Idea Macro Smart Regs

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Roman

Joined: 21 Apr 2012
Posts: 1792

Roman 22 Apr 2021, 07:29

I write on Fasmw 1.73

I want do macro auto regs or mem.
Lets say macro SmartReg

Code:

Sreg 10 ;do mov r13,10. And do EQU regNum+1
Sreg 20 ;do mov r14,20
Smov  rax ;do mov rax,r14
Sreg 30 ;do mov r15,30
Smov  [rdx] ;do mov [rdx],r15
Sreg 40 ;do mov [r16],40  to mem r16
Sreg 50 ;do mov [r17],50  to mem r17
Sreg 60 ;do mov [r18],60  to mem r18
Sreg 40 ;do mov [r19],40  to mem r19
Sreg 80 ;do mov [r20],80  to mem r20
Smov  rax ;do mov rax,[r20]
EndReg ;set EQU regNum-1
Smov  rcx ;do mov rcx,[r19]

22 Apr 2021, 07:29

DimonSoft

Joined: 03 Mar 2010
Posts: 1228
Location: Belarus

DimonSoft 23 Apr 2021, 12:10

Any example of real world task where this could be useful would be great.

Also the logic behind the macro is unclear from your example.

23 Apr 2021, 12:10

Overclick

Joined: 11 Jul 2020
Posts: 669
Location: Ukraine

Overclick 23 Apr 2021, 14:37

Interesting idea to use some kind of own stack, but do not touch the registers.
It can be implemented as macros:
mypush <something>
mypop <something>
Without any worries about stack address or operations quantity. Without size limits of original push-pop. It can be some cyclic buffer as well

23 Apr 2021, 14:37

Roman

Joined: 21 Apr 2012
Posts: 1792

Roman 24 Apr 2021, 04:54

I try do this. Work ok

Code:

r16 EQU [memR16]
r17 EQU [memR17]
r18 EQU [memR18]
macro SmrtReg chV { mov FirstSreg,chV
                  FirstSreg equ FirstSreg + 1 }
.data 
        memR16 dq 0
        memR17 dq 0
        memR18 dq 0

.code
        FirstSreg equ r13
        mov     eax,dword r16 ;do mov eax,dword [memR16]
        SmrtReg 10  ;this ok do mov     r13, 10
        SmrtReg 10  ;this get me error: r13+1

But my problem increase FirstSreg. Fasm get me error: r13+1
I want get r14 but not r13+1

24 Apr 2021, 04:54

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