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149 lines
3.3 KiB
149 lines
3.3 KiB
/*[
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lxs.c
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LOCAL CHAR SccsID[]="@(#)lxs.c 1.5 02/09/94";
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LDS, LES, LGS, LGS and LSS (ie LxS) CPU Functions.
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--------------------------------------------------
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]*/
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#include <insignia.h>
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#include <host_def.h>
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#include <xt.h>
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#include <c_main.h>
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#include <c_addr.h>
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#include <c_bsic.h>
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#include <c_prot.h>
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#include <c_seg.h>
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#include <c_stack.h>
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#include <c_xcptn.h>
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#include <c_reg.h>
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#include <lxs.h>
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#include <mov.h>
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/*
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=====================================================================
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EXTERNAL ROUTINES START HERE
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=====================================================================
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*/
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/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
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/* Load Full Pointer to DS segment register:general register pair. */
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/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
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GLOBAL VOID
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LDS
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#ifdef ANSI
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(
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IU32 *pop1, /* Pntr to dst(offset) operand */
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IU32 op2[2] /* src(offset:selector pair) operand */
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)
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#else
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(pop1, op2)
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IU32 *pop1;
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IU32 op2[2];
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#endif
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{
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/* load segment selector first */
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MOV_SR((IU32)DS_REG, op2[1]);
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/* then (if it works) load offset */
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*pop1 = op2[0];
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}
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/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
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/* Load Full Pointer to ES segment register:general register pair. */
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/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
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GLOBAL VOID
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LES
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#ifdef ANSI
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(
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IU32 *pop1, /* Pntr to dst(offset) operand */
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IU32 op2[2] /* src(offset:selector pair) operand */
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)
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#else
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(pop1, op2)
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IU32 *pop1;
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IU32 op2[2];
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#endif
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{
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/* load segment selector first */
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MOV_SR((IU32)ES_REG, op2[1]);
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/* then (if it works) load offset */
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*pop1 = op2[0];
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}
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/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
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/* Load Full Pointer to FS segment register:general register pair. */
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/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
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GLOBAL VOID
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LFS
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#ifdef ANSI
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(
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IU32 *pop1, /* Pntr to dst(offset) operand */
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IU32 op2[2] /* src(offset:selector pair) operand */
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)
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#else
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(pop1, op2)
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IU32 *pop1;
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IU32 op2[2];
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#endif
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{
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/* load segment selector first */
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MOV_SR((IU32)FS_REG, op2[1]);
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/* then (if it works) load offset */
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*pop1 = op2[0];
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}
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/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
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/* Load Full Pointer to GS segment register:general register pair. */
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/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
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GLOBAL VOID
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LGS
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#ifdef ANSI
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(
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IU32 *pop1, /* Pntr to dst(offset) operand */
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IU32 op2[2] /* src(offset:selector pair) operand */
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)
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#else
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(pop1, op2)
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IU32 *pop1;
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IU32 op2[2];
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#endif
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{
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/* load segment selector first */
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MOV_SR((IU32)GS_REG, op2[1]);
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/* then (if it works) load offset */
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*pop1 = op2[0];
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}
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/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
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/* Load Full Pointer to SS segment register:general register pair. */
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/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
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GLOBAL VOID
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LSS
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#ifdef ANSI
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(
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IU32 *pop1, /* Pntr to dst(offset) operand */
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IU32 op2[2] /* src(offset:selector pair) operand */
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)
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#else
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(pop1, op2)
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IU32 *pop1;
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IU32 op2[2];
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#endif
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{
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/* load segment selector first */
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MOV_SR((IU32)SS_REG, op2[1]);
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/* then (if it works) load offset */
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*pop1 = op2[0];
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}
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