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The Technocratic Times 2
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1988-12-31
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THE AMIGA:
The amiga consists of a MC 68000 main
processor and several custom processors
specialized in handling graphics, sound
I/O and so on. The ROM contains the
operating system and the 'built in'
routines for handling gfx and sound.The
RAM is on a unexpanded Amiga 512 Kb.The
custom chips are: Fat agnus - contains
the blitter (block image transferrer)
and the copper (co-processor).
Paula - handles the sound channels, the
I/O and the interrupts.
Denise - handles the graphics(different
resolution, colors and so on)
as well as the eight sprite
channels.
Don't worry (be happy) if you didn't
understand a thing. You will.The moving
of data between the custom chips is
handled by 25 DMA channles (Direct
Memory Access)which is much faster than
taking the 'long way' around the main
processor wich happily can continue
unburdened with whaterver it was doing.
This makes the Amiga a very fast
machine when coming to graphics and
sound even tough it's clock speed is a
bit slower than for example the ST.
THE SEKA ASSEMBLER:
When you first load the Seka you will
be asked for wich sort of memory you
will be using, Chip- or Fastmem. If you
have a unexpanded Amiga (like me) you
choose chipmem. if you have a memory
expansion you choose Fastmem, then your
workspace will be situated in the
memory expansion wich often is very
convenient. Then you must specify the
size of the workspace,it really doesn't
matter but about 200Kb will do.The seka
consists of two windows, the command
window and the edit window. After
specifying the workspace you will be in
the command window. Here you give all
the commands concerning loading, saving
assembling and so on.When you press the
ESC-key you switch to the edit window.
Here you type and edit all your source
code. ESC switches back again. Here
follows a summary of the commands
concerning the two windows, they are
typed from memory so i might have
forgotten something (probably).
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THE COMMAND WINDOW
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r <filename> = Read source(code)