diff options
Diffstat (limited to 'qemu/roms/SLOF/board-js2x/llfw/stage_s.S')
| -rw-r--r-- | qemu/roms/SLOF/board-js2x/llfw/stage_s.S | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/qemu/roms/SLOF/board-js2x/llfw/stage_s.S b/qemu/roms/SLOF/board-js2x/llfw/stage_s.S new file mode 100644 index 000000000..202350f67 --- /dev/null +++ b/qemu/roms/SLOF/board-js2x/llfw/stage_s.S @@ -0,0 +1,43 @@ +/****************************************************************************** + * Copyright (c) 2004, 2008 IBM Corporation + * All rights reserved. + * This program and the accompanying materials + * are made available under the terms of the BSD License + * which accompanies this distribution, and is available at + * http://www.opensource.org/licenses/bsd-license.php + * + * Contributors: + * IBM Corporation - initial implementation + *****************************************************************************/ + .text + .org 0 /* after loading to mem this is at slaveloop_base */ +# . = 0x3f00 loaded to this addr + .globl __stage_s_entry + +__stage_s_entry: + bl $+4 + mflr r4 + li r3, 0xff + not r3, r3 + and r4, r4, r3 + li 0,1 ; std 0,0xf8(4) + li 0,0 ; std 0,0xa0(4) +slaveloop: + ori 28,28,0x100 + lis 0,10 + mtctr 0 + bdnz $ # do some waiting, to prevent flooding the buses + lwz 0,0xa0(4) + cmpw 0,28 + bne $-20 # wait for our flag + + lwz 0,0x80(4) + lwz 3,0xc0(4) + mtctr 0 + bctr # jump to specified address, with specified GPR3 + +# .quad 0 +# .quad 0 + + + |