Firebee/FireBee_SVN
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

fixed comments

Browse Source
This commit is contained in:
Markus Fröschle
2013-11-23 06:13:30 +00:00
parent 99dcb1cc87
commit 5febda57cb
1 changed files with 4 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
BaS_gcc/sources/exceptions.S
View File

@@ -544,7 +544,8 @@ access:
beq access_mmu // yes
cmpi.l #0x0c02,d0 // TLB miss on data read, or read-modify-write?
beq access_mmu // yes
bra bus_error // everything else
bra bus_error // everything else is a classic bus error
access_mmu:
move.l MCF_MMU_MMUSR,d0 // did the last fault hit in TLB?
@@ -555,12 +556,12 @@ access_mmu:
cmp.l #__FASTRAM_END,d0 // above max User RAM area?
bge bus_error // -> bus error
lea -4*4(sp),sp
lea -4*4(sp),sp // save gcc scratch registers
movem.l d0-d1/a0-a1,(sp)
jsr _mmutr_miss // else we have an MMU TLB miss
movem.l (sp),d0-d1/a0-a1
movem.l (sp),d0-d1/a0-a1 // restore gcc scratch registers
lea 4*4(sp),sp
move.l (sp)+,d0 // restore register