From 76a66253e5e48f1744f689041c1c21cedcaff630 Mon Sep 17 00:00:00 2001 From: j_mayer Date: Wed, 7 Mar 2007 08:32:30 +0000 Subject: Great PowerPC emulation code resynchronisation and improvments: - Add status file to make regression tracking easier - Move all micro-operations helpers definitions into a separate header: should never be seen outside of op.c - Update copyrights - Add new / missing PowerPC CPU definitions - Add definitions for PowerPC BookE - Add support for PowerPC 6xx/7xx software driven TLBs Allow use of PowerPC 603 as an example - Add preliminary code for POWER, POWER2, PowerPC 403, 405, 440, 601, 602 and BookE support - Avoid compiling priviledged only resources support for user-mode emulation - Remove unused helpers / micro-ops / dead code - Add instructions usage statistics dump: useful to figure which instructions need strong optimizations. - Micro-operation fixes: * add missing RETURN in some micro-ops * fix prototypes * use softfloat routines for all floating-point operations * fix tlbie instruction * move some huge micro-operations into helpers - emulation fixes: * fix inverted opcodes for fcmpo / fcmpu * condition register update is always to be done after the whole instruction has completed * add missing NIP updates when calling helpers that may generate an exception - optimizations and improvments: * optimize very often used instructions (li, mr, rlwixx...) * remove specific micro-ops for rarely used instructions * add routines for addresses computations to avoid bugs due to multiple different implementations * fix TB linking: do not reset T0 at the end of every TB. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2473 c046a42c-6fe2-441c-8c8c-71466251a162 --- target-ppc/mfrom_table_gen.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 target-ppc/mfrom_table_gen.c (limited to 'target-ppc/mfrom_table_gen.c') diff --git a/target-ppc/mfrom_table_gen.c b/target-ppc/mfrom_table_gen.c new file mode 100644 index 0000000000..ab4b1cc0bd --- /dev/null +++ b/target-ppc/mfrom_table_gen.c @@ -0,0 +1,33 @@ +#define _GNU_SOURCE +#include +#include +#include + +int main (void) +{ + double d; + uint8_t n; + int i; + + printf("static const uint8_t mfrom_ROM_table[602] =\n{\n "); + for (i = 0; i < 602; i++) { + /* Extremly decomposed: + * -T0 / 256 + * T0 = 256 * log10(10 + 1.0) + 0.5 + */ + d = -i; + d /= 256.0; + d = exp10(d); + d += 1.0; + d = log10(d); + d *= 256; + d += 0.5; + n = d; + printf("%3d, ", n); + if ((i & 7) == 7) + printf("\n "); + } + printf("\n};\n"); + + return 0; +} -- cgit v1.2.1