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Merge pull request #390 from ISSOtm/print_types

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Add "print types" to bracketed symbols
This commit is contained in:
Eldred Habert
2019-08-29 20:12:32 +02:00
committed by GitHub
parent c3641321d7 995265c549
commit 6ffa751090
7 changed files with 114 additions and 8 deletions
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29
src/asm/asmy.y
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@@ -1,7 +1,7 @@
/*
* This file is part of RGBDS.
*
* Copyright (c) 1997-2018, Carsten Sorensen and RGBDS contributors.
* Copyright (c) 1997-2019, Carsten Sorensen and RGBDS contributors.
*
* SPDX-License-Identifier: MIT
*/
@@ -75,7 +75,8 @@ static void bankrangecheck(char *name, uint32_t secttype, int32_t org,
out_NewAbsSection(name, secttype, org, bank);
}
size_t symvaluetostring(char *dest, size_t maxLength, char *sym)
size_t symvaluetostring(char *dest, size_t maxLength, char *sym,
const char *mode)
{
size_t length;
@@ -83,6 +84,9 @@ size_t symvaluetostring(char *dest, size_t maxLength, char *sym)
char *src = sym_GetStringValue(sym);
size_t i;
if (mode)
yyerror("Print types are only allowed for numbers");
for (i = 0; src[i] != 0; i++) {
if (i >= maxLength)
fatalerror("Symbol value too long to fit buffer");
@@ -94,8 +98,25 @@ size_t symvaluetostring(char *dest, size_t maxLength, char *sym)
} else {
uint32_t value = sym_GetConstantValue(sym);
int32_t fullLength = snprintf(dest, maxLength + 1, "$%X",
value);
int32_t fullLength;
/* Special cheat for binary */
if (mode && !mode[0]) {
char binary[33]; /* 32 bits + 1 terminator */
char *write_ptr = binary + 32;
fullLength = 0;
binary[32] = 0;
do {
*(--write_ptr) = (value & 1) + '0';
value >>= 1;
fullLength++;
} while(value);
strncpy(dest, write_ptr, maxLength + 1);
} else {
fullLength = snprintf(dest, maxLength + 1,
mode ? : "$%X",
value);
}
if (fullLength < 0) {
fatalerror("snprintf encoding error");