First pass at moving sky stuff from ../txvu to mips dir.

1 files changed, 117 insertions, 0 deletions

diff --git a/sim/mips/sky-pke.h b/sim/mips/sky-pke.h
new file mode 100644
index 0000000..293e2e8
--- /dev/null
+++ b/sim/mips/sky-pke.h
@@ -0,0 +1,117 @@
+/* Copyright (C) 1998, Cygnus Solutions */
+
+#ifndef H_PKE_H
+#define H_PKE_H
+
+#include "sim-main.h"
+#include "device.h"
+
+
+/* External functions */
+
+void pke0_attach(SIM_DESC sd);
+void pke0_issue();
+void pke1_attach(SIM_DESC sd);
+void pke1_issue();
+
+
+/* Quadword data type */
+
+typedef unsigned int quadword[4];
+
+/* truncate address to quadword */
+#define ADDR_TRUNC_QW(addr) ((addr) & ~0x0f)
+/* extract offset in quadword */
+#define ADDR_OFFSET_QW(addr) ((addr) & 0x0f)
+
+
+/* SCEI memory mapping information */
+
+#define PKE0_REGISTER_WINDOW_START 0x10000800
+#define PKE1_REGISTER_WINDOW_START 0x10000A00
+#define PKE0_FIFO_START            0x10008000
+#define PKE1_FIFO_START            0x10008010
+
+
+/* Quadword indices of PKE registers.  Actual registers sit at bottom
+   32 bits of each quadword. */
+#define PKE_REG_STAT    0x00
+#define PKE_REG_FBRST   0x01
+#define PKE_REG_ERR     0x02
+#define PKE_REG_MARK    0x03
+#define PKE_REG_CYCLE   0x04
+#define PKE_REG_MODE    0x05
+#define PKE_REG_NUM     0x06
+#define PKE_REG_MASK    0x07
+#define PKE_REG_CODE    0x08
+#define PKE_REG_ITOPS   0x09
+#define PKE_REG_BASE    0x0a /* pke1 only */
+#define PKE_REG_OFST    0x0b /* pke1 only */
+#define PKE_REG_TOPS    0x0c /* pke1 only */
+#define PKE_REG_ITOP    0x0d
+#define PKE_REG_TOP     0x0e /* pke1 only */
+#define PKE_REG_DBF     0x0f /* pke1 only */
+#define PKE_REG_R0      0x10
+#define PKE_REG_R1      0x11
+#define PKE_REG_R2      0x12
+#define PKE_REG_R3      0x13
+#define PKE_REG_C0      0x14
+#define PKE_REG_C1      0x15
+#define PKE_REG_C2      0x16
+#define PKE_REG_C3      0x17
+/* one plus last index */
+#define PKE_NUM_REGS    0x18
+
+#define PKE_REGISTER_WINDOW_SIZE  (sizeof(quadword) * PKE_NUM_REGS)
+
+/* virtual addresses for source-addr tracking */
+#define PKE0_SRCADDR    0x20000020
+#define PKE1_SRCADDR    0x20000024
+
+
+/* One row in the FIFO */
+struct fifo_quadword
+{
+  /* 128 bits of data */
+  quadword data;
+  /* source main memory address (or 0: unknown) */
+  address_word source_address;
+};
+
+
+/* PKE internal state: FIFOs, registers, handle to VU friend */
+struct pke_device
+{
+  /* common device info */
+  device dev;
+
+  /* identity: 0=PKE0, 1=PKE1 */
+  int pke_number;
+  int flags;
+
+  address_word register_memory_addr;
+  address_word fifo_memory_addr;
+
+  /* quadword registers */
+  quadword regs[PKE_NUM_REGS];
+
+  /* FIFO */
+  struct fifo_quadword* fifo;
+  int fifo_num_elements; /* no. of quadwords occupied in FIFO */
+  int fifo_buffer_size;  /* no. of quadwords of space in FIFO */
+  FILE* fifo_trace_file; /* or 0 for no trace */
+
+  /* index into FIFO of current instruction */
+  int program_counter; 
+
+};
+
+
+/* Flags for PKE.flags */
+
+#define PKE_FLAG_NONE 0
+/* none at present */
+
+
+
+#endif /* H_PKE_H */