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@let stack_segment 0x8000
@let vector_table 0x10
@address vector_table
hlt_isr ; 0x10 ISR0
hlt_isr ; 0x11 ISR1
hlt_isr ; 0x12 ISR2
hlt_isr ; 0x13 ISR3
stack_segment ; 0x14 Stack address
0x0 ; 0x15 Interrupt PC address (IPCA)
@label hlt_isr
ldi 0x55 RE
rti
@label program_segment
@address 0x0
; set up stack pointer to point to beginning of stack segment
ldi 0x14 RA
ldr RA RF
jpi main
@address program_segment
; set up address for program code
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