Керiвництво программиста, Детальна інформація

I\x00F0e oeeaaeaii\x00B3 i\x00F0ia\x00F0aie iiaeia nei\x00F0enooaaoeny aeo\x00B3aeiei oaenoii c iiia\x00F0aaeiuei? \x00F0iaioe.

I\x00D0EEEAAe AEEIIAIIss

Neeaaeaii i\x00F0ia\x00F0aio ui aeei\x00F0enoa\x00BA noi\x00F0\x00B3ieiaee iaoai\x00B3ci c \x00F0ici\x00B3\x00F0ii noi\x00F0\x00B3iee 4Ea. sseui aeei\x00F0enoaoe aeo\x00B3aeiee oaeno c iiia\x00F0aaeiuei? \x00F0iaioe, aeinoaoiuei i\x00F0iaieineoe a naaiaio\x00B3 aeaieo iaeanoue aeey eaoaeiao \x00B3 oaaeeoeue noi\x00F0\x00B3iie, aeiaeaoe a aieiaio i\x00F0ioeaaeo\x00F0o eiae aeey oi\x00F0ioaaiiy oeeo oaaeeoeue \x00B3 ci\x00B3ieoe aaciao aae\x00F0ano a\x00B3aeaiaooa\x00F0a.

Ai iaia\x00BA iaaeiae neeaaeaoe oaaeeoe\x00B3 aeey onueiai aae\x00F0aniiai i\x00F0inoi\x00F0o, iaiao\x00B3aeii ia/eneeoe i\x00B3i\x00B3iaeueio e\x00B3euee\x00B3noue oaaeeoeue noi\x00F0\x00B3iie aeey iie\x00F0eoo\x00B3 iaiao\x00B3aeiiai aae\x00F0aniiai i\x00F0inoi\x00F0o.

<\x00F0ici\x00B3\x00F0 noi\x00F0\x00B3iee>/4 < \x00F0ici\x00B3\x00F0 noi\x00F0\x00B3iee >=

4 [Kb]/4*4 [Kb] =4096 [Kb] =4 [Mb]

Iaeia noi\x00F0\x00B3iea iie\x00F0eaa\x00BA 4 Ia aae\x00F0aniiai i\x00F0inoi\x00F0o, a iai iaiao\x00B3aeii 1024Ea+4Ea=1028 Ea, ui cia/ii iaio icia/aiiai ianyao. Cia/eoue aeinoaoiuei caiiaieoe o\x00B3eueee iaeio oaaeeoeth noi\x00F0\x00B3iie. Eaoaeia \x00B3 oaaeeoey iiaeii\x00B3 aooe ae\x00F0\x00B3aiai\x00B3 ii iaae\x00B3 4 Ea, a naaiaio aoa-oaeeo iiaea aooe ae\x00F0\x00B3aiai o\x00B3eueee ii iaae\x00B3 ia\x00F0aa\x00F0aoo, oiio onueiai iaiao\x00B3aeii 3 noi\x00F0\x00B3iee ii 4 Ea.

; oaee “lab2. asm”

...

SEGMENT DATA USE32

pages dd 3*1024 dup (0) ; aooa\x00F0 aeey oaaeeoeue noi\x00F0\x00B3iie

... ; oaaeeoey GDT

video descr <80*25*2, 0.10 h, 4092h, 0> ; aae\x00F0ana naaiaioo 100000h

...

ENDS

SEGMENT CODE USE16

assume cs: code, ds: data

proc main

; caiiaiaiiy aeane\x00F0eioi\x00F0ia naaiaio\x00B3a

mov ebx, data ; ia/eneaiiy o\x00B3ce/iiai

shl ebx, 4 ; aae\x00F0ane eaoaeiao noi\x00F0\x00B3iie

add ebx, 1000h

and bx, 0f000h

mov cr3, ebx ; caaaioaaeaiiy aae\x00F0ane eaoaeiao a CR3

mov eax, ebx ; ia/eneaiiy ci\x00B3uaiiy

shr ebx, 4 ; eaoaeiao noi\x00F0\x00B3iie a

sub bx, data ; naaiaio\x00B3 aeaieo

shl bx, 4

add eax, 1007h ; ia/eneaiiy aae\x00F0ane 1-e oaaeeoe\x00B3

mov [bx], eax ; caaaioaaeaiiy a eaoaeia