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DynASM/ARM64: Fix checks for scaled immediates.

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This commit is contained in:
Mike Pall 2015-01-07 13:17:11 +01:00
parent 0a5045c34e
commit 1b1bd08d3c
1 changed files with 3 additions and 2 deletions
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5
dynasm/dasm_arm64.h
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@ -281,8 +281,9 @@ void dasm_put(Dst_DECL, int start, ...)
b[pos++] = ofs; /* Store pass1 offset estimate. */ b[pos++] = ofs; /* Store pass1 offset estimate. */
break; break;
case DASM_IMM: case DASM_IMM:
#ifdef DASM_CHECKS
CK((n & ((1<<((ins>>10)&31))-1)) == 0, RANGE_I); CK((n & ((1<<((ins>>10)&31))-1)) == 0, RANGE_I);
n >>= ((ins>>10)&31);
#ifdef DASM_CHECKS
if ((ins & 0x8000)) if ((ins & 0x8000))
CK(((n + (1<<(((ins>>5)&31)-1)))>>((ins>>5)&31)) == 0, RANGE_I); CK(((n + (1<<(((ins>>5)&31)-1)))>>((ins>>5)&31)) == 0, RANGE_I);
else else
@ -451,7 +452,7 @@ int dasm_encode(Dst_DECL, void *buffer)
break; break;
case DASM_LABEL_PC: break; case DASM_LABEL_PC: break;
case DASM_IMM: case DASM_IMM:
cp[-1] |= ((n>>((ins>>10)&31)) & ((1<<((ins>>5)&31))-1)) << (ins&31); cp[-1] |= (n & ((1<<((ins>>5)&31))-1)) << (ins&31);
break; break;
case DASM_IMM6: case DASM_IMM6:
cp[-1] |= ((n&31) << 19) | ((n&32) << 26); cp[-1] |= ((n&31) << 19) | ((n&32) << 26);