diff options
Diffstat (limited to 'qemu/roms/SLOF/slof/ppc64.c')
-rw-r--r-- | qemu/roms/SLOF/slof/ppc64.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/qemu/roms/SLOF/slof/ppc64.c b/qemu/roms/SLOF/slof/ppc64.c new file mode 100644 index 000000000..20d927069 --- /dev/null +++ b/qemu/roms/SLOF/slof/ppc64.c @@ -0,0 +1,110 @@ +/****************************************************************************** + * 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 + *****************************************************************************/ + +#include <cpu.h> + +/* the exception frame should be page aligned + * the_exception_frame is used by the handler to store a copy of all + * registers after an exception; this copy can then be used by paflof's + * exception handler to printout a register dump */ +cell the_exception_frame[0x400 / CELLSIZE] __attribute__ ((aligned(PAGE_SIZE)));; + +/* the_client_frame is the register save area when starting a client */ +cell the_client_frame[0x1000 / CELLSIZE] __attribute__ ((aligned(0x100))); +cell the_client_stack[0x8000 / CELLSIZE] __attribute__ ((aligned(0x100))); +/* THE forth stack */ +cell the_data_stack[0x2000 / CELLSIZE] __attribute__ ((aligned(0x100))); +/* the forth return stack */ +cell the_return_stack[0x2000 / CELLSIZE] __attribute__ ((aligned(0x100))); + +/* forth stack and return-stack pointers */ +cell *restrict dp; +cell *restrict rp; + +/* terminal input buffer */ +cell the_tib[0x1000 / CELLSIZE] __attribute__ ((aligned(0x100))); +/* temporary string buffers */ +char the_pockets[NUMPOCKETS * POCKETSIZE] __attribute__ ((aligned(0x100))); + +cell the_comp_buffer[0x1000 / CELLSIZE] __attribute__ ((aligned(0x100))); + +cell the_heap[HEAP_SIZE / CELLSIZE] __attribute__ ((aligned(0x1000))); +cell *the_heap_start = &the_heap[0]; +cell *the_heap_end = &the_heap[HEAP_SIZE / CELLSIZE]; + +extern void io_putchar(unsigned char); + + +static unsigned long __attribute__((noinline)) +call_c(cell arg0, cell arg1, cell arg2, cell entry) +{ + register unsigned long r3 asm("r3") = arg0.u; + register unsigned long r4 asm("r4") = arg1.u; + register unsigned long r5 asm("r5") = arg2.u; + register unsigned long r6 = entry.u ; + + asm volatile("mflr 31 ; mtctr %4 ; bctrl ; mtlr 31" + : "=r" (r3) + : "r" (r3), "r" (r4), "r" (r5), "r" (r6) + : "ctr", "r6", "r7", "r8", "r9", "r10", "r11", + "r12", "r13", "r31", "lr", "cc"); + + return r3; +} + + +long +writeLogByte_wrapper(long x, long y) +{ + unsigned long result; + + SET_CI; + result = writeLogByte(x, y); + CLR_CI; + + return result; +} + + +/** + * Standard write function for the libc. + * + * @param fd file descriptor (should always be 1 or 2) + * @param buf pointer to the array with the output characters + * @param count number of bytes to be written + * @return the number of bytes that have been written successfully + */ +int +write(int fd, const void *buf, int count) +{ + int i; + char *ptr = (char *)buf; + + if (fd != 1 && fd != 2) + return 0; + + for (i = 0; i < count; i++) { + if (*ptr == '\n') + io_putchar('\r'); + io_putchar(*ptr++); + } + + return i; +} + +/* This should probably be temporary until a better solution is found */ +void +asm_cout(long Character, long UART, long NVRAM __attribute__((unused))) +{ + if (UART) + io_putchar(Character); +} |