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Diffstat (limited to 'contrib/syslinux-4.02/core/macros.inc')
| -rw-r--r-- | contrib/syslinux-4.02/core/macros.inc | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/core/macros.inc b/contrib/syslinux-4.02/core/macros.inc new file mode 100644 index 0000000..e3aedca --- /dev/null +++ b/contrib/syslinux-4.02/core/macros.inc @@ -0,0 +1,116 @@ +;; ----------------------------------------------------------------------- +;; +;; Copyright 1994-2008 H. Peter Anvin - All Rights Reserved +;; Copyright 2009 Intel Corporation; author: H. Peter Anvin +;; +;; This program is free software; you can redistribute it and/or modify +;; it under the terms of the GNU General Public License as published by +;; the Free Software Foundation, Inc., 53 Temple Place Ste 330, +;; Boston MA 02111-1307, USA; either version 2 of the License, or +;; (at your option) any later version; incorporated herein by reference. +;; +;; ----------------------------------------------------------------------- + +;; +;; macros.inc +;; +;; Convenient macros +;; + +%ifndef _MACROS_INC +%define _MACROS_INC + +; +; Identify the module we're compiling; the "correct" should be defined +; in the module itself to 1 +; +%ifdef IS_SYSLINUX + %define MY_NAME 'SYSLINUX' +%else + %define IS_SYSLINUX 0 +%endif +%ifdef IS_PXELINUX + %define MY_NAME 'PXELINUX' +%else + %define IS_PXELINUX 0 +%endif +%ifdef IS_ISOLINUX + %define MY_NAME 'ISOLINUX' +%else + %define IS_ISOLINUX 0 +%endif +%ifdef IS_EXTLINUX + %define MY_NAME 'EXTLINUX' +%else + %define IS_EXTLINUX 0 +%endif + +; +; Macros similar to res[bwd], but which works in the code segment (after +; section .text16) or the data segment (section .data16) +; +%macro zb 1.nolist + times %1 db 0 +%endmacro + +%macro zw 1.nolist + times %1 dw 0 +%endmacro + +%macro zd 1.nolist + times %1 dd 0 +%endmacro + +; +; Align with zero bytes in a progbits segment +; +%macro alignz 1.nolist + times (((%1) - (($-$$) % (%1))) % (%1)) db 0 +%endmacro + +; +; Macro to emit an unsigned decimal number as a string +; +%macro asciidec 1.nolist + %ifndef DEPEND ; Not safe for "depend" + %push asciidec + %assign %$v %1 + %if %$v == 0 + db '0' + %else + %assign %$dcount 0 + %assign %$n %$v + %assign %$d 1 + %rep 20 + %if %$n != 0 + %assign %$dcount %$dcount + 1 + %assign %$n %$n / 10 + %assign %$d %$d * 10 + %endif + %endrep + %rep %$dcount + %assign %$d %$d / 10 + db ((%$v / %$d) % 10) + '0' + %endrep + %endif + %pop + %endif +%endmacro + +; +; Macros for network byte order of constants +; +%define htons(x) ( ( ((x) & 0FFh) << 8 ) + ( ((x) & 0FF00h) >> 8 ) ) +%define ntohs(x) htons(x) +%define htonl(x) ( ( ((x) & 0FFh) << 24) + ( ((x) & 0FF00h) << 8 ) + ( ((x) & 0FF0000h) >> 8 ) + ( ((x) & 0FF000000h) >> 24) ) +%define ntohl(x) htonl(x) + +; +; ASCII +; +CR equ 13 ; Carriage Return +LF equ 10 ; Line Feed +FF equ 12 ; Form Feed +BS equ 8 ; Backspace + +%endif ; _MACROS_INC |