ST Memory Map
trpl4ret
1 1 5 8 - 1 1 6 1 ( $ 4 8 6 - $ 4 8 9 )
S av ed trap 1 4 re tu rn ad d res s.
criticret
1 1 6 2 - 1 1 6 5 ($ 4 8 A - $ 4 8 D )
S av ed re tu rn ad d re ss fo r etv
__
critic ve cto r.
themd
1 1 6 6 - 1 1 8 1 ( $ 4 8 E - $ 4 9 D )
T he th e M D (m em o ry d es crip to r) str u ctu re th a t is initialized b y th e
G e tm p b () call. T his s tru ctu re m a y n o t b e ch an g ed o n ce G E M D O S is ini
tialized .
__
md
1 1 8 2 - 1 1 8 5 ( $ 4 9 E - $ 4 A 1 )
P o in te r to ad d itio n al m e m o ry d esc rip to rs.
savptr
1 1 8 6 - 1 1 8 9 < $ 4 A 2 - $ 4 A 5 )
P o in ter to th e bu ffer th e B IO S u se s to s av e re giste r va lu es.
__
nflops
1 1 9 0 - 1 1 9 1 ($ 4 A 6 - $ 4 A 7 )
N u m b er o f flo pp y d riv es co n n ec te d to th e sy stem (0, 1 , o r 2 ).
con
__
state
1 1 9 2 - 1 1 9 5 ($ 4 A 8 - $ 4 A B )
V e cto r fo r co n so le o u tp u t ro u tin es , w h ich ca n b e se t to p o in t to va rio u s
E sc fu nction s.
save
_
row
1 1 9 6 - 1 1 9 7 ($ 4 A C - $ 4 A D )
T h e ro w n u m b er is sa v ed tem p o ra rily in th is b uffer w h e n p ositio nin g th e
c u rso r w ith th e V T -52 E sc-Y co m m an d .
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