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KermMartian
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Joined: 14 Mar 2005
Posts: 55762
Location: Earth, Sol, Milky Way
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 Posted: 11 Mar 2011 03:19:57 pm Post subject: |
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That looks to me as if it would work pretty well. Have you given it a try yet? Tthanks for the interjections, Lionel. 
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ephan
Super-Expert
Joined: 12 Nov 2010
Posts: 819
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| Posted: 11 Mar 2011 04:47:17 pm Post subject: |
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| ACagliano are you gonna make your tutorial on this? I think I read something on the IRC, is it true? I'm looking forward to it. |
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KermMartian
Site Admin
Joined: 14 Mar 2005
Posts: 55762
Location: Earth, Sol, Milky Way
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| Posted: 11 Mar 2011 04:47:45 pm Post subject: |
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| ScoutDavid wrote: | | ACagliano are you gonna make your tutorial on this? I think I read something on the IRC, is it true? I'm looking forward to it. |
Oooh, I hope he will! If he does, everyone wins, I think.
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ACagliano
Super-Expert
Joined: 08 Feb 2010
Posts: 925
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| Posted: 11 Mar 2011 04:51:14 pm Post subject: |
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I am starting a tutorial on game design using Axe, yes. It will delve into everything my TI-Basic version did, and then will address using CalcNET as a linking protocol.
@Kerm: Only one calculator, and no unit-to-units cables.
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Current Projects
Legend of Zelda. "Ganon's Rage"
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souvik1997
Guru-in-Training
Joined: 19 Apr 2010
Posts: 2870
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ephan
Super-Expert
Joined: 12 Nov 2010
Posts: 819
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| Posted: 11 Mar 2011 04:58:01 pm Post subject: |
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| ACagliano wrote: | I am starting a tutorial on game design using Axe, yes. It will delve into everything my TI-Basic version did, and then will address using CalcNET as a linking protocol.
@Kerm: Only one calculator, and no unit-to-units cables. |
Oh that's great |
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Progbeard
Member
Joined: 23 Feb 2011
Posts: 108
Location: 0x9D95
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| Posted: 11 Mar 2011 05:15:11 pm Post subject: |
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| KermMartian wrote: | | Does it store simultaneously? If there are even a few cycles between the high byte and the low byte, bad things can happen. |
Not read on z80 architecture, but I'm pretty sure there are no "free" cycles during the duration of any one instruction...unless you start talking about pipelining or hyperthreading... o.o
Were you worried the buffer might be read between storing the high and low bytes?
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KermMartian
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Joined: 14 Mar 2005
Posts: 55762
Location: Earth, Sol, Milky Way
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| Posted: 11 Mar 2011 05:24:30 pm Post subject: |
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| Progbeard wrote: | | KermMartian wrote: | | Does it store simultaneously? If there are even a few cycles between the high byte and the low byte, bad things can happen. |
Not read on z80 architecture, but I'm pretty sure there are no "free" cycles during the duration of any one instruction...unless you start talking about pipelining or hyperthreading... o.o
Were you worried the buffer might be read between storing the high and low bytes? |
Progbeard, in z80 asm, ld (imm_addr),hl operates in one instruction, so an interrupt cannot trigger in the middle of the two-byte load. However, this is Axe, a compiled language, and I am not sure how it renders a two-byte load in the high-level language into ASM. I considered it entirely possible that it might break it up into two separate one-byte load instructions.
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ACagliano
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Joined: 08 Feb 2010
Posts: 925
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| Posted: 11 Mar 2011 06:11:16 pm Post subject: |
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Perhaps you could poke Quigibo on that. That is a very worthy question.
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Deep Thought
Expert
Joined: 11 Mar 2010
Posts: 739
Location: The Universe
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| Posted: 11 Mar 2011 06:24:57 pm Post subject: |
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| KermMartian wrote: | | Progbeard wrote: | | KermMartian wrote: | | Does it store simultaneously? If there are even a few cycles between the high byte and the low byte, bad things can happen. |
Not read on z80 architecture, but I'm pretty sure there are no "free" cycles during the duration of any one instruction...unless you start talking about pipelining or hyperthreading... o.o
Were you worried the buffer might be read between storing the high and low bytes? |
Progbeard, in z80 asm, ld (imm_addr),hl operates in one instruction, so an interrupt cannot trigger in the middle of the two-byte load. However, this is Axe, a compiled language, and I am not sure how it renders a two-byte load in the high-level language into ASM. I considered it entirely possible that it might break it up into two separate one-byte load instructions. |
Axe usually uses
Code:
push HL
; get pointer into HL here
pop DE
ld (HL),E
inc HL
ld (HL),D
except when it's a constant location; in that case it uses
Code:
ld (ADDRESS),HL
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Progbeard
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Joined: 23 Feb 2011
Posts: 108
Location: 0x9D95
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| Posted: 11 Mar 2011 06:27:30 pm Post subject: |
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Oh, I see. I'm also not too familiar with Axe. If Axe has a word load instruction, I can't imagine it would compile into two two-byte loads. But if Axe has only byte load instructions, you might be right, and that wouldn't be very desirable.
Are there any good Axe tutorials on the web aside from just the Axe documentation?
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Deep Thought
Expert
Joined: 11 Mar 2010
Posts: 739
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KermMartian
Site Admin
Joined: 14 Mar 2005
Posts: 55762
Location: Earth, Sol, Milky Way
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| Posted: 12 Mar 2011 12:39:48 am Post subject: |
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Progbeard, so Deep Thought did indeed confirm my concern. Personally, I'd stick with ASM if you feel proficient enough in it, but I'm slightly biased. ACagliano, what were you saying earlier on SAX about having to move around memory?
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Compynerd255
Power User
Joined: 08 Apr 2011
Posts: 397
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| Posted: 13 Apr 2011 10:45:26 pm Post subject: |
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Hey, everybody! I have an *UNTESTED* CALCnet axiom for you guys! It's only the source, as I can't compile right now. Here it is:
Code:
.org $0000
.dw $C0DE
;Start Cn2.2
.dw $0003
.db %00010000
.db $63,$3C ;"CoordOn"
.db %00000000 ;replacement
.db 0
call 04206h
;Stop Cn2.2
.dw $0003
.db %00010000
.db $63,$3D ;"CoordOff"
.db %00000000 ;replacement
.db 0
call 04212h
;Send address pointer
.dw $0003
.db %00010000
.db $63,$0A ;"Xmin"
.db %00000000 ;replacement
.db 0
ld hl, 087FAh
;Send data pointer
.dw $0003
.db %00010000
.db $63,$0B ;"Xmax"
.db %00000000 ;replacement
.db 0
ld hl, 08801h
;Send size pointer
.dw $0003
.db %00010000
.db $63,$02 ;"Xscl"
.db %00000000 ;replacement
.db 0
ld hl, 087FFh
;Store Send Go
.dw $0003
.db %00010000
.db $63,$27 ;"Delta X"
.db %00010000 ;store command
.db 0
ld (08800h), hl
;Retreive Send Go
.dw $0003
.db %00010000
.db $63,$27 ;"Delta X"
.db %00000000 ;replacement
.db 0
ld hl, (08800h)
;Recieve address pointer
.dw $0003
.db %00010000
.db $63,$0C ;"Ymin"
.db %00000000 ;replacement
.db 0
ld hl, 086F3h
;Recieve data pointer
.dw $0003
.db %00010000
.db $63,$0D ;"Ymax"
.db %00000000 ;replacement
.db 0
ld hl, 086FAh
;Recieve size pointer
.dw $0003
.db %00010000
.db $63,$03 ;"Yscl"
.db %00000000 ;replacement
.db 0
ld hl, 086F8h
;Store Recieve Go
.dw $0003
.db %00010000
.db $63,$28 ;"Delta Y"
.db %00010000 ;store command
.db 0
ld (086F9h), hl
;Retreive Recieve Go
.dw $0003
.db %00010000
.db $63,$28 ;"Delta Y"
.db %00000000 ;replacement
.db 0
ld hl, (086F9h)
;End Axiom
.dw $0000
.end
Would someone please compile this for me? Thank you.[/code] |
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KermMartian
Site Admin
Joined: 14 Mar 2005
Posts: 55762
Location: Earth, Sol, Milky Way
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| Posted: 13 Apr 2011 10:46:16 pm Post subject: |
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Nifty! Once compiled, how would one go about using this?
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souvik1997
Guru-in-Training
Joined: 19 Apr 2010
Posts: 2870
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| Posted: 13 Apr 2011 10:49:22 pm Post subject: |
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I'll definitely test this out! Why do all of your memory addresses have a 0 in front of them?
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CALCnet Tournament-38%
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Compynerd255
Power User
Joined: 08 Apr 2011
Posts: 397
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| Posted: 13 Apr 2011 10:51:03 pm Post subject: |
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Here's how an Axiom works:
1. In Axe, place an #Axiom() token (where AsmComp should be in the Catalog) and put the compiled Axiom name in the argument.
2. Use these tokens in the program:
- CoordOn starts CALCnet, CoordOff stops CALCnet.
- Xmin, Xmax, and Xscl are pointers for the send buffer's target, data, and size, respectively.
- Ymin, Ymax, and Yscl are the same for the recieve buffer.
- Delta X and Delta Y are the second bytes of the size words. You can read them and write to them as you would in ASM (set and clear the high bit).
EDIT:
| souvik1997 wrote: | | I'll definitely test this out! Why do all of your memory addresses have a 0 in front of them? |
I'm not really an ASM programmer. I thought that all the addresses needed a 0 in front of them. |
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KermMartian
Site Admin
Joined: 14 Mar 2005
Posts: 55762
Location: Earth, Sol, Milky Way
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| Posted: 14 Apr 2011 02:33:39 am Post subject: |
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Only the ones that start with a letter. There are two accepted formats: $F02C/$89E2, or 0F02Ch/89E2h.
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Compynerd255
Power User
Joined: 08 Apr 2011
Posts: 397
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| Posted: 14 Apr 2011 09:21:03 am Post subject: |
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| ACagliano wrote: | I get what you are saying Kerm, so we are clear on that.
I'm just confused. I don't believe Axe uses little endian, so in Axe, it may be 0x80[size]. Maybe you can tell me Kerm,
if I had to flip the memory high and low bytes of the Cn2 calls and the memory areas from the standard z80 conventions in order to use them in Axe, I should have to flip this as well, correct. |
If you are using z80 hexcodes, you are using little endian. However, in Axe, the pointers are 2 byte values, so you don't have to worry about it - it manages it for you. The only note I need to make about this Axiom is that you must store or read 128 to the Delta ("Frame Ready") values. |
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KermMartian
Site Admin
Joined: 14 Mar 2005
Posts: 55762
Location: Earth, Sol, Milky Way
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