v1.3.6
Fixed: - SetDFFD/PageMemoryPlus3 had the same MMU6/7-sync bug as v1.3.5's PageMemory fix; both now unconditional, matching zxnext.vhd. - Port $EFF7 was entirely unimplemented; added. - Systematic MMU-sync test matrix across all paging-port write sources. See CHANGELOG.md for v1.3.4-v1.3.6 details.