Mark Cave-Ayland 9777741703 target/m68k: add M68K_FEATURE_UNALIGNED_DATA feature ... According to the M68040UM Appendix D the requirement for data accesses to be word aligned is only for the 68000, 68008 and 68010 CPUs. Later CPUs from the 68020 onwards will allow unaligned data accesses but at the cost of being less efficient. Add a new M68K_FEATURE_UNALIGNED_DATA feature to specify that data accesses are not required to be word aligned, and don't perform the alignment on the stack pointer when taking an exception if this feature is not selected. This is required because the MacOS DAFB driver attempts to call an A-trap with a byte-aligned stack pointer during initialisation and without this the stack pointer is off by one when the A-trap returns. Backports a9431a03f70c8c711a870d4c1a0439bdbb4703cf		2021-03-12 14:55:43 -05:00
..
arm	qemu/atomic.h: rename atomic_ to qatomic_	2021-03-08 14:34:35 -05:00
i386	qemu/atomic.h: rename atomic_ to qatomic_	2021-03-08 14:34:35 -05:00
m68k	target/m68k: add M68K_FEATURE_UNALIGNED_DATA feature	2021-03-12 14:55:43 -05:00
mips	mips: Fix build	2021-03-05 08:51:51 -05:00
riscv	target/riscv/pmp: Raise exception if no PMP entry is configured	2021-03-08 15:39:55 -05:00
sparc	sparc: Fix build	2021-03-05 08:54:43 -05:00