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05-08-24 10:37 PM |
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| 0 users currently in SMW Hacking | 1 guest | 1 bot |
| Main - SMW Hacking - Problems with block | New thread | New reply |
| Buu-Huu |
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Level: 26 Posts: 40/113 EXP: 93303 Next: 8972 Since: 11-01-07 Last post: 5423 days Last view: 5349 days |
I have a problem with this block:
LDA $7E0019 CMP #$01 BNE LDA #$03 STA $7E0019 RTS It should make you Fire mario if you are just big Mario but it makes you Fire Mario if you're small Mario too. I hope somebody can help me with this code. |
| GreyMaria |
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>implying even the Japanese understand the Japanese Level: 105 Posts: 850/2851 EXP: 11932941 Next: 329319 Since: 07-13-07 Last post: 4510 days Last view: 4479 days |
Don't you like, have to specify a branch-ahead in bytes for a BNE? ____________________ we're currently experiencing some technical difficulties |
| Buu-Huu |
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Level: 26 Posts: 41/113 EXP: 93303 Next: 8972 Since: 11-01-07 Last post: 5423 days Last view: 5349 days |
I don't think so, wait, here is the part of the tutorial I got it from:
LDA $7E0019 ;At compare you must always load the ram address first, the indirect value. CMP #$01 ; Big Mario BNE Return ;If you are NOT big Mario, the opcode will finish by branching to the label Retur LDA #$xx ;Do stuff here when big Mario STA $xxxxxx ;Do stuff here when big Mario *Insert more stuff* Return: RTS See? I copied the whole code and changed it at the second LDA to have the effect I want but somehow it don't works. |
| GreyMaria |
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>implying even the Japanese understand the Japanese Level: 105 Posts: 851/2851 EXP: 11932941 Next: 329319 Since: 07-13-07 Last post: 4510 days Last view: 4479 days |
The code you pasted does not BNE to Return, nor is there a Return label. ____________________ we're currently experiencing some technical difficulties |
| Buu-Huu |
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Level: 26 Posts: 42/113 EXP: 93303 Next: 8972 Since: 11-01-07 Last post: 5423 days Last view: 5349 days |
So what should I do? Sorry if I'm sounding like a newbie but I'm a newbie.  I just started learning ASM today and I don't understand what you mean. Can you paste the correct code? |
| GreyMaria |
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>implying even the Japanese understand the Japanese Level: 105 Posts: 852/2851 EXP: 11932941 Next: 329319 Since: 07-13-07 Last post: 4510 days Last view: 4479 days |
I'm a bit rusty with my ASM knowledge, lemme go pull up the help file for ASM.
edit: Here's the ASM code, and then the raw hex for it. LDA $7E0019 CMP #$01 BNE Return LDA #$03 STA $7E0019 Return: RTS and according to 65c816ref.hlp, this is the raw hex: AF 19 00 7E C9 01 D0 06 A9 03 8F 19 00 7E 60 If the raw hex doesn't work, try changing D0 06 to D0 05. I still don't quite remember how branches work. ____________________ we're currently experiencing some technical difficulties |
| Buu-Huu |
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Level: 26 Posts: 43/113 EXP: 93303 Next: 8972 Since: 11-01-07 Last post: 5423 days Last view: 5349 days |
OK, thanks. |
| boingboingsplat |
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 Giant Koopa [PREFSTRING:wonderful bounciness] Level: 74 Posts: 154/1292 EXP: 3637422 Next: 16122 Since: 07-23-07 From: Michicola Last post: 4854 days Last view: 4817 days |
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| Smallhacker |
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 Panser Swedish weirdo times eleven Level: 42 Posts: 303/339 EXP: 494967 Next: 26395 Since: 02-19-07 From: Stockholm, Sweden Last post: 5197 days Last view: 5196 days |
Posted by boingboingsplat Because compilers translates high-level languages (such as C) into machine code, while assemblers translates ASM into machine code? ____________________   |
| pieguy1732 |
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 Ptooie Note: I wasn't here because I wasn't here, not because someone switched the 7 and the 3. Level: 84 Posts: 267/1711 EXP: 5468276 Next: 193676 Since: 01-04-08 Last post: 5029 days Last view: 4959 days |
If what is up there doesn't work, try taking the 7E off of all the numbers. I've had problems with CMP before when using long addresses. :O ____________________ "There are 3 types of people in this world: Those who can count and those who can't."  |
| Buu-Huu |
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Level: 26 Posts: 44/113 EXP: 93303 Next: 8972 Since: 11-01-07 Last post: 5423 days Last view: 5349 days |
Cool, it worked now, thank you all guys. I didn't knew that I have to insert "Return" in the ASM file too, I thought, in the tutorial it says, I should press return. ^^ Thanks again. |
| Main - SMW Hacking - Problems with block | New thread | New reply |
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