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|
pc->asr
pm->ir, pc++
k2->upc
direct:
ir->asr, k1->upc
immediate:
pc->asr, pc++, k1->upc
indirect:
ir->asr
pm->asr, k1->upc
indexed:
ir->ar
; ar+gr3->ar
!1184000
ar->asr, k1->upc
load:
pm->grx, 0->upc
store:
grx->pm, 0->upc
add:
pm->ar
ar+grx->ar
ar->grx, 0->upc
sub:
pm->ar
ar-grx->ar
ar->grx, 0->upc
and:
pm->ar
ar&grx->ar
ar->grx, 0->upc
lsr:
grx->ar
pm->lc
lsr_loop:
l=1? lsr_exit
lc--, lsr, b lsr_loop
lsr_exit:
ar->grx, 0->upc
bra:
0->upc
bne:
0->upc
halt:
halt
cmp:
pm->ar
ar-grx->ar, 0->upc
bge:
0->upc
beq:
0->upc
end:
b end
|
