; Macroinstructions for defining data structures
macro struct name
{ fields@struct equ name
match child parent, name \{ fields@struct equ child,fields@\#parent \}
sub@struct equ
struc db [val] \{ \common fields@struct equ fields@struct,.,db,<val> \}
struc dw [val] \{ \common fields@struct equ fields@struct,.,dw,<val> \}
struc du [val] \{ \common fields@struct equ fields@struct,.,du,<val> \}
struc dd [val] \{ \common fields@struct equ fields@struct,.,dd,<val> \}
struc dp [val] \{ \common fields@struct equ fields@struct,.,dp,<val> \}
struc dq [val] \{ \common fields@struct equ fields@struct,.,dq,<val> \}
struc dt [val] \{ \common fields@struct equ fields@struct,.,dt,<val> \}
struc rb count \{ fields@struct equ fields@struct,.,db,count dup (?) \}
struc rw count \{ fields@struct equ fields@struct,.,dw,count dup (?) \}
struc rd count \{ fields@struct equ fields@struct,.,dd,count dup (?) \}
struc rp count \{ fields@struct equ fields@struct,.,dp,count dup (?) \}
struc rq count \{ fields@struct equ fields@struct,.,dq,count dup (?) \}
struc rt count \{ fields@struct equ fields@struct,.,dt,count dup (?) \}
macro db [val] \{ \common \local anonymous
fields@struct equ fields@struct,anonymous,db,<val> \}
macro dw [val] \{ \common \local anonymous
fields@struct equ fields@struct,anonymous,dw,<val> \}
macro du [val] \{ \common \local anonymous
fields@struct equ fields@struct,anonymous,du,<val> \}
macro dd [val] \{ \common \local anonymous
fields@struct equ fields@struct,anonymous,dd,<val> \}
macro dp [val] \{ \common \local anonymous
fields@struct equ fields@struct,anonymous,dp,<val> \}
macro dq [val] \{ \common \local anonymous
fields@struct equ fields@struct,anonymous,dq,<val> \}
macro dt [val] \{ \common \local anonymous
fields@struct equ fields@struct,anonymous,dt,<val> \}
macro rb count \{ \local anonymous
fields@struct equ fields@struct,anonymous,db,count dup (?) \}
macro rw count \{ \local anonymous
fields@struct equ fields@struct,anonymous,dw,count dup (?) \}
macro rd count \{ \local anonymous
fields@struct equ fields@struct,anonymous,dd,count dup (?) \}
macro rp count \{ \local anonymous
fields@struct equ fields@struct,anonymous,dp,count dup (?) \}
macro rq count \{ \local anonymous
fields@struct equ fields@struct,anonymous,dq,count dup (?) \}
macro rt count \{ \local anonymous
fields@struct equ fields@struct,anonymous,dt,count dup (?) \}
macro union \{ fields@struct equ fields@struct,,union,<
sub@struct equ union \}
macro struct \{ fields@struct equ fields@struct,,substruct,<
sub@struct equ substruct \}
virtual at 0 }
macro ends
{ match , sub@struct \{ restruc db,dw,du,dd,dp,dq,dt
restruc rb,rw,rd,rp,rq,rt
purge db,dw,du,dd,dp,dq,dt
purge rb,rw,rd,rp,rq,rt
purge union,struct
match name=,fields,fields@struct \\{ fields@struct equ
make@struct name,fields
fields@\\#name equ fields \\}
end virtual \}
match any, sub@struct \{ fields@struct equ fields@struct> \}
restore sub@struct }
macro make@struct name,[field,type,def]
{ common
if $
display 'Error: definition of ',`name,' contains illegal instructions.',0Dh,0Ah
err
end if
local define
define equ name
forward
local sub
match , field \{ make@substruct type,name,sub def
define equ define,.,sub, \}
match any, field \{ define equ define,.#field,type,<def> \}
common
match fields, define \{ define@struct fields \} }
macro define@struct name,[field,type,def]
{ common
local list
list equ
forward
if ~ field eq .
name#field type def
sizeof.#name#field = $ - name#field
else
rb sizeof.#type
end if
local value
match any, list \{ list equ list, \}
list equ list <value>
common
sizeof.#name = $
restruc name
match values, list \{
struc name value \\{
match any, fields@struct \\\{ fields@struct equ fields@struct,.,name,<values> \\\}
match , fields@struct \\\{ label .
forward
match , value \\\\{ field type def \\\\}
match any, value \\\\{ field type value
if ~ field eq .
rb sizeof.#name#field - ($-field)
end if \\\\}
common \\\} \\} \} }
macro enable@substruct
{ macro make@substruct substruct,parent,name,[field,type,def]
\{ \common
\local define
define equ parent,name
\forward
\local sub
match , field \\{ match any, type \\\{ enable@substruct
make@substruct type,name,sub def
purge make@substruct
define equ define,.,sub, \\\} \\}
match any, field \\{ define equ define,.\#field,type,<def> \\}
\common
match fields, define \\{ define@\#substruct fields \\} \} }
enable@substruct
macro define@union parent,name,[field,type,def]
{ common
virtual at 0
forward
if ~ field eq .
virtual at 0
parent#field type def
sizeof.#parent#field = $ - parent#field
end virtual
if sizeof.#parent#field > $
rb sizeof.#parent#field - $
end if
else if sizeof.#type > $
rb sizeof.#type - $
end if
common
sizeof.#name = $
end virtual
struc name [value] \{ \common
label .\#name
last@union equ
forward
match any, last@union \\{ virtual at .\#name
field type def
end virtual \\}
match , last@union \\{ match , value \\\{ field type def \\\}
match any, value \\\{ field type value \\\} \\}
last@union equ field
common rb sizeof.#name - ($ - .\#name) \} }
macro define@substruct parent,name,[field,type,def]
{ common
virtual at 0
forward
if ~ field eq .
parent#field type def
sizeof.#parent#field = $ - parent#field
else
rb sizeof.#type
end if
local value
common
sizeof.#name = $
end virtual
struc name value \{
label .\#name
forward
match , value \\{ field type def \\}
match any, value \\{ field type value
if ~ field eq .
rb sizeof.#parent#field - ($-field)
end if \\}
common \} }