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Author Topic: Mistakes made in the ASM tutorials -  (Read 5831 times) Bookmark and Share
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ralphdspam
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« Reply #30 on: 07 March, 2011, 02:35:05 »
0
Quote from: Lesson 7 Page 11
T-States: Byte Storage:
JR—12 if condition is true 2 Bytes
7 if condition is true 2 Bytes
JP – 10 no matter what
Which is it 12 or 7 if the condition is true?
Which one is it if it is false?
« Last Edit: 21 March, 2011, 05:19:01 by ralphdspam » Logged
ld a, 0
ld a, a
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« Reply #31 on: 07 March, 2011, 05:01:55 »
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Oops: 7 T-States if condition is false
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« Reply #32 on: 09 March, 2011, 05:25:54 »
+1
Quote from: Lesson 8 Page 13
#include “ti83plus.inc”
.org 40339
.db t2ByteTok, tAsmCmp
B_CALL _ClrLCDFull
ld a, 1
cp 1 ; If A = 1
jr z, DisplayNumber1 ; A – 1 = 0. So, if A = 1, CP 1 will
; give A – 1 = 1 – 1 = 0, therefore the
; zero (Z) flag will be set
cp 2
ret z ; If A = 2, end the program
DisplayNumber1:
ld h, 0
ld l, a ; Remember that CP does not affect A. A still equals 1.
B_CALL _DispHL
B_CALL _getKey
B_CALL _ClrCLDFull
ret
I think should be B_CALL _ClrLCDFull
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« Reply #33 on: 09 March, 2011, 05:37:20 »
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Yeah, you're right, and that one's weird because I usually test my programs
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« Reply #34 on: 09 March, 2011, 05:54:24 »
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Quote from: Lesson 8 Page 14
cp 27 ; If A = 1
I don't think it is the equivalent of "If A = 1".
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« Reply #35 on: 09 March, 2011, 06:51:30 »
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Nope, it's not.  Keep em coming!
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« Reply #36 on: 12 March, 2011, 07:25:08 »
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Quote from: Lesson 8 Page 14
Load_Player_Data:
ld b, (hl) ; In a perfect world, h contains the ram address to load from
inc h
ld c, (hl)
inc hl
ld d, (hl)
inc hl
ld e, (hl)
inc hl
ld a, (hl)
ret
Did you mean "inc hl"?

This too:
Quote from: Lesson 8 Page 16
Text:
.db “Hello World”, “This is my string,” 224, 65, 67, 67, 65, etc.

This one is really knit picky. Tongue
« Last Edit: 21 March, 2011, 05:22:22 by ralphdspam » Logged
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« Reply #37 on: 12 March, 2011, 07:38:24 »
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I don't know what is wrong with the second one, but definitely inc hl instead of inc h.
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There are people who can speak two languages, and they are called bilingual.  There are people who speak three languages and are therefore trilingual.  Then there are people who speak one language, and these people are called Americans.
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« Reply #38 on: 12 March, 2011, 07:41:29 »
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For the second one, I thought it should be
.db "Hello World", "This is my string", 224, 65, 67, 67, 65, etc.

In the lesson, it was:
Quote
.db "Hello World", "This is my string," 224, 65, 67, 67, 65, etc.

I don't know. I am supposed to be the one learning. Tongue
« Last Edit: 12 March, 2011, 07:42:24 by ralphdspam » Logged
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« Reply #39 on: 12 March, 2011, 07:52:46 »
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Oh, well you're correct there, the comma should be outside
« Last Edit: 12 March, 2011, 07:53:00 by Hot_Dog » Logged
There are people who can speak two languages, and they are called bilingual.  There are people who speak three languages and are therefore trilingual.  Then there are people who speak one language, and these people are called Americans.
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« Reply #40 on: 12 March, 2011, 08:04:35 »
+2
Sorry for the double post, but I've got to say this: thanks for catching the errors, ralphdspam, I like it for two reasons:

1. Readers will not have so many errors
2. It shows that you are understanding asm from reading these tutorials, which is what I was aiming for
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There are people who can speak two languages, and they are called bilingual.  There are people who speak three languages and are therefore trilingual.  Then there are people who speak one language, and these people are called Americans.
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« Reply #41 on: 16 March, 2011, 05:13:31 »
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Quote from: Lesson 11 Page 3
B_CALL _VPutSN
Displays a string specified by HL. The string does not end in a
zero. Instead, the number of characters to display is stored in
register B.
Examples: LD HL, String
LD B, 11
B_CALL PutS
String:
.db “Hello World”

Is that supposed to be B_CALL _VPutSN?
I am kind of confused. Huh?

EDIT: I could not find this command in the new tutorials.  Huh?
« Last Edit: 21 March, 2011, 05:26:56 by ralphdspam » Logged
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« Reply #42 on: 16 March, 2011, 06:00:30 »
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Quote from: ralphdspam on 16 March, 2011, 05:13:31
Quote from: Lesson 11 Page 3
B_CALL _VPutSN
Displays a string specified by HL. The string does not end in a
zero. Instead, the number of characters to display is stored in
register B.
Examples: LD HL, String
LD B, 11
B_CALL PutS
String:
.db “Hello World”

Is that supposed to be B_CALL _VPutSN?
I am kind of confused. Huh?

No need to be confused.  That is indeed another typo
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There are people who can speak two languages, and they are called bilingual.  There are people who speak three languages and are therefore trilingual.  Then there are people who speak one language, and these people are called Americans.
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« Reply #43 on: 16 March, 2011, 06:31:01 »
0
Also, I think:
Quote from: Lesson 11 Page 13
B_CALL _ClrLCDFull
     ld d, MainMenuItem1X ; Stores the X position for the menu
     ld e, MainMenuItem1Y ; Stores the starting Y position for the menu
should be:
Code: Select All | Copy To Clipboard

1
2
3
     B_CALL _ClrLCDFull
     ld d, MainMenuItem1X ; Stores the X position for the menu
     ld e, MainMenuItem1Y ; Stores the starting Y position for the menu

EDIT: This is not in the new tutorials. 
« Last Edit: 21 March, 2011, 05:27:59 by ralphdspam » Logged
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« Reply #44 on: 16 March, 2011, 06:33:55 »
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Oh, I missed that tab, didn't I  Frustrated
« Last Edit: 16 March, 2011, 06:34:17 by Hot_Dog » Logged
There are people who can speak two languages, and they are called bilingual.  There are people who speak three languages and are therefore trilingual.  Then there are people who speak one language, and these people are called Americans.
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