Commit to running on an SMP (perhaps with only 1 core). Remove most code
from picirq.c and remove timer.c completely. Update runoff.list.

A tiny bit of clean up (e.g., move code searching cpu array from lapic.c into
mycpu() in proc.c.

use panic

Start of an experiment to remove the use of gs for cpu local variables.

Replace I_BUSY with sleep locks

Fix a few lines that runoff is complaining about that they are too long

APIC IDs may not be consecutive and start from zero, so we cannot really use it
as a direct index into cpus. Record apicid in struct cpu and have cpunum() look
for it. Replace cpu->id with cpunum()

APIC IDs may not be consecutive and start from zero, so we cannot really use it
as a direct index into cpus. Record apicid in struct cpu and have cpunum() look
for it. Replace cpu->id with cpunum() everywhere, and replace cpu->id with cpu->apicid.
Thanks to Xi Wang.

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Remove trailing white space with:
for f in *.{h,c}; do sed -i .sed 's/[[:blank:]]*$//' $f; done
(Thanks to Nicolás Wolovick)

nits

Remove console input.lock

Use cons.lock for everything. This eliminates the possibility that two CPUS
independently, simultaneously manipulate the CRTC in cgaputc.

Add sanity check panic for CRTC interactions

Remove unused 'state' variable that broke the build in recent gcc's

Fix same wonky pagebreak bug in console.c

Map kernel high
Very important to give qemu memory through PHYSTOP :(

fixes from Peter Froehlich

make new code like old code

Variable declarations at top of function,
separate from initialization.

Use == 0 instead of ! for checking pointers.

Consistent spacing around {, *, casts.

Declare 0-p

make new code like old code

Variable declarations at top of function,
separate from initialization.

Use == 0 instead of ! for checking pointers.

Consistent spacing around {, *, casts.

Declare 0-parameter functions as (void) not ().

Integer valued functions return -1 on failure, 0 on success.

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Get consoleintr back on one page

Get cgaputc and consputc back on the same page

Space police

Tab police

Handle backspace on serial input and output better. Better solutions are welcome.

Hack to make newlines on the serial port work

assorted fixes:
* rename c/cp to cpu/proc
* rename cpu.context to cpu.scheduler
* fix some comments
* formatting for printout

shuffle and tweak for formatting.
pdf has very good page breaks now.
would be a good copy for fall 2009.

group locks into structs they protect.
few naming nits.