This function is used to read or write (instruction) the dword 0 of the argument with sign extension.
Reading:
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i32 sdw0 (i32|u32|real arg)
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dword argument.
From RTE 33.7.1 it can be any expression
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Returns the dword of the argument with the sign
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Rule, Task
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From RTE 33.9.0 accessing a non-existing dword returns an error
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Writing (Instruction):
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sdw0 (i32|u32|real arg) = i32 value
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dword argument
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Value to be imposed in arg
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Rule, Task
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From RTE 33.9.0 accessing a non-existing dword returns an error
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Example of use:
REAL pippo1, pippo2, pippo3, pippo4
REAL pippo5, pippo6, pippo7, pippo8
INT prova[4]
prova[0] = 0x1122
prova[1] = 0x8001
prova[2] = 0x5566
prova[3] = 0x7788
pippo1 = sdw0(prova[0])
pippo2 = sdw1(prova[0])
pippo3 = sdw0(prova[2])
pippo4 = sdw1(prova[2])
pippo5 = dw0(prova[0])
pippo6 = dw1(prova[0])
pippo7 = dw0(prova[2])
pippo8 = dw1(prova[2])
REAL pluto1, pluto2, pluto3, pluto4
REAL pluto5, pluto6, pluto7, pluto8
INT prova2[4]
prova2[0] = 0x1122
prova2[1] = 0x2233
prova2[2] = 0x5566
prova2[3] = 0x7788
pluto1 = sdw0(prova2[0])
pluto2 = sdw1(prova2[0])
pluto3 = sdw0(prova2[2])
pluto4 = sdw1(prova2[2])
pluto5 = dw0(prova2[0])
pluto6 = dw1(prova2[0])
pluto7 = dw0(prova2[2])
pluto8 = dw1(prova2[2])
I16 pippo = 123
sdw1(pippo) = 9
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