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Add support for .align directive.

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This commit is contained in:
Michael Munday 2016-12-02 14:35:33 -05:00
parent 7181c391bd
commit 3ec573e750
1 changed files with 5 additions and 4 deletions
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9
dynasm/dasm_s390x.h
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@ -215,7 +215,7 @@ void dasm_put(Dst_DECL, int start, ...)
case DASM_REL_EXT:
break;
case DASM_ALIGN:
ofs += (ins & 255);
ofs += *p++;
b[pos++] = ofs;
break;
case DASM_REL_LG:
@ -344,7 +344,7 @@ int dasm_link(Dst_DECL, size_t * szp)
case DASM_REL_EXT:
break;
case DASM_ALIGN:
ofs -= (b[pos++] + ofs) & (ins & 255);
ofs -= (b[pos++] + ofs) & *p++;
break;
case DASM_REL_LG:
case DASM_REL_PC:
@ -410,9 +410,10 @@ int dasm_encode(Dst_DECL, void *buffer)
n = DASM_EXTERN(Dst, (unsigned char *)cp, (ins & 2047), 1) - 4;
goto patchrel;
case DASM_ALIGN:
ins &= 255;
ins = *p++;
/* TODO: emit 4-byte noprs instead of 2-byte nops where possible. */
while ((((char *)cp - base) & ins))
*cp++ = 0x0707;
*cp++ = 0x0700; /* nop */
break;
case DASM_REL_LG:
CK(n >= 0, UNDEF_LG);