/* macros.inc * * This file assists the board independent startup code * by initializing the chip-select channels to * reflect the proper memory configuration. * * NOTE: No stack has been established when this routine * is invoked. It returns to start.s through ldsegs * * Submitted by: * * Erik Ivanenko * University of Toronto * erik.ivanenko@utoronto.ca * * The license and distribution terms for this file may be * found in the file LICENSE in this distribution or at * http://www.rtems.com/license/LICENSE. * * $Id: macros.inc,v 1.1.8.1 2003/09/04 18:44:09 joel Exp $ */ .set GDT_CODE_PTR , 0x08 .set GDT_DATA_PTR , 0x10 .set BOARD_SELECT , 0x301 .set BOARD_DATA , 0x302 .set BOARD_LATCH , 0x303 #define SetExRegByte(_register,_value) \ movb $ ## _value, al; \ movw $ ## _register, dx; \ outb al, dx #define SetExRegWord(_register,_value) \ movw $ ## _value, ax; \ movw $ ## _register, dx ; \ outw ax, dx #define DESC2(lim_0_15, bas_0_15, bas_16_23, access, gran, bas_24_31) \ .word lim_0_15 ; \ .word bas_0_15 ; \ .byte bas_16_23 ; \ .byte access ; \ .byte gran ; \ .byte bas_24_31 #define DESC3( _base, _limit) \ .word _limit ; \ .long _base /* THE GET_ACCESS IS CHANGED FROM 8E TO 9E */ #define INTERRUPT_GATE( _vector ) \ .word _vector ; \ .word GDT_CODE_PTR ; \ .byte 0x0 ; \ .byte 0x8E ; \ .word 0x0 #define rLOAD_INDEX( _selector, _segment_register) \ movl _selector , _segment_register ; \ addb al, ( eax ) #define rLOAD_SEGMENT( _reg, _segment_register) \ mov _reg , _segment_register ; \ /* #define rLOAD_SEGMENT( _reg, _segment_register) \ .code16 ; \ mov _reg , _segment_register ; \ .code32 */ #define pLOAD_SEGMENT( _selector, _segment_register) \ movl $ ## _selector , eax ; .code16 ; \ mov ax, _segment_register ; .code32 /* #define MOVE_WORD( _immed32, _reg ) \ data16 ; \ movl _immed32, _reg */ #define MOVE_WORD( _immed32, _reg ) \ movw _immed32, _reg /* #define MOVE_IMMED_WORD( _immed32, _reg ) \ data16 ; \ mov $ ## _immed32, _reg #define CS_OFF( _cs_symbol, _reg ) \ data16 ; \ mov _cs_symbol, _reg ; \ data16 ;\ andl $0x000ffff, _reg #define _16_NOPS \ nop ; \ nop ; \ nop ; \ nop ; \ nop ; \ nop ; \ nop ; \ nop ; \ nop ; \ nop ; \ nop ; \ nop ; \ nop ; \ nop ; \ nop ; \ nop ; */
