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lan64+
Account closed
Registered: Mar 2007
Posts: 10 |
C64 Assembly Tutorial
Hi
Which the best tutorial for learn Assembly language???
And I want to make a multipart demo with some screens,sinus and rasters,but I have a little problem....
1 - I have a "Delta screen with rasters + some chars,etc"...but I need a routine for "Space Key and Load the Next part"
Please,help me!
Thanx |
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A3
Registered: Dec 2005
Posts: 362 |
For some help read this topic:
Code, how to get started?
or:
The Best C64 Ml tutorial collection. |
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lan64+
Account closed
Registered: Mar 2007
Posts: 10 |
Violator
Thanks for your tips.
But help me with my "Demo Question"....send me some routine for my "Trackmo"
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yago
Registered: May 2002
Posts: 333 |
10 REM your demo
20 GET A$:IF A$<>" " THEN 20
30 LOAD "NEXTPART",8
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iAN CooG
Registered: May 2002
Posts: 3197 |
LOL |
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hollowman
Registered: Dec 2001
Posts: 474 |
Quote: Violator
Thanks for your tips.
But help me with my "Demo Question"....send me some routine for my "Trackmo"
download Loaders , assemble firqinit.seq and firqload.seq
and use the loader like this
demostart
sei
jsr firqinit
demopart
inc $d020
checkspace
lda $dc01
cmp #239
bne demopart
lda #$3b
sta $d011
lda #$18
sta $d018
lda #$00
sta $dc00
lda #$80
sta $d012
lda #<loaderpart
sta $0314
lda #>loaderpart
sta $0315
lda #$01
sta $d01a
lda #$7f
sta $dc0d
bit $dc0d
dec $d019
cli
ldx #"s" ;first character of filename
ldy #"h" ;second character of filename
lda #$00 ;load unpacked file by filename
jsr firqload
jmp nextdemopart
loaderpart
inc $d019
inc $d020
jmp $ea7e
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lan64+
Account closed
Registered: Mar 2007
Posts: 10 |
Hollowman
Please send me a "Commodore Monitor" version from this code.
Thankx |
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Nightlord
Account closed
Registered: Jan 2003
Posts: 131 |
@lan64: use a cross-assembler or if you are dying to code on c64 then substitute every name you see with a $cxxx address
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Scout
Registered: Dec 2002
Posts: 1570 |
Quote: @lan64: use a cross-assembler or if you are dying to code on c64 then substitute every name you see with a $cxxx address
Personally I think it's not smart to learn coding assembler in a cross-dev. environment.
First try it in a monitor (every popular cart has one and some emulators have spartan versions) to learn about memory-addresses, registers, carry-flag behaviour etc.
Just my 2 euro-cents. |
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lan64+
Account closed
Registered: Mar 2007
Posts: 10 |
Nightlord and Scout
I need a "little routine" for "load the nextpart",please help me.
I have build some simple intro using the "Demo Demon",but when I press space,nothing happens!!!!!
Then,I have found a simple routine for "Press Space",but I need anot
her
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Scout
Registered: Dec 2002
Posts: 1570 |
Quote: Nightlord and Scout
I need a "little routine" for "load the nextpart",please help me.
I have build some simple intro using the "Demo Demon",but when I press space,nothing happens!!!!!
Then,I have found a simple routine for "Press Space",but I need anot
her
A simple press space example (monitor example) and the same Hollowman gave you already:
.C:c000 AD 01 DC LDA $DC01
.C:c003 C9 EF CMP #$EF
.C:c005 D0 F9 BNE $C000
.C:c007 60 RTS
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