The previous test did not expect failure when trying to stuff $3000 bytes into $2000-byte WRAM; this is now fixed, and we also test the reverse now (that we cannot stuff more than $1000 bytes into WRAM0 without `-d`/`-w`.
Now, it will also make sure that VRAM bank 1 isn't used. Man page updated. Tests added. Signed-off-by: Antonio Niño Díaz <antonio_nd@outlook.com>