2022-08-15 15:43:22 -07:00
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// u32 addition (discarding 2^32 bit)
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%macro add_u32
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// stack: x, y
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add
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// stack: x + y
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dup1
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// stack: x + y, x + y
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%shr_const(32)
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// stack: (x + y) >> 32, x + y
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%shl_const(32)
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// stack: ((x + y) >> 32) << 32, x + y
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swap1
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// stack: x + y, ((x + y) >> 32) << 32
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sub
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// stack: x + y - ((x + y) >> 32) << 32
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%endmacro
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2022-07-18 16:12:19 -07:00
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// 32-bit right rotation
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%macro rotr
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// stack: rot, value
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dup2
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dup2
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// stack: rot, value, rot, value
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shr
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// stack: value >> rot, rot, value
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swap2
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// stack: value, rot, value >> rot
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swap1
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// stack: rot, value, value >> rot
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push 32
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sub
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// stack: 32 - rot, value, value >> rot
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shl
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// stack: value << (32 - rot), value >> rot
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push 32
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push 1
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swap1
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shl
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// stack: 1 << 32, value << (32 - rot), value >> rot
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swap1
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mod
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// stack: (value << (32 - rot)) % (1 << 32), value >> rot
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add
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%endmacro
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// 32-bit left rotation
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2022-07-18 16:18:25 -07:00
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%macro rotl
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2022-07-18 16:12:19 -07:00
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// stack: rot, value
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dup2
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dup2
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// stack: rot, value, rot, value
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push 32
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sub
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// stack: 32 - rot, value, rot, value
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shr
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// stack: value >> (32 - rot), rot, value
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swap2
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// stack: value, rot, value >> (32 - rot)
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swap1
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// stack: rot, value, value >> (32 - rot)
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shl
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// stack: value << rot, value >> (32 - rot)
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push 32
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push 1
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swap1
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shl
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// stack: 1 << 32, value << rot, value >> (32 - rot)
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swap1
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mod
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// stack: (value << rot) % (1 << 32), value >> (32 - rot)
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add
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%endmacro
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2022-07-26 11:01:57 -07:00
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%macro sha2_sigma_0
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2022-07-18 16:12:19 -07:00
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// stack: x
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dup1
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// stack: x, x
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push 7
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%rotr
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// stack: rotr(x, 7), x
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swap1
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// stack: x, rotr(x, 7)
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dup1
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// stack: x, x, rotr(x, 7)
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push 18
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%rotr
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// stack: rotr(x, 18), x, rotr(x, 7)
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swap1
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// stack: x, rotr(x, 18), rotr(x, 7)
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push 3
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shr
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// stack: shr(x, 3), rotr(x, 18), rotr(x, 7)
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xor
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xor
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2022-07-26 11:01:57 -07:00
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%endmacro
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2022-07-18 16:12:19 -07:00
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2022-07-19 14:19:19 -07:00
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%macro sha2_sigma_1
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2022-07-18 16:12:19 -07:00
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// stack: x
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dup1
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// stack: x, x
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push 17
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%rotr
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// stack: rotr(x, 17), x
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swap1
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// stack: x, rotr(x, 17)
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dup1
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// stack: x, x, rotr(x, 17)
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push 19
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%rotr
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// stack: rotr(x, 19), x, rotr(x, 17)
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swap1
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// stack: x, rotr(x, 19), rotr(x, 17)
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push 10
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shr
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// stack: shr(x, 10), rotr(x, 19), rotr(x, 17)
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xor
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xor
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2022-07-19 14:19:19 -07:00
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%endmacro
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2022-07-18 16:12:19 -07:00
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2022-07-19 14:19:19 -07:00
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%macro sha2_bigsigma_0
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2022-07-18 16:12:19 -07:00
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// stack: x
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dup1
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// stack: x, x
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push 2
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%rotr
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// stack: rotr(x, 2), x
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swap1
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// stack: x, rotr(x, 2)
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dup1
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// stack: x, x, rotr(x, 2)
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push 13
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%rotr
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// stack: rotr(x, 13), x, rotr(x, 2)
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swap1
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// stack: x, rotr(x, 13), rotr(x, 2)
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push 22
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%rotr
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// stack: rotr(x, 22), rotr(x, 13), rotr(x, 2)
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xor
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xor
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2022-07-19 14:19:19 -07:00
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%endmacro
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2022-07-18 16:12:19 -07:00
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2022-07-19 14:19:19 -07:00
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%macro sha2_bigsigma_1
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2022-07-18 16:12:19 -07:00
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// stack: x
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dup1
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// stack: x, x
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push 6
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%rotr
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// stack: rotr(x, 6), x
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swap1
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// stack: x, rotr(x, 6)
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dup1
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// stack: x, x, rotr(x, 6)
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push 11
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%rotr
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// stack: rotr(x, 11), x, rotr(x, 6)
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swap1
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// stack: x, rotr(x, 11), rotr(x, 6)
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push 25
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%rotr
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// stack: rotr(x, 25), rotr(x, 11), rotr(x, 6)
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xor
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xor
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2022-07-19 14:19:19 -07:00
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%endmacro
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2022-07-18 16:12:19 -07:00
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2022-07-19 14:19:19 -07:00
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%macro sha2_choice
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2022-07-18 16:12:19 -07:00
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// stack: x, y, z
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dup1
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// stack: x, x, y, z
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swap2
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// stack: y, x, x, z
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and
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// stack: x and y, x, z
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swap2
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// stack: z, x, x and y
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swap1
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// stack: x, z, x and y
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not
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// stack: not x, z, x and y
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and
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// stack: (not x) and z, x and y
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or
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2022-07-19 14:19:19 -07:00
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%endmacro
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2022-07-18 16:12:19 -07:00
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2022-07-19 14:19:19 -07:00
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%macro sha2_majority
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2022-07-18 16:12:19 -07:00
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// stack: x, y, z
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dup3
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dup3
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dup3
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// stack: x, y, z, x, y, z
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and
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// stack: x and y, z, x, y, z
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swap2
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2022-08-16 18:37:36 -07:00
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// stack: x, z, x and y, y, z
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2022-07-18 16:12:19 -07:00
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and
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// stack: x and z, x and y, y, z
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swap2
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2022-08-16 18:37:36 -07:00
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// stack: y, x and y, x and z, z
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2022-07-18 16:12:19 -07:00
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swap1
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2022-08-16 18:37:36 -07:00
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// stack: x and y, y, x and z, z
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2022-07-18 16:12:19 -07:00
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swap3
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// stack: z, y, x and z, x and y
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and
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// stack: y and z, x and z, x and y
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or
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or
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2022-07-19 14:19:19 -07:00
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%endmacro
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2022-07-18 16:12:19 -07:00
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