; resample -f box -x 48 -y 48 <hero.bit | page
assert failed: x
resample 2037340: suicide: sys: trap: fault read addr=0x0 pc=0x20a8ae
; acid 2037340
/proc/2037340/text:amd64 plan 9 executable
/sys/lib/acid/port
/sys/lib/acid/amd64
acid: lstk()
abort()+0x0 /sys/src/libc/9sys/abort.c:6
_assert(s=0x3ff55ee13f2af700)+0x42 /sys/src/libc/port/_assert.c:12
stbir__calculate_coefficients_downsample(scale_ratio=0x401000003eabdc32,filter=0x1,contributor=0x445988,out_first_pixel=0x2f,out_last_pixel=0x40116aaa0000002f,out_center_of_in=0x7fff423f5424,coefficient_group=0x445e20)+0x17a /usr/qwx/lib/extra/ftrvxmtrx/imgtools/stb_image_resize.h:1090
	i=0x20164100000000
stbir__calculate_filters(contributors=0x445508,scale_ratio=0x3eabdc32,filter=0x40116aaa00000001,input_size=0x8f,output_size=0x30,shift=0x0,coefficients=0x4459a0)+0x2f6 /usr/qwx/lib/extra/ftrvxmtrx/imgtools/stb_image_resize.h:1212
	total_contributors=0x9000000093
	out_pixels_radius=0x933ffeaaaa
	n=0x204e2e00000090
	in_first_pixel=0x423f54240000002f
	in_last_pixel=0x2f0000002f
	in_center_of_out=0x3ffeaaaa423f5424
	in_pixels_radius=0x933ffeaaaa
	out_first_pixel=0x423f54240000002f
	out_last_pixel=0x2f0000002f
	out_center_of_in=0x3ffeaaaa423f5424
stbir__resize_allocated(info=0x7fffffffeb60,input_stride_in_bytes=0x7fff0000023c,type=0x0,output_stride_in_bytes=0xc0,alpha_channel=0x0,flags=0x1,tempmem=0x445508,tempmem_size_in_bytes=0x31b0,input_data=0x42a128,output_data=0x4430a0,edge_horizontal=0x1,edge_vertical=0x1,colorspace=0x0)+0x3d4 /usr/qwx/lib/extra/ftrvxmtrx/imgtools/stb_image_resize.h:2386
	memory_required=0x31b0
	width_stride_input=0x31b00000023c
	width_stride_output=0x23c000000c0
stbir__resize_arbitrary(alloc_context=0x0,input_w=0x10000008f,input_h=0xa1,output_w=0x30,output_h=0x30,channels=0x3ffffff00000004,s0=0x0,t0=0x0,s1=0xa13f800000,t1=0x3f800000,transform=0x0,h_filter=0x1,v_filter=0x1,input_data=0x42a128,input_stride_in_bytes=0x23c,output_data=0x4430a0,output_stride_in_bytes=0xc0,alpha_channel=0x0,flags=0x1,type=0x0,edge_horizontal=0x1,edge_vertical=0x1,colorspace=0x0)+0x190 /usr/qwx/lib/extra/ftrvxmtrx/imgtools/stb_image_resize.h:2433
	info=0x42a128
	memory_required=0x31b0
	extra_memory=0x445508
	result=0x42a12800000000
stbir_resize_region(alloc_context=0x0,input_w=0x8f,input_h=0xa1000000a1,input_stride_in_bytes=0x23c,output_pixels=0x4430a0,output_w=0x30,output_h=0x30,output_stride_in_bytes=0xc0,s0=0x0,t0=0x0,s1=0x3f800000,t1=0x3f800000,num_channels=0x4,alpha_channel=0x0,flags=0x1,datatype=0x0,filter_horizontal=0x1,filter_vertical=0x1,edge_mode_horizontal=0x1,edge_mode_vertical=0x1,space=0x0)+0x128 /usr/qwx/lib/extra/ftrvxmtrx/imgtools/stb_image_resize.h:2568
main(argv=0x7fffffffef88,argc=0x0)+0x641 /usr/qwx/lib/extra/ftrvxmtrx/imgtools/resample.c:207
	oh=0x3000000030
	ow=0xa100000030
	hp=0x0
	wp=0x0
	alphai=0xffffffff00000000
	flags=0x1
	flts=0x7fffffffefa8
	csps=0x40311a
	st=0x0
	stmode=0xffffffff
	_args=0x40317e
	_argc=0x79
	s=0x7fffffffefb5
	e=0x0
	n=0x167bc
	f=0x1
	c=0x100000000
	a=0x42a068
	w=0x10000008f
	h=0x8f000000a1
	bp=0x167bc00000004
	b=0x0
	in=0x42a128
	out=0x4430a0
_main+0x40 /sys/src/libc/amd64/main9.s:15