diff options
Diffstat (limited to 'main.asm')
| -rw-r--r-- | main.asm | 5 |
1 files changed, 4 insertions, 1 deletions
@@ -92,7 +92,8 @@ emu_teardown: ;; Take a virtual address in d1 and dereference it. Returns the ;; host address in a0. Destroys a0, d0. -deref: +deref: ; 76 cycles + 18 cycles for bsr + ; 20 bytes to inline, saves 34 cycles per call move.w d1,d0 andi.w #$3FFF,d0 movea.w d0,a0 @@ -133,6 +134,8 @@ pages: dc.l 0 ;; Destroys d0 ; XXX AFAICS, a1 is currently a scratch address register, so you can load deref_table in it, and then save some space: ; But you may wish to use it for other purposes in the future, so you needn't integrate that immediately. + + ;; Guessing this is 300 cycles. underef: move.l d2,-(a7) lea deref_table(pc),a1 |