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You can use the predefined symbols `r0', `r1', `r2', `r3', `r4', `r5', `r6', and `r7' to refer to the H8/500 registers.
The H8/500 also has these control registers:
cp
code pointer
dp
data pointer
bp
base pointer
tp
stack top pointer
ep
extra pointer
sr
status register
ccr
condition code register
All registers are 16 bits long. To represent 32 bit numbers, use two
adjacent registers; for distant memory addresses, use one of the segment
pointers (cp
for the program counter; dp
for
r0
-r3
; ep
for r4
and r5
; and
tp
for r6
and r7
.
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