Add FreeRTOS heap4 intro card

build/task01_heap_map/task01_heap_map.s

@@ -0,0 +1,53 @@
+	.file	"task01_heap_map.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:
+	li	a5,8
+	sw	a5,g_header_size,a4
+	sw	a5,g_aligned_header_size,a4
+	li	a5,1
+	sw	a5,g_allocated_bit_set,a4
+	lla	a5,g_total_block_bytes
+	li	a4,24
+	sw	a4,0(a5)
+	lw	a5,0(a5)
+	addi	a5,a5,-8
+	sw	a5,g_user_bytes,a4
+	li	a0,0
+	ret
+	.size	main, .-main
+	.globl	g_total_block_bytes
+	.globl	g_user_bytes
+	.globl	g_allocated_bit_set
+	.globl	g_aligned_header_size
+	.globl	g_header_size
+	.section	.sbss,"aw",@nobits
+	.align	2
+	.type	g_total_block_bytes, @object
+	.size	g_total_block_bytes, 4
+g_total_block_bytes:
+	.zero	4
+	.type	g_user_bytes, @object
+	.size	g_user_bytes, 4
+g_user_bytes:
+	.zero	4
+	.type	g_allocated_bit_set, @object
+	.size	g_allocated_bit_set, 4
+g_allocated_bit_set:
+	.zero	4
+	.type	g_aligned_header_size, @object
+	.size	g_aligned_header_size, 4
+g_aligned_header_size:
+	.zero	4
+	.type	g_header_size, @object
+	.size	g_header_size, 4
+g_header_size:
+	.zero	4
+	.ident	"GCC: (15.2.0-23) 15.2.0"
+	.section	.note.GNU-stack,"",@progbits

build/task02_free_list/task02_free_list.s

@@ -0,0 +1,73 @@
+	.file	"task02_free_list.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:
+	addi	sp,sp,-32
+	addi	a5,sp,16
+	sw	a5,24(sp)
+	li	a5,32
+	sw	a5,28(sp)
+	addi	a5,sp,8
+	sw	a5,16(sp)
+	li	a5,80
+	sw	a5,20(sp)
+	sw	zero,8(sp)
+	li	a5,24
+	sw	a5,12(sp)
+	li	a4,0
+	add	a5,sp,a5
+.L2:
+	lw	a3,4(a5)
+	add	a4,a4,a3
+	lw	a5,0(a5)
+	bne	a5,zero,.L2
+	sw	a4,g_free_total,a5
+	li	a3,0
+	addi	a5,sp,24
+	j	.L4
+.L3:
+	lw	a5,0(a5)
+	beq	a5,zero,.L10
+.L4:
+	lw	a4,4(a5)
+	bgeu	a3,a4,.L3
+	mv	a3,a4
+	j	.L3
+.L10:
+	sw	a3,g_largest_free,a5
+	addi	a5,sp,24
+	li	a4,0
+.L5:
+	addi	a4,a4,1
+	lw	a5,0(a5)
+	bne	a5,zero,.L5
+	sw	a4,g_node_count,a5
+	li	a0,0
+	addi	sp,sp,32
+	jr	ra
+	.size	main, .-main
+	.globl	g_node_count
+	.globl	g_largest_free
+	.globl	g_free_total
+	.section	.sbss,"aw",@nobits
+	.align	2
+	.type	g_node_count, @object
+	.size	g_node_count, 4
+g_node_count:
+	.zero	4
+	.type	g_largest_free, @object
+	.size	g_largest_free, 4
+g_largest_free:
+	.zero	4
+	.type	g_free_total, @object
+	.size	g_free_total, 4
+g_free_total:
+	.zero	4
+	.ident	"GCC: (15.2.0-23) 15.2.0"
+	.section	.note.GNU-stack,"",@progbits

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

build/task04_alignment/task04_alignment.s

@@ -0,0 +1,47 @@
+	.file	"task04_alignment.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:
+	addi	sp,sp,-32
+	li	a5,16
+	sw	a5,g_request_1,a4
+	li	a5,24
+	sw	a5,g_request_9,a4
+	li	a5,32
+	sw	a5,g_request_17,a4
+	li	a5,7
+	sw	a5,g_address_delta,a4
+	li	a0,0
+	addi	sp,sp,32
+	jr	ra
+	.size	main, .-main
+	.globl	g_address_delta
+	.globl	g_request_17
+	.globl	g_request_9
+	.globl	g_request_1
+	.section	.sbss,"aw",@nobits
+	.align	2
+	.type	g_address_delta, @object
+	.size	g_address_delta, 4
+g_address_delta:
+	.zero	4
+	.type	g_request_17, @object
+	.size	g_request_17, 4
+g_request_17:
+	.zero	4
+	.type	g_request_9, @object
+	.size	g_request_9, 4
+g_request_9:
+	.zero	4
+	.type	g_request_1, @object
+	.size	g_request_1, 4
+g_request_1:
+	.zero	4
+	.ident	"GCC: (15.2.0-23) 15.2.0"
+	.section	.note.GNU-stack,"",@progbits

build/task05_malloc_first_fit/task05_malloc_first_fit.s

@@ -0,0 +1,95 @@
+	.file	"task05_malloc_first_fit.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	a4,.LANCHOR0
+	andi	a5,a4,7
+	beq	a5,zero,.L2
+	andi	a4,a4,-8
+	addi	a4,a4,8
+.L2:
+	mv	a5,a4
+	addi	a3,a4,120
+	sw	a3,end_marker,a2
+	sw	zero,120(a4)
+	sw	zero,4(a3)
+	sw	a3,0(a4)
+	li	a2,120
+	sw	a2,4(a4)
+	lla	a2,start
+	sw	a4,0(a2)
+	sw	zero,4(a2)
+	li	a1,31
+	j	.L5
+.L6:
+	mv	a5,a4
+.L5:
+	lw	a4,4(a5)
+	bgtu	a4,a1,.L7
+	lw	a4,0(a5)
+	mv	a2,a5
+	bne	a4,a3,.L6
+	li	a5,0
+	j	.L4
+.L7:
+	lw	a4,0(a5)
+	sw	a4,0(a2)
+	sw	zero,0(a5)
+	lw	a4,4(a5)
+	li	a3,-2147483648
+	or	a4,a4,a3
+	sw	a4,4(a5)
+	addi	a5,a5,8
+.L4:
+	snez	a4,a5
+	sw	a4,g_allocation_ok,a3
+	lw	a5,-4(a5)
+	slli	a5,a5,1
+	srli	a5,a5,1
+	sw	a5,g_allocated_size,a4
+	lw	a5,start
+	lw	a5,4(a5)
+	sw	a5,g_remaining_free,a4
+	li	a0,0
+	ret
+	.size	main, .-main
+	.globl	g_allocation_ok
+	.globl	g_remaining_free
+	.globl	g_allocated_size
+	.bss
+	.align	2
+	.set	.LANCHOR0,. + 0
+	.type	heap_area, @object
+	.size	heap_area, 136
+heap_area:
+	.zero	136
+	.section	.sbss,"aw",@nobits
+	.align	2
+	.type	g_allocation_ok, @object
+	.size	g_allocation_ok, 4
+g_allocation_ok:
+	.zero	4
+	.type	g_remaining_free, @object
+	.size	g_remaining_free, 4
+g_remaining_free:
+	.zero	4
+	.type	g_allocated_size, @object
+	.size	g_allocated_size, 4
+g_allocated_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

build/task06_split_block/task06_split_block.s

@@ -0,0 +1,117 @@
+	.file	"task06_split_block.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	a4,.LANCHOR0
+	andi	a5,a4,7
+	beq	a5,zero,.L2
+	andi	a4,a4,-8
+	addi	a4,a4,8
+.L2:
+	mv	a5,a4
+	addi	a3,a4,176
+	sw	a3,end_marker,a2
+	sw	zero,176(a4)
+	sw	zero,4(a3)
+	sw	a3,0(a4)
+	li	a2,176
+	sw	a2,4(a4)
+	lla	a2,start
+	sw	a4,0(a2)
+	sw	zero,4(a2)
+	li	a1,39
+	j	.L7
+.L10:
+	mv	a5,a4
+.L7:
+	lw	a4,4(a5)
+	bgtu	a4,a1,.L13
+	lw	a4,0(a5)
+	mv	a2,a5
+	bne	a4,a3,.L10
+	li	a5,0
+	j	.L6
+.L13:
+	addi	a4,a4,-40
+	li	a1,16
+	bleu	a4,a1,.L4
+	sw	a4,44(a5)
+	lw	a4,0(a5)
+	sw	a4,40(a5)
+	addi	a4,a5,40
+	sw	a4,0(a2)
+	li	a4,40
+	sw	a4,4(a5)
+.L5:
+	sw	zero,0(a5)
+	lw	a4,4(a5)
+	li	a2,-2147483648
+	or	a4,a4,a2
+	sw	a4,4(a5)
+	addi	a5,a5,8
+.L6:
+	lw	a5,-4(a5)
+	slli	a5,a5,1
+	srli	a5,a5,1
+	sw	a5,g_allocated_size,a4
+	lw	a5,start
+	lw	a4,4(a5)
+	sw	a4,g_split_free_size,a2
+	beq	a5,a3,.L11
+	li	a4,0
+.L9:
+	addi	a4,a4,1
+	lw	a5,0(a5)
+	bne	a5,a3,.L9
+.L8:
+	sw	a4,g_free_nodes,a5
+	li	a0,0
+	ret
+.L4:
+	lw	a4,0(a5)
+	sw	a4,0(a2)
+	j	.L5
+.L11:
+	li	a4,0
+	j	.L8
+	.size	main, .-main
+	.globl	g_free_nodes
+	.globl	g_split_free_size
+	.globl	g_allocated_size
+	.bss
+	.align	2
+	.set	.LANCHOR0,. + 0
+	.type	heap_area, @object
+	.size	heap_area, 200
+heap_area:
+	.zero	200
+	.section	.sbss,"aw",@nobits
+	.align	2
+	.type	g_free_nodes, @object
+	.size	g_free_nodes, 4
+g_free_nodes:
+	.zero	4
+	.type	g_split_free_size, @object
+	.size	g_split_free_size, 4
+g_split_free_size:
+	.zero	4
+	.type	g_allocated_size, @object
+	.size	g_allocated_size, 4
+g_allocated_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

build/task07_free_insert/task07_free_insert.s

@@ -0,0 +1,116 @@
+	.file	"task07_free_insert.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	a5,.LANCHOR0
+	lla	a4,.LANCHOR0+176
+	sw	a4,end_marker,a3
+	sw	a5,start,a3
+	lla	a3,.LANCHOR0+128
+	sw	a3,0(a5)
+	sw	a4,128(a5)
+	sw	zero,176(a5)
+	li	a4,40
+	sw	a4,4(a5)
+	li	a4,48
+	sw	a4,132(a5)
+	sw	zero,180(a5)
+	li	a4,32
+	sw	a4,68(a5)
+	lla	a5,start
+	lla	a3,.LANCHOR0+64
+.L2:
+	mv	a4,a5
+	lw	a5,0(a5)
+	bltu	a5,a3,.L2
+	lla	a3,.LANCHOR0
+	sw	a5,64(a3)
+	lla	a5,.LANCHOR0+64
+	sw	a5,0(a4)
+	lw	a5,start
+	beq	a5,a3,.L16
+	sw	zero,g_order_ok,a4
+	lla	a4,.LANCHOR0+176
+	beq	a5,a4,.L5
+.L9:
+	mv	a4,a5
+	li	a3,0
+	lla	a2,.LANCHOR0+176
+.L6:
+	addi	a3,a3,1
+	lw	a4,0(a4)
+	bne	a4,a2,.L6
+	sw	a3,g_free_count,a4
+	li	a4,0
+	lla	a2,.LANCHOR0+176
+.L7:
+	lw	a3,4(a5)
+	add	a4,a4,a3
+	lw	a5,0(a5)
+	bne	a5,a2,.L7
+.L8:
+	sw	a4,g_total_free,a5
+	li	a0,0
+	ret
+.L16:
+	lla	a3,.LANCHOR0+64
+	lw	a2,.LANCHOR0
+	li	a4,0
+	beq	a2,a3,.L17
+.L4:
+	sw	a4,g_order_ok,a3
+	j	.L9
+.L17:
+	lla	a3,.LANCHOR0+128
+	lw	a2,.LANCHOR0+64
+	bne	a2,a3,.L4
+	lla	a3,.LANCHOR0+176
+	lw	a4,.LANCHOR0+128
+	sub	a4,a4,a3
+	seqz	a4,a4
+	j	.L4
+.L5:
+	sw	zero,g_free_count,a5
+	li	a4,0
+	j	.L8
+	.size	main, .-main
+	.globl	g_total_free
+	.globl	g_free_count
+	.globl	g_order_ok
+	.bss
+	.align	2
+	.set	.LANCHOR0,. + 0
+	.type	heap_area, @object
+	.size	heap_area, 192
+heap_area:
+	.zero	192
+	.section	.sbss,"aw",@nobits
+	.align	2
+	.type	g_total_free, @object
+	.size	g_total_free, 4
+g_total_free:
+	.zero	4
+	.type	g_free_count, @object
+	.size	g_free_count, 4
+g_free_count:
+	.zero	4
+	.type	g_order_ok, @object
+	.size	g_order_ok, 4
+g_order_ok:
+	.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

build/task08_coalescing/task08_coalescing.s

@@ -0,0 +1,116 @@
+	.file	"task08_coalescing.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	a5,.LANCHOR0
+	lla	a4,.LANCHOR0+160
+	sw	a4,end_marker,a3
+	sw	a5,start,a3
+	lla	a3,.LANCHOR0+96
+	sw	a3,0(a5)
+	sw	a4,96(a5)
+	sw	zero,160(a5)
+	li	a4,48
+	sw	a4,4(a5)
+	sw	a4,52(a5)
+	li	a4,64
+	sw	a4,100(a5)
+	sw	zero,164(a5)
+	lla	a5,start
+	lla	a3,.LANCHOR0+48
+.L2:
+	mv	a4,a5
+	lw	a5,0(a5)
+	bltu	a5,a3,.L2
+	lla	a3,.LANCHOR0+96
+	beq	a5,a3,.L12
+.L3:
+	sw	a5,.LANCHOR0+48,a3
+	lla	a5,start
+	lla	a3,.LANCHOR0+48
+	beq	a4,a5,.L4
+	lw	a2,4(a4)
+	slli	a5,a2,1
+	srli	a5,a5,1
+	add	a5,a4,a5
+	beq	a5,a3,.L13
+.L4:
+	sw	a3,0(a4)
+	lw	a2,start
+	lla	a5,.LANCHOR0+160
+	beq	a2,a5,.L9
+	mv	a5,a2
+	li	a4,0
+	lla	a3,.LANCHOR0+160
+.L6:
+	addi	a4,a4,1
+	lw	a5,0(a5)
+	bne	a5,a3,.L6
+.L5:
+	sw	a4,g_free_count,a5
+	lw	a5,4(a2)
+	sw	a5,g_merged_size,a4
+	lw	a5,0(a2)
+	lla	a4,.LANCHOR0+160
+	sub	a5,a5,a4
+	seqz	a5,a5
+	sw	a5,g_merged_with_right,a4
+	li	a0,0
+	ret
+.L12:
+	li	a5,112
+	sw	a5,.LANCHOR0+52,a3
+	lw	a5,0(a4)
+	lw	a5,0(a5)
+	j	.L3
+.L13:
+	lla	a3,.LANCHOR0
+	lw	a5,52(a3)
+	add	a5,a5,a2
+	sw	a5,4(a4)
+	lw	a3,48(a3)
+	j	.L4
+.L9:
+	li	a4,0
+	j	.L5
+	.size	main, .-main
+	.globl	g_merged_with_right
+	.globl	g_merged_size
+	.globl	g_free_count
+	.bss
+	.align	2
+	.set	.LANCHOR0,. + 0
+	.type	heap_area, @object
+	.size	heap_area, 192
+heap_area:
+	.zero	192
+	.section	.sbss,"aw",@nobits
+	.align	2
+	.type	g_merged_with_right, @object
+	.size	g_merged_with_right, 4
+g_merged_with_right:
+	.zero	4
+	.type	g_merged_size, @object
+	.size	g_merged_size, 4
+g_merged_size:
+	.zero	4
+	.type	g_free_count, @object
+	.size	g_free_count, 4
+g_free_count:
+	.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

build/task09_config_macros/task09_config_macros.s

@@ -0,0 +1,44 @@
+	.file	"task09_config_macros.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:
+	li	a5,256
+	sw	a5,g_total_heap,a4
+	li	a5,248
+	sw	a5,g_adjusted_heap,a4
+	li	a5,1
+	sw	a5,g_dynamic_enabled,a4
+	sw	zero,g_trace_is_host_only,a5
+	li	a0,0
+	ret
+	.size	main, .-main
+	.globl	g_trace_is_host_only
+	.globl	g_dynamic_enabled
+	.globl	g_adjusted_heap
+	.globl	g_total_heap
+	.section	.sbss,"aw",@nobits
+	.align	2
+	.type	g_trace_is_host_only, @object
+	.size	g_trace_is_host_only, 4
+g_trace_is_host_only:
+	.zero	4
+	.type	g_dynamic_enabled, @object
+	.size	g_dynamic_enabled, 4
+g_dynamic_enabled:
+	.zero	4
+	.type	g_adjusted_heap, @object
+	.size	g_adjusted_heap, 4
+g_adjusted_heap:
+	.zero	4
+	.type	g_total_heap, @object
+	.size	g_total_heap, 4
+g_total_heap:
+	.zero	4
+	.ident	"GCC: (15.2.0-23) 15.2.0"
+	.section	.note.GNU-stack,"",@progbits

build/task10_heap4_demo/task10_heap4_demo.s

@@ -0,0 +1,253 @@
+	.file	"task10_heap4_demo.c"
+	.option nopic
+	.attribute arch, "rv32i2p1_zicsr2p0_zifencei2p0"
+	.attribute unaligned_access, 0
+	.attribute stack_align, 16
+	.text
+	.align	2
+	.type	heap_malloc_model, @function
+heap_malloc_model:
+	beq	a0,zero,.L1
+	addi	a4,a0,8
+	andi	a0,a0,7
+	beq	a0,zero,.L3
+	andi	a4,a4,-8
+	addi	a4,a4,8
+.L3:
+	lw	a0,start
+	lw	a3,end_marker
+	beq	a0,a3,.L10
+	lla	a2,start
+	j	.L8
+.L11:
+	mv	a0,a5
+.L8:
+	lw	a5,4(a0)
+	bgeu	a5,a4,.L12
+	lw	a5,0(a0)
+	mv	a2,a0
+	bne	a5,a3,.L11
+	li	a0,0
+	ret
+.L12:
+	sub	a3,a5,a4
+	li	a1,16
+	bleu	a3,a1,.L5
+	add	a5,a0,a4
+	sw	a3,4(a5)
+	lw	a3,0(a0)
+	sw	a3,0(a5)
+	sw	a5,0(a2)
+	sw	a4,4(a0)
+.L6:
+	sw	zero,0(a0)
+	lw	a5,4(a0)
+	li	a3,-2147483648
+	or	a5,a5,a3
+	sw	a5,4(a0)
+	lla	a3,free_bytes_remaining
+	lw	a5,0(a3)
+	sub	a5,a5,a4
+	sw	a5,0(a3)
+	lw	a4,minimum_ever_free
+	bgeu	a5,a4,.L7
+	sw	a5,minimum_ever_free,a4
+.L7:
+	addi	a0,a0,8
+	ret
+.L5:
+	lw	a4,0(a0)
+	sw	a4,0(a2)
+	mv	a4,a5
+	j	.L6
+.L10:
+	li	a0,0
+.L1:
+	ret
+	.size	heap_malloc_model, .-heap_malloc_model
+	.align	2
+	.type	heap_free_model, @function
+heap_free_model:
+	beq	a0,zero,.L13
+	lw	a5,-4(a0)
+	blt	a5,zero,.L19
+.L13:
+	ret
+.L19:
+	addi	a3,a0,-8
+	slli	a5,a5,1
+	srli	a2,a5,1
+	sw	a2,-4(a0)
+	lla	a4,free_bytes_remaining
+	lw	a5,0(a4)
+	add	a5,a5,a2
+	sw	a5,0(a4)
+	lla	a5,start
+.L15:
+	mv	a4,a5
+	lw	a5,0(a5)
+	bgtu	a3,a5,.L15
+	add	a1,a3,a2
+	beq	a5,a1,.L20
+.L16:
+	sw	a5,-8(a0)
+	lla	a5,start
+	beq	a4,a5,.L17
+	lw	a2,4(a4)
+	slli	a5,a2,1
+	srli	a5,a5,1
+	add	a5,a4,a5
+	beq	a3,a5,.L21
+.L17:
+	sw	a3,0(a4)
+	ret
+.L20:
+	lw	a5,4(a5)
+	add	a5,a5,a2
+	sw	a5,-4(a0)
+	lw	a5,0(a4)
+	lw	a5,0(a5)
+	j	.L16
+.L21:
+	lw	a5,-4(a0)
+	add	a5,a5,a2
+	sw	a5,4(a4)
+	lw	a5,-8(a0)
+	sw	a5,0(a4)
+	ret
+	.size	heap_free_model, .-heap_free_model
+	.align	2
+	.globl	main
+	.type	main, @function
+main:
+	addi	sp,sp,-32
+	sw	ra,28(sp)
+	sw	s0,24(sp)
+	sw	s1,20(sp)
+	sw	s2,16(sp)
+	sw	s3,12(sp)
+	sw	s4,8(sp)
+	lla	a4,.LANCHOR0
+	andi	a3,a4,7
+	mv	a5,a4
+	beq	a3,zero,.L23
+	andi	a4,a4,-8
+	addi	a5,a4,8
+.L23:
+	lla	s0,.LANCHOR0+256
+	sub	s0,s0,a5
+	andi	s0,s0,-8
+	addi	a4,a5,-8
+	add	s0,s0,a4
+	sw	s0,end_marker,a4
+	sw	zero,0(s0)
+	sw	zero,4(s0)
+	sw	s0,0(a5)
+	sub	a4,s0,a5
+	sw	a4,4(a5)
+	lla	s4,start
+	sw	a5,0(s4)
+	sw	zero,4(s4)
+	sw	a4,free_bytes_remaining,a5
+	sw	a4,minimum_ever_free,a5
+	li	a0,24
+	call	heap_malloc_model
+	mv	s2,a0
+	li	a0,40
+	call	heap_malloc_model
+	mv	s3,a0
+	mv	a0,s2
+	call	heap_free_model
+	li	a0,16
+	call	heap_malloc_model
+	mv	s1,a0
+	mv	a0,s3
+	call	heap_free_model
+	mv	a0,s1
+	call	heap_free_model
+	snez	s2,s2
+	snez	s3,s3
+	and	s2,s2,s3
+	snez	s1,s1
+	and	s1,s1,s2
+	sw	s1,g_allocations_ok,a5
+	lw	a5,0(s4)
+	beq	s0,a5,.L24
+	mv	a4,a5
+	li	a3,0
+.L25:
+	addi	a3,a3,1
+	lw	a4,0(a4)
+	bne	s0,a4,.L25
+	sw	a3,g_final_free_nodes,a2
+	li	a3,0
+.L26:
+	lw	a2,4(a5)
+	add	a3,a3,a2
+	lw	a5,0(a5)
+	bne	a5,a4,.L26
+.L27:
+	sw	a3,g_final_free_total,a5
+	lw	a5,minimum_ever_free
+	sw	a5,g_minimum_ever_free,a4
+	li	a0,0
+	lw	ra,28(sp)
+	lw	s0,24(sp)
+	lw	s1,20(sp)
+	lw	s2,16(sp)
+	lw	s3,12(sp)
+	lw	s4,8(sp)
+	addi	sp,sp,32
+	jr	ra
+.L24:
+	sw	zero,g_final_free_nodes,a5
+	li	a3,0
+	j	.L27
+	.size	main, .-main
+	.globl	g_minimum_ever_free
+	.globl	g_final_free_total
+	.globl	g_final_free_nodes
+	.globl	g_allocations_ok
+	.bss
+	.align	2
+	.set	.LANCHOR0,. + 0
+	.type	heap_area, @object
+	.size	heap_area, 264
+heap_area:
+	.zero	264
+	.section	.sbss,"aw",@nobits
+	.align	2
+	.type	minimum_ever_free, @object
+	.size	minimum_ever_free, 4
+minimum_ever_free:
+	.zero	4
+	.type	free_bytes_remaining, @object
+	.size	free_bytes_remaining, 4
+free_bytes_remaining:
+	.zero	4
+	.type	g_minimum_ever_free, @object
+	.size	g_minimum_ever_free, 4
+g_minimum_ever_free:
+	.zero	4
+	.type	g_final_free_total, @object
+	.size	g_final_free_total, 4
+g_final_free_total:
+	.zero	4
+	.type	g_final_free_nodes, @object
+	.size	g_final_free_nodes, 4
+g_final_free_nodes:
+	.zero	4
+	.type	g_allocations_ok, @object
+	.size	g_allocations_ok, 4
+g_allocations_ok:
+	.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