Add FreeRTOS heap4 intro card

build/task03_heap_init/task03_heap_init.s

@@ -0,0 +1,74 @@
+	.file	"task03_heap_init.c"
+	.option nopic
+	.attribute arch, "rv32i2p1_zicsr2p0_zifencei2p0"
+	.attribute unaligned_access, 0
+	.attribute stack_align, 16
+	.text
+	.align	2
+	.globl	main
+	.type	main, @function
+main:
+	lla	a2,.LANCHOR0
+	andi	a4,a2,7
+	mv	a5,a2
+	beq	a4,zero,.L2
+	andi	a5,a2,-8
+	addi	a5,a5,8
+.L2:
+	lla	a3,.LANCHOR0+160
+	sub	a3,a3,a5
+	addi	a4,a5,-8
+	andi	a3,a3,-8
+	add	a4,a4,a3
+	sw	a4,end_marker,a3
+	sw	zero,0(a4)
+	sw	zero,4(a4)
+	sw	a4,0(a5)
+	sub	a3,a4,a5
+	sw	a3,4(a5)
+	lla	a1,start
+	sw	a5,0(a1)
+	sw	zero,4(a1)
+	sub	a5,a5,a2
+	sw	a5,g_aligned_offset,a2
+	sw	a3,g_initial_free_size,a5
+	lw	a5,0(a4)
+	seqz	a5,a5
+	sw	a5,g_end_is_last,a4
+	li	a0,0
+	ret
+	.size	main, .-main
+	.globl	g_end_is_last
+	.globl	g_aligned_offset
+	.globl	g_initial_free_size
+	.bss
+	.align	2
+	.set	.LANCHOR0,. + 0
+	.type	heap_area, @object
+	.size	heap_area, 168
+heap_area:
+	.zero	168
+	.section	.sbss,"aw",@nobits
+	.align	2
+	.type	g_end_is_last, @object
+	.size	g_end_is_last, 4
+g_end_is_last:
+	.zero	4
+	.type	g_aligned_offset, @object
+	.size	g_aligned_offset, 4
+g_aligned_offset:
+	.zero	4
+	.type	g_initial_free_size, @object
+	.size	g_initial_free_size, 4
+g_initial_free_size:
+	.zero	4
+	.type	end_marker, @object
+	.size	end_marker, 4
+end_marker:
+	.zero	4
+	.type	start, @object
+	.size	start, 8
+start:
+	.zero	8
+	.ident	"GCC: (15.2.0-23) 15.2.0"
+	.section	.note.GNU-stack,"",@progbits