Initial import of native hack for x86

amxmodx/natives-x86.asm

@@ -0,0 +1,94 @@
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+; (C)2005 by David "BAILOPAN" Anderson 			 ;
+; register_native functions for x86    			 ;;;;;;
+; Based on the concept by Julien "dJeyL" Laurent      ;
+; Thanks to T(+)rget for pushing me to implement this ;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;;Licensed under the GNU General Public License, version 2
+;;This is a portion of AMX Mod X 
+;; and is maintained by the AMX Mod X development team.
+
+;;Initializes the global variable
+
+global amxx_DynaInit, _amxx_DynaInit
+;void amxx_DynaInit(void *ptr);
+amxx_DynaInit:
+_amxx_DynaInit:
+	push	ebp
+	mov		ebp, esp
+	
+	mov		eax, [ebp+8]		;get pointer
+	mov		[GLOBAL_GATE], eax	;store
+	
+	mov		eax, 1
+	pop		ebp
+	ret
+	
+;;Assembles the gateway function
+global amxx_DynaMake, _amxx_DynaMake
+;int amxx_DynaMake(char *buffer, int id);
+amxx_DynaMake:
+_amxx_DynaMake:
+	push	ebp
+	mov		ebp, esp
+	
+	push	edi
+	push	esi
+	
+	mov		edi, [ebp+8]	;buffer
+	mov		esi, _amxx_DynaFuncStart
+	mov		ecx, _amxx_DynaFuncEnd - _amxx_DynaFuncStart
+	cld		;clear direction flag (just in case)
+	rep		movsb
+	
+	mov		edi, [ebp+8]	;get buffer again
+	;align us to mov eax, 1234
+	add		edi, _amxx_DynaMoveOffset + 1
+	mov		eax, [ebp+12]
+	mov		[edi], eax
+	
+	pop		esi
+	pop		edi
+	
+	mov		eax, 1
+	pop		ebp
+	ret
+
+;;The gateway function we will re-assemble
+;; This is similar to dJeyL's but a tad more elegant, as it's written in pure assembly
+;; and NASM > GAS :')
+global amxx_DynaFunc, _amxx_DynaFunc
+;int amxx_DynaFunc(AMX *amx, cell *params);
+amxx_DynaFunc:
+_amxx_DynaFunc:
+_amxx_DynaFuncStart:
+	push	ebp
+	mov		ebp, esp
+	
+	;we're given an amx and params... we're also hardcoded for this though:
+_amxx_DynaMoveOffset:
+	mov		eax, 12345678h		;this old trick, we'll move in the real pointer in a bit.
+	push	dword [ebp+12]		;push params
+	push	dword [ebp+8]		;push amx
+	push	eax					;push the id
+	call	[GLOBAL_GATE]		;pass through teh global gateway.
+	
+	pop		ebp
+	ret
+_amxx_DynaFuncEnd:
+
+;;Just returns the buffer size required
+global _amxx_DynaCodesize, amxx_DynaCodesize
+;int amxx_DynaCodesize()
+amxx_DynaCodesize:
+_amxx_DynaCodesize:
+	push	ebp
+	mov		ebp, esp
+	
+	mov		eax, _amxx_DynaFuncEnd - _amxx_DynaFuncStart
+	
+	pop		ebp
+	ret
+	
+GLOBAL_GATE		DD		0