20 63 61 6e 6e 6f 74 20 |oding, I cannot | 00000640 65 78 70 6c 61 69 6e 20 74 68 69 73 20 66 75 6c |explain this ful| 00000650 6c 79 2e 0d 0d 54 68 65 20 73 70 65 65 64 20 64 |ly...The speed d| 00000660 65 6c 61 79 20 69 73 20 63 61 6c 6c 65 64 20 61 |elay is called a| 00000670 74 20 6c 69 6e 65 20 33 36 30 2e 0d 0d 54 68 65 |t line 360...The| 00000680 20 72 65 6d 61 69 6e 69 6e 67 20 74 6f 74 61 6c | remaining total| 00000690 73 20 61 72 65 20 70 72 69 6e 74 65 64 20 61 74 |s are printed at| 000006a0 20 6c 69 6e 65 20 33 37 30 2e 0d 0d 49 6e 20 6c | line 370...In l| 000006b0 69 6e 65 20 33 38 30 20 2d 0d 20 20 20 20 49 66 |ine 380 -. If| 000006c0 20 6b 74 25 3d 32 35 35 2c 20 6b 65 79 20 6e 6f | kt%=255, key no| 000006d0 74 20 63 6f 6c 6c 65 63 74 65 64 2c 20 72 6f 75 |t collected, rou| 000006e0 74 69 6e 65 20 6b 69 20 69 73 20 63 61 6c 6c 65 |tine ki is calle| 000006f0 64 20 69 66 20 63 6e 25 3d 30 0d 20 20 20 20 20 |d if cn%=0. | 00000700 20 20 63 6e 25 20 69 73 20 69 6e 63 72 65 61 73 | cn% is increas| 00000710 65 64 20 65 61 63 68 20 74 69 6d 65 20 74 6f 20 |ed each time to | 00000720 70 72 6f 76 69 64 65 20 61 20 64 65 6c 61 79 20 |provide a delay | 00000730 66 6f 72 20 74 68 65 20 66 6c 61 73 68 69 6e 67 |for the flashing| 00000740 20 6b 65 79 0d 20 20 20 20 49 66 20 6b 74 25 3d | key. If kt%=| 00000750 30 20 77 68 65 6e 20 74 68 65 20 6b 65 79 1a 20 |0 when the key. | 00000760 69 73 20 63 6f 6c 6c 65 63 74 65 64 20 74 68 65 |is collected the| 00000770 20 70 72 6f 67 72 61 6d 20 62 72 61 6e 63 68 65 | program branche| 00000780 73 20 74 6f 20 66 69 6e 20 61 74 20 74 68 65 0d |s to fin at the.| 00000790 20 20 20 20 20 20 20 65 6e 64 20 6f 66 20 74 68 | end of th| 000007a0 65 20 6c 69 6e 65 20 61 6e 64 20 6b 69 20 69 73 |e line and ki is| 000007b0 20 6e 6f 74 20 63 61 6c 6c 65 64 2e 0d 0d 63 68 | not called...ch| 000007c0 6b 31 20 69 73 20 63 61 6c 6c 65 64 20 61 74 20 |k1 is called at | 000007d0 6c 69 6e 65 20 34 39 30 0d 20 20 20 20 49 66 20 |line 490. If | 000007e0 6c 76 65 6e 64 2c 20 6c 65 76 65 6c 20 63 6f 6d |lvend, level com| 000007f0 70 6c 65 74 65 64 2c 20 62 72 61 6e 63 68 20 74 |pleted, branch t| 00000800 6f 20 6e 65 78 6c 65 76 0d 20 20 20 20 49 66 20 |o nexlev. If | 00000810 64 65 61 64 6d 61 6e 2c 20 6c 6f 73 65 20 61 20 |deadman, lose a | 00000820 6c 69 66 65 2c 20 62 72 61 6e 63 68 20 74 6f 20 |life, branch to | 00000830 6c 6f 73 65 20 61 6e 64 20 72 65 73 65 74 20 64 |lose and reset d| 00000840 69 73 70 6c 61 79 20 74 6f 20 73 74 61 72 74 0d |isplay to start.| 00000850 20 20 20 20 70 6f 73 69 74 69 6f 6e 20 65 6c 73 | position els| 00000860 65 20 6d 6f 76 65 0d 20 20 20 20 54 68 65 6e 20 |e move. Then | 00000870 69 66 20 6c 69 25 3d 30 20 62 72 61 6e 63 68 20 |if li%=0 branch | 00000880 74 6f 20 65 6e 64 67 61 6d 65 20 65 6c 73 65 20 |to endgame else | 00000890 74 6f 20 67 61 6d 65 31 20 74 6f 20 63 6f 6e 74 |to game1 to cont| 000008a0 69 6e 75 65 0d 0d 6e 65 78 6c 65 76 20 28 34 30 |inue..nexlev (40| 000008b0 30 29 20 72 65 73 65 74 73 20 74 68 65 20 76 61 |0) resets the va| 000008c0 72 69 61 62 6c 65 73 20 74 6f 20 7a 65 72 6f 20 |riables to zero | 000008d0 61 6e 64 20 63 6c 65 61 72 73 1a 20 74 68 65 1a |and clears. the.| 000008e0 20 64 69 73 70 6c 61 79 20 61 72 65 61 20 62 79 | display area by| 000008f0 0d 70 72 69 6e 74 69 6e 67 20 73 70 61 63 65 73 |.printing spaces| 00000900 20 28 64 61 74 61 20 61 74 20 26 35 37 30 30 29 | (data at &5700)| 00000910 20 61 6e 64 20 72 65 74 75 72 6e 73 20 74 6f 20 | and returns to | 00000920 73 74 31 20 74 6f 20 63 6f 6e 74 69 6e 75 65 20 |st1 to continue | 00000930 74 68 65 20 67 61 6d 65 2e 0d 0d 65 6e 64 67 61 |the game...endga| 00000940 6d 65 20 28 34 30 30 2d 34 37 30 29 0d 20 20 20 |me (400-470). | 00000950 20 6c 69 6e 65 20 34 32 30 20 72 65 73 65 74 73 | line 420 resets| 00000960 20 6c 69 25 20 61 6e 64 20 63 6c 65 61 72 73 20 | li% and clears | 00000970 74 68 65 20 64 69 73 70 6c 61 79 20 61 73 20 61 |the display as a| 00000980 62 6f 76 65 0d 20 20 20 20 65 6e 64 61 74 20 28 |bove. endat (| 00000990 31 39 36 30 2c 31 39 37 30 29 20 6d 65 73 73 61 |1960,1970) messa| 000009a0 67 65 20 69 73 20 67 69 76 65 6e 20 61 74 20 6c |ge is given at l| 000009b0 69 6e 65 20 34 33 30 0d 20 20 20 20 54 68 65 20 |ine 430. The | 000009c0 74 75 6e 65 20 69 73 20 73 74 61 72 74 65 64 20 |tune is started | 000009d0 61 74 20 6c 69 6e 65 20 34 34 30 0d 20 20 20 20 |at line 440. | 000009e0 4c 69 6e 65 20 34 35 30 20 77 61 69 74 73 20 66 |Line 450 waits f| 000009f0 6f 72 20 73 70 61 63 65 20 74 6f 20 62 65 20 70 |or space to be p| 00000a00 72 65 73 73 65 64 20 62 79 20 72 6f 75 74 69 6e |ressed by routin| 00000a10 65 20 72 65 70 0d 20 20 20 20 54 68 65 20 74 75 |e rep. The tu| 00000a20 6e 65 20 69 73 20 73 74 6f 70 70 65 64 20 61 6e |ne is stopped an| 00000a30 64 20 6b 65 79 62 6f 61 72 64 20 62 75 66 66 65 |d keyboard buffe| 00000a40 72 20 63 6c 65 61 72 65 64 20 61 74 20 6c 69 6e |r cleared at lin| 00000a50 65 20 34 36 30 0d 20 20 20 20 54 68 65 6e 20 74 |e 460. Then t| 00000a60 68 65 20 70 72 6f 67 72 61 6d 20 72 65 74 75 72 |he program retur| 00000a70 6e 73 20 74 6f 20 73 74 31 20 74 6f 20 72 65 73 |ns to st1 to res| 00000a80 74 61 72 74 20 74 68 65 20 67 61 6d 65 0d 0d 49 |tart the game..I| 00000a90 20 68 6f 70 65 20 74 68 61 74 20 49 20 68 61 76 | hope that I hav| 00000aa0 65 20 67 69 76 65 6e 20 61 20 72 65 61 73 6f 6e |e given a reason| 00000ab0 61 62 6c 65 20 64 65 73 63 72 69 70 74 69 6f 6e |able description| 00000ac0 20 6f 66 20 74 68 65 20 63 6f 64 69 6e 67 2e 20 | of the coding. | 00000ad0 20 49 66 20 74 68 65 72 65 0d 69 73 20 61 6e 79 | If there.is any| 00000ae0 20 6d 6f 72 65 20 49 20 63 61 6e 20 61 64 64 2c | more I can add,| 00000af0 20 49 20 77 69 6c 6c 20 64 6f 20 73 6f 20 6e 65 | I will do so ne| 00000b00 78 74 1a 20 74 69 6d 65 2e 1a 20 20 41 6c 73 6f |xt. time.. Also| 00000b10 1a 20 49 20 68 6f 70 65 20 74 6f 20 68 61 76 65 |. I hope to have| 00000b20 20 74 68 65 0d 73 74 61 72 74 20 6f 66 20 61 20 | the.start of a | 00000b30 6c 69 74 74 6c 65 20 61 64 76 65 6e 74 75 72 65 |little adventure| 00000b40 1a 20 67 61 6d 65 1a 20 77 72 69 74 74 65 6e 1a |. game. written.| 00000b50 20 69 6e 1a 20 4d 2f 63 6f 64 65 1a 20 77 68 69 | in. M/code. whi| 00000b60 63 68 1a 20 49 1a 20 68 6f 70 65 1a 20 74 6f 0d |ch. I. hope. to.| 00000b70 65 78 70 6c 61 69 6e 2e 0d |explain..| 00000b79