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Z80 & 68k Assembly =>
z80 & ez80 Assembly
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omni
Member
Joined: 14 Jun 2003
Posts: 115
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 Posted: 07 Oct 2003 06:52:45 pm Post subject: |
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| I'm reading a tutorial and whats it mean by setting a wire high or low? |
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62 52 53 53
Formerly known as 62 52 53 53
Active Member
Joined: 30 May 2003
Posts: 607
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| Posted: 08 Oct 2003 04:26:49 pm Post subject: |
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| ignore that. use bcall(_sendabyte) to send a byte, and whatever you use to recieve |
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Tyraniek
Member
Joined: 07 Jun 2003
Posts: 133
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| Posted: 09 Oct 2003 11:15:48 am Post subject: |
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| Could anyone explain how to use this rom call exactly ? |
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NETWizz
Byte by bit
Bandwidth Hog
Joined: 20 May 2003
Posts: 2369
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| Posted: 09 Oct 2003 04:14:42 pm Post subject: |
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load a with the byte to send.
so, if you want to send 7
ld a,7
bcall(_SendAByte) |
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Tyraniek
Member
Joined: 07 Jun 2003
Posts: 133
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| Posted: 10 Oct 2003 12:19:16 am Post subject: |
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| OK, but how do we receive it ? Is there any rom call to do that ? If so, does the rom call wait till the byte arrives, or do we have to make a loop ourselves ? |
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NETWizz
Byte by bit
Bandwidth Hog
Joined: 20 May 2003
Posts: 2369
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| Posted: 10 Oct 2003 12:55:02 am Post subject: |
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bcall(_RecieveAByte)
I believe it waits for a short period of time, but I will have to check the documentation. |
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Tyraniek
Member
Joined: 07 Jun 2003
Posts: 133
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| Posted: 10 Oct 2003 08:27:05 am Post subject: |
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OK Thank you
I may try that  |
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Adm.Wiggin
aka Tianon
Know-It-All
Joined: 02 Jun 2003
Posts: 1874
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| Posted: 10 Oct 2003 04:24:16 pm Post subject: |
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| yes, im pretty sure that only lasts for a sec or 2... then does it return an error or something? |
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David
The XORcist!
Advanced Member
Joined: 20 May 2003
Posts: 268
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| Posted: 10 Oct 2003 04:39:04 pm Post subject: |
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| bcall(_recAbyteIO) reads and waits approx. one second for link activity. If no activity present: ERR:LINK, unless you have set an error handler. |
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