Using and Porting GNU CC
ASM_OUTPUT_LONG_DOUBLE (stream, value)
ASM_OUTPUT_DOUBLE (stream, value)
ASM_OUTPUT_FLOAT (stream, value)
ASM_OUTPUT_THREE_QUARTER_FLOAT (stream, value)
ASM_OUTPUT_SHORT_FLOAT (stream, value)
ASM_OUTPUT_BYTE_FLOAT (stream, value)
QFmode, respectively, whose value is value. value will be a C expression of type
REAL_VALUE_TYPE. Macros such as
REAL_VALUE_TO_TARGET_DOUBLEare useful for writing these definitions.
ASM_OUTPUT_QUADRUPLE_INT (stream, exp)
ASM_OUTPUT_DOUBLE_INT (stream, exp)
ASM_OUTPUT_INT (stream, exp)
ASM_OUTPUT_SHORT (stream, exp)
ASM_OUTPUT_CHAR (stream, exp)
output_addr_const (stream, exp)' to output this value as an assembler expression.
For sizes larger than
UNITS_PER_WORD, if the action of a macro
would be identical to repeatedly calling the macro corresponding to
a size of
UNITS_PER_WORD, once for each word, you need not define
ASM_OUTPUT_BYTE (stream, value)
ASM_OUTPUT_ASCII (stream, ptr, len)
char *and len a C expression of type
If the assembler has a
.ascii pseudo-op as found in the
Berkeley Unix assembler, do not define the macro
ASM_OUTPUT_POOL_PROLOGUE (file funname fundecl size)
If no constant-pool prefix is required, the usual case, this macro need not be defined.
ASM_OUTPUT_SPECIAL_POOL_ENTRY (file, x, mode, align, labelno, jumpto)
The argument file is the standard I/O stream to output the
assembler code on. x is the RTL expression for the constant to
output, and mode is the machine mode (in case x is a
const_int'). align is the required alignment for the value
x; you should output an assembler directive to force this much
The argument labelno is a number to use in an internal label for the address of this pool entry. The definition of this macro is responsible for outputting the label definition at the proper place. Here is how to do this:
ASM_OUTPUT_INTERNAL_LABEL (file, "LC", labelno);
When you output a pool entry specially, you should end with a
goto to the label jumpto. This will prevent the same pool
entry from being output a second time in the usual manner.
You need not define this macro if it would do nothing.
If you do not define this macro, the default is that only
the character `
;' is treated as a logical line separator.
#define ASM_OPEN_PAREN "(" #define ASM_CLOSE_PAREN ")"
These macros are provided by `
real.h' for writing the definitions
ASM_OUTPUT_DOUBLE and the like:
REAL_VALUE_TO_TARGET_SINGLE (x, l)
REAL_VALUE_TO_TARGET_DOUBLE (x, l)
REAL_VALUE_TO_TARGET_LONG_DOUBLE (x, l)
REAL_VALUE_TYPE, to the target's floating point representation, and store its bit pattern in the array of
long intwhose address is l. The number of elements in the output array is determined by the size of the desired target floating point data type: 32 bits of it go in each
long intarray element. Each array element holds 32 bits of the result, even if
long intis wider than 32 bits on the host machine.
The array element values are designed so that you can print them out
fprintf in the order they should appear in the target
REAL_VALUE_TO_DECIMAL (x, format, string)
REAL_VALUE_TYPE, to a decimal number and stores it as a string into string. You must pass, as string, the address of a long enough block of space to hold the result.
The argument format is a
printf-specification that serves
as a suggestion for how to format the output string.