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Updated some comments.

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committer: mfx <mfx> 969524491 +0000
This commit is contained in:
Markus F.X.J. Oberhumer 2000-09-21 08:21:31 +00:00
parent 5e4cf139f9
commit dd1a0f87bd
1 changed files with 9 additions and 7 deletions
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16
src/stub/l_tos.s
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@ -87,7 +87,7 @@ fh_size equ $1c ; 28 bytes
;
; long living registers:
; d4 p_tbase - start of text segment
; a6 p_bbase - start of uncompressed bss segment, this also is the
; a6 p_bbase - start of decompressed bss segment, this also is the
; - end of decompressed text+data
; - beginning of decompressed relocations
; - beginning of dirty bss
@ -126,7 +126,7 @@ L(start): movem.l d1-d7/a0-a6,-(sp)
add.l (a2)+,a6
move.l a6,(a2)+ ; p_dbase
move.l #'up12',(a2) ; p_dlen
add.l (a2)+,a6 ; a6 = uncompressed p_bbase
add.l (a2)+,a6 ; a6 = decompressed p_bbase
move.l (a2),a1 ; a1 = compressed p_bbase
move.l a6,(a2)+ ; p_bbase
move.l #'up13',(a2) ; p_blen
@ -177,8 +177,10 @@ L(loop2): move.l -(a1),-(a0)
#endif
; a0 now points to the start of the compressed block
; ------------- copy code to stack
; ------------- copy code to stack and setup a5
; Copy the final startup code below the stack. This will get
; called via "jmp (a5)" after decompression and relocation.
@ -198,11 +200,11 @@ L(loop): move.w -(a2),-(a5)
; ------------- prepare decompressor
; a0 now points to the start of the compressed block
; a0 still points to the start of the compressed block
; note: the next statement can be moved below cutpoint
; if it helps for the align4
;;move.l d4,a1 ; dest. for uncompressing
move.l d4,a1 ; dest. for uncompressing
;;move.l d4,a1 ; dest. for decompressing
move.l d4,a1 ; dest. for decompressing
; ------------- jump to copied decompressor
@ -305,7 +307,7 @@ cutpoint:
; ------------- test if we need to reloc
dc.b 'u3' ; jmp (a5) / moveq.l #1,d3
dc.b 'u3' ; moveq.l #1,d3 / jmp (a5)
; ------------- reloc