peter/qemu - QEMU hacking for Peter

Age	Commit message (Collapse)	Author	Files	Lines
2017-02-06	target/hppa: Tidy do_cbranch	Richard Henderson	1	-12/+5
	Removes some dead code detected by Covarity. Reported-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-23	target-hppa: Implement floating-point insns	Richard Henderson	1	-0/+728
	Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-23	target-hppa: Implement system and memory-management insns	Richard Henderson	1	-0/+206
	Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-23	target-hppa: Implement loads and stores	Richard Henderson	1	-0/+618
	Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-23	target-hppa: Implement shifts and deposits	Richard Henderson	1	-0/+309
	Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-23	target-hppa: Implement linux-user gateway page	Richard Henderson	1	-4/+81
	For linux, page 0 is mapped as an execute-only gateway. A gateway page is a special bit in the page table that allows a B,GATE insn within that page to raise processor permissions. This is how system calls are implemented for HPPA. Rather than actually map anything here, or handle permissions at all, implement the semantics of the actual linux syscall entry points. Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-23	target-hppa: Implement branches	Richard Henderson	1	-0/+477
	Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-23	target-hppa: Implement basic arithmetic	Richard Henderson	1	-0/+882
	Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-23	target-hppa: Add nullification framework	Richard Henderson	1	-4/+224
	The HPPA cpu has a unique form of predicated execution in which almost any instruction can set the PSW[N] (or "nullify") bit, which suppresses execution (and even decoding) of the following instruction. Execution of a nullified insn clears the PSW[N] bit. This adds a generic framework for branching over nullified insns, or for sufficiently simple insns, transforming the writeback of the result to a conditional move. In the process, we want to be able to represent PSW[N] as a TCG condition, which implies management of the related tcg temps. Signed-off-by: Richard Henderson <rth@twiddle.net>
2017-01-23	target-hppa: Add framework and enable compilation	Richard Henderson	1	-0/+429
	This is just about the minimum required to enable compilation without actually executing any instructions. This contains the HPPACPU structure and the required callbacks, the gdbstub, the basic translation loop, and a translate_one function that always results in an illegal instruction. Signed-off-by: Richard Henderson <rth@twiddle.net>