the topic says almost all. it is really weird where 0xdeadbeef only affects installed niresh12945, not the installer.
i've installed with amd64 kernel successfully (well i don't really know actually if it succeed or not, because i left the laptop on and when i come back, it is already restarted).
it is Acer Aspire One 725 netbook, but with -x boot option it won't boot and just freeze, but with just amd64 kernel (even without -v) it will boot.
after installed successfully, i tried to boot mac os from darwin from usb (directly boot to hard disk ends with boot0 : error so i reinstalled BCD from windows), then it ends with Memory allocation error, 0xdeadbeef, and ati.c ........
when i install mac os, i did not select anything except enable battery percentage and default options.
specs (copied from some random website, but i can confirm it is the same laptop)
Processor Type AMD Dual Core Processor
Processor Onboard AMD Dual-Core Processor C-70 (1.0 GHz, Cache 1MB)
Memory 2 GB DDR3
Video Type AMD Radeonâ„¢ HD 6290
Display Size 11.6" HD
Display Technology CineCrystal LED
Audio Type Integrated
Speakers Type Integrated
Hard Drive Type 320 GB Serial ATA 5400 RPM
Networking Fast Ethernet
Network Speed 10 / 100 Mbps
Wireless Network Type Integrated
Wireless Network Protocol IEEE 802.11b, IEEE 802.11g, IEEE 802.11n
Keyboard Type Standard Keyboard
Input Device Type Touch Pad
O/S Provided Microsoft Windows 8 64 bit
From device manager
Wireless Atheros AR5B125 Wireless Network Adapter
Network Realtek PCIe FE Family Controller