diff --git a/osaca/data/a64fx.yml b/osaca/data/a64fx.yml
new file mode 100644
index 0000000..d261e46
--- /dev/null
+++ b/osaca/data/a64fx.yml
@@ -0,0 +1,777 @@
+osaca_version: 0.3.3
+micro_architecture: Fujitsu A64FX
+arch_code: a64fx
+isa: AArch64
+ROB_size: 48
+retired_uOps_per_cycle: 4
+scheduler_size: 79
+hidden_loads: false
+load_latency: {w: 5.0, x: 5.0, b: 5.0, h: 5.0, s: 5.0, d: 8.0, q: 8.0, v: 8.0, z: 11.0}
+load_throughput:
+- {base: x, index: ~, offset: ~, scale: 1, pre-indexed: false, post-indexed: false, port_pressure:   [[1, '56']]}
+- {base: x, index: ~, offset: imd, scale: 1, pre-indexed: false, post-indexed: true, port_pressure:  [[1, '56'], [1, '']]}
+- {base: x, index: ~, offset: imd, scale: 1, pre-indexed: false, post-indexed: false, port_pressure: [[1, '56']]}
+- {base: x, index: ~, offset: imd, scale: 1, pre-indexed: true, post-indexed: true, port_pressure:   [[1, '56'], [1, '']]}
+- {base: x, index: ~, offset: imd, scale: 1, pre-indexed: true, post-indexed: false, port_pressure:  [[1, '56'], [1, '']]}
+- {base: x, index: x, offset: ~, scale: 1, pre-indexed: false, post-indexed: true, port_pressure:    [[1, '56'], [1, '']]}
+- {base: x, index: x, offset: ~, scale: 1, pre-indexed: false, post-indexed: false, port_pressure:   [[1, '56']]}
+- {base: x, index: x, offset: ~, scale: 1, pre-indexed: true, post-indexed: true, port_pressure:     [[1, '56'], [1, '']]}
+- {base: x, index: x, offset: ~, scale: 1, pre-indexed: true, post-indexed: false, port_pressure:    [[1, '56'], [1, '']]}
+- {base: x, index: x, offset: imd, scale: 1, pre-indexed: false, post-indexed: true, port_pressure:  [[1, '56'], [1, '']]}
+- {base: x, index: x, offset: imd, scale: 1, pre-indexed: false, post-indexed: false, port_pressure: [[1, '56']]}
+- {base: x, index: x, offset: imd, scale: 1, pre-indexed: true, post-indexed: true, port_pressure:   [[1, '56'], [1, '']]}
+- {base: x, index: x, offset: imd, scale: 1, pre-indexed: true, post-indexed: false, port_pressure:  [[1, '56'], [1, '']]}
+load_throughput_default: [[1, '56'], [1, ['5D', '6D']]]
+store_throughput: []
+store_throughput_default: [[1, '56'], [1, '7']]
+ports: ['0', 0DV, '1', '2', '3', '4', '5', 5D, '6', 6D, '7', '8']
+port_model_scheme: |
+  +---------------------------------------------------------------------------------+
+  |                2 * 10 entry RSA0/1, 2 * 20 entry RSE0/1, 19 entry RSBR          |
+  +---------------------------------------------------------------------------------+
+    0 |FLA    1 |PR      2 |FLB   3 |EXA    4 |EXB     5 |EAGA   6 |EAGB    7 |BR
+      \/        \/         \/       \/        \/         \/        \/         \/
+   +-------+ +-------+ +-------+ +-------+ +-------+  +-------+ +-------+  +------+
+   |INT ALU| |Predic.| |Int ALU| |Int ALU| |Int ALU|  |Int ALU| |Int ALU|  |Branch|
+   +-------+ | manip.| +-------+ +-------+ +-------+  +-------+ +-------+  +------+
+   +-------+ +-------+ +-------+ +-------+ +-------+  +-------+ +-------+
+   | FP ALU|           | FP ALU| |  MUL  | |  DIV  |  |  AGU  | |  AGU  |
+   +-------+           +-------+ +-------+ +-------+  +-------+ +-------+
+   +-------+           +-------+ +-------+ +-------+  +-------+ +-------+
+   |  FMA  |           |  FMA  | | SHIFT | | SHIFT |  |  LOAD | |  LOAD |
+   +-------+           +-------+ +-------+ +-------+  +-------+ +-------+
+   +-------+           +-------+ +-------+
+   | FP DIV|           | SHIFT | | INT ST|
+   +-------+           +-------+ +-------+
+   +-------+
+   | SHIFT |
+   +-------+
+   +-------+
+   | CRYPTO|
+   +-------+
+   +-------+
+   | FP ST |
+   +-------+
+   +--------+
+   |VEC ADDR|
+   |  CALC  |
+   +--------+
+instruction_forms:
+- name: add
+  operands:
+  - class: register
+    prefix: x
+  - class: register
+    prefix: x
+  - class: register
+    prefix: x
+  throughput: 0.25
+  latency: 1.0  # 	1*p0234
+  port_pressure: [[1, '0234']]
+- name: add
+  operands:
+  - class: register
+    prefix: x
+  - class: register
+    prefix: x
+  - class: immediate
+    imd: int
+  throughput: 0.25
+  latency: 1.0  # 	1*p0234
+  port_pressure: [[1, '0234']]
+- name: adds
+  operands:
+  - class: register
+    prefix: x 
+  - class: register
+    prefix: x
+  - class: immediate
+    imd: int
+  throughput: 0.5
+  latency: 1.0  # 	1*p34
+  port_pressure: [[1, '34']]
+- name: b.ne
+  operands:
+  - class: identifier
+  throughput: 1.0
+  latency: 0.0
+  port_pressure: [[1, '8']]
+- name: b.gt
+  operands:
+  - class: identifier
+  throughput: 1.0
+  latency: 0.0
+  port_pressure: [[1, '8']]
+- name: bne
+  operands:
+  - class: identifier
+  throughput: 1.0
+  latency: 0.0
+  port_pressure: [[1, '8']]
+- name: cmp
+  operands:
+  - class: register
+    prefix: w
+  - class: immediate
+    imd: int
+  throughput: 0.5
+  latency: 1.0  # 	1*p34
+  port_pressure: [[1, '34']]
+- name: cmp
+  operands:
+  - class: register
+    prefix: x
+  - class: register
+    prefix: x
+  throughput: 0.5
+  latency: 1.0  # 	1*p34
+  port_pressure: [[1, '34']]
+- name: dup
+  operands:
+  - class: register
+    prefix: d
+  - class: register
+    prefix: v
+    shape: d
+    width: '*'
+  throughput: 1.0
+  latency: 6.0  # 	1*p0
+  port_pressure: [[1, '0']]
+- name: fadd
+  operands:
+  - class: register
+    prefix: v
+    shape: s
+    width: '*'
+  - class: register
+    prefix: v
+    shape: s
+    width: '*'
+  - class: register
+    prefix: v
+    shape: s
+    width: '*'
+  throughput: 0.5
+  latency: 9.0  # 	1*p02
+  port_pressure: [[1, '02']]
+- name: fadd
+  operands:
+  - class: register
+    prefix: d
+    width: '*'
+  - class: register
+    prefix: d
+    width: '*'
+  - class: register
+    prefix: d
+    width: '*'
+  throughput: 0.5
+  latency: 9.0  # 	1*p02
+  port_pressure: [[1, '02']]
+- name: fadd
+  operands:
+  - class: register
+    prefix: v
+    shape: d
+    width: '*'
+  - class: register
+    prefix: v
+    shape: d
+    width: '*'
+  - class: register
+    prefix: v
+    shape: d
+    width: '*'
+  throughput: 0.5
+  latency: 9.0  # 	1*p02
+  port_pressure: [[1, '02']]
+- name: fdiv
+  operands:
+  - class: register
+    prefix: v
+    shape: s
+    width: 128
+  - class: register
+    prefix: v
+    shape: s
+    width: 128
+  - class: register
+    prefix: v
+    shape: s
+    width: 128
+  throughput: 29.0
+  latency: 29.0  # 	1*p0+29*p0DV
+  port_pressure: [[1, '0'], [29.0, [0DV]]]
+- name: fdiv
+  operands:
+  - class: register
+    prefix: v
+    shape: d
+    width: 128
+  - class: register
+    prefix: v
+    shape: d
+    width: 128
+  - class: register
+    prefix: v
+    shape: d
+    width: 128
+  throughput: 43.0
+  latency: 43.0  # 	1*p0+43*p0DV
+  port_pressure: [[1, '0'], [43.0, [0DV]]]
+- name: fmla
+  operands:
+  - class: register
+    prefix: v
+    shape: s
+    width: '*'
+  - class: register
+    prefix: v
+    shape: s
+    width: '*'
+  - class: register
+    prefix: v
+    shape: s
+    width: '*'
+  throughput: 0.5
+  latency: 9.0  # 	1*p02
+  port_pressure: [[1, '02']]
+- name: fmla
+  operands:
+  - class: register
+    prefix: v
+    shape: d
+    width: '*'
+  - class: register
+    prefix: v
+    shape: d
+    width: '*'
+  - class: register
+    prefix: v
+    shape: d
+    width: '*'
+  throughput: 0.5
+  latency: 9.0  # 	1*p02
+  port_pressure: [[1, '02']]
+- name: fmov
+  operands:
+  - {class: register, prefix: s}
+  - {class: immediate, imd: double}
+  latency: ~  # 	1*p0
+  port_pressure: [[1, '0']]
+  throughput: 1.0
+- name: fmul
+  operands:
+  - class: register
+    prefix: v
+    shape: s
+    width: '*'
+  - class: register
+    prefix: v
+    shape: s
+    width: '*'
+  - class: register
+    prefix: v
+    shape: s
+    width: '*'
+  throughput: 0.5
+  latency: 9.0  # 	1*p02
+  port_pressure: [[1, '02']]
+- name: fmul
+  operands:
+  - class: register
+    prefix: v
+    shape: d
+    width: '*'
+  - class: register
+    prefix: v
+    shape: d
+    width: '*'
+  - class: register
+    prefix: v
+    shape: d
+    width: '*'
+  throughput: 0.5
+  latency: 9.0  # 	1*p02
+  port_pressure: [[1, '02']]
+- name: fmul
+  operands:
+  - class: register
+    prefix: d
+  - class: register
+    prefix: d
+  - class: register
+    prefix: d
+  throughput: 0.5
+  latency: 9.0  # 	1*p02
+  port_pressure: [[1, '02']]
+- name: frecpe
+  operands:
+  - class: register
+    prefix: v
+    shape: s
+    width: '*'
+  - class: register
+    prefix: v
+    shape: s
+    width: '*'
+  - class: register
+    prefix: v
+    shape: s
+    width: '*'
+  throughput: 0.5
+  latency: 4.0  # 	1*p02
+  port_pressure: [[1, '02']]
+- name: frecpe
+  operands:
+  - class: register
+    prefix: v
+    shape: d
+    width: '*'
+  - class: register
+    prefix: v
+    shape: d
+    width: '*'
+  - class: register
+    prefix: v
+    shape: d
+    width: '*'
+  throughput: 0.5
+  latency: 4.0  # 	1*p02
+  port_pressure: [[1, '02']]
+- name: fsub
+  operands:
+  - class: register
+    prefix: v
+    shape: s
+    width: '*'
+  - class: register
+    prefix: v
+    shape: s
+    width: '*'
+  - class: register
+    prefix: v
+    shape: s
+    width: '*'
+  throughput: 0.5
+  latency: 9.0  # 	1*p02
+  port_pressure: [[1, '02']]
+- name: fsub
+  operands:
+  - class: register
+    prefix: v
+    shape: d
+    width: '*'
+  - class: register
+    prefix: v
+    shape: d
+    width: '*'
+  - class: register
+    prefix: v
+    shape: d
+    width: '*'
+  throughput: 0.5
+  latency: 9.0  # 	1*p02
+  port_pressure: [[1, '02']]
+- name: ldp
+  operands:
+  - class: register
+    prefix: d
+  - class: register
+    prefix: d
+  - class: memory
+    base: x
+    offset: imd
+    index: ~
+    scale: 1
+    pre-indexed: false
+    post-indexed: false
+  throughput: 1.0
+  latency: 8.0  # 	2*p56+2*p5D6D
+  port_pressure: [[2, '56'], [2, ['5D', '6D']]]
+- name: ldp
+  operands:
+  - class: register
+    prefix: d
+  - class: register
+    prefix: d
+  - class: memory
+    base: x
+    offset: imd
+    index: ~
+    scale: 1
+    pre-indexed: false
+    post-indexed: true
+  throughput: 1.0
+  latency: 8.0  # 	2*p56+2*p5D6D+1*p3456
+  port_pressure: [[2, '56'], [2, ['5D', '6D']], [1, '3456']]
+- name: ldp
+  operands:
+  - class: register
+    prefix: q
+  - class: register
+    prefix: q
+  - class: memory
+    base: x
+    offset: '*'
+    index: '*'
+    scale: 1
+    pre-indexed: false
+    post-indexed: false
+  throughput: 1.0
+  latency: 8.0  # 	2*p56+2*p5D6D
+  port_pressure: [[2, '56'], [2, ['5D', '6D']]]
+- name: ldp
+  operands:
+  - class: register
+    prefix: q
+  - class: register
+    prefix: q
+  - class: memory
+    base: x
+    offset: ~
+    index: ~
+    scale: 1
+    pre-indexed: false
+    post-indexed: true
+  throughput: 1.0
+  latency: 8.0  # 	2*p56+2*p5D6D+1*p3456
+  port_pressure: [[2, '56'], [2, ['5D', '6D']], [1, '3456']]
+- name: ldp
+  operands:
+  - class: register
+    prefix: q
+  - class: register
+    prefix: q
+  - class: memory
+    base: x
+    offset: '*'
+    index: '*'
+    scale: '*'
+    pre-indexed: false
+    post-indexed: false
+  throughput: 1.0
+  latency: 8.0  # 	2*p56+2*p5D6D
+  port_pressure: [[2, '56'], [2, ['5D', '6D']]]
+- name: ldp
+  operands:
+  - class: register
+    prefix: q
+  - class: register
+    prefix: q
+  - class: memory
+    base: x
+    offset: '*'
+    index: '*'
+    scale: '*'
+    pre-indexed: true
+    post-indexed: false
+  throughput: 1.0
+  latency: 8.0  # 	2*p56+2*p5D6D+1*p3456
+  port_pressure: [[2, '56'], [2, ['5D', '6D']], [1, '3456']]
+- name: ldp
+  operands:
+  - class: register
+    prefix: d
+  - class: register
+    prefix: d
+  - class: memory
+    base: x
+    offset: '*'
+    index: '*'
+    scale: '*'
+    pre-indexed: false
+    post-indexed: true
+  throughput: 1.0
+  latency: 8.0  # 	2*p56+2*p5D6D+1*p3456
+  port_pressure: [[2, '56'], [2, ['5D', '6D']], [1, '3456']]
+- name: ldur    # JL: assumed from ldr
+  operands:
+  - class: register
+    prefix: q
+  - class: memory
+    base: x
+    offset: '*'
+    index: '*'
+    scale: '*'
+    post-indexed: false
+    pre-indexed: false
+  throughput: 0.5
+  latency: 8.0  # 	2*p56+2*p5D6D
+  port_pressure: [[2, '56'], [2, ['5D', '6D']]]
+- name: ldr
+  operands:
+  - class: register
+    prefix: q
+  - class: memory
+    base: x
+    offset: '*'
+    index: '*'
+    scale: '*'
+    post-indexed: false
+    pre-indexed: false
+  throughput: 0.5
+  latency: 8.0  # 	2*p56+2*p5D6D
+  port_pressure: [[2, '56'], [2, ['5D', '6D']]]
+- name: ldr
+  operands:
+  - class: register
+    prefix: d
+  - class: memory
+    base: x
+    offset: '*'
+    index: '*'
+    scale: '*'
+    post-indexed: false
+    pre-indexed: false
+  throughput: 0.5
+  latency: 8.0  # 	2*p56+2*p5D6D
+  port_pressure: [[2, '56'], [2, ['5D', '6D']]]
+- name: ldr
+  operands:
+  - class: register
+    prefix: d
+  - class: memory
+    base: x
+    offset: imd
+    index: '*'
+    scale: '*'
+    post-indexed: false
+    pre-indexed: false
+  throughput: 0.5
+  latency: 8.0  # 	2*p56+2*p5D6D
+  port_pressure: [[2, '56'], [2, ['5D', '6D']]]
+- name: ldr
+  operands:
+  - class: register
+    prefix: d
+  - class: memory
+    base: x
+    offset: '*'
+    index: '*'
+    scale: '*'
+    post-indexed: false
+    pre-indexed: false
+  throughput: 0.5
+  latency: 5.0  # 	2*p56+2*p5D6D
+  port_pressure: [[2, '56'], [2, ['5D', '6D']]]
+- name: ldr
+  operands:
+  - class: register
+    prefix: x
+  - class: register
+    prefix: x
+  throughput: 0.0
+  latency: 0.0
+  port_pressure: []
+- name: ldr
+  operands:
+  - class: register
+    prefix: q
+  - class: register
+    prefix: q
+  throughput: 0.0
+  latency: 0.0
+  port_pressure: []
+- name: ldr
+  operands:
+  - class: register
+    prefix: d
+  - class: register
+    prefix: d
+  throughput: 0.0
+  latency: 0.0
+  port_pressure: []
+- name: mov
+  operands:
+  - class: register
+    prefix: x
+  - class: register
+    prefix: x
+  throughput: 0.25
+  latency: 1.0  # 	1*p3456
+  port_pressure: [[1, '3456']]
+- name: mov
+  operands:
+  - class: register
+    prefix: v
+    shape: b
+    width: '*'
+  - class: register
+    prefix: v
+    shape: b
+    width: '*'
+  throughput: 0.5
+  latency: 4.0  # 	1*p02
+  port_pressure: [[1, '02']]
+- name: stp
+  operands:
+  - class: register
+    prefix: d
+  - class: register
+    prefix: d
+  - class: memory
+    base: x
+    offset: '*'
+    index: '*'
+    scale: '*'
+    pre-indexed: false
+    post-indexed: false
+  throughput: 2.0
+  latency: 0  # 	2*p56+2*p0
+  port_pressure: [[2, '56'], [2, '0']]
+- name: stp
+  operands:
+  - class: register
+    prefix: q
+  - class: register
+    prefix: q
+  - class: memory
+    base: x
+    offset: '*'
+    index: '*'
+    scale: '*'
+    pre-indexed: false
+    post-indexed: true
+  throughput: 2.0
+  latency: 0  # 	2*p56+2*p0+1*3456
+  port_pressure: [[2, '56'], [2, '0'], [1, '3456']]
+- name: stp
+  operands:
+  - class: register
+    prefix: q
+  - class: register
+    prefix: q
+  - class: memory
+    base: x
+    offset: '*'
+    index: '*'
+    scale: '*'
+    pre-indexed: false
+    post-indexed: false
+  throughput: 2.0
+  latency: 0  # 	2*p56+2*p0
+  port_pressure: [[2, '56'], [2, '1']]
+- name: stur # JL: assumed from str
+  operands:
+  - class: register
+    prefix: d
+  - class: memory
+    base: x
+    offset: '*'
+    index: '*'
+    scale: '*'
+    pre-indexed: false
+    post-indexed: false
+  throughput: 1.0
+  latency: 0  # 	1*p56+1*p0
+  port_pressure: [[1, '56'], [1, '0']]
+- name: stur # JL: assumed from str
+  operands:
+  - class: register
+    prefix: q
+  - class: memory
+    base: x
+    offset: '*'
+    index: '*'
+    scale: '*'
+    pre-indexed: false
+    post-indexed: false
+  throughput: 1.0
+  latency: 0  # 	1*p56+1*p0
+  port_pressure: [[1, '56'], [1, '0']]
+- name: str
+  operands:
+  - class: register
+    prefix: x
+  - class: memory
+    base: x
+    offset: '*'
+    index: '*'
+    scale: '*'
+    pre-indexed: false
+    post-indexed: false
+  throughput: 1.0
+  latency: 0  # 	1*p56+1*p0
+  port_pressure: [[1, '56'], [1, '0']]
+- name: str
+  operands:
+  - class: register
+    prefix: d
+  - class: memory
+    base: x
+    offset: '*'
+    index: '*'
+    scale: '*'
+    pre-indexed: false
+    post-indexed: false
+  throughput: 1.0
+  latency: 0  # 	1*p56+1*p0
+  port_pressure: [[1, '56'], [1, '0']]
+- name: str
+  operands:
+  - class: register
+    prefix: d
+  - class: memory
+    base: x
+    offset: '*'
+    index: '*'
+    scale: '*'
+    pre-indexed: false
+    post-indexed: true
+  throughput: 1.0
+  latency: 0  # 	1*p56+1*p0+1*p3456
+  port_pressure: [[1, '56'], [1, '0'], [1, '3456']]
+- name: str
+  operands:
+  - class: register
+    prefix: q
+  - class: memory
+    base: x
+    offset: '*'
+    index: '*'
+    scale: 1
+    pre-indexed: false
+    post-indexed: false
+  throughput: 1.0
+  latency: 0  # 	1*p56+1*p0
+  port_pressure: [[1, '56'], [1, '0']]
+- name: str
+  operands:
+  - class: register
+    prefix: q
+  - class: memory
+    base: x
+    offset: '*'
+    index: '*'
+    scale: '*'
+    pre-indexed: false
+    post-indexed: true
+  throughput: 1.0
+  latency: 0  # 	1*p56+1*p0+1*3456
+  port_pressure: [[1, '56'], [1, '0'], [1, '3456']]
+- name: str
+  operands:
+  - class: register
+    prefix: x
+  - class: memory
+    base: x
+    offset: '*'
+    index: '*'
+    scale: '*'
+    pre-indexed: false
+    post-indexed: true
+  throughput: 1.0
+  latency: 0  # 	1*p56+1*p3+1*p3456
+  port_pressure: [[1, '56'], [1, '3'], [1, '3456']]
+- name: sub
+  operands:
+  - class: register
+    prefix: w
+  - class: register
+    prefix: w
+  - class: immediate
+    imd: int
+  throughput: 0.25
+  latency: 1.0  # 	1*p3456
+  port_pressure: [[1, '3456']]
diff --git a/osaca/osaca.py b/osaca/osaca.py
index 75c561a..35d5965 100755
--- a/osaca/osaca.py
+++ b/osaca/osaca.py
@@ -17,7 +17,7 @@ MODULE_DATA_DIR = os.path.join(
 )
 LOCAL_OSACA_DIR = os.path.join(os.path.expanduser('~') + '/.osaca/')
 DATA_DIR = os.path.join(LOCAL_OSACA_DIR, 'data/')
-SUPPORTED_ARCHS = ['SNB', 'IVB', 'HSW', 'BDW', 'SKX', 'CSX', 'ICL', 'ZEN1', 'ZEN2', 'TX2']
+SUPPORTED_ARCHS = ['SNB', 'IVB', 'HSW', 'BDW', 'SKX', 'CSX', 'ICL', 'ZEN1', 'ZEN2', 'TX2', 'A64FX']
 
 
 # Stolen from pip
@@ -71,7 +71,7 @@ def create_parser(parser=None):
     parser.add_argument(
         '--arch',
         type=str,
-        help='Define architecture (SNB, IVB, HSW, BDW, SKX, CSX, ICL, ZEN1, ZEN2, TX2).',
+        help='Define architecture (SNB, IVB, HSW, BDW, SKX, CSX, ICL, ZEN1, ZEN2, TX2, A64FX).',
     )
     parser.add_argument(
         '--fixed',
diff --git a/osaca/semantics/hw_model.py b/osaca/semantics/hw_model.py
index 9c7e77d..1fa3a1e 100755
--- a/osaca/semantics/hw_model.py
+++ b/osaca/semantics/hw_model.py
@@ -240,6 +240,7 @@ class MachineModel(object):
     def get_isa_for_arch(arch):
         """Return ISA for given micro-arch ``arch``."""
         arch_dict = {
+            'a64fx': 'aarch64',
             'tx2': 'aarch64',
             'zen1': 'x86',
             'zen+': 'x86',