Is Decimal equal to 4-byte IBM floating point?

[juliohm]

I am trying to read data from an old file format that stores 4-byte IBM floating points. Anyone familiar with this standard? Does it match the Decimal implementation in this package? Here is the IBM page I could find with a _Decimal32 type, which I am assuming is another name for the 4-byte IBM floating point: https://www.ibm.com/docs/en/zos/2.5.0?topic=specifiers-floating-point-types

If Decimal is indeed equal to IBM's _Decimal32, how can I properly consume bytes from an IO stream? Would the usual read method work with Decimal as the second argument?

io = open(file)
read(io, Decimal)

[juliohm]

Apparently there is another page discussing a hexadecimal floating point type by IBM: https://en.wikipedia.org/wiki/IBM_hexadecimal_floating-point

It is hard to say which standard "4-byte IBM floating point" is.

[juliohm]

Ok, I am almost sure that the latest link contains the definition I need. The old IBM float 32 format is hexadecimal. So probably not equal to what is defined in this package.