Difference between revisions of "Pl3 EX ASS 2.S"
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| − | + | *** ILLUSTRATION DES OPERATIONS SUR LA RAM VIDEO ET L'ECRAN LOGIQUE *** | |
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| − | + | move.l a7,a5 ;Initialise le TOS | |
| + | lea pile,a7 | ||
| + | move.l 4(a5),a5 | ||
| + | move.l $c(a5),d0 | ||
| + | add.l $14(a5),d0 | ||
| + | add.l $1c(a5),d0 | ||
| + | add.l #$100,d0 | ||
| + | move.l d0,-(sp) | ||
| + | move.l a5,-(sp) | ||
| + | move #0,-(sp) | ||
| + | move #$4a,-(sp) ;SETBLOCK | ||
| + | trap #1 | ||
| + | add.l #12,sp | ||
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| + | clr.l -(sp) ;super | ||
move #$20,-(sp) | move #$20,-(sp) | ||
trap #1 | trap #1 | ||
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move.l d0,ssp | move.l d0,ssp | ||
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| − | + | * ECRIRE sur PHYS puis LOG et poser LOG sur PHYS * | |
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| − | move.w # | + | move.l #INTRO,-(sp) ;Texte sur PHYS |
| − | trap # | + | move.w #$09,-(sp) |
| + | trap #1 | ||
| + | addq.l #6,sp | ||
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| + | move #7,-(sp) ;TOUCHE | ||
| + | trap #1 | ||
addq.l #2,sp | addq.l #2,sp | ||
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| − | + | move.l #ecran+256,d0 ;adresse LOG | |
| + | and.l #$ffffff00,d0 ;divisible par 256 | ||
| + | move.l d0,a0 ;a0=LOG | ||
| + | move.l $44e,a5 ;a5=PHYS | ||
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| − | + | *** On ecrit sur le PHYS *** | |
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| − | move.l # | + | |
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| + | move.l #7999,d0 ;Write of PHYS | ||
| + | moveq.l #-1,d1 | ||
| + | move.l a5,a6 | ||
| + | cr: | ||
| + | move.l d1,(a6)+ | ||
| + | dbf d0,cr | ||
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| + | move.l #TEXTE,-(sp) ;Texte sur PHYS | ||
| + | move.w #$09,-(sp) | ||
| + | trap #1 | ||
| + | addq.l #6,sp | ||
| − | move | + | move #7,-(sp) ;TOUCHE |
| − | + | trap #1 | |
| − | + | addq.l #2,sp | |
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| − | + | *** On ecrit sur le LOG *** | |
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| − | + | move.l #7999,d0 ;Write of LOG | |
| − | + | moveq.l #-1,d1 | |
| − | + | move.l a0,a6 | |
| − | + | acr: | |
| − | + | move.l d1,(a6)+ | |
| − | + | dbf d0,acr | |
| − | + | move.l a0,d5 ;a0= LOG | |
| + | lsr.l #8,d5 ;MMU --> PHYS devient LOG | ||
| + | move.b d5,$ff8203 ;on travaille sur LOG | ||
| + | lsr.l #8,d5 ;(On change le PHYS sous LOG) | ||
| + | move.b d5,$ff8201 ;¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹ | ||
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| − | move # | + | move #7,-(sp) ;TOUCHE |
| − | + | trap #1 | |
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addq.l #2,sp | addq.l #2,sp | ||
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| − | + | *** On pose LOG sur PHYS *** | |
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| + | move.l a5,d5 ;a5= PHYS | ||
| + | lsr.l #8,d5 ;MMU --> LOG devient PHYS | ||
| + | move.b d5,$ff8203 ;on d‚pose le LOG sur PHYS | ||
| + | lsr.l #8,d5 ;(le PHYS chang‚ revient) | ||
| + | move.b d5,$ff8201 ;¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹ | ||
| − | + | move #7,-(sp) ;TOUCHE | |
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| − | move # | ||
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trap #1 | trap #1 | ||
addq.l #2,sp | addq.l #2,sp | ||
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| − | move.l ssp,-(sp) | + | move.l ssp,-(sp) ;USER |
move #$20,-(sp) | move #$20,-(sp) | ||
trap #1 | trap #1 | ||
addq.l #6,sp | addq.l #6,sp | ||
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| − | clr. | + | clr.w -(sp) ;PTERM |
trap #1 | trap #1 | ||
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| − | + | SECTION DATA | |
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| − | + | TEXTE DC.B 27,'Y',32,32,' TEXTE ‚crit sur l',39,'‚cran LOGIQUE et pos‚ sur',10,13 | |
| − | + | DC.B ' l',39,'‚cran PHYSIQUE ... blablabla :',10,13 | |
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| − | + | REPT 22 | |
| + | DC.B 'textetextetextetextetextetextetextetextetexte',10,13 | ||
| + | ENDR | ||
| − | + | DC.B 0 | |
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| − | + | INTRO DC.B 27,'E','Compare l',39,'affichage normal avec celui' | |
| − | + | DC.B ' LOG sur PHYS (L-P, 1/89)',0 | |
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| + | SECTION BSS | ||
| − | + | ds.b 500 ;USP | |
| + | pile ds.b 1 | ||
| − | + | ecran ds.b 32256 ;LOG SCREEN (1*32000+256) | |
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| − | + | ssp ds.l 1 | |
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END | END | ||
| − | + | </pre> | |
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Back to [[ASM_Tutorial]] | Back to [[ASM_Tutorial]] | ||
Revision as of 17:29, 9 October 2006
*** ILLUSTRATION DES OPERATIONS SUR LA RAM VIDEO ET L'ECRAN LOGIQUE ***
move.l a7,a5 ;Initialise le TOS
lea pile,a7
move.l 4(a5),a5
move.l $c(a5),d0
add.l $14(a5),d0
add.l $1c(a5),d0
add.l #$100,d0
move.l d0,-(sp)
move.l a5,-(sp)
move #0,-(sp)
move #$4a,-(sp) ;SETBLOCK
trap #1
add.l #12,sp
clr.l -(sp) ;super
move #$20,-(sp)
trap #1
addq.l #6,sp
move.l d0,ssp
* ECRIRE sur PHYS puis LOG et poser LOG sur PHYS *
move.l #INTRO,-(sp) ;Texte sur PHYS
move.w #$09,-(sp)
trap #1
addq.l #6,sp
move #7,-(sp) ;TOUCHE
trap #1
addq.l #2,sp
move.l #ecran+256,d0 ;adresse LOG
and.l #$ffffff00,d0 ;divisible par 256
move.l d0,a0 ;a0=LOG
move.l $44e,a5 ;a5=PHYS
*** On ecrit sur le PHYS ***
move.l #7999,d0 ;Write of PHYS
moveq.l #-1,d1
move.l a5,a6
cr:
move.l d1,(a6)+
dbf d0,cr
move.l #TEXTE,-(sp) ;Texte sur PHYS
move.w #$09,-(sp)
trap #1
addq.l #6,sp
move #7,-(sp) ;TOUCHE
trap #1
addq.l #2,sp
*** On ecrit sur le LOG ***
move.l #7999,d0 ;Write of LOG
moveq.l #-1,d1
move.l a0,a6
acr:
move.l d1,(a6)+
dbf d0,acr
move.l a0,d5 ;a0= LOG
lsr.l #8,d5 ;MMU --> PHYS devient LOG
move.b d5,$ff8203 ;on travaille sur LOG
lsr.l #8,d5 ;(On change le PHYS sous LOG)
move.b d5,$ff8201 ;¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹
move #7,-(sp) ;TOUCHE
trap #1
addq.l #2,sp
*** On pose LOG sur PHYS ***
move.l a5,d5 ;a5= PHYS
lsr.l #8,d5 ;MMU --> LOG devient PHYS
move.b d5,$ff8203 ;on d‚pose le LOG sur PHYS
lsr.l #8,d5 ;(le PHYS chang‚ revient)
move.b d5,$ff8201 ;¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹¹
move #7,-(sp) ;TOUCHE
trap #1
addq.l #2,sp
move.l ssp,-(sp) ;USER
move #$20,-(sp)
trap #1
addq.l #6,sp
clr.w -(sp) ;PTERM
trap #1
SECTION DATA
TEXTE DC.B 27,'Y',32,32,' TEXTE ‚crit sur l',39,'‚cran LOGIQUE et pos‚ sur',10,13
DC.B ' l',39,'‚cran PHYSIQUE ... blablabla :',10,13
REPT 22
DC.B 'textetextetextetextetextetextetextetextetexte',10,13
ENDR
DC.B 0
INTRO DC.B 27,'E','Compare l',39,'affichage normal avec celui'
DC.B ' LOG sur PHYS (L-P, 1/89)',0
SECTION BSS
ds.b 500 ;USP
pile ds.b 1
ecran ds.b 32256 ;LOG SCREEN (1*32000+256)
ssp ds.l 1
END
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