| 1 | #include "syslib.h"
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| 2 |
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| 3 | PUBLIC int sys_vircopy(src_proc, src_seg, src_vir,
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| 4 | dst_proc, dst_seg, dst_vir, bytes)
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| 5 | int src_proc; /* source process */
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| 6 | int src_seg; /* source memory segment */
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| 7 | vir_bytes src_vir; /* source virtual address */
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| 8 | int dst_proc; /* destination process */
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| 9 | int dst_seg; /* destination memory segment */
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| 10 | vir_bytes dst_vir; /* destination virtual address */
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| 11 | phys_bytes bytes; /* how many bytes */
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| 12 | {
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| 13 | /* Transfer a block of data. The source and destination can each either be a
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| 14 | * process number or SELF (to indicate own process number). Virtual addresses
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| 15 | * are offsets within LOCAL_SEG (text, stack, data), REMOTE_SEG, or BIOS_SEG.
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| 16 | */
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| 17 |
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| 18 | message copy_mess;
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| 19 |
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| 20 | if (bytes == 0L) return(OK);
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| 21 | copy_mess.CP_SRC_ENDPT = src_proc;
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| 22 | copy_mess.CP_SRC_SPACE = src_seg;
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| 23 | copy_mess.CP_SRC_ADDR = (long) src_vir;
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| 24 | copy_mess.CP_DST_ENDPT = dst_proc;
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| 25 | copy_mess.CP_DST_SPACE = dst_seg;
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| 26 | copy_mess.CP_DST_ADDR = (long) dst_vir;
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| 27 | copy_mess.CP_NR_BYTES = (long) bytes;
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| 28 | return(_taskcall(SYSTASK, SYS_VIRCOPY, ©_mess));
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| 29 | }
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