34 lines
909 B
C
34 lines
909 B
C
/* The system call implemented in this file:
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* m_type: SYS_MEM
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*
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* The parameters for this system call are:
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* m4_l1: MEM_CHUNK_BASE (memory base)
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* m4_l2: MEM_CHUNK_SIZE (memory size)
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* m4_l3: MEM_TOT_SIZE (total memory)
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*/
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#include "../kernel.h"
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#include "../system.h"
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/*===========================================================================*
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* do_mem *
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*===========================================================================*/
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PUBLIC int do_mem(m_ptr)
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register message *m_ptr; /* pointer to request message */
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{
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/* Return the base and size of the next chunk of memory. */
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struct memory *memp;
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for (memp = mem; memp < &mem[NR_MEMS]; ++memp) {
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m_ptr->MEM_CHUNK_BASE = memp->base;
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m_ptr->MEM_CHUNK_SIZE = memp->size;
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m_ptr->MEM_TOT_SIZE = tot_mem_size;
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memp->size = 0;
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if (m_ptr->MEM_CHUNK_SIZE != 0) break; /* found a chunk */
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}
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return(OK);
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}
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