source: bootcd/isolinux/syslinux-6.03/core/pmcall.inc

;;
;; pmcall.inc
;;
;; Macros for the stack frame set up by pm_call, assuming ebp is left
;; as the RM frame pointer.
;;

%ifndef PMCALL_INC
%define PMCALL_INC

%define RM_GS           word [ebp]
%define RM_FS           word [ebp+2]
%define RM_ES           word [ebp+4]
%define RM_DS           word [ebp+6]

%define RM_EDI          dword [ebp+8]
%define RM_DI           word [ebp+8]
%define RM_HDI          word [ebp+10]
%define RM_DIL          byte [ebp+8]
%define RM_DIH          byte [ebp+9]

%define RM_ESI          dword [ebp+12]
%define RM_SI           word [ebp+12]
%define RM_HSI          word [ebp+14]
%define RM_SIL          byte [ebp+12]
%define RM_SIH          byte [ebp+13]

%define RM_EBP          dword [ebp+16]
%define RM_BP           word [ebp+16]
%define RM_HBP          word [ebp+18]
%define RM_BPL          byte [ebp+16]
%define RM_BPH          byte [ebp+17]

%define RM_EBX          dword [ebp+24]
%define RM_BX           word [ebp+24]
%define RM_HBX          word [ebp+26]
%define RM_BL           byte [ebp+24]
%define RM_BH           byte [ebp+25]

%define RM_EDX          dword [ebp+28]
%define RM_DX           word [ebp+28]
%define RM_HDX          word [ebp+30]
%define RM_DL           byte [ebp+28]
%define RM_DH           byte [ebp+29]

%define RM_ECX          dword [ebp+32]
%define RM_CX           word [ebp+32]
%define RM_HCX          word [ebp+34]
%define RM_CL           byte [ebp+32]
%define RM_CH           byte [ebp+33]

%define RM_EAX          dword [ebp+36]
%define RM_AX           word [ebp+36]
%define RM_HAX          word [ebp+38]
%define RM_AL           byte [ebp+36]
%define RM_AH           byte [ebp+37]

%define RM_EFLAGS       dword [ebp+40]
%define RM_FLAGS        word [ebp+40]
%define RM_HFLAGS       word [ebp+42]
%define RM_FLAGSL       byte [ebp+40]
%define RM_FLAGSH       byte [ebp+41]

; Convenience macro to call a PM function
%macro  pm_call 1
        push dword %1
        call _pm_call
%endmacro

%endif ; PMCALL_INC