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@use ext_std:*
; Program: sum two values and store the result in RAM
; ROM (and program execution) starts at offset 0x0
@address 0x0
jpi program
@label ram_offset
0x8000 ; store ram offset for later memory access
@label program
ldi 10 RA ; RA := 10
ldi 20 RB ; RB := 20
add RA RB RC ; RC := RA + RB
ldi ram_offset RD ; store address of ram_offset in RD
ldr RD RD ; dereference ram_offset address
@label debug
str RC RD ; store RC in RAM
; Check that 10 + 20 = 30
mov RC RA ; RA := result of sum
ldi 30 RB ; RB := 30
sub RA RB RC ; RC := RA - RB
bri zero success ; if result is zero, jump to success
ldi 2 RA ; RA := 2 to signal failure
hlt
; Else
@label success
ldi 1 RA ; RA := 1 to signal success
hlt
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