Re: Uthernet II Assembly Listing Questions

From	awanderin <awanderin@gmail.com>
Newsgroups	comp.sys.apple2
Subject	Re: Uthernet II Assembly Listing Questions
Date	2016-01-09 00:02 -0700
Organization	A noiseless patient Spider
Message-ID	<m3bn8vb5hf.fsf@gmail.com> (permalink)
References	(1 earlier) <n6kbq5$51s$1@dont-email.me> <dog_cow-1452200424@macgui.com> <n6n168$bj2$1@dont-email.me> <m3fuy8bji4.fsf@gmail.com> <n6oloq$ven$1@dont-email.me>

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ultramagnus_tcv <mikew@thecomputervalet.com> writes:

> On 2016-01-08 07:47:15 +0000, awanderin said:
>
>>> IIRC, $ = Memory Location, #$ = enter value (Hex). Is #6 = enter value
>>> (dec)?
>>
>> Yes, $ in front means hex, % means binary (0s and 1s), nothing means
>> decimal.
>
> Thank you, Jerry.
>
> But what is: #6?

The # indicates immediate mode.  What this means is that the operand
value itself is loaded into the register (for LDA/LDX/CPY), or whatever
other operation the mnemonic determines (CMP/SBC/EOR/AND, you get the
idea).

With other addressing modes, the operand value is a memory address from
which the value is fetched before performing the operation.

    LDA #xxx
loads the value xxx into the accumulator.  If xxx == "$10", then 16
(base-10) is loaded.  If xxx == "10", then 10 (base-10) is loaded.  In
Merlin, if xxx == "%1011", then 11 (base-10) is loaded.

Conversely, all these examples below load the contents of memory address
64 into the accumulator:

    lda  $40
    lda  64
    lda  %1000000

-- 
--
Jerry    awanderin at gmail dot com

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Uthernet II preferred slot Steven Nelson <steven-nelson@uiowa.edu> - 2016-01-02 12:08 -0800
  Re: Uthernet II preferred slot "Bill Garber" <willy46pa@comcast.net> - 2016-01-02 18:28 -0500
  Re: Uthernet II preferred slot ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-01-03 10:42 -0600
  Re: Uthernet II preferred slot Ken C <arizonakenwc@gmail.com> - 2016-01-04 05:42 -0800
    Re: Uthernet II preferred slot D Finnigan <dog_cow@macgui.com> - 2016-01-04 15:13 +0000
      Re: Uthernet II preferred slot ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-01-04 10:49 -0600
        Re: Uthernet II preferred slot D Finnigan <dog_cow@macgui.com> - 2016-01-04 18:37 +0000
          Re: Uthernet II preferred slot ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-01-04 13:45 -0600
          Re: Uthernet II preferred slot ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-01-04 17:53 -0600
            Re: Uthernet II preferred slot David Schmidt <schmidtd@my-deja.com> - 2016-01-04 20:54 -0500
            Re: Uthernet II preferred slot D Finnigan <dog_cow@macgui.com> - 2016-01-05 21:22 +0000
              Re: Uthernet II preferred slot ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-01-05 19:32 -0600
                Re: Uthernet II preferred slot D Finnigan <dog_cow@macgui.com> - 2016-01-06 17:58 +0000
                Re: Uthernet II preferred slot ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-01-06 16:45 -0600
                Re: Uthernet II preferred slot D Finnigan <dog_cow@macgui.com> - 2016-01-07 20:49 +0000
                Re: Uthernet II preferred slot David Schmidt <schmidtd@my-deja.com> - 2016-01-07 16:05 -0500
                Re: Uthernet II preferred slot D Finnigan <dog_cow@macgui.com> - 2016-01-07 21:21 +0000
                Re: Uthernet II preferred slot ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-01-07 18:54 -0600
                Re: Uthernet II preferred slot D Finnigan <dog_cow@macgui.com> - 2016-01-08 17:56 +0000
                Re: Uthernet II preferred slot spectrumdaddy@nospam.com (Ewen) - 2016-01-08 07:31 +0000
                Re: Uthernet II preferred slot ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-01-08 09:52 -0600
                Re: Uthernet II preferred slot D Finnigan <dog_cow@macgui.com> - 2016-01-08 18:09 +0000
                Re: Uthernet II preferred slot spectrumdaddy@nospam.com (Ewen) - 2016-01-09 08:09 +0000
                Re: Uthernet II preferred slot spectrumdaddy@nospam.com (Ewen) - 2016-01-09 08:17 +0000
                Re: Uthernet II preferred slot ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-01-06 18:36 -0600
                Re: Uthernet II preferred slot D Finnigan <dog_cow@macgui.com> - 2016-01-07 20:57 +0000
                Re: Uthernet II preferred slot ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-01-07 18:06 -0600
                Re: Uthernet II preferred slot D Finnigan <dog_cow@macgui.com> - 2016-01-08 18:07 +0000
                Re: Uthernet II preferred slot ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-01-08 16:44 -0600
                Re: Uthernet II preferred slot Jeff Blakeney <CUTjeffrey_blakeney@yahoo.ca> - 2016-01-08 15:25 -0500
                Re: Uthernet II preferred slot ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-01-08 16:43 -0600
                Uthernet II Assembly Listing Questions (was: Re: Uthernet II preferred slot) ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-01-07 18:54 -0600
                Re: Uthernet II Assembly Listing Questions awanderin <awanderin@gmail.com> - 2016-01-08 00:47 -0700
                Re: Uthernet II Assembly Listing Questions ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-01-08 09:51 -0600
                Re: Uthernet II Assembly Listing Questions ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-01-08 10:28 -0600
                Re: Uthernet II Assembly Listing Questions Raymond Wiker <rwiker@gmail.com> - 2016-01-08 20:46 +0100
                Re: Uthernet II Assembly Listing Questions Michael J. Mahon <mjmahon@aol.com> - 2016-01-09 12:38 -0600
                Re: Uthernet II Assembly Listing Questions ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-01-09 15:00 -0600
                Re: Uthernet II Assembly Listing Questions awanderin <awanderin@gmail.com> - 2016-01-09 00:02 -0700
                Re: Uthernet II Assembly Listing Questions ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-01-09 09:05 -0600
                Re: Uthernet II preferred slot ultramagnus_tcv <mikew@thecomputervalet.com> - 2016-01-08 18:38 -0600
                Re: Uthernet II preferred slot ol.sc@web.de (Oliver Schmidt) - 2016-01-19 20:37 +0000
        Re: Uthernet II preferred slot Steven Nelson <steven-nelson@uiowa.edu> - 2016-01-04 10:41 -0800
          Re: Uthernet II preferred slot D Finnigan <dog_cow@macgui.com> - 2016-01-04 18:47 +0000
            Re: Uthernet II preferred slot Steven Nelson <steven-nelson@uiowa.edu> - 2016-01-04 15:21 -0800
              Re: Uthernet II preferred slot D Finnigan <dog_cow@macgui.com> - 2016-01-05 21:16 +0000
          Re: Uthernet II preferred slot Delfs <eeastman@gmail.com> - 2016-01-05 03:24 -0800
  Re: Uthernet II preferred slot MarkO_ <apple2@markoverholser.com> - 2016-01-13 13:55 -0600

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