diff options
Diffstat (limited to 'src/vm/amd64/jithelpers_slow.S')
| -rw-r--r-- | src/vm/amd64/jithelpers_slow.S | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/src/vm/amd64/jithelpers_slow.S b/src/vm/amd64/jithelpers_slow.S index 0a5da69393..f61b42afc7 100644 --- a/src/vm/amd64/jithelpers_slow.S +++ b/src/vm/amd64/jithelpers_slow.S @@ -94,16 +94,36 @@ LEAF_ENTRY JIT_WriteBarrier_Debug, _TEXT // Check if we need to update the card table // Calc pCardByte shr rdi, 0x0B + PREPARE_EXTERNAL_VAR g_card_table, r10 - add rdi, [r10] + mov r10, [r10] // Check if this card is dirty - cmp byte ptr [rdi], 0FFh + cmp byte ptr [rdi + r10], 0FFh + jne UpdateCardTable_Debug REPRET UpdateCardTable_Debug: + mov byte ptr [rdi + r10], 0FFh + +#ifdef FEATURE_MANUALLY_MANAGED_CARD_BUNDLES + // Shift rdi by 0x0A more to get the card bundle byte (we shifted by 0x0B already) + shr rdi, 0x0A + + PREPARE_EXTERNAL_VAR g_card_bundle_table, r10 + add rdi, [r10] + + // Check if this bundle byte is dirty + cmp byte ptr [rdi], 0FFh + + jne UpdateCardBundle_Debug + REPRET + + UpdateCardBundle_Debug: mov byte ptr [rdi], 0FFh +#endif + ret .balign 16 |