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Emit negative constants correctly.

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This commit is contained in:
David Given 2016-10-29 12:55:21 +02:00
parent 61349389fb
commit acaae765af
1 changed files with 19 additions and 4 deletions
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23
mach/proto/mcg/data.c
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@ -49,13 +49,24 @@ static void emit_header(int desired_section)
}
}
static void writehex(arith data, int size)
{
if (data < 0)
fprintf(outputfile, "-0x%0*lx", size*2, -data);
else
fprintf(outputfile, "0x%0*lx", size*2, data);
}
void data_int(arith data, size_t size, bool is_ro)
{
emit_header(is_ro ? SECTION_ROM : SECTION_DATA);
assert((size == 1) || (size == 2) || (size == 4) || (size == 8));
fprintf(outputfile, "\t.data%d 0x%0*lld\n", size, size*2, data);
fprintf(outputfile, "\t.data%d ", size);
writehex(data, size);
fprintf(outputfile, "\n");
}
void data_float(const char* data, size_t size, bool is_ro)
{
unsigned char buffer[8];
@ -69,9 +80,13 @@ void data_float(const char* data, size_t size, bool is_ro)
fatal("cannot parse floating point constant %s sz %d", data, size);
fprintf(outputfile, "\t!float %s sz %d\n", data, size);
fprintf(outputfile, "\t.data1 0x%02x", buffer[0]);
fprintf(outputfile, "\t.data1 ");
writehex(buffer[0], 1);
for (i=1; i<size; i++)
fprintf(outputfile, ", 0x%02x", buffer[i]);
{
fprintf(outputfile, ", ");
writehex(buffer[0], 1);
}
fprintf(outputfile, "\n");
}
@ -117,7 +132,7 @@ void data_block(const uint8_t* data, size_t size, bool is_ro)
{
if (!first)
fprintf(outputfile, ", ");
fprintf(outputfile, "0x%02x", *start);
writehex(*start, 1);
start++;
first = false;
}