1.1 --- a/VMS.c	Mon Nov 08 03:57:46 2010 -0800
     1.2 +++ b/VMS.c	Fri Nov 12 07:36:01 2010 -0800
     1.3 @@ -358,8 +358,48 @@
     1.4     #endif
     1.5     //=======================================================================
     1.6  
     1.7 +/* VirtProcr  offsets:
     1.8 + * 0xc  stackPtr
     1.9 + * 0x10 framePtr
    1.10 + * 0x14 nextInstrPt
    1.11 + * 0x1c coreLoopFramePtr
    1.12 + * 0x20 coreLoopStackPtr
    1.13 + *
    1.14 + * _VMSMasterEnv  offsets:
    1.15 + * 0x24 coreLoopStartPt
    1.16 + * 0x28 coreLoopEndPt
    1.17 + * 0x30 masterLock
    1.18 + */
    1.19 +//   SwitchToCoreLoop( animatingPr )
    1.20 +   asm volatile("movl         %0,       %%ebx;  \
    1.21 +                 movl         %1,       %%ecx;  \
    1.22 +                 movl      %%esp,  0x0c(%%ecx); \
    1.23 +                 movl      %%ebp,  0x10(%%ecx); \
    1.24 +                 movl 0x24(%%ebx),      %%eax;  \
    1.25 +                 movl 0x20(%%ecx),      %%esp;  \
    1.26 +                 movl 0x1c(%%ecx),      %%ebp;  \
    1.27 +                 jmp                    %%eax"  \
    1.28 +   /* outputs */ :                              \
    1.29 +   /* inputs  */ : "g"(_VMSMasterEnv), "g"(animatingPr)                     \
    1.30 +   /* clobber */ : "memory", "%eax", "%ebx", "%ecx", "%edx", "%edi", "%esi" \
    1.31 +                );
    1.32  
    1.33 -   SwitchToCoreLoop( animatingPr )
    1.34 +//  asm volatile("mov  %0,%%ebx;       \
    1.35 +                 mov  %%ebx, %%eax;   \
    1.36 +                 add  $0xc,  %%eax;   \
    1.37 +                 movl %%esp, (%%eax); \
    1.38 +                 mov  %%ebx, %%eax;   \
    1.39 +                 add  $0x10, %%eax;   \
    1.40 +                 movl %%ebp, (%%eax); \
    1.41 +                 movl %1, %%eax;      \
    1.42 +                 movl %2, %%esp;      \
    1.43 +                 movl %3, %%ebp;      \
    1.44 +                 jmp  %%eax"          \
    1.45 +   /* outputs */ :                    \
    1.46 +   /* inputs  */ : "g"(animatingPr), "g" (jmpPt), "g" (coreLoopStackPtr), \
    1.47 +                   "g" (coreLoopFramePtr) \
    1.48 +   /* clobber */ : "memory", "%eax", "%ebx", "%ecx", "%edx", "%edi", "%esi" \
    1.49 +                );
    1.50  
    1.51     //=======================================================================
    1.52  ResumePt: