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| − | <div align="center">
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| − | Page:
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| − | '''[ 1 ]''' |
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| − | [[AGI Command Reference 2 - COMMANDS TO LOAD AND UNLOAD RESOURCES|2]] |
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| − | [[AGI Command Reference 3 - PROGRAM CONTROL COMMANDS|3]] |
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| − | [[AGI Command Reference 4 - OBJECT CONTROL COMMANDS|4]] |
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| − | [[AGI Command Reference 5 - OBJECT DESCRIPTION COMMANDS|5]] |
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| − | [[AGI Command Reference 6 - OBJECT MOTION CONTROL COMMANDS|6]] |
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| − | [[AGI Command Reference 7 - INVENTORY ITEM MANAGEMENT COMMANDS|7]] |
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| − | [[AGI Command Reference 8 - PICTURE RESOURCE MANAGEMENT COMMANDS|8]] |
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| − | [[AGI Command Reference 9 - SOUND RESOURCE MANAGEMENT COMMANDS|9]] |
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| − | [[AGI Command Reference 10 - TEXT MANAGEMENT COMMANDS|10]] |
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| − | [[AGI Command Reference 11 - STRING MANAGEMENT COMMANDS|11]] |
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| − | [[AGI Command Reference 12 - INITIALIZATION COMMANDS|12]] |
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| − | [[AGI Command Reference 13 - MENU MANAGEMENT COMMANDS|13]] |
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| − | [[AGI Command Reference 14 - TEST COMMANDS|14]] |
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| − | [[AGI Command Reference 15 - OTHER COMMANDS|15]] |
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| − | [[AGI Command Reference 16 - UNKNOWN COMMANDS|16]]
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| − | </div>
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| − |
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| − |
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| − | Arithmetic Commands
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| − | Commands that operate on variables
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| − | === <br />increment(n); ===
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| − |
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| − | The value of the variable Var(n) is incremented by one, i.e.<br />
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| − | Var(n) = Var(n)+1. If the value is already 255, it is left unchanged.
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| − |
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| − | === decrement(n); ===
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| − | The value of the variable Var(n) is decremented by one, i.e.<br />
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| − | Var(n) = Var(n)-1. If the value is 0, it is left unchanged.
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| − |
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| − | === assign(n, m); ===
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| − | Variable Var(n) is assigned the value m, i.e. Var(n) = m
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| − |
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| − | === assignv(n, m); ===
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| − | Variable Var(n) is assigned the value of Var(m), i.e.<br />
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| − | Var(n) = Var(m).
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| − |
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| − | === addn(n, m); ===
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| − | The value of variable Var(n) is incremented by m, i.e.<br />
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| − | Var(n) = Var(n) + m.
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| − |
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| − | === addv(n, m); ===
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| − |
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| − | The value of variable Var(n) is incremented by the value of Var(m), i.e. Var(n) = Var(n) + m.<br />
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| − | [Now what happens in the above two commands on 8-bit overflow: does the result wrap over 0 or stays 255?<br />
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| − | I.e. is 250 + 10 == 4 or 250 + 10 == 255?]
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| − |
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| − | === subn(n, m); ===
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| − | The value of Var(n) is decremented by m, I.e. Var(n) = Var(n) - m
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| − |
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| − | === subv(n, m); ===
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| − |
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| − | The value of Var(n) is decremented by Var(m), i.e. Var(n) = Var(n) - Var(m).<br />
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| − | [Again, what happens when the result must be negative: is<br />
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| − | 1 - 2 == 255 or 1 - 2 == 0?]
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| − |
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| − | === lindirectn(n, m); ===
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| − | Variable Var(i) where i is the value of Var(n) is assigned a value m, i.e. Var(Var(n)) = m.
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| − |
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| − | === lindirectv(n, m); ===
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| − |
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| − | Variable Var(i) where i is the value of Var(n) is assigned the value of Var(m), i.e. Var(Var(n)) = Var(m).
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| − |
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| − | === rindirect(n, m); ===
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| − | Variable Var(n) is assigned the value of Var(i) where i is the value of Var(m), i.e. Var(n) = Var(Var(m)).
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| − |
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| − | === muln(n, m); ===
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| − |
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| − | Variable Var(n) is multiplied by m, i.e. Var(n) = Var(n) * m.
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| − |
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| − | === mulv(n, m); ===
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| − |
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| − | Variable Var(n) is multiplied by the value of Var(m), i.e.<br />
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| − | Var(n) = Var(n) * Var(m).<br />
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| − | [What happens on overflow?]
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| − |
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| − | === divn(n, m) ===
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| − |
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| − | Variable Var(n) is divided by m, i.e. Var(n) = Var(n) / m.
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| − | === divv(n, m) ===
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| − |
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| − | Variable Var(n) is divided by the value of Var(m),<br />
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| − | i.e. Var(n) = Var(n) / Var(m). [What happens on division by 0?]
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| − |
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| − | === random(n, m, k) ===
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| − |
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| − | Variable Var(k) is assigned a random value in the range between n and m. Now let us consider the commands changing flag values. Remember that a flag can only have a value 0 or 1.
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| − |
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| − | === set(n) ===
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| − |
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| − | flag(n) is set to 1.
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| − | === set.v(n) ===
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| − | flag(i), where i is the value of var (n), is set to 1. i.e.<br />
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| − | flag(var(n)) = 1.
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| − |
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| − | === reset(n) ===
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| − |
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| − | flag(n) is set to 0.
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| − |
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| − | === reset.v(n) ===
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| − |
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| − | flag(i), where i is the value of var (n), is set to 0, i.e.<br />
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| − | flag(var(n)) = 0.
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| − |
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| − | === toggle(n) ===
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| − | flag(n) toggles its value.
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| − |
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| − | === toggle.v(n) ===
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| − |
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| − | flag(i), where i is the value of var (n), i.e. flag(var(n)), toggles is value.
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| − |
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| − | <div align="center">
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| − | Page:
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| − | '''[ 1 ]'''
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| − | [[AGI Command Reference 2|2]]
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| − | [[AGI Command Reference 3|3]]
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| − | [[AGI Command Reference 4|4]]
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| − | [[AGI Command Reference 5|5]]
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| − | [[AGI Command Reference 6|6]]
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| − | [[AGI Command Reference 7|7]]
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| − | [[AGI Command Reference 8|8]]
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| − | [[AGI Command Reference 9|9]]
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| − | [[AGI Command Reference 10|10]]
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| − | [[AGI Command Reference 11|11]]
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| − | [[AGI Command Reference 12|12]]
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| − | [[AGI Command Reference 13|13]]
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| − | [[AGI Command Reference 14|14]]
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| − | [[AGI Command Reference 15|15]]
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| − | [[AGI Command Reference 16|16]]
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| − | </div>
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