fixed ti_Alloc(String/Equ) when alloc returns NULL. Also added attribute nonnull

Author: ZERICO2005

src/fileioc/fileioc.asm

@@ -101,17 +101,8 @@ ti_AllocEqu:
 	ld	iy, 0
 	add	iy, sp
 	ld	hl, (iy + 3)
-	ld	iy, (iy + 6)
 	push	hl
-	inc	hl
-	inc	hl
-	call	ti._indcall
-	pop	de
-	ld	(hl), e
-	inc	hl
-	ld	(hl), d
-	dec	hl
-	ret
+	jr	util_alloc_string_equ
 
 ;-------------------------------------------------------------------------------
 ti_AllocCplxList:
@@ -124,7 +115,6 @@ ti_AllocCplxList:
 	ld	iy, 0
 	add	iy, sp
 	ld	hl, (iy + 3)
-	ld	iy, (iy + 6)
 	push	hl
 	add	hl, hl
 	jr	util_alloc_var
@@ -140,7 +130,6 @@ ti_AllocList:
 	ld	iy, 0
 	add	iy, sp
 	ld	hl, (iy + 3)
-	ld	iy, (iy + 6)
 	push	hl
 	jr	util_alloc_var
 
@@ -153,15 +142,16 @@ ti_AllocMatrix:
 ;  sp + 9 : pointer to alloc routine
 ; return:
 ;  hl -> allocated space
-	ld	iy, 0
+	ld	iy, 3
 	add	iy, sp
-	ld	h, (iy + 3)
-	ld	l, (iy + 6)
-	ld	iy, (iy + 9)
+	ld	h, (iy + 0)
+	ld	l, (iy + 3)
 	push	hl
 	mlt	hl
 util_alloc_var:
 	call	ti.HLTimes9
+util_alloc_string_equ:
+	ld	iy, (iy + 6)
 	inc	hl
 	inc	hl
 	push	hl

src/fileioc/fileioc.h

@@ -87,11 +87,11 @@ extern "C" {
 #define ti_MallocEqu(len) ti_AllocEqu((len), malloc)
 
 /* @cond */
-string_t *ti_AllocString(unsigned len, void *(*malloc_routine)(size_t));
-list_t *ti_AllocList(unsigned dim, void *(*malloc_routine)(size_t));
-matrix_t *ti_AllocMatrix(uint8_t rows, uint8_t cols, void *(*malloc_routine)(size_t));
-cplx_list_t *ti_AllocCplxList(unsigned dim, void *(*malloc_routine)(size_t));
-equ_t *ti_AllocEqu(unsigned len, void *(*malloc_routine)(size_t));
+string_t *ti_AllocString(unsigned len, void *(*malloc_routine)(size_t)) __attribute__((__nonnull__(2)));
+list_t *ti_AllocList(unsigned dim, void *(*malloc_routine)(size_t)) __attribute__((__nonnull__(2)));
+matrix_t *ti_AllocMatrix(uint8_t rows, uint8_t cols, void *(*malloc_routine)(size_t)) __attribute__((__nonnull__(3)));
+cplx_list_t *ti_AllocCplxList(unsigned dim, void *(*malloc_routine)(size_t)) __attribute__((__nonnull__(2)));
+equ_t *ti_AllocEqu(unsigned len, void *(*malloc_routine)(size_t)) __attribute__((__nonnull__(2)));
 /* @endcond */
 
 /**