Handwritten asm: OS functions, libm_vals (#1821)

* Handwritten asm: OS functions, libm_vals

* rm hardware_regs.ld

* andi -> and, addiu -> addu

* CACHE macro

include/PR/rdb.h

@@ -0,0 +1,80 @@
+#ifndef PR_RDB_H
+#define PR_RDB_H
+
+/* U64 side address */
+#define RDB_BASE_REG            0xC0000000
+#define RDB_WRITE_INTR_REG      (RDB_BASE_REG + 0x8)
+#define RDB_READ_INTR_REG       (RDB_BASE_REG + 0xC)
+#define RDB_BASE_VIRTUAL_ADDR   0x80000000
+
+/* packet type  Have six bits, so can have up to 63 types */
+#define RDB_TYPE_INVALID                0
+#define RDB_TYPE_GtoH_PRINT             1
+#define RDB_TYPE_GtoH_FAULT             2
+#define RDB_TYPE_GtoH_LOG_CT            3
+#define RDB_TYPE_GtoH_LOG               4
+#define RDB_TYPE_GtoH_READY_FOR_DATA    5
+#define RDB_TYPE_GtoH_DATA_CT           6
+#define RDB_TYPE_GtoH_DATA              7
+#define RDB_TYPE_GtoH_DEBUG             8
+#define RDB_TYPE_GtoH_RAMROM            9
+#define RDB_TYPE_GtoH_DEBUG_DONE        10
+#define RDB_TYPE_GtoH_DEBUG_READY       11
+#define RDB_TYPE_GtoH_KDEBUG            12
+#define RDB_TYPE_GtoH_PROF_DATA         22
+
+
+#define RDB_TYPE_HtoG_LOG_DONE          13
+#define RDB_TYPE_HtoG_DEBUG             14
+#define RDB_TYPE_HtoG_DEBUG_CT          15
+#define RDB_TYPE_HtoG_DATA              16
+#define RDB_TYPE_HtoG_DATA_DONE         17 
+#define RDB_TYPE_HtoG_REQ_RAMROM        18
+#define RDB_TYPE_HtoG_FREE_RAMROM       19
+#define RDB_TYPE_HtoG_KDEBUG            20
+#define RDB_TYPE_HtoG_PROF_SIGNAL       21
+
+
+#define RDB_PROF_ACK_SIG            1
+#define RDB_PROF_FLUSH_SIG          2
+#define PROF_BLOCK_SIZE             2048
+
+#define RDB_LOG_MAX_BLOCK_SIZE      0x8000
+#define RDB_DATA_MAX_BLOCK_SIZE     0x8000
+
+
+/* GIO side address */
+#define GIO_RDB_BASE_REG        0xBF480000
+#define GIO_RDB_WRITE_INTR_REG  (GIO_RDB_BASE_REG + 0x8)
+#define GIO_RDB_READ_INTR_REG   (GIO_RDB_BASE_REG + 0xC)
+
+/* minor device number */
+#define GIO_RDB_PRINT_MINOR     1
+#define GIO_RDB_DEBUG_MINOR     2
+
+/* interrupt bit */
+#define GIO_RDB_WRITE_INTR_BIT  0x80000000
+#define GIO_RDB_READ_INTR_BIT   0x40000000
+
+/* debug command */
+#define DEBUG_COMMAND_NULL      0
+#define DEBUG_COMMAND_MEMORY    1
+#define DEBUG_COMMAND_REGISTER  2
+#define DEBUG_COMMAND_INVALID   255
+
+/* debug state */
+#define DEBUG_STATE_NULL    0
+#define DEBUG_STATE_RECEIVE 1
+#define DEBUG_STATE_INVALID 255
+
+#if defined(_LANGUAGE_C) || defined(_LANGUAGE_C_PLUS_PLUS)
+
+typedef struct {
+    unsigned type : 6;      /* 0: invalid, 1: print, 2: debug */
+    unsigned length : 2;    /* 1, 2, or 3 */
+    char buf[3];            /* character buffer */
+} rdbPacket;
+
+#endif
+
+#endif