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https://opencores.org/ocsvn/lattice6502/lattice6502/trunk
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[/] - Rev 6
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Last modification
- Rev 6, 2010-12-14 21:44:40 GMT
- Author: stanley82
- Log message:
- IRQ, NMI fixed, shift instructions fixed. RAM increased to 2K, expanded usrcode.asm to test
instructions, couple of instructions fixed clv, . Combined out_dat1 and out_dat2 into out_dat to save
LUTs and updated jsr. Fixed stack to push down pull up per a real 6502. Processor sta irq and
sta nmi trigger the interrupts see usrcode.asm.
