aboutsummaryrefslogtreecommitdiff
path: root/target-ppc/mfrom_table_gen.c
diff options
context:
space:
mode:
authorj_mayer <j_mayer@c046a42c-6fe2-441c-8c8c-71466251a162>2007-03-07 08:32:30 +0000
committerj_mayer <j_mayer@c046a42c-6fe2-441c-8c8c-71466251a162>2007-03-07 08:32:30 +0000
commit76a66253e5e48f1744f689041c1c21cedcaff630 (patch)
treec1003bd73ab8e2cbfe4a05c5b3f497bc2573fa4e /target-ppc/mfrom_table_gen.c
parent1c7b3754f68382941a1921e578ead25d97d116fb (diff)
downloadqemu-arm-76a66253e5e48f1744f689041c1c21cedcaff630.tar.gz
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
Diffstat (limited to 'target-ppc/mfrom_table_gen.c')
-rw-r--r--target-ppc/mfrom_table_gen.c33
1 files changed, 33 insertions, 0 deletions
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 <stdint.h>
+#include <stdio.h>
+#include <math.h>
+
+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;
+}