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Implement some boolean operations.

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This commit is contained in:
Michael Munday 2016-12-21 12:49:53 -05:00
parent ae38a6913e
commit 8518df8e56
1 changed files with 41 additions and 6 deletions
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47
src/vm_s390x.dasc
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@ -1381,8 +1381,28 @@ static void build_ins(BuildCtx *ctx, BCOp op, int defop)
| stg r0, 0(r0)
break;
case BC_ISTC: case BC_ISFC: case BC_IST: case BC_ISF:
| stg r0, 0(r0)
| stg r0, 0(r0)
| ins_AD // RA = dst or unused, RD = src, JMP with RD = target
| sllg RD, RD, 3(r0)
| sllg RA, RA, 3(r0)
| lg ITYPE, 0(RD, BASE)
| la PC, 4(PC)
if (op == BC_ISTC || op == BC_ISFC) {
| lgr RB, ITYPE
}
| srag ITYPE, ITYPE, 47(r0)
| clfi ITYPE, LJ_TISTRUECOND
if (op == BC_IST || op == BC_ISTC) {
| jhe >1
} else {
| jl >1
}
if (op == BC_ISTC || op == BC_ISFC) {
| stg RB, 0(RA, BASE)
}
| llgh RD, PC_RD
| branchPC RD
|1: // Fallthrough to the next instruction.
| ins_next
break;
case BC_ISTYPE:
| stg r0, 0(r0)
@ -1401,8 +1421,18 @@ static void build_ins(BuildCtx *ctx, BCOp op, int defop)
| ins_next_
break;
case BC_NOT:
| stg r0, 0(r0)
| stg r0, 0(r0)
| ins_AD // RA = dst, RD = src
| sllg RD, RD, 3(r0)
| sllg RA, RA, 3(r0)
| lg RB, 0(RD, BASE)
| srag RB, RB, 47(r0)
| load_false RC
| cghi RB, LJ_TTRUE
| je >1 // TODO: Maybe do something fancy to avoid the jump?
| load_true RC
|1:
| stg RC, 0(RA, BASE)
| ins_next
break;
case BC_UNM:
| stg r0, 0(r0)
@ -1598,8 +1628,13 @@ static void build_ins(BuildCtx *ctx, BCOp op, int defop)
| ins_next
break;
case BC_KPRI:
| stg r0, 0(r0)
| stg r0, 0(r0)
| ins_AD // RA = dst, RD = primitive type (~)
| sllg RA, RA, 3(r0)
| sllg RD, RD, 47(r0)
| lghi TMPR2, -1
| xgr RD, TMPR2 // not
| stg RD, 0(RA, BASE)
| ins_next
break;
case BC_KNIL:
| stg r0, 0(r0)