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sinclairrf |
; Copyright 2012, Sinclair R.F., Inc.
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;
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; Multi-byte arithmetic
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; Notation: Multi-byte values on the stack are xx[n] where n=0 is the least
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; significant byte of the value
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.function add_u16_u8__u16 ; ( u0[0] u0[1] u1[0] - us[0] us[1] )
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swap >r +uu r> +
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.return
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.function add_u16_u8__u24 ; ( u0[0] u0[1] u1[0] - us[0] us[1] us[2] )
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swap >r +uu r> +uu
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.return
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.function add_u16_u16__u16 ; ( u0[0] u0[1] u1[0] u1[1] - us[0] us[1] )
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>r .call(add_u16_u8__u16) r> +
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.return
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.function add_u16_u16__u24 ; ( u0[0] u0[1] u1[0] u1[1] - us[0] us[1] us[2] )
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>r .call(add_u16_u8__u24) r> .call(add_u16_u8__u16)
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.return
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.function add_u24_u8__u24 ; ( u0[0] u0[1] u0[2] u1[0] - us[0] us[1] us[2] )
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swap >r .call(add_u16_u8__u24) r> +
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.return
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.function add_u24_u8__u32 ; ( u0[0] u0[1] u0[2] u1[0] - us[0] us[1] us[2] u[3] )
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swap >r .call(add_u16_u8__u24) r> +uu
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.return
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.function add_u24_u16__u24 ; ( u0[0] u0[1] u0[2] u1[0] u1[1] - us[0] us[1] us[2] )
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>r .call(add_u24_u8__u24) r> .call(add_u16_u8__u16)
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.return
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.function add_u24_u16__u32 ; ( u0[0] u0[1] u0[2] u1[0] u1[1] - us[0] us[1] us[2] us[3] )
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>r .call(add_u24_u8__u32) r> .call(add_u24_u8__u24)
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.return
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.function add_u24_u24__u24 ; ( u0[0] u0[1] u0[2] u1[0] u1[1] u1[2] - us[0] us[1] us[2] )
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>r .call(add_u24_u16__u24) r> +
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.return
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.function add_u24_u24__u32 ; ( u0[0] u0[1] u0[2] u1[0] u1[1] u1[2] - us[0] us[1] us[2] us[3] )
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>r .call(add_u24_u16__u32) r> .call(add_u16_u8__u16)
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.return
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.function add_u32_u8__u32 ; ( u0[0] u0[1] u0[2] u0[3] u1[0] - us[0] us[1] us[2] us[3] )
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swap >r .call(add_u24_u8__u32) r> +
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.return
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.function add_u32_u16__u32 ; ( u0[0] u0[1] u0[2] u0[3] u1[0] u1[1] - us[0] us[1] us[2] us[3] )
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>r .call(add_u32_u8__u32) r> .call(add_u24_u8__u24)
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.return
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.function add_u32_u24__u32 ; ( u0[0] u0[1] u0[2] u0[3] u1[0] u1[1] u1[2] - us[0] us[1] us[2] us[3] )
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>r .call(add_u32_u16__u32) r> .call(add_u16_u8__u16)
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.return
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.function add_u32_u32__u32 ; ( u0[0] u0[1] u0[2] u0[3] u1[0] u1[1] u1[2] u1[3] - us[0] us[1] us[2] us[3] )
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>r .call(add_u32_u24__u32) r> +
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.return
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