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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 1995-07-18 19:27:50 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 1995-07-18 19:27:50 +0000 |
commit | 80445331528a5d1b0ce85f095fe27a3b7fdf5a9e (patch) | |
tree | ca7d09bddb0a44ead621008d207cb27132864124 /cpukit/score/cpu/unix/cpu.c | |
parent | all built successfully after merge (diff) | |
download | rtems-80445331528a5d1b0ce85f095fe27a3b7fdf5a9e.tar.bz2 |
merged Linux UNIX simulator support (C)
Diffstat (limited to '')
-rw-r--r-- | cpukit/score/cpu/unix/cpu.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/cpukit/score/cpu/unix/cpu.c b/cpukit/score/cpu/unix/cpu.c index acd53e3fd2..a7e1b3bfce 100644 --- a/cpukit/score/cpu/unix/cpu.c +++ b/cpukit/score/cpu/unix/cpu.c @@ -391,6 +391,28 @@ void _CPU_Context_Initialize( *(addr + RP_OFF) = jmp_addr + ADDR_ADJ_OFFSET; *(addr + SP_OFF) = (unsigned32)(_stack_high - CPU_FRAME_SIZE); *(addr + FP_OFF) = (unsigned32)(_stack_high); + +#elif defined(i386) + + /* + * This information was gathered by disassembling setjmp(). + */ + + stack_ptr = _stack_high - CPU_FRAME_SIZE; + *(addr + EBX_OFF) = 0xFEEDFEED; + *(addr + ESI_OFF) = 0xDEADDEAD; + *(addr + EDI_OFF) = 0xDEAFDEAF; + *(addr + EBP_OFF) = stack_ptr; + *(addr + ESP_OFF) = stack_ptr; + *(addr + RET_OFF) = jmp_addr; + + + addr = (unsigned32 *) stack_ptr; + + addr[ 0 ] = jmp_addr; + addr[ 1 ] = (unsigned32) stack_ptr; + addr[ 2 ] = (unsigned32) stack_ptr; + #else #error "UNKNOWN CPU!!!" #endif |