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comparison m68k_core_x86.c @ 976:8cdd4ddedd9a

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Properly imlement btst with an immediate destination. Fixes a crash in NHL 95.
author Michael Pavone <pavone@retrodev.com>
date Sat, 23 Apr 2016 12:43:23 -0700
parents 20e30ca7e8a2
children 771875b5f519
comparison
equal deleted inserted replaced
975:c6b19939da7b 976:8cdd4ddedd9a
1585 //b### with memory destination is modulo 8 1585 //b### with memory destination is modulo 8
1586 //x86-64 doesn't support 8-bit bit operations 1586 //x86-64 doesn't support 8-bit bit operations
1587 //so we fake it by forcing the bit number to be modulo 8 1587 //so we fake it by forcing the bit number to be modulo 8
1588 and_ir(code, 7, src_op->base, SZ_D); 1588 and_ir(code, 7, src_op->base, SZ_D);
1589 size = SZ_D; 1589 size = SZ_D;
1590 }
1591 if (dst_op->mode == MODE_IMMED) {
1592 dst_op->base = src_op->base == opts->gen.scratch1 ? opts->gen.scratch2 : opts->gen.scratch1;
1593 mov_ir(code, dst_op->disp, dst_op->base, SZ_B);
1594 dst_op->mode = MODE_REG_DIRECT;
1590 } 1595 }
1591 if (dst_op->mode == MODE_REG_DIRECT) { 1596 if (dst_op->mode == MODE_REG_DIRECT) {
1592 op_rr(code, inst, src_op->base, dst_op->base, size); 1597 op_rr(code, inst, src_op->base, dst_op->base, size);
1593 } else { 1598 } else {
1594 op_rrdisp(code, inst, src_op->base, dst_op->base, dst_op->disp, size); 1599 op_rrdisp(code, inst, src_op->base, dst_op->base, dst_op->disp, size);