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parser: fix invalid segment override on EQU FAR pointers #243

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parser: fix invalid segment override on EQU FAR pointers #243

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1ff5298
x86: Fix VCVTPD2PH and add missing VMINPH/VMAXPH AVX512-FP16 instruct…
alexvoste May 30, 2026
f9234c8
parser: fix invalid segment override on EQU FAR pointers
alexvoste Jun 12, 2026
d670838
asm/labels: fix memory leak in local label structures
alexvoste Jun 12, 2026
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6 changes: 5 additions & 1 deletion asm/labels.c
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Original file line number Diff line number Diff line change
Expand Up @@ -210,7 +210,11 @@ static union label *find_label(const char *label, bool create, bool *created)
if (lptr || !create) {
if (created)
*created = false;
return lptr;
if (label_str) {
nasm_free(label_str);
}

return lptr;
}

/* Create a new label... */
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2 changes: 1 addition & 1 deletion asm/parser.c
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Expand Up @@ -1106,7 +1106,7 @@ insn *parse_line(char *buffer, insn *result, const int bits)
* as if it had ended in a comma, but sets the COLON flag
* on the operand further down.
*/
} else if (mref || !far_jmp_ok) {
} else if (mref || (ok_reg && IS_SREG(value->type))) {
/* segment override? */
mref = true;

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14 changes: 11 additions & 3 deletions x86/insns.dat
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Expand Up @@ -5449,9 +5449,9 @@ VCOMISH xmmreg,xmmrm16|sae [rm:fv: evex.lig.np.map5.w0 2F /r] AVX512FP1
VCVTDQ2PH xmmreg|mask|z,xmmrm128|b32 [rm:fv: evex.128.np.map5.w0 5B /r] AVX512FP16,AVX512VL
VCVTDQ2PH xmmreg|mask|z,ymmrm256|b32 [rm:fv: evex.256.np.map5.w0 5B /r] AVX512FP16,AVX512VL
VCVTDQ2PH ymmreg|mask|z,zmmrm512|b32|er [rm:fv: evex.512.np.map5.w0 5B /r] AVX512FP16
VCVTPD2PH xmmreg|mask|z,xmmrm128|b64 [rm:fv: evex.128.66.map5.w1 5A /r] AVX512FP16,AVX512VL
VCVTPD2PH xmmreg|mask|z,ymmrm256|b64 [rm:fv: evex.256.66.map5.w1 5A /r] AVX512FP16,AVX512VL
VCVTPD2PH xmmreg|mask|z,zmmrm512|b64|er [rm:fv: evex.512.66.map5.w1 5A /r] AVX512FP16
VCVTPD2PH xmmreg|mask|z,xmmrm128|b64 [rm:fv: evex.128.66.map5.w1 5a /r] AVX512FP16,AVX512VL
VCVTPD2PH xmmreg|mask|z,ymmrm256|b64 [rm:fv: evex.256.66.map5.w1 5a /r] AVX512FP16,AVX512VL
VCVTPD2PH xmmreg|mask|z,zmmrm512|b64|er [rm:fv: evex.512.66.map5.w1 5a /r] AVX512FP16
VCVTPH2DQ xmmreg|mask|z,xmmrm64|b16 [rm:hv: evex.128.66.map5.w0 5B /r] AVX512FP16,AVX512VL
VCVTPH2DQ ymmreg|mask|z,xmmrm128|b16 [rm:hv: evex.256.66.map5.w0 5B /r] AVX512FP16,AVX512VL
VCVTPH2DQ zmmreg|mask|z,ymmrm256|b16|er [rm:hv: evex.512.66.map5.w0 5B /r] AVX512FP16
Expand Down Expand Up @@ -5682,6 +5682,14 @@ VSUBPH ymmreg|mask|z,ymmreg*,ymmrm256|b16 [rvm:fv: evex.nds.256.np.map5.w0 5c /
VSUBPH zmmreg|mask|z,zmmreg*,zmmrm512|b16|er [rvm:fv: evex.nds.512.np.map5.w0 5c /r] AVX512FP16
VSUBSH xmmreg|mask|z,xmmreg*,xmmrm16|er [rvm:t1s: evex.nds.lig.f3.map5.w0 5c /r] AVX512FP16
VUCOMISH xmmreg,xmmrm16|sae [rm:t1s: evex.lig.np.map5.w0 2e /r] AVX512FP16
VMINPH xmmreg|mask|z,xmmreg*,xmmrm128|b16 [rvm:fv: evex.128.np.map5.w0 5d /r] AVX512FP16,AVX512VL
VMINPH ymmreg|mask|z,ymmreg*,ymmrm256|b16 [rvm:fv: evex.256.np.map5.w0 5d /r] AVX512FP16,AVX512VL
VMINPH zmmreg|mask|z,zmmreg*,zmmrm512|b16|sae [rvm:fv: evex.512.np.map5.w0 5d /r] AVX512FP16
VMINSH xmmreg|mask|z,xmmreg*,xmmrm16|sae [rvm:t1s: evex.lig.f3.map5.w0 5d /r] AVX512FP16
VMAXPH xmmreg|mask|z,xmmreg*,xmmrm128|b16 [rvm:fv: evex.128.np.map5.w0 57 /r] AVX512FP16,AVX512VL
VMAXPH ymmreg|mask|z,ymmreg*,ymmrm256|b16 [rvm:fv: evex.256.np.map5.w0 57 /r] AVX512FP16,AVX512VL
VMAXPH zmmreg|mask|z,zmmreg*,zmmrm512|b16|sae [rvm:fv: evex.512.np.map5.w0 57 /r] AVX512FP16
VMAXSH xmmreg|mask|z,xmmreg*,xmmrm16|sae [rvm:t1s: evex.lig.f3.map5.w0 57 /r] AVX512FP16

;# RAO-INT weakly ordered atomic operations
$dq AADD mem#,reg# [mr: o# np 0f38 fc /r ] RAOINT,SQ,LONG
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