Could use more dword-addressable memory.

[basvs]

Free up more 8-bit addressable memory.

Experimental, untested byte getter and setter methods:

uint8_t
u32_get_byte(uint8_t *ptr)
{
    intptr_t _ptr = (intptr_t) ptr;
    uint32_t *ptr_u32 = (uint32_t *) (_ptr & ~3);
    return (*ptr_u32 >> ((_ptr & 3) << 3)) & 0xff
}

void
u32_set_byte(uint8_t *ptr, uint8_t value)
{
    intptr_t _ptr = (intptr_t) ptr;
    uint32_t *ptr_u32 = (uint32_t *) (_ptr & ~3);
    uint32_t u32 = *ptr_u32;
    u32 &= ~( 0xff << ((_ptr & 3) << 3) );
    u32 |= value << ((_ptr & 3) << 3);
    *ptr_u32 = u32;
}