Created
April 9, 2012 06:13
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A very short demonstration for mul and timer.
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| ; Probano unidad de multiplicacion de JPU16 | |
| ; Autor: Jonathan Castro | |
| ; JPU16ASM | |
| ; | |
| ; | |
| TMRCTRL equ 0xA000 | |
| TMRPR equ 0x6000 | |
| TMRCNT equ 0x2000 | |
| DDRA equ 0x0001 | |
| PORTA equ 0x0002 | |
| data | |
| operando1: word 1 | |
| operando2: word 1 | |
| resultado: word 1 | |
| code | |
| move r0, 0 | |
| move [operando1], r0 | |
| move [operando2], r0 | |
| move r1, 48828 | |
| out TMRPR, r1 | |
| move r1, 0x003B | |
| out TMRCTRL, r1 | |
| move r1, 0xFFFF | |
| out DDRA, r1 | |
| out PORTA, r0 | |
| lazo: | |
| nop | |
| nop | |
| jmp lazo | |
| ISR: | |
| move r4, [operando2] | |
| add r4, 1 | |
| cmp r4, 10 | |
| jl operar | |
| move r4, 0 | |
| move r5, [operando1] | |
| add r5, 1 | |
| cmp r5, 10 | |
| jl operar | |
| move r5, 0 | |
| operar: | |
| move r6, r4 | |
| mul r6, r5 | |
| move [resultado], r6 | |
| out PORTA, r6 | |
| move [operando2], r4 | |
| move [operando1], r5 | |
| ieret | |
| code 0x1FF | |
| jmp ISR | |
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