writing bytes to CDI gives erroneous result on hw, should on qemu too

[quite]

mc discovered that in hardware, writing bytes to CDI in this manner:

uint32_t cdi_writetest[CDI_WORDS] = {0xdeafbeef, 0xdeafbeef, 0xdeafbeef,
                                        0xdeafbeef, 0xdeafbeef, 0xdeafbeef,
                                         0xdeafbeef, 0xdeafbeef};
memcpy_s((void *)cdi, CDI_WORDS * 4, cdi_writetest, CDI_WORDS * 4);
puts("cdi: \r\n");
hexdump((uint8_t *)cdi, CDI_WORDS * 4);

results in CDI:

dededededededede0000000000000000
00000000000000000000000000000000

compared to writing words:

efbeafdeefbeafdeefbeafdeefbeafde
efbeafdeefbeafdeefbeafdeefbeafde

Perhaps QEMU should behave like this too

[mchack-work]

Investigate status in qemu. How hard is it to enforce word addressibility.