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Consolidated /docs into /pubs

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Jeff Parsons 2017-09-12 11:28:18 -07:00 • committed by Jeff Parsons
commit 71d117fa02
106 changed files with 350 additions and 317 deletions
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78
docs/x86/ops/LOADALL/macros.386.asm
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@ -1,78 +0,0 @@
;-----------------------------------------------------------------------------
;
; MACROS.386
;
; Copyright (c) 1991, 1995-Present Robert Collins
;
; You have my permission to copy and distribute this software for
; non-commercial purposes. Any commercial use of this software or
; source code is allowed, so long as the appropriate copyright
; attributions (to me) are intact, *AND* my email address is properly
; displayed.
;
; Basically, give me credit, where credit is due, and show my email
; address.
;
;-----------------------------------------------------------------------------
;
; Robert R. Collins email: rcollins@x86.org
;
;-----------------------------------------------------------------------------
;-----------------------------------------------------------------------------
; Macro definitions
;-----------------------------------------------------------------------------
Init_descriptor macro segment,offset,desc_name
push ax
push dx
push si
push es
mov ax,&segment ;; get segment name
mov es,ax ;; to form 24 bit address
mov si,&offset ;;
mov ax,es ; point to control block
xor dh,dh ; clear upper register
mov dl,ah ; build high byte of 32-bit address
shr dl,4 ; use only high nibble from (AX)
shl ax,4 ; strip high nibble from segment
add ax,si ; add the GDT offset to develop low word
adc dx,0 ; adjust high byte if carry from low
mov &desc_name.Base_A15_A00,ax ;; low word of address
mov &desc_name.Base_A23_A16,dl ;; high byte of address
mov &desc_name.Base_A31_A24,dh ;; high byte of linear address
pop es
pop si
pop dx
pop ax
endm
FARJMP MACRO destination,selector ; dynamic JMP FAR SEG:OFF
db 0eah ;; jmp instruction
dw offset destination ;; offset word
dw selector ;; segment selector word
endm
LONGJMP MACRO destination,selector ; dynamic JMP FAR SEG:OFF
db 0eah ;; jmp instruction
dd offset destination ;; offset word
dw selector ;; segment selector word
endm
IO_DELAY MACRO
out 0edh,ax
endm
LOADALL MACRO
db 0fh,07h
ENDM
PRINT_STRING MACRO MSG_NAME
mov ah,9
mov dx,offset MSG_NAME
int 21h
ENDM