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This commit is contained in:
Aaron Culliney 2014-05-11 13:15:14 -07:00
parent f785da40e9
commit 403cb8b154
1 changed files with 10 additions and 0 deletions
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10
src/asm386/memory.S
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@ -154,6 +154,16 @@ return80: movb $0x80,%al
/* HACK!!!!! - how does the expansion slot get referenced? need to handle other roms requesting to use this area!!!! */
E(iie_read_slot_expansion)
#if 0
/* HACK FIXME TODO NOTE: why is this a problematic pattern?
Shouldn't it be the same result as the original? The mov (%eax), %eax appears suspicious ...
*/
movl $SN(apple_ii_64k), %eax
addl $c8rom_offset, %eax
addl EffectiveAddr_E, %eax
movzbl (%eax), %eax
ret
#endif
orl SN(c8rom_offset), EffectiveAddr_E
movb SN(apple_ii_64k)(,EffectiveAddr_E,1), %al
andl $0xFFFF, EffectiveAddr_E