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collapseos/avr/avr.h

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; *** CPU registers aliases ***
.equ SREG_C 0 ; Carry Flag
.equ SREG_Z 1 ; Zero Flag
.equ SREG_N 2 ; Negative Flag
.equ SREG_V 3 ; Two's Complement Overflow Flag
.equ SREG_S 4 ; Sign Bit
.equ SREG_H 5 ; Half Carry Flag
.equ SREG_T 6 ; Bit Copy Storage
.equ SREG_I 7 ; Global Interrupt Enable