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Add alignment info

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meepingsnesroms
2019-04-08 22:04:44 -07:00
parent f11fdcdf18
commit f166dd173b
1 changed files with 17 additions and 0 deletions
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17
src/debug/sandbox.c
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@@ -833,6 +833,23 @@ uint32_t sandboxCommand(uint32_t command, void* data){
IDs be assigned to these heaps. Subsequent storage heaps would be assigned
IDs in sequential order, as always beginning with RAM heaps, followed by ROM heaps.
*/
//this looks like the code that ensures heap alignment sizes are correct, if I force everything to a multiple of 4 that may fix ARM behavior
/*
ROM:10020D04 moveq #1,d0 ; Move Quick
ROM:10020D06 and.l size(a6),d0 ; Check if size is a multiple of 2
ROM:10020D0A addq.w #2,sp ; Add Quick
ROM:10020D0C beq.s loc_10020D16 ; Skip adding extra byte if already aligned
ROM:10020D0E moveq #9,d0 ; Size is not 16 bit aligned, align and add 8 bytes
ROM:10020D10 add.l size(a6),d0 ; Add requested size
ROM:10020D14 bra.s loc_10020D1C ; Branch Always
ROM:10020D16 ; ---------------------------------------------------------------------------
ROM:10020D16
ROM:10020D16 loc_10020D16: ; CODE XREF: PrvChunkNew_10020CBC+50↑j
ROM:10020D16 move.l size(a6),d0 ; Set requested size
ROM:10020D1A addq.l #8,d0 ; Add 8 bytes(currently dont know what there for)
ROM:10020D1C
*/
}
break;