collapseos/blk/425

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2020-05-21 15:25:12 -04:00
anatomy. First, we have constants. Some of them are device-
specific, but some of them are always there. SYSVARS is the
2020-05-21 15:25:12 -04:00
address at which the RAM starts on the system. System variables
will go there and HERE will go after it.
RS_ADDR is where RSP starts and PS_ADDR is where PSP starts.
RSP and PSP are designed to be contiguous. RSP goes up and PSP
goes down. If they meet, we know we have a stack overflow.
Then, we load the assembler and cross compilation unit, which
will be needed for the task ahead.
Then, it's a matter of adding layer after layer. For most
system, all those layers except the drivers will be added the
same way. Drivers are a bit tricker and machine specific. I
can't help you there, you'll have to use your wits. (cont.)