--- wikisrc/ports/evbarm.mdwn	2018/07/19 10:15:05	1.48
+++ wikisrc/ports/evbarm.mdwn	2018/11/21 13:27:04	1.57
@@ -1,14 +1,12 @@
 [[!template id=port
 port="evbarm"
 port_alt="arm"
-port_var1="arm"
-port_var2="armeb"
-port_var3="earm"
-port_var4="earmeb"
-port_var5="earmv6hf"
-port_var6="earmv7hf"
-port_var7="earmv7hfeb"
-port_var_install_notes="evbarm-arm"
+port_var1="earm"
+port_var2="earmeb"
+port_var3="earmv6hf"
+port_var4="earmv7hf"
+port_var5="earmv7hfeb"
+port_var_install_notes="evbarm-earm"
 cur_rel="8.0"
 future_rel="9.0"
 changes_cur="8.0"
@@ -24,25 +22,44 @@ Matt Thomas is the maintainer of NetBSD/
 
 ### CPU types
 
-The evbarm port can be built with a variety of CPU options.  There are
-three main variables: the instruction set, the endianness, and whether
-there is hardware floating point.  By default the CPU type is "earm",
-and this implies little endian (el when explicitly stated), and soft
+The evbarm port can be built with a variety of CPU options, corresponding to the
+[large array of ARM CPU architectures](https://en.wikipedia.org/wiki/ARM_architecture#Cores).
+There are
+four main variables: the word size, the instruction set, the
+endianness, and whether there is hardware floating point.  By default
+the CPU type is "earm", and this implies aarch32 (32-bit), \todo cpu
+architecture, little endian (el when explicitly stated), and soft
 (emulated) floating point.  Another example, suitable for Raspberry PI
-2, is earmv7hf, which is the v7 instruction set, little endian,
-and hardware floating point.
+2, is earmv7hf, which is aarch32, the v7 instruction set, little
+endian, and hardware floating point.
 
 Typically, various boards are best compiled with a CPU type that
 matches the board's CPU and floating point support, but generally a
 lower CPU instruction set version is workable on a newer board.  See
 build.sh and look for aliases for the evbarm port.
 
+Through NetBSD 8, the evbarm port has supported exclusively the
+aarch32 (32-bit CPU) sub-family of the ARM architecture.  Some
+processors, such as many supporting the armv8 CPU architecture, also
+support a 64-bit instruction set, referred to as aarch64.  This is
+sometimes referred to as a distinct port, [[NetBSD/aarch64|aarch64]],
+with code in src/sys/arch/aarch64, but it is built as the evbarm port
+with aarch64 cpu type, and available as the alias evbarm64.
+
 ### Kernels and userland
 
 The evbarm userland can be used on any system that can run code of the
 CPU type used for the build.  Typically, a particular board requires a
 kernel for that board.
 
+### anita and qemu
+
+anita can be used to test builds.  (In addition to anita, install qemu and dtb-arm-vexpress from pkgsrc.)   The release subdirectory should follow the naming convention on the autobuild cluster, used below.
+
+ - evbarm-earmv7hf uses "qemu-system-arm -M vexpress-a15"
+ - evbarm-aarch64 uses "qemu-system-aarch64 -M virt"
+ - Information on how to test emulated versions of other specific hardware is welcome.
+
 ### Board specific information
  - [[Allwinner sunxi family SoCs|Allwinner]]
  - [[BeagleBone and BeagleBone Black|BeagleBone]]