SjASMPlus от z00m

[LW]

It's really irrelevant what are the national customs. The YYYY-MM-DD is technically superior to any other format, and I'm on my quest to change the world.

This is just your opinion

And I really need to wind down time spent on sjasmplus, I think it's now very stable and quite "mature" tool. I don't have any big plans for v1.x and I don't see myself committing to work on "v2.x" any time soon.

And this is your right

[Advertiser]

[Ped7g]

https://github.com/z00m128/sjasmplus...es/tag/v1.20.1

• new directives: SAVEAMSDOS, DEFDEVICE
• added "smart" SMC offset syntax: `value_addr+*: ld a,123`
• parse+ignore decimal numeric constants (for easier migration to Lua5.4)

[Ped7g]

https://github.com/z00m128/sjasmplus...es/tag/v1.20.2

• added optional second argument for DUP to have index variable
• option --exp will create file even when no EXPORT is used
• fixing variable name-clash when compiling against musl-clib
• LuaBridge updated, CMake and Makefile updated a bit
• minor bugfixes/improvements in parser in specific edge cases

[Bedazzle]

[*] added optional second argument for DUP to have index variable

Thanks specially for this one!

[0xDEAD]

Так и не понял, что это за index variable, и зачем она нужна.

[Ped7g]

Так и не понял, что это за index variable, и зачем она нужна.

  DUP 128, some_index
    DB some_index
  EDUP

will produce 128 bytes: 0,1,2,...,127
So you don't need to have own index=index+1 inside DUP to track counter.

[Biland]

	struct	MedikitVTab			/*виртуальная таблица для класса TMedikit*/
Metod		dw	#abcd		
Metod1		dw	fPick
	ends

	struct	TMedikit			/*класс*/
		dw	MyMedikitVTab		/инкапсуляция!!!/
Coord		dw	#1f00					;	X
		dw	#1f00					;	Y
Count		dw	55					;	Здоровье
	ends

			ORG	#9e00

MyMedikit		TMedikit	/*экземпляр класса TMedikit (объект MyMedikit) объект класса */
MyMedikitVTab		MedikitVTab

StartProg
			ld	bc,MyMedikit.+Coord
			nop
			ret

fPick			ret

Есть магия, как получить смещение адрес по метке в инкапсуляции MyMedikitVTab из объекта MyMedikit?:

ld	bc,MyMedikit.+Metod1

[Ped7g]

you mean something like this?

	struct	MedikitVTab			/*виртуальная таблица для класса TMedikit*/
Metod		dw	#abcd
Metod1		dw	fPick
	ends

	struct	TMedikit			/*класс*/
		dw	MyMedikitVTab		/*инкапсуляция!!!*/
Coord		dw	#1f00					;	X
		dw	#1f00					;	Y
Count		dw	55					;	Здоровье
	ends

			ORG	#9e00

MyMedikit		TMedikit	/*экземпляр класса TMedikit (объект MyMedikit) объект класса */
MyMedikitVTab		MedikitVTab

; DE = address of TMedikit instance
fPick:
        ld      hl,TMedikit.Count       ; offset of Count in TMedikit struct
        add     hl,de                   ; HL = MyMedikit.Count #9e06
        ; ...
        ret

; HL = object instance, BC = method offset in vtable
runVMetod:
        ld      de,(hl)         ; DE = MyMedikitVTab #9e08 ; fake ld e,(hl) : inc hl : ld d,(hl) : dec hl
        ex      de,hl
        add     hl,bc           ; HL = MyMedikitVTab.Metod1 #9e0a
        ld      a,(hl)
        inc     hl
        ld      h,(hl)
        ld      l,a             ; HL = fPick #9e0c, DE = MyMedikit #9e00
        jp      (hl)            ; jump to fPick

StartProg
        ld      hl,MyMedikit            ; HL = MyMedikit instance address #9e00
        ld      bc,MedikitVTab.Metod1   ; offset of Metod1 in MedikitVTab struct #0002
        call    runVMetod               ; `MyMedikit.Metod1();` alias `fPick(MyMedikit);`
        jr      $

also check listing with symbol table, or docs about structs, what values are available, you have all offsets, struct size and instance full addresses available at assembling time.
(sjasmplus --lst --lstlab=sort file.asm)

[Ped7g]

https://github.com/z00m128/sjasmplus...es/tag/v1.20.3

• added alias --define for -D
• added string-literals suffixes Z and C to add zero or set high bit of last char
• end of line backslash continues source line (limited support, not recommended)
• Lua: minor version upgrade to 5.4.6 (from 5.4.4)
• minor updates to Makefile

[Deadly]

мб кому пригодится VCode + sjasmplus