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changeset 473:8181ddd707f1
Add "nooutput" pragma
Add the "nooutput" pragma which causes assembly to proceed as normal for
code with the exception that no output is generated for any instructions
under this pragma. The current address is increased as usual and the symbol
table is still constructed. However, no actual output is generated for lines
operating under this pragma.
| author | William Astle <lost@l-w.ca> |
|---|---|
| date | Thu, 01 Nov 2018 23:07:03 -0600 |
| parents | e97f9a302c6a |
| children | 74d0c394666e |
| files | lwasm/lwasm.c lwasm/lwasm.h lwasm/pragma.c |
| diffstat | 3 files changed, 4 insertions(+), 0 deletions(-) [+] |
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--- a/lwasm/lwasm.c Thu Nov 01 23:00:00 2018 -0600 +++ b/lwasm/lwasm.c Thu Nov 01 23:07:03 2018 -0600 @@ -436,6 +436,8 @@ void lwasm_emit(line_t *cl, int byte) { + if (CURPRAGMA(cl, PRAGMA_NOOUTPUT)) + return; if (cl -> as -> output_format == OUTPUT_OBJ && cl -> csect == NULL) { lwasm_register_error(cl -> as, cl, E_INSTRUCTION_SECTION);
--- a/lwasm/lwasm.h Thu Nov 01 23:00:00 2018 -0600 +++ b/lwasm/lwasm.h Thu Nov 01 23:07:03 2018 -0600 @@ -108,6 +108,7 @@ PRAGMA_NEWSOURCE = 1 << 24, // don't use compatibility source format PRAGMA_OPERANDSIZE = 1 << 25, // warn if operand size is bigger than required PRAGMA_EMUEXT = 1 << 26, // enable emulator extensions + PRAGMA_NOOUTPUT = 1 << 27, // disable object code output PRAGMA_CLEARBIT = 1 << 31 // reserved to indicate negated pragma flag status };
--- a/lwasm/pragma.c Thu Nov 01 23:00:00 2018 -0600 +++ b/lwasm/pragma.c Thu Nov 01 23:07:03 2018 -0600 @@ -76,6 +76,7 @@ { "nooldsource", "oldsource", PRAGMA_NEWSOURCE }, { "operandsizewarning", "nooperandsizewarning", PRAGMA_OPERANDSIZE }, { "emuext", "noemuext", PRAGMA_EMUEXT }, + { "nooutput", "output", PRAGMA_NOOUTPUT }, { 0, 0, 0 } };