Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) MOTOROLA MICROPROCESSOR & MEMORY TECHNOLOGY GROUP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) M68000 Hi-Performance Microprocessor Division
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) M68060 Software Package
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) Production Release P1.00 -- October 10, 1994
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) M68060 Software Package Copyright © 1993, 1994 Motorola Inc.  All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) THE SOFTWARE is provided on an "AS IS" basis and without warranty.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) To the maximum extent permitted by applicable law,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) MOTOROLA DISCLAIMS ALL WARRANTIES WHETHER EXPRESS OR IMPLIED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) and any warranty against infringement with regard to the SOFTWARE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) (INCLUDING ANY MODIFIED VERSIONS THEREOF) and any accompanying written materials.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) To the maximum extent permitted by applicable law,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) IN NO EVENT SHALL MOTOROLA BE LIABLE FOR ANY DAMAGES WHATSOEVER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) (INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR OTHER PECUNIARY LOSS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) ARISING OF THE USE OR INABILITY TO USE THE SOFTWARE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) Motorola assumes no responsibility for the maintenance and support of the SOFTWARE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) You are hereby granted a copyright license to use, modify, and distribute the SOFTWARE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) so long as this entire notice is retained without alteration in any modified and/or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) redistributed versions, and that such modified versions are clearly identified as such.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) No licenses are granted by implication, estoppel or otherwise under any patents
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) or trademarks of Motorola, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 68060 FLOATING-POINT SOFTWARE PACKAGE (Kernel version)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) -------------------------------------------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) The file fpsp.sa contains the 68060 Floating-Point Software
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) Package. This package is essentially a set of exception handlers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) that can be integrated into an operating system.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) These exception handlers emulate Unimplemented FP instructions,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) instructions using unimplemented data types, and instructions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) using unimplemented addressing modes. In addition, this package
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) includes exception handlers to provide full IEEE-754 compliant
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) exception handling.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) Release file format:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) --------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) The file fpsp.sa is essentially a hexadecimal image of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) release package. This is the ONLY format which will be supported.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) The hex image was created by assembling the source code and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) then converting the resulting binary output image into an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) ASCII text file. The hexadecimal numbers are listed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) using the Motorola Assembly Syntax assembler directive "dc.l"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) (define constant longword). The file can be converted to other
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) assembly syntaxes by using any word processor with a global
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) search and replace function.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) To assist in assembling and linking this module with other modules,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) the installer should add a symbolic label to the top of the file.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) This will allow calling routines to access the entry points
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) of this package.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) The source code fpsp.s has also been included but only for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) documentation purposes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) Release file structure:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) -----------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) (top of module)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	-----------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	|		| - 128 byte-sized section
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67)    (1)  |   Call-Out	| - 4 bytes per entry (user fills these in)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	|		| - example routines in fskeleton.s
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	-----------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	|		| - 8 bytes per entry
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71)    (2)  | Entry Point	| - user does "bra" or "jmp" to this address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	|		|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	-----------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	|		| - code section
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75)    (3)  ~		~
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	|		|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	-----------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) (bottom of module)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) The first section of this module is the "Call-out" section. This section
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) is NOT INCLUDED in fpsp.sa (an example "Call-out" section is provided at
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) the end of the file fskeleton.s). The purpose of this section is to allow
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) the FPSP routines to reference external functions that must be provided
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) by the host operating system. This section MUST be exactly 128 bytes in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) size. There are 32 fields, each 4 bytes in size. Each field corresponds
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) to a function required by the FPSP (these functions and their location are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) listed in "68060FPSP call-outs" below). Each field entry should contain
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) the address of the corresponding function RELATIVE to the starting address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) of the "call-out" section. The "Call-out" section must sit adjacent to the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) fpsp.sa image in memory.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) The second section, the "Entry-point" section, is used by external routines
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) to access the functions within the FPSP. Since the fpsp.sa hex file contains
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) no symbol names, this section contains function entry points that are fixed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) with respect to the top of the package. The currently defined entry-points
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) are listed in section "68060 FPSP entry points" below. A calling routine
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) would simply execute a "bra" or "jmp" that jumped to the selected function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) entry-point.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) For example, if the 68060 hardware took a "Line-F Emulator" exception
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) (vector #11), the operating system should execute something similar to:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	bra	_060FPSP_TOP+128+48
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) (_060FPSP_TOP is the starting address of the "Call-out" section; the "Call-out"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) section is 128 bytes long; and the F-Line FPSP handler entry point is located
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 48 bytes from the top of the "Entry-point" section.)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) The third section is the code section. After entering through an "Entry-point",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) the entry code jumps to the appropriate emulation code within the code section.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 68060FPSP call-outs: (details in fskeleton.s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) --------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 0x000:	_060_real_bsun
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 0x004:	_060_real_snan
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 0x008:	_060_real_operr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 0x00c:	_060_real_ovfl
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 0x010:	_060_real_unfl
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 0x014:	_060_real_dz
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 0x018:	_060_real_inex
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 0x01c:	_060_real_fline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 0x020:	_060_real_fpu_disabled
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 0x024:	_060_real_trap
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 0x028:	_060_real_trace
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 0x02c:	_060_real_access
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 0x030:	_060_fpsp_done
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 0x034:	(Motorola reserved)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 0x038:	(Motorola reserved)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 0x03c:	(Motorola reserved)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 0x040:	_060_imem_read
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 0x044:	_060_dmem_read
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 0x048:	_060_dmem_write
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 0x04c:	_060_imem_read_word
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 0x050:	_060_imem_read_long
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 0x054:	_060_dmem_read_byte
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 0x058:	_060_dmem_read_word
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 0x05c:	_060_dmem_read_long
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 0x060:	_060_dmem_write_byte
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 0x064:	_060_dmem_write_word
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 0x068:	_060_dmem_write_long
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 0x06c:	(Motorola reserved)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 0x070:	(Motorola reserved)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 0x074:	(Motorola reserved)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 0x078:	(Motorola reserved)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 0x07c:	(Motorola reserved)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 68060FPSP entry points:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) -----------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 0x000:	_060_fpsp_snan
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 0x008:	_060_fpsp_operr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 0x010:	_060_fpsp_ovfl
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 0x018:	_060_fpsp_unfl
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 0x020:	_060_fpsp_dz
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 0x028:	_060_fpsp_inex
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 0x030:	_060_fpsp_fline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 0x038:	_060_fpsp_unsupp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 0x040:	_060_fpsp_effadd
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) Miscellaneous:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) --------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) _060_fpsp_snan:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) ----------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) - documented in 3.5 of 060SP spec.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) - Basic flow:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	exception taken ---> enter _060_fpsp_snan --|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 						    |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)             always exits through _060_real_snan <----
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) _060_fpsp_operr:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) ----------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) - documented in 3.5 of 060SP spec.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) - Basic flow:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	exception taken ---> enter _060_fpsp_operr --|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 						     |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)            always exits through _060_real_operr <-----
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) _060_fpsp_dz:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) ----------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) - documented in 3.7 of 060SP spec.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) - Basic flow:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	exception taken ---> enter _060_fpsp_dz   --|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 						    |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)             always exits through _060_real_dz   <----
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) _060_fpsp_inex:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) ----------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) - documented in 3.6 of 060SP spec.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) - Basic flow:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	exception taken ---> enter _060_fpsp_inex --|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 						    |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197)             always exits through _060_real_inex <----
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) _060_fpsp_ovfl:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) ----------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) - documented in 3.4 of 060SP spec.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) - Basic flow:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	exception taken ---> enter _060_fpsp_ovfl --|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 						    |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)             may exit through _060_real_inex     <---|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 						 or |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208)             may exit through _060_real_ovfl     <---|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 						 or |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210)             may exit through _060_fpsp_done     <---|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) _060_fpsp_unfl:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) ----------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) - documented in 3.4 of 060SP spec.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) - Basic flow:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	exception taken ---> enter _060_fpsp_unfl --|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 						    |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)             may exit through _060_real_inex     <---|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 						 or |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220)             may exit through _060_real_unfl     <---|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 						 or |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222)             may exit through _060_fpsp_done     <---|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) _060_fpsp_fline:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) -----------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) - not fully documented in 060SP spec.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) - Basic flow:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	exception taken ---> enter _060_fpsp_fline --|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 						     |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)             -------------------------------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)             |               |                     |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)             v               v                     v
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)    (unimplemented   (fpu disabled)       (possible F-line illegal)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)      stack frame)           |                     v
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)             |               v               special case "fmovecr"?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237)             |         exit through                    |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)             |     _060_real_fpu_disabled        -------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)             |                                   |           |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240)             |               ^                   v           v
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)             |               |                 (yes)        (no)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)             |               |                   v           v
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)             |               |             fpu disabled?   exit through
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)             |               |                   |         _060_real_fline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245)             v               |             -------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)             |               |             |           |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)             |               |             v           v
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248)             |               |-----------(yes)        (no)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)             |                                         |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250)             |----<------------------------------------|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)             |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)             |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)             |----> may exit through _060_real_trace
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254)             |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255)             |----> may exit through _060_real_trap
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)             |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)             |----> may exit through _060_real_bsun
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)             |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)             |----> may exit through _060_fpsp_done
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) _060_fpsp_unsupp:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) ------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) - documented in 3.1 of 060SP spec.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) - Basic flow:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	exception taken ---> enter _060_fpsp_unsupp --|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 						      |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 						      |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)             may exit through _060_real_snan      <----|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 						  or  |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)             may exit through _060_real_operr     <----|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 						  or  |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)             may exit through _060_real_ovfl      <----|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 						  or  |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275)             may exit through _060_real_unfl      <----|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 						  or  |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)             may exit through _060_real_inex      <----|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 						  or  |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279)             may exit through _060_real_trace     <----|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 						  or  |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281)             may exit through _060_fpsp_done      <----|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) _060_fpsp_effadd:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) ------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) - documented in 3.3 of 060 spec.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) - Basic flow:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	exception taken ---> enter _060_fpsp_effadd --|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 						      |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 						      |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291)             may exit through _060_real_trace     <----|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 						  or  |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)      may exit through _060_real_fpu_disabled     <----|
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 						  or  |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295)             may exit through _060_fpsp_done      <----|