LD HL,(ps+d)
Load
Rabbit 4000 Instruction
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| -- |
LD HL,(ps+d) |
9(2,2,1,2,2) |
L = (ps + d)
H = (ps + d + 1) |
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85 d
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LD HL,(PW+d)
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9(2,2,1,2,2)
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L = (PW + d)
H = (PW + d + 1)
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95 d
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LD HL,(PX+d)
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9(2,2,1,2,2)
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L = (PX + d)
H = (PX + d + 1)
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A5 d
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LD HL,(PY+d)
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9(2,2,1,2,2)
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L = (PY + d)
H = (PY + d + 1)
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B5 d
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LD HL,(PZ+d)
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9(2,2,1,2,2)
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L = (PZ + d)
H = (PZ + d + 1)
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Description
Loads HL with the data whose address is treated either as a logical address that will be passed through the
MMU for translation into a physical address or as a physical address that does not need MMU translation.
If ps is 0xFFFFxxxx, i.e., the upper 16 bits are all ones, it represents a logical address. This is called a
"long logical" address. Otherwise, it is a physical address with the low 20 bits or 24 bits being significant
(depending on the memory available).
The address is computed as the sum of ps and the 8-bit signed displacement d.