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| author | Kevin O'Connor <kevin@koconnor.net> | 2008-03-11 11:14:59 -0400 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2008-03-11 11:14:59 -0400 |
| commit | ed12849c9b06e371f11596a32da5997c96d9bc95 (patch) | |
| tree | 690280737159fb0f8feb42301d37e660517928f2 /TODO | |
| parent | 2cdd8b6fb1aced4ec08c5e98705922c27285ddfb (diff) | |
| download | seabios-hppa-ed12849c9b06e371f11596a32da5997c96d9bc95.zip seabios-hppa-ed12849c9b06e371f11596a32da5997c96d9bc95.tar.gz seabios-hppa-ed12849c9b06e371f11596a32da5997c96d9bc95.tar.bz2 | |
Reduce stack usage for ISRs; minor fixes.
Don't back up all registers on isr handlers - they don't read/modify
them. This saves stack space.
extended_bios_data_area_s must be packed to match ebda spec.
Enable irqs on int 08 - follows old bochs bios code.
Fix bug in int 76 -- should clear disk_interrupt_flag not
floppy_harddisk_info.
Make sure we alert in disk_ret on failure case.
int 18/19 entry points need to setup cld/%ds too.
asm in handle_1587 clobbers flags - note that in clobber list.
Diffstat (limited to 'TODO')
| -rw-r--r-- | TODO | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -1,5 +1,8 @@ Audit all sti/cli calls. +Audit statements where a 32bit intermediary changes meaning of a 16bit +comparison. + Look into ways to reduce stack usage. For example, %esp, %ebp, %esi (high bits), %edi (high bits) are already restored by the C code if they're changed - they probably don't need to be backed up on entry. |