; 7zAsm.asm -- ASM macros
; 2022-05-16 : Igor Pavlov : Public domain
; UASM can require these changes
; OPTION FRAMEPRESERVEFLAGS:ON
; OPTION PROLOGUE:NONE
; OPTION EPILOGUE:NONE
ifdef @wordsize
; @wordsize is defined only in JWASM and ASMC and is not defined in MASM
; @wordsize eq 8 for 64-bit x64
; @wordsize eq 2 for 32-bit x86
if @wordsize eq 8
x64 equ 1
endif
else
ifdef RAX
x64 equ 1
endif
endif
ifdef x64
IS_X64 equ 1
else
IS_X64 equ 0
endif
ifdef ABI_LINUX
IS_LINUX equ 1
else
IS_LINUX equ 0
endif
ifndef x64
; Use ABI_CDECL for x86 (32-bit) only
; if ABI_CDECL is not defined, we use fastcall abi
ifdef ABI_CDECL
IS_CDECL equ 1
else
IS_CDECL equ 0
endif
endif
OPTION PROLOGUE:NONE
OPTION EPILOGUE:NONE
MY_ASM_START macro
ifdef x64
.code
else
.386
.model flat
SEVENZ SEGMENT PARA PUBLIC 'CODE'
endif
endm
MY_PROC macro name:req, numParams:req
align 16
proc_numParams = numParams
if (IS_X64 gt 0)
proc_name equ name
elseif (IS_LINUX gt 0)
proc_name equ name
elseif (IS_CDECL gt 0)
proc_name equ @CatStr(_,name)
else
proc_name equ @CatStr(@,name,@, %numParams * 4)
endif
proc_name PROC
endm
MY_ENDP macro
if (IS_X64 gt 0)
ret
elseif (IS_CDECL gt 0)
ret
elseif (proc_numParams LT 3)
ret
else
ret (proc_numParams - 2) * 4
endif
proc_name ENDP
endm
ifdef x64
REG_SIZE equ 8
REG_LOGAR_SIZE equ 3
else
REG_SIZE equ 4
REG_LOGAR_SIZE equ 2
endif
x0 equ EAX
x1 equ ECX
x2 equ EDX
x3 equ EBX
x4 equ ESP
x5 equ EBP
x6 equ ESI
x7 equ EDI
x0_W equ AX
x1_W equ CX
x2_W equ DX
x3_W equ BX
x5_W equ BP
x6_W equ SI
x7_W equ DI
x0_L equ AL
x1_L equ CL
x2_L equ DL
x3_L equ BL
x0_H equ AH
x1_H equ CH
x2_H equ DH
x3_H equ BH
ifdef x64
x5_L equ BPL
x6_L equ SIL
x7_L equ DIL
r0 equ RAX
r1 equ RCX
r2 equ RDX
r3 equ RBX
r4 equ RSP
r5 equ RBP
r6 equ RSI
r7 equ RDI
x8 equ r8d
x9 equ r9d
x10 equ r10d
x11 equ r11d
x12 equ r12d
x13 equ r13d
x14 equ r14d
x15 equ r15d
else
r0 equ x0
r1 equ x1
r2 equ x2
r3 equ x3
r4 equ x4
r5 equ x5
r6 equ x6
r7 equ x7
endif
ifdef x64
ifdef ABI_LINUX
MY_PUSH_2_REGS macro
push r3
push r5
endm
MY_POP_2_REGS macro
pop r5
pop r3
endm
endif
endif
MY_PUSH_4_REGS macro
push r3
push r5
push r6
push r7
endm
MY_POP_4_REGS macro
pop r7
pop r6
pop r5
pop r3
endm
; for fastcall and for WIN-x64
REG_PARAM_0_x equ x1
REG_PARAM_0 equ r1
REG_PARAM_1_x equ x2
REG_PARAM_1 equ r2
ifndef x64
; for x86-fastcall
REG_ABI_PARAM_0_x equ REG_PARAM_0_x
REG_ABI_PARAM_0 equ REG_PARAM_0
REG_ABI_PARAM_1_x equ REG_PARAM_1_x
REG_ABI_PARAM_1 equ REG_PARAM_1
else
; x64
if (IS_LINUX eq 0)
; for WIN-x64:
REG_PARAM_2_x equ x8
REG_PARAM_2 equ r8
REG_PARAM_3 equ r9
REG_ABI_PARAM_0_x equ REG_PARAM_0_x
REG_ABI_PARAM_0 equ REG_PARAM_0
REG_ABI_PARAM_1_x equ REG_PARAM_1_x
REG_ABI_PARAM_1 equ REG_PARAM_1
REG_ABI_PARAM_2_x equ REG_PARAM_2_x
REG_ABI_PARAM_2 equ REG_PARAM_2
REG_ABI_PARAM_3 equ REG_PARAM_3
else
; for LINUX-x64:
REG_LINUX_PARAM_0_x equ x7
REG_LINUX_PARAM_0 equ r7
REG_LINUX_PARAM_1_x equ x6
REG_LINUX_PARAM_1 equ r6
REG_LINUX_PARAM_2 equ r2
REG_LINUX_PARAM_3 equ r1
REG_LINUX_PARAM_4_x equ x8
REG_LINUX_PARAM_4 equ r8
REG_LINUX_PARAM_5 equ r9
REG_ABI_PARAM_0_x equ REG_LINUX_PARAM_0_x
REG_ABI_PARAM_0 equ REG_LINUX_PARAM_0
REG_ABI_PARAM_1_x equ REG_LINUX_PARAM_1_x
REG_ABI_PARAM_1 equ REG_LINUX_PARAM_1
REG_ABI_PARAM_2 equ REG_LINUX_PARAM_2
REG_ABI_PARAM_3 equ REG_LINUX_PARAM_3
REG_ABI_PARAM_4_x equ REG_LINUX_PARAM_4_x
REG_ABI_PARAM_4 equ REG_LINUX_PARAM_4
REG_ABI_PARAM_5 equ REG_LINUX_PARAM_5
MY_ABI_LINUX_TO_WIN_2 macro
mov r2, r6
mov r1, r7
endm
MY_ABI_LINUX_TO_WIN_3 macro
mov r8, r2
mov r2, r6
mov r1, r7
endm
MY_ABI_LINUX_TO_WIN_4 macro
mov r9, r1
mov r8, r2
mov r2, r6
mov r1, r7
endm
endif ; IS_LINUX
MY_PUSH_PRESERVED_ABI_REGS macro
if (IS_LINUX gt 0)
MY_PUSH_2_REGS
else
MY_PUSH_4_REGS
endif
push r12
push r13
push r14
push r15
endm
MY_POP_PRESERVED_ABI_REGS macro
pop r15
pop r14
pop r13
pop r12
if (IS_LINUX gt 0)
MY_POP_2_REGS
else
MY_POP_4_REGS
endif
endm
endif ; x64
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