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Add the AMI Excalibur, a VLB OPTi 596/597 machine.

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Also adds emulation of the OPTi 5x7 chipset, and introduces a clock divider for VLB on 64-bit bus systems.
This commit is contained in:
nerd73
2020-06-05 10:22:59 -06:00
parent 9fb12c323e
commit 3f0adb5211
12 changed files with 175 additions and 15 deletions
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7
src/cpu_common/cpu.h
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@@ -52,6 +52,7 @@ enum {
CPU_Cx486DX4,
CPU_Am5x86,
CPU_Cx5x86,
CPU_P24T,
CPU_WINCHIP, /* 586 class CPUs */
CPU_WINCHIP2,
CPU_PENTIUM,
@@ -370,7 +371,7 @@ COMPILE_TIME_ASSERT(sizeof(cpu_state) <= 128)
/* Global variables. */
extern int cpu_iscyrix;
extern int cpu_16bitbus;
extern int cpu_16bitbus, cpu_64bitbus;
extern int cpu_busspeed, cpu_pci_speed;
extern int cpu_multi;
extern double cpu_dmulti;
@@ -379,8 +380,8 @@ extern int cpu_cyrix_alignment; /*Cyrix 5x86/6x86 only has data misalignment
extern int is8086, is286, is386, is486, is486sx, is486dx, is486sx2, is486dx2, isdx4;
extern int is_am486, is_pentium, is_k5, is_k6, is_p6;
extern int hascache;
extern int isibm486;
extern int hascache;
extern int isibm486;
extern int is_rapidcad;
extern int hasfpu;
#define CPU_FEATURE_RDTSC (1 << 0)