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Fix tasking shim making wrong exeception frame

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pjht 2024-03-20 11:35:27 -05:00
parent 1449f2bdb5
commit e8b988f824
Signed by: pjht
GPG Key ID: CA239FC6934E6F3A
1 changed files with 5 additions and 0 deletions
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@ -110,6 +110,11 @@ tnp_as_copy:
rts rts
tasking_um_switch_shim: tasking_um_switch_shim:
move.l (a7)+, a0 ; Get the target PC into a0
; Push a dummy format/vector word
move.w #0, -(a7)
; Push the PC
move.l a0, -(a7)
move.w sr, d0 ; Push the SR with the supervisor bit cleared to make a "fake" exception frame move.w sr, d0 ; Push the SR with the supervisor bit cleared to make a "fake" exception frame
andi.w #(~$2000), d0 andi.w #(~$2000), d0
move.w d0, -(a7) move.w d0, -(a7)