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+; @(#)fpsymbol.h 1.4 90/10/14 20:55:59, Copyright 1989, 1990 AMD
+; start of fpsymbol.h file
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+; Copyright 1989, 1990 Advanced Micro Devices, Inc.
+;
+; This software is the property of Advanced Micro Devices, Inc (AMD) which
+; specifically grants the user the right to modify, use and distribute this
+; software provided this notice is not removed or altered. All other rights
+; are reserved by AMD.
+;
+; AMD MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS
+; SOFTWARE. IN NO EVENT SHALL AMD BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL
+; DAMAGES IN CONNECTION WITH OR ARISING FROM THE FURNISHING, PERFORMANCE, OR
+; USE OF THIS SOFTWARE.
+;
+; So that all may benefit from your experience, please report any problems
+; or suggestions about this software to the 29K Technical Support Center at
+; 800-29-29-AMD (800-292-9263) in the USA, or 0800-89-1131 in the UK, or
+; 0031-11-1129 in Japan, toll free. The direct dial number is 512-462-4118.
+;
+; Advanced Micro Devices, Inc.
+; 29K Support Products
+; Mail Stop 573
+; 5900 E. Ben White Blvd.
+; Austin, TX 78741
+; 800-292-9263
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;
+; ______________________________________________________________________
+;|______________________________________________________________________|
+;| |
+;| SYMBOLS FOR DEFINING THE INSTRUCTION WORD |
+;| |
+;|______________________________________________________________________|
+;|______________________________________________________________________|
+;
+;
+; Revision Information:
+;------------------------------------------------------------------------
+; Date: March 31, 1989
+; Author: Roy Carlson per Bob Perlman and Richard Relph
+;
+; The symbols section describing transactions was modified to contain
+; several new symbol values. The reason for the change was to force the
+; CA bit to be set--and remain set--once code accesses the coprocessor.
+;
+; Future operating systems will use the Coprocessor Active (CA) bit in
+; the Old Processor Status Register to determine whether or not to save
+; coprocessor state, etc.. This means that the instruction control field
+; Set Coprocessor Active (SA) bit should be used as follows:
+;
+; (1) any coprocessor STORE must have its SA bit set to 1,
+; so as to set CA,
+;
+; and (2) any coprocessor LOAD must have its SA bit set to 0,
+; so as to prevent clearing CA.
+;------------------------------------------------------------------------
+; Date: 89/01/30 12:32:13; author: jim; lines added/del: 5/4
+; Corrected CP_IEEE_GRADUAL_UFLOW_MODE and CP_RMS_MASK.
+; Added CP_EXCPS_POSITION, the ls bit of the CP_XXX_EXCP ensemble.
+; fixed a few typos in comments.
+;------------------------------------------------------------------------
+; Date: 89/01/23 18:00:26; author: jim; lines added/del: 488/468
+; Richard O. Parker
+; January 5, 1989
+;
+; 1) The _cp_prec_field in the "cp_build_inst", "cp_build_inst_h"
+; and "cp_build_inst_l" macros was not being defined in the case
+; of Am29K-supported floating-point instructions (e.g., FADD, FSUB,
+; DADD, etc.).
+;
+; 2) The multiplexor select codes in the opcode table entries
+; associated with the "cp_build_inst", "cp_build_inst_h" and
+; "cp_build_inst_l" macros, pertaining to the CONVERT_F_TO_D
+; and CONVERT_D_TO_F instructions were incorrect.
+;------------------------------------------------------------------------
+; Date: 88/12/20 14:28:26; author: jim; lines added/del: 1/1
+; Larry Westerman corrected definition of CP_MOVE_P.
+; Version required for Release 1.1 of the Intrinsics shipped 12/12/88.
+;------------------------------------------------------------------------
+; Date: 88/11/18 15:44:45; author: law;
+; Initial revision
+;
+;
+;========================================================================
+;
+; The following mnemonics are used to specify the 14 LSBs of the
+; instruction word (fields SIP, SIQ, SIT, SIF, IF, and CO).
+;
+;========================================================================
+;
+; floating point operation codes.
+;
+ .equ CP_PASS_P, 0x00000000 ; pass P
+ .equ CP_MINUSP, 0x00000040 ; -P
+ .equ CP_ABSP, 0x00000080 ; |P|
+ .equ CP_SIGNT_TIMES_ABSP, 0x00000C00 ; SIGN(T) * |P|
+;
+ .equ CP_P_PLUS_T, 0x00000001 ; P + T
+ .equ CP_P_MINUS_T, 0x00000101 ; P - T
+ .equ CP_MINUSP_PLUS_T, 0x00001001 ; -P + T
+ .equ CP_MINUSP_MINUS_T, 0x00001101 ; -P - T
+ .equ CP_ABS_P_PLUS_T, 0x00000081 ; |P + T|
+ .equ CP_ABS_P_MINUS_T, 0x00000181 ; |P - T|
+ .equ CP_ABSP_PLUS_ABST, 0x00002201 ; |P| + |T|
+ .equ CP_ABSP_MINUS_ABST, 0x00002301 ; |P| - |T|
+ .equ CP_ABS_ABSP_MINUS_ABST, 0x00002381 ; ||P| - |T||
+;
+ .equ CP_P_TIMES_Q, 0x00000002 ; P * Q
+ .equ CP_MINUSP_TIMES_Q, 0x00001002 ; -P * Q
+ .equ CP_ABS_P_TIMES_Q, 0x00000082 ; |P * Q|
+;
+ .equ CP_COMPARE_P_AND_T, 0x00000103 ; compare P and T
+;
+ .equ CP_MAX_P_AND_T, 0x00000104 ; max P,T
+ .equ CP_MAX_ABSP_AND_ABST, 0x00002304 ; max |P|, |T|
+;
+ .equ CP_MIN_P_AND_T, 0x00001005 ; min P,T
+ .equ CP_MIN_ABSP_AND_ABST, 0x00003205 ; min |P|,|T|
+ .equ CP_LIMIT_P_TO_MAGT, 0x00003A05 ; limit P to magnitude of T
+;
+ .equ CP_CONVERT_T_TO_INT, 0x00000006 ; convert T to integer
+;
+ .equ CP_SCALE_T_TO_INT_BY_Q, 0x00000007 ; scale T to integer by Q
+;
+ .equ CP_PQ_PLUS_T, 0x00000008 ; (P * Q) + T
+ .equ CP_MINUSPQ_PLUS_T, 0x00001008 ; (-P * Q) + T
+ .equ CP_PQ_MINUS_T, 0x00000108 ; (P * Q) - T
+ .equ CP_MINUSPQ_MINUS_T, 0x00001108 ; (-P * Q) - T
+ .equ CP_ABSPQ_PLUS_ABST, 0x00002A08 ; |(P * Q)| + T
+ .equ CP_MINUSABSPQ_PLUS_ABST, 0x00003A08 ;-|(P * Q)| + T
+ .equ CP_ABSPQ_MINUS_ABST, 0x00002B08 ; |(P * Q)| - |T|
+;
+ .equ CP_ROUND_T_TO_INT, 0x00000009 ; round T to integral value
+;
+ .equ CP_RECIPROCAL_OF_P, 0x0000000A ; reciprocal of P
+;
+ .equ CP_CONVERT_T_TO_ALT, 0x0000000B ; convert T to alt. f.p. format
+ .equ CP_CONVERT_T_FROM_ALT, 0x0000000C ; convert T to alt. f.p. format
+;
+;
+; integer operation codes.
+;
+ .equ CP_I_PASS_P, 0x00000020 ; integer pass P
+ .equ CP_I_MINUSP, 0x00000060 ; integer -P
+ .equ CP_I_ABSP, 0x000000A0 ; integer |P|
+ .equ CP_I_SIGNT_TIMES_ABSP, 0x00000C20 ; integer SIGN(T) * |P|
+;
+ .equ CP_I_P_PLUS_T, 0x00000021 ; integer P + T
+ .equ CP_I_P_MINUS_T, 0x00000121 ; integer P - T
+ .equ CP_I_MINUSP_PLUS_T, 0x00001021 ; integer -P + T
+ .equ CP_I_ABS_P_PLUS_T, 0x000000A1 ; integer |P + T|
+ .equ CP_I_ABS_P_MINUS_T, 0x000001A1 ; integer |P - T|
+;
+ .equ CP_I_P_TIMES_Q, 0x00000022 ; integer P * Q
+;
+ .equ CP_I_COMPARE_P_AND_T, 0x00000123 ; integer compare P and T
+;
+ .equ CP_I_MAX_P_AND_T, 0x00000124 ; integer max P,T
+;
+ .equ CP_I_MIN_P_AND_T, 0x00001025 ; integer min P,T
+;
+ .equ CP_I_CONVERT_T_TO_FLOAT, 0x00000026 ; integer convert T to f.p.
+;
+ .equ CP_I_SCALE_T_TO_FLOAT_BY_Q, 0x00000027 ; integer scale T to f.p. by Q
+;
+ .equ CP_I_P_OR_T, 0x00000030 ; integer P OR T
+;
+ .equ CP_I_P_AND_T, 0x00000031 ; integer P AND T
+;
+ .equ CP_I_P_XOR_T, 0x00000032 ; integer P XOR T
+;
+ .equ CP_I_NOT_T, 0x00000032 ; integer NOT T
+;
+ .equ CP_I_LSHIFT_P_BY_Q, 0x00000033 ; integer logical shift P by Q
+; places
+;
+ .equ CP_I_ASHIFT_P_BY_Q, 0x00000034 ; integer arith. shift P by Q
+; places
+;
+ .equ CP_I_FSHIFT_PT_BY_Q, 0x00000035 ; integer funnel shift PT by Q
+; places
+;
+;
+; move instruction (f.p. or integer)
+;
+ .equ CP_MOVE_P, 0x00000018 ; move operand P
+;
+;
+;========================================================================
+;
+; precision codes for the the operands in registers R and S, and for
+; the result (instruction word fields IPR, RPR).
+;
+;========================================================================
+;
+;
+ .equ CP_D_S, 0x00008000 ;Double result, single input(s)
+ .equ CP_S_D, 0x00004000 ;Single result, double input(s)
+ .equ CP_D_D, 0x00000000 ;Double result, double input(s)
+ .equ CP_S_S, 0x0000C000 ;Single result, single input(s)
+;
+;========================================================================
+;
+; The following mnemonics are used to specify the 16 LSBs of an Am29027
+; instruction word for floating-point instructions supported by the
+; Am29000 instruction set.
+;
+;========================================================================
+;
+ .equ CP_FADD, 0x0000C001
+ .equ CP_DADD, 0x00000001
+ .equ CP_FSUB, 0x0000C101
+ .equ CP_DSUB, 0x00000101
+ .equ CP_FMUL, 0x0000C002
+ .equ CP_DMUL, 0x00000002
+ .equ CP_FEQ, 0x0000C103
+ .equ CP_DEQ, 0x00000103
+ .equ CP_FGE, 0x0000C103
+ .equ CP_DGE, 0x00000103
+ .equ CP_FGT, 0x0000C103
+ .equ CP_DGT, 0x00000103
+ .equ CP_CONVERT_I_TO_F, 0x0000C026 ; CONVERT (int -> s.p.)
+ .equ CP_CONVERT_I_TO_D, 0x00008026 ; CONVERT (int -> d.p.)
+ .equ CP_CONVERT_F_TO_I, 0x0000C006 ; CONVERT (s.p.-> int)
+ .equ CP_CONVERT_D_TO_I, 0x00004006 ; CONVERT (d.p.-> int)
+ .equ CP_CONVERT_F_TO_D, 0x00008000 ; CONVERT (s.p.-> d.p.)
+ .equ CP_CONVERT_D_TO_F, 0x00004000 ; CONVERT (d.p.-> s.p.)
+;
+;
+;========================================================================
+;
+; operand select codes (instruction word fields PMS, QMS, TMS).
+;
+;========================================================================
+;
+;
+ .equ CP_P_EQ_R, 0x00000000
+ .equ CP_P_EQ_S, 0x01000000
+ .equ CP_P_EQ_0, 0x02000000
+ .equ CP_P_EQ_ONE_HALF, 0x03000000
+ .equ CP_P_EQ_IMINUS1, 0x03000000
+ .equ CP_P_EQ_1, 0x04000000
+ .equ CP_P_EQ_2, 0x05000000
+ .equ CP_P_EQ_3, 0x06000000
+ .equ CP_P_EQ_PI, 0x07000000
+ .equ CP_P_EQ_IMINUSMAX, 0x07000000
+ .equ CP_P_EQ_RF0, 0x08000000
+ .equ CP_P_EQ_RF1, 0x09000000
+ .equ CP_P_EQ_RF2, 0x0A000000
+ .equ CP_P_EQ_RF3, 0x0B000000
+ .equ CP_P_EQ_RF4, 0x0C000000
+ .equ CP_P_EQ_RF5, 0x0D000000
+ .equ CP_P_EQ_RF6, 0x0E000000
+ .equ CP_P_EQ_RF7, 0x0F000000
+;
+ .equ CP_Q_EQ_R, 0x00000000
+ .equ CP_Q_EQ_S, 0x00100000
+ .equ CP_Q_EQ_0, 0x00200000
+ .equ CP_Q_EQ_ONE_HALF, 0x00300000
+ .equ CP_Q_EQ_IMINUS1, 0x00300000
+ .equ CP_Q_EQ_1, 0x00400000
+ .equ CP_Q_EQ_2, 0x00500000
+ .equ CP_Q_EQ_3, 0x00600000
+ .equ CP_Q_EQ_PI, 0x00700000
+ .equ CP_Q_EQ_IMINUSMAX, 0x00700000
+ .equ CP_Q_EQ_RF0, 0x00800000
+ .equ CP_Q_EQ_RF1, 0x00900000
+ .equ CP_Q_EQ_RF2, 0x00A00000
+ .equ CP_Q_EQ_RF3, 0x00B00000
+ .equ CP_Q_EQ_RF4, 0x00C00000
+ .equ CP_Q_EQ_RF5, 0x00D00000
+ .equ CP_Q_EQ_RF6, 0x00E00000
+ .equ CP_Q_EQ_RF7, 0x00F00000
+;
+ .equ CP_T_EQ_R, 0x00000000
+ .equ CP_T_EQ_S, 0x00010000
+ .equ CP_T_EQ_0, 0x00020000
+ .equ CP_T_EQ_ONE_HALF, 0x00030000
+ .equ CP_T_EQ_IMINUS1, 0x00030000
+ .equ CP_T_EQ_1, 0x00040000
+ .equ CP_T_EQ_2, 0x00050000
+ .equ CP_T_EQ_3, 0x00060000
+ .equ CP_T_EQ_PI, 0x00070000
+ .equ CP_T_EQ_IMINUSMAX, 0x00070000
+ .equ CP_T_EQ_RF0, 0x00080000
+ .equ CP_T_EQ_RF1, 0x00090000
+ .equ CP_T_EQ_RF2, 0x000A0000
+ .equ CP_T_EQ_RF3, 0x000B0000
+ .equ CP_T_EQ_RF4, 0x000C0000
+ .equ CP_T_EQ_RF5, 0x000D0000
+ .equ CP_T_EQ_RF6, 0x000E0000
+ .equ CP_T_EQ_RF7, 0x000F0000
+;
+;
+;========================================================================
+;
+; destination select codes (instruction word fields RF, RFS)
+;
+;========================================================================
+;
+;
+ .equ CP_DEST_EQ_GP, 0x00000000
+ .equ CP_DEST_EQ_RF0, 0x80000000
+ .equ CP_DEST_EQ_RF1, 0x90000000
+ .equ CP_DEST_EQ_RF2, 0xA0000000
+ .equ CP_DEST_EQ_RF3, 0xB0000000
+ .equ CP_DEST_EQ_RF4, 0xC0000000
+ .equ CP_DEST_EQ_RF5, 0xD0000000
+ .equ CP_DEST_EQ_RF6, 0xE0000000
+ .equ CP_DEST_EQ_RF7, 0xF0000000
+;
+;
+; ______________________________________________________________________
+;|______________________________________________________________________|
+;| |
+;| SYMBOLS FOR DEFINING THE MODE REGISTER DOUBLE WORD |
+;| |
+;|______________________________________________________________________|
+;|______________________________________________________________________|
+;
+;
+;
+ .equ CP_PFF_MASK, 0x00000003 ; primary f.p. format mask
+ .equ CP_PFF_EQ_IEEE, 0x00000000 ; primary f.p. format = IEEE
+ .equ CP_PFF_EQ_DECD, 0x00000001 ; primary f.p. format = DEC D
+ .equ CP_PFF_EQ_DECG, 0x00000002 ; primary f.p. format = DEC G
+ .equ CP_PFF_EQ_IBM, 0x00000003 ; primary f.p. format = IBM
+ .equ CP_PFF_POSITION, 0
+;
+ .equ CP_AFF_MASK, 0x0000000C ; alternate f.p. format mask
+ .equ CP_AFF_EQ_IEEE, 0x00000000 ; alternate f.p. format = IEEE
+ .equ CP_AFF_EQ_DECD, 0x00000004 ; alternate f.p. format = DEC D
+ .equ CP_AFF_EQ_DECG, 0x00000008 ; alternate f.p. format = DEC G
+ .equ CP_AFF_EQ_IBM, 0x0000000C ; alternate f.p. format = IBM
+ .equ CP_AFF_POSITION, 2
+;
+ .equ CP_SAT_MASK, 0x00000010 ; saturate mode (SAT) mask
+ .equ CP_SATURATE_MODE, 0x00000010 ; enable saturate mode (SAT=1)
+ .equ CP_SAT_POSITION, 4
+;
+ .equ CP_AP_MASK, 0x00000020 ; affine/proj. mode (AP) mask
+ .equ CP_AFFINE_MODE, 0x00000020 ; enable affine mode (AP=1)
+ .equ CP_PROJECTIVE_MODE, 0x00000000 ; enable projective mode (AP=0)
+ .equ CP_AP_POSITION, 5
+;
+ .equ CP_TRP_MASK, 0x00000040 ; IEEE trap mode (TRP) mask
+ .equ CP_IEEE_TRAPS_ENABLED, 0x00000040 ; IEEE trap mode enabled (TRP=1)
+ .equ CP_IEEE_TRAPS_DISABLED, 0x00000000 ; IEEE trap mode disabled (TRP=0)
+ .equ CP_TRP_POSITION, 6
+;
+ .equ CP_SU_MASK, 0x00000080 ; IEEE sud. uflow (SU) mask
+ .equ CP_IEEE_SUDDEN_UFLOW_MODE, 0x00000080 ; IEEE sud. uflow mode (SU=1)
+ .equ CP_IEEE_GRADUAL_UFLOW_MODE,0x00000000 ; IEEE grad uflow mode (SU=0)
+ .equ CP_SU_POSITION, 7
+;
+ .equ CP_BS_MASK, 0x00000100 ; IBM sig. mask (BS)
+ .equ CP_BS_POSITION, 8
+;
+ .equ CP_BU_MASK, 0x00000200 ; IBM underflow mask (BU)
+ .equ CP_BU_POSITION, 9
+;
+ .equ CP_MS_MASK, 0x00000800 ; signed int. mpy (MS) mask
+ .equ CP_SIGNED_INT_MPY_MODE, 0x00000800 ; signed int. mpy mode (MS=1)
+ .equ CP_UNSIGNED_INT_MPY_MODE, 0x00000000 ; unsigned int. mpy mode (MS=0)
+ .equ CP_MS_POSITION, 11
+;
+ .equ CP_MF_MASK, 0x00003000 ; int. mult. fmt. mode (MF) mask
+ .equ CP_MF_EQ_LSBS, 0x00000000 ; int. mult. fmt. = LSBs
+ .equ CP_MF_EQ_LSBSFA, 0x00001000 ; int. mult. fmt. = LSBs,fmt. adj.
+ .equ CP_MF_EQ_MSBS, 0x00002000 ; int. mult. fmt. = MSBs
+ .equ CP_MF_EQ_MSBSFA, 0x00003000 ; int. mult. fmt. = MSBs,fmt. adj.
+ .equ CP_MF_POSITION, 12
+;
+ .equ CP_RMS_MASK, 0x0001C000 ; round mode (RMS) mask
+ .equ CP_RMS_EQ_NEAREST, 0x00000000 ; round mode = to nearest
+ .equ CP_RMS_EQ_MINUS_INF, 0x00004000 ; round mode = toward -oo
+ .equ CP_RMS_EQ_PLUS_INF, 0x00008000 ; round mode = toward +oo
+ .equ CP_RMS_EQ_ZERO, 0x0000C000 ; round mode = toward zero
+ .equ CP_RMS_POSITION, 14
+;
+ .equ CP_PL_MASK, 0x00100000 ; pipeline mode (PL) mask
+ .equ CP_FLOWTHROUGH_MODE, 0x00000000 ; select flow-through mode
+ .equ CP_PIPELINE_MODE, 0x00100000 ; select pipeline mode
+ .equ CP_PL_POSITION, 20
+;
+ .equ CP_INVALID_OP_EXCP_MASK, 0x00400000 ; invalid operation excp. mask(IM)
+ .equ CP_RESERVED_OP_EXCP_MASK,0x00800000 ; reserved operand excp. mask(RM)
+ .equ CP_OVERFLOW_EXCP_MASK, 0x01000000 ; overflow exception mask (VM)
+ .equ CP_UNDERFLOW_EXCP_MASK, 0x02000000 ; underflow exception mask(UM)
+ .equ CP_INEXACT_EXCP_MASK, 0x04000000 ; inexact result excp. mask(XM)
+ .equ CP_ZERO_EXCP_MASK, 0x08000000 ; zero result exception mask (ZM)
+ .equ CP_EXCPS_POSITION, 22
+;
+ .equ CP_PLTC_MASK, 0x0000000F ; pipeline timer count (PLTC) mask
+ .equ CP_PLTC_EQ_2, 0x00000002 ; pipeline timer count = 2
+ .equ CP_PLTC_EQ_3, 0x00000003 ; pipeline timer count = 3
+ .equ CP_PLTC_EQ_4, 0x00000004 ; pipeline timer count = 4
+ .equ CP_PLTC_EQ_5, 0x00000005 ; pipeline timer count = 5
+ .equ CP_PLTC_EQ_6, 0x00000006 ; pipeline timer count = 6
+ .equ CP_PLTC_EQ_7, 0x00000007 ; pipeline timer count = 7
+ .equ CP_PLTC_EQ_8, 0x00000008 ; pipeline timer count = 8
+ .equ CP_PLTC_EQ_9, 0x00000009 ; pipeline timer count = 9
+ .equ CP_PLTC_EQ_10, 0x0000000A ; pipeline timer count = 10
+ .equ CP_PLTC_EQ_11, 0x0000000B ; pipeline timer count = 11
+ .equ CP_PLTC_EQ_12, 0x0000000C ; pipeline timer count = 12
+ .equ CP_PLTC_EQ_13, 0x0000000D ; pipeline timer count = 13
+ .equ CP_PLTC_EQ_14, 0x0000000E ; pipeline timer count = 14
+ .equ CP_PLTC_EQ_15, 0x0000000F ; pipeline timer count = 15
+ .equ CP_PLTC_POSITION, 0
+;
+ .equ CP_MATC_MASK, 0x000000F0 ; mpy-acc timer count (MATC) mask
+ .equ CP_MATC_EQ_2, 0x00000020 ; mpy-acc timer count = 2
+ .equ CP_MATC_EQ_3, 0x00000030 ; mpy-acc timer count = 3
+ .equ CP_MATC_EQ_4, 0x00000040 ; mpy-acc timer count = 4
+ .equ CP_MATC_EQ_5, 0x00000050 ; mpy-acc timer count = 5
+ .equ CP_MATC_EQ_6, 0x00000060 ; mpy-acc timer count = 6
+ .equ CP_MATC_EQ_7, 0x00000070 ; mpy-acc timer count = 7
+ .equ CP_MATC_EQ_8, 0x00000080 ; mpy-acc timer count = 8
+ .equ CP_MATC_EQ_9, 0x00000090 ; mpy-acc timer count = 9
+ .equ CP_MATC_EQ_10, 0x000000A0 ; mpy-acc timer count = 10
+ .equ CP_MATC_EQ_11, 0x000000B0 ; mpy-acc timer count = 11
+ .equ CP_MATC_EQ_12, 0x000000C0 ; mpy-acc timer count = 12
+ .equ CP_MATC_EQ_13, 0x000000D0 ; mpy-acc timer count = 13
+ .equ CP_MATC_EQ_14, 0x000000E0 ; mpy-acc timer count = 14
+ .equ CP_MATC_EQ_15, 0x000000F0 ; mpy-acc timer count = 15
+ .equ CP_MATC_POSITION, 4
+;
+ .equ CP_MVTC_MASK, 0x00000F00 ; MOVE P timer count (MVTC) mask
+ .equ CP_MVTC_EQ_2, 0x00000200 ; MOVE P timer count = 2
+ .equ CP_MVTC_EQ_3, 0x00000300 ; MOVE P timer count = 3
+ .equ CP_MVTC_EQ_4, 0x00000400 ; MOVE P timer count = 4
+ .equ CP_MVTC_EQ_5, 0x00000500 ; MOVE P timer count = 5
+ .equ CP_MVTC_EQ_6, 0x00000600 ; MOVE P timer count = 6
+ .equ CP_MVTC_EQ_7, 0x00000700 ; MOVE P timer count = 7
+ .equ CP_MVTC_EQ_8, 0x00000800 ; MOVE P timer count = 8
+ .equ CP_MVTC_EQ_9, 0x00000900 ; MOVE P timer count = 9
+ .equ CP_MVTC_EQ_10, 0x00000A00 ; MOVE P timer count = 10
+ .equ CP_MVTC_EQ_11, 0x00000B00 ; MOVE P timer count = 11
+ .equ CP_MVTC_EQ_12, 0x00000C00 ; MOVE P timer count = 12
+ .equ CP_MVTC_EQ_13, 0x00000D00 ; MOVE P timer count = 13
+ .equ CP_MVTC_EQ_14, 0x00000E00 ; MOVE P timer count = 14
+ .equ CP_MVTC_EQ_15, 0x00000F00 ; MOVE P timer count = 15
+ .equ CP_MVTC_POSITION, 8
+;
+ .equ CP_AD_MASK, 0x00001000 ;
+ .equ CP_ADVANCE_DRDY_MODE, 0x00001000 ;
+ .equ CP_NORMAL_DRDY_MODE, 0x00000000 ;
+ .equ CP_AD_POSITION, 12
+;
+ .equ CP_HE_MASK, 0x00002000 ; Halt-on-error mask (HE)
+ .equ CP_HALT_ON_ERROR_ENABLED, 0x00002000 ; Halt-on-error enabled (HE=1)
+ .equ CP_HALT_ON_ERROR_DISABLED,0x00000000 ; Halt-on-error disabled (HE=0)
+ .equ CP_HE_POSITION, 13
+;
+ .equ CP_EX_MASK, 0x00004000 ; EXCP enable mask (EX)
+ .equ CP_EXCP_ENABLED, 0x00004000 ; EXCP enabled (EX=1)
+ .equ CP_EXCP_DISABLED, 0x00000000 ; EXCP disabled (EX=0)
+ .equ CP_EX_POSITION, 14
+;
+;
+;
+; ______________________________________________________________________
+;|______________________________________________________________________|
+;| |
+;| SYMBOLS FOR DEFINING THE STATUS REGISTER WORD |
+;| |
+;|______________________________________________________________________|
+;|______________________________________________________________________|
+;
+;
+ .equ CP_INVALID_OP_EXCP, 0x00000001
+ .equ CP_INVALID_OP_EXCP_POSITION, 0
+;
+ .equ CP_RESERVED_OP_EXCP, 0x00000002
+ .equ CP_RESERVED_OP_EXCP_POSITION, 1
+;
+ .equ CP_OVERFLOW_EXCP, 0x00000004
+ .equ CP_OVERFLOW_EXCP_POSITION, 2
+;
+ .equ CP_UNDERFLOW_EXCP, 0x00000008
+ .equ CP_UNDERFLOW_EXCP_POSITION, 3
+;
+ .equ CP_INEXACT_EXCP, 0x00000010
+ .equ CP_INEXACT_EXCP_POSITION, 4
+;
+ .equ CP_ZERO_EXCP, 0x00000020
+ .equ CP_ZERO_EXCP_POSITION, 5
+;
+ .equ CP_EXCP_STATUS_MASK, 0x00000040
+ .equ CP_EXCP_STATUS_FLAG_POSITION, 6
+;
+ .equ CP_R_TEMP_VALID_MASK, 0x00000080
+ .equ R_TEMP_VALID_POSITION, 7
+;
+ .equ CP_S_TEMP_VALID_MASK, 0x00000100
+ .equ CP_S_TEMP_VALID_POSITION, 8
+;
+ .equ CP_I_TEMP_VALID_FLAG, 0x00000200
+ .equ CP_I_TEMP_VALID_POSITION, 9
+;
+ .equ CP_OPERATION_PENDING_MASK, 0x00000400
+ .equ CP_OPERATION_PENDING_POSITION,10
+;
+;
+; ______________________________________________________________________
+;|______________________________________________________________________|
+;| |
+;| SYMBOLS FOR DEFINING THE FLAG REGISTER WORD |
+;| |
+;|______________________________________________________________________|
+;|______________________________________________________________________|
+;
+;
+ .equ CP_INVALID_OP_FLAG, 0x00000001
+ .equ CP_INVALID_OP_FLAG_POSITION, 0
+;
+ .equ CP_CARRY_FLAG, 0x00000001
+ .equ CP_CARRY_FLAG_POSITION, 0
+;
+ .equ CP_RESERVED_OP_FLAG, 0x00000002
+ .equ CP_RESERVED_OP_FLAG_POSITION, 1
+;
+ .equ CP_OVERFLOW_FLAG, 0x00000004
+ .equ CP_OVERFLOW_FLAG_POSITION, 2
+;
+ .equ CP_UNORDERED_FLAG, 0x00000004
+ .equ CP_UNORDERED_FLAG_POSITION, 2
+;
+ .equ CP_UNDERFLOW_FLAG, 0x00000008
+ .equ CP_UNDERFLOW_FLAG_POSITION, 3
+;
+ .equ CP_LESS_THAN_FLAG, 0x00000008
+ .equ CP_LESS_THAN_POSITION, 3
+;
+ .equ CP_WINNER_FLAG, 0x00000008
+ .equ CP_WINNER_FLAG_POSITION, 3
+;
+ .equ CP_INEXACT_FLAG, 0x00000010
+ .equ CP_INEXACT_FLAG_POSITION, 4
+;
+ .equ CP_GREATER_THAN_FLAG, 0x00000010
+ .equ CP_GREATER_THAN_FLAG_POSITION,4
+;
+ .equ CP_ZERO_FLAG, 0x00000020
+ .equ CP_ZERO_FLAG_POSITION, 5
+;
+ .equ CP_EQUAL_FLAG, 0x00000020
+ .equ CP_EQUAL_FLAG_POSITION, 5
+;
+ .equ CP_SIGN_FLAG, 0x00000040
+ .equ CP_SIGN_FLAG_POSITION, 6
+;
+;
+; ______________________________________________________________________
+;|______________________________________________________________________|
+;| |
+;| SYMBOLS FOR TRANSACTION REQUEST TYPES |
+;| |
+;|______________________________________________________________________|
+;|______________________________________________________________________|
+;
+;
+; write requests
+;
+; Note: Each WRITE_* transaction request, plus ADV_TEMPS sets the CA
+; (Coprocessor Active) bit in the 29000 Current Processor Status Register.
+;
+ .equ CP_WRITE_R, 0x20 ;write sing or doub to R register
+ .equ CP_WRITE_S, 0x21 ;write sing or doub to S register
+ .equ CP_WRITE_RS, 0x22 ;write sing operands to R and S
+ .equ CP_WRITE_MODE, 0x23 ;write mode double word to 29027
+ .equ CP_WRITE_STATUS, 0x24 ;write status word to 29027
+ .equ CP_WRITE_PREC, 0x25 ;write reg. file precision word
+ ; to 29027
+ .equ CP_WRITE_INST, 0x26 ;write instruction to 29027
+ .equ CP_ADV_TEMPS, 0x27 ;move R-Temp, S-Temp into R,S
+;
+; read requests
+;
+ .equ CP_READ_MSBS, 0x00 ;read sing result or MSB of doub
+ .equ CP_READ_LSBS, 0x01 ;read LSB of doub result
+ .equ CP_READ_FLAGS, 0x02 ;read 29027 flag register
+ .equ CP_READ_STATUS, 0x03 ;read 29027 status register
+ .equ CP_SAVE_STATE, 0x04 ;read one word of 29027 state
+;
+; "start operation" symbol; this is "OR"ed with a WRITE_R, WRITE_S,
+; WRITE_RS, or WRITE_INST symbol.
+;
+
+ .equ CP_START, 0b1000000 ;bit to start 29027 operation
+;
+; "suppress exceptions reporting" symbol; this is "OR"ed with a ed
+;
+;
+
+ .equ CP_NO_ERR, 0b1000000 ;suppress exception reporting
+; ; during load.
+; cp_write_r - transfers 32- or 64-bit operand to Am29027
+; register R
+; cp_write_s - transfers 32- or 64-bit operand to Am29027
+; register S
+; cp_write_rs - transfers two 32-bit floating-point operands to
+; Am29027 registers R and S
+; cp_write_prec - transfers a word to the Am29027 precision register
+; cp_write_status - transfers a word to the Am29027 status register
+; cp_write_inst - transfers an instruction to the Am29027
+; instruction register
+; cp_advance_temps - transfers the contents of the Am29027 temporary
+; registers to the corresponding working registers
+; cp_write_mode - transfers a mode specification the the Am29027
+; mode register
+; cp_read_dp - read a double-precision floating-point result
+; from the Am29027
+; cp_read_sp - read a single-precision floating-point result
+; from the Am29027
+; cp_read_int - read an integer result from the Am29027
+; cp_read_flags - read the contents of the Am29027 flag register
+; cp_read_status - read the contents of the Am29027 status register
+; cp_read_state_wd - read a single Am29027 state word
+; cp_save_state - save Am29027 state
+; cp_restore_state - restore Am29027 state
+; cp_build_inst - build an Am29027 instruction
+; cp_build_inst_h - build 16 MSBs of an Am29027 instruction
+; cp_build_inst_l - build 16 LSBs of an Am29027 instruction
+;
+;
+;
+;============================================================================
+; MACRO NAME: cp_write_r
+;
+; WRITTEN BY: Bob Perlman
+;
+; MOST RECENT UPDATE: April 16, 1988
+;
+; FUNCTION: Transfers a 32- or 64-bit operand to Am29027 input register R
+;
+; PARAMETERS:
+; reg - the Am29000 g.p. register containing the 32-bit operand to be
+; transferred, or the 32 MSBs of the 64-bit operand to be
+; transferred.
+;
+; LSB_reg - the Am29000 g.p. register containing the 32 LSBs of the
+; 64-bit operand to be transferred
+;
+; INT - indicates that the operand to be transferred is a 32-bit
+; integer
+;
+; START - indicates that a new Am29027 operation is to be started
+; once the operand has been transferred
+;
+;
+; USAGE:
+;
+; cp_write_r reg [,LSB_reg] [,START] for floating-point operands
+; or cp_write_r reg, INT [,START] for integer operands
+;
+; Transferring double-precision floating-point operands - Either of
+; two forms is acceptable:
+;
+; cp_write_r reg
+; or cp_write_r reg, LSB_reg
+;
+; If LSB_reg is omitted, the LSBs are taken from the next g.p.
+; register.
+;
+; Ex: cp_write_r lr2 Transfers the contents of lr2 to
+; the most-significant half of Am29027
+; register R, and the contents of lr3
+; to the least-significant half.
+;
+; cp_write_r lr2,lr5 Transfers the contents of lr2 to
+; the most-significant half of Am29027
+; register R, and the contents of lr5
+; to the least-significant half.
+;
+;
+; Transferring single-precision floating-point operands - Use the
+; form:
+;
+; cp_write_r reg
+;
+;
+; Ex: cp_write_r lr2 Transfers the contents of lr2 to
+; the most-significant half of Am29027
+; register R, (the contents of lr3
+; will be transferred to the least-
+; significant half of register R, but
+; these bits are don't cares).
+;
+;
+; Transferring integer operands - Use the form:
+;
+; cp_write_r reg,INT
+;
+;
+; Ex: cp_write_r lr2,INT Transfers the contents of lr2 to
+; the least-significant half of Am29027
+; register R, (the contents of lr2
+; will also be transferred to the most-
+; significant half of register R, but
+; these bits are don't cares).
+;
+;
+; Starting an Am29027 operation - Any of the forms above may be
+; appended with parameter START, e.g.:
+;
+; cp_write_r lr2,START
+;
+; cp_write_r lr2,lr5,START
+;
+; cp_write_r lr2,INT,START
+;
+;
+;============================================================================
+;
+ .macro cp_write_r,p1,p2,p3
+;
+ .if $narg==0
+ .err
+ .print "cp_WRITE_R: missing parameter(s)"
+ .endif
+;
+;
+ .if $narg==1
+ store 1,CP_WRITE_R,p1,%%((&p1)+1)
+ .exitm
+ .endif
+;
+;
+ .if $narg==2
+;
+ .ifeqs "@p2@","INT"
+ store 1,CP_WRITE_R,p1,p1
+ .exitm
+ .endif
+;
+ .ifeqs "@p2@","START"
+ store 1,CP_WRITE_R|CP_START,p1,%%((&p1)+1)
+ .exitm
+ .endif
+;
+ store 1,CP_WRITE_R,p1,p2
+ .exitm
+;
+ .endif
+;
+;
+ .if $narg==3
+;
+ .ifeqs "@p2@","START"
+ .ifeqs "@p3@","INT"
+ store 1,CP_WRITE_R|CP_START,p1,p1
+ .else
+ .err
+ .print "cp_write_r: bad parameter list"
+ .endif
+ .exitm
+ .endif
+;
+ .ifeqs "@p2@","INT"
+ .ifeqs "@p3@","START"
+ store 1,CP_WRITE_R|CP_START,p1,p1
+ .else
+ .err
+ .print "cp_write_r: bad parameter list"
+ .endif
+ .exitm
+ .endif
+;
+ .ifeqs "@p3@","START"
+ store 1,CP_WRITE_R|CP_START,p1,p2
+ .else
+ .err
+ .print "cp_write_r: bad parameter list"
+ .endif
+ .exitm
+;
+ .endif
+;
+;
+ .if $narg>=4
+ .err
+ .print "cp_write_r: too many parameters"
+ .endif
+;
+ .endm
+;
+;
+;
+;
+;
+;============================================================================
+; MACRO NAME: cp_write_s
+;
+; WRITTEN BY: Bob Perlman
+;
+; MOST RECENT UPDATE: April 16, 1988
+;
+; FUNCTION: Transfers a 32- or 64-bit operand to Am29027 input register S
+;
+; PARAMETERS:
+; reg - the Am29000 g.p. register containing the 32-bit operand to be
+; transferred, or the 32 MSBs of the 64-bit operand to be
+; transferred.
+;
+; LSB_reg - the Am29000 g.p. register containing the 32 LSBs of the
+; 64-bit operand to be transferred
+;
+; INT - indicates that the operand to be transferred is a 32-bit
+; integer
+;
+; START - indicates that a new Am29027 operation is to be started
+; once the operand has been transferred
+;
+;
+; USAGE:
+;
+; cp_write_s reg [,LSB_reg] [,START] for floating-point operands
+; or cp_write_s reg, INT [,START] for integer operands
+;
+; Transferring double-precision floating-point operands - Either of
+; two forms is acceptable:
+;
+; cp_write_s reg
+; or cp_write_s reg, LSB_reg
+;
+; If LSB_reg is omitted, the LSBs are taken from the next g.p.
+; register.
+;
+; Ex: cp_write_s lr2 Transfers the contents of lr2 to
+; the most-significant half of Am29027
+; register S, and the contents of lr3
+; to the least-significant half.
+;
+; cp_write_s lr2,lr5 Transfers the contents of lr2 to
+; the most-significant half of Am29027
+; register S, and the contents of lr5
+; to the least-significant half.
+;
+;
+; Transferring single-precision floating-point operands - Use the
+; form:
+;
+; cp_write_s reg
+;
+;
+; Ex: cp_write_s lr2 Transfers the contents of lr2 to
+; the most-significant half of Am29027
+; register S, (the contents of lr3
+; will be transferred to the least-
+; significant half of register S, but
+; these bits are don't cares).
+;
+;
+; Transferring integer operands - Use the form:
+;
+; cp_write_s reg,INT
+;
+;
+; Ex: cp_write_s lr2,INT Transfers the contents of lr2 to
+; the least-significant half of Am29027
+; register S, (the contents of lr2
+; will also be transferred to the most-
+; significant half of register S, but
+; these bits are don't cares).
+;
+;
+; Starting an Am29027 operation - Any of the forms above may be
+; appended with parameter START, e.g.:
+;
+; cp_write_s lr2,START
+;
+; cp_write_s lr2,lr5,START
+;
+; cp_write_s lr2,INT,START
+;
+;
+;============================================================================
+;
+ .macro cp_write_s,p1,p2,p3
+;
+ .if $narg==0
+ .err
+ .print "cp_write_s: missing parameter(s)"
+ .endif
+;
+;
+ .if $narg==1
+ store 1,CP_WRITE_S,p1,%%((&p1)+1)
+ .exitm
+ .endif
+;
+;
+ .if $narg==2
+;
+ .ifeqs "@p2@","INT"
+ store 1,CP_WRITE_S,p1,p1
+ .exitm
+ .endif
+;
+ .ifeqs "@p2@","START"
+ store 1,CP_WRITE_S|CP_START,p1,%%((&p1)+1)
+ .exitm
+ .endif
+;
+ store 1,CP_WRITE_S,p1,p2
+ .exitm
+;
+ .endif
+;
+;
+ .if $narg==3
+;
+ .ifeqs "@p2@","START"
+ .ifeqs "@p3@","INT"
+ store 1,CP_WRITE_S|CP_START,p1,p1
+ .else
+ .err
+ .print "cp_write_s: bad parameter list"
+ .endif
+ .exitm
+ .endif
+;
+ .ifeqs "@p2@","INT"
+ .ifeqs "@p3@","START"
+ store 1,CP_WRITE_S|CP_START,p1,p1
+ .else
+ .err
+ .print "cp_write_s: bad parameter list"
+ .endif
+ .exitm
+ .endif
+;
+ .ifeqs "@p3@","START"
+ store 1,CP_WRITE_S|CP_START,p1,p2
+ .else
+ .err
+ .print "cp_write_s: bad parameter list"
+ .endif
+ .exitm
+;
+ .endif
+;
+;
+ .if $narg>=4
+ .err
+ .print "cp_write_s: too many parameters"
+ .endif
+;
+ .endm
+;
+;
+;
+;
+;============================================================================
+; MACRO NAME: cp_write_rs
+;
+; WRITTEN BY: Bob Perlman
+;
+; MOST RECENT UPDATE: April 16, 1988
+;
+; FUNCTION: Transfers two 32-bit floating-point operands to Am29027
+; input registers R and S
+;
+; PARAMETERS:
+; reg1 - the Am29000 g.p. register containing the 32-bit operand to be
+; transferred to register R
+;
+; reg2 - the Am29000 g.p. register containing the 32-bit operand to be
+; transferred to register S
+;
+; START - indicates that a new Am29027 operation is to be started
+; once the operands have been transferred
+;
+;
+; USAGE:
+;
+; cp_write_rs reg1, reg2 [,START]
+;
+; Ex: cp_write_rs lr2,lr5 Transfers the contents of lr2 to
+; the most-significant half of Am29027
+; register R, and the contents of lr5
+; to the most-significant half of Am29027
+; register S.
+;
+; cp_write_rs lr2,lr5,START Transfers the contents of lr2 to
+; the most-significant half of Am29027
+; register R, and the contents of lr5
+; to the most-significant half of Am29027
+; register S; a new operation is started
+; once the transfer is complete.
+;
+;
+;
+;============================================================================
+;
+ .macro cp_write_rs,p1,p2,p3
+;
+;
+ .if $narg<=1
+ .err
+ .print "cp_write_rs: missing parameter(s)"
+ .exitm
+ .endif
+;
+;
+ .if $narg==2
+ .ifeqs "@p2@","START"
+ .err
+ .print "cp_write_rs: bad parameter list"
+ .else
+ store 1,CP_WRITE_RS,p1,p2
+ .endif
+ .exitm
+ .endif
+;
+;
+ .if $narg==3
+ .ifeqs "@p3@","START"
+ store 1,CP_WRITE_RS|CP_START,p1,p2
+ .else
+ .err
+ .print "cp_write_rs: bad parameter list"
+ .endif
+ .exitm
+ .endif
+;
+;
+ .if $narg>=4
+ .err
+ .print "cp_write_rs: too many parameters"
+ .exitm
+ .endif
+;
+ .endm
+;
+;
+;
+;
+;
+;
+;============================================================================
+; MACRO NAME: cp_write_prec
+;
+; WRITTEN BY: Bob Perlman
+;
+; MOST RECENT UPDATE: April 16, 1988
+;
+; FUNCTION: Transfers a word to the Am29027 precision register
+;
+; PARAMETERS:
+; reg - the Am29000 g.p. register containing the word to be
+; transferred to the Am29027 precision register
+;
+; USAGE:
+;
+; cp_write_prec reg
+;
+; Ex: cp_write_prec lr2 Transfers the contents of lr2 to
+; the Am29027 precision register.
+;
+;
+;============================================================================
+;
+ .macro cp_write_prec,p1
+;
+;
+ .if $narg!=1
+ .err
+ .print "cp_write_prec: bad parameter list"
+ .else
+ store 1,CP_WRITE_PREC,p1,0
+ .endif
+;
+ .endm
+;
+;
+;
+;
+;
+;
+;============================================================================
+; MACRO NAME: cp_write_status
+;
+; WRITTEN BY: Bob Perlman
+;
+; MOST RECENT UPDATE: April 16, 1988
+;
+; FUNCTION: Transfers a word to the Am29027 precision register
+;
+; PARAMETERS:
+; reg - the Am29000 g.p. register containing the word to be
+; transferred to the Am29027 status register
+;
+; RESTORE - indicates that this is the last step of a state restoration
+; sequence (flow-through mode only)
+;
+; INVALIDATE - indicates that the current contents of the ALU pipeline
+; register are to be invalidated (pipeline mode only)
+;
+; USAGE:
+;
+; cp_write_status reg [,RESTORE|INVALIDATE]
+;
+; Ex: cp_write_status lr2 Transfers the contents of lr2 to
+; the Am29027 status register.
+;
+;
+; cp_write_status lr2,RESTORE Transfers the contents of lr2 to
+; the Am29027 status register, and
+; completes the state restore
+; sequence
+;
+; cp_write_status lr2,INVALIDATE Transfers the contents of lr2 to
+; the Am29027 status register, and
+; invalidates the contents of the
+; ALU pipeline.
+;
+;
+;============================================================================
+;
+ .macro cp_write_status,p1,p2
+;
+ .if $narg==0
+ .err
+ .print "cp_write_status: missing parameter(s)"
+ .endif
+;
+;
+ .if $narg==1
+ store 1,CP_WRITE_STATUS,p1,0
+ .exitm
+ .endif
+;
+;
+ .if $narg==2
+;
+ .ifeqs "@p2@","RESTORE"
+ store 1,CP_WRITE_STATUS|CP_START,p1,0
+ .exitm
+ .endif
+;
+ .ifeqs "@p2@","INVALIDATE"
+ store 1,CP_WRITE_STATUS|CP_START,p1,0
+ .exitm
+ .endif
+;
+ .err
+ .print "cp_write_status: bad parameter list"
+ .exitm
+;
+ .endif
+;
+;
+ .if $narg >=3
+ .err
+ .print "cp_write_status: too many parameters"
+ .exitm
+ .endif
+;
+ .endm
+;
+;
+;
+;
+;
+;============================================================================
+; MACRO NAME: cp_write_inst
+;
+; WRITTEN BY: Bob Perlman
+;
+; MOST RECENT UPDATE: April 16, 1988
+;
+; FUNCTION: Transfers an instruction word to the Am29027 instruction
+; register
+;
+; PARAMETERS:
+; reg - the Am29000 g.p. register containing the word to be
+; transferred to the Am29027 instruction register
+;
+; START - indicates that a new Am29027 operation is to be started
+; once the instruction word has been transferred
+;
+; USAGE:
+;
+; cp_write_inst reg [,START]
+;
+; Ex: cp_write_inst lr2 Transfers the contents of lr2 to
+; the Am29027 instruction register.
+;
+;
+; cp_write_inst lr2,START Transfers the contents of lr2 to
+; the Am29027 status register; a
+; new operation is started once the
+; transfer is complete.
+;
+;
+;============================================================================
+;
+ .macro cp_write_inst,p1,p2
+;
+ .if $narg==0
+ .err
+ .print "cp_write_inst: missing parameter(s)"
+ .endif
+;
+;
+ .if $narg==1
+ store 1,CP_WRITE_INST,p1,p1
+ .exitm
+ .endif
+;
+;
+ .if $narg==2
+;
+ .ifeqs "@p2@","START"
+ store 1,CP_WRITE_INST|CP_START,p1,p1
+ .else
+ .err
+ .print "cp_write_inst: bad parameter list"
+ .endif
+ .exitm
+;
+ .endif
+;
+;
+ .if $narg >=3
+ .err
+ .print "cp_write_inst: too many parameters"
+ .exitm
+ .endif
+;
+ .endm
+;
+;
+;
+;
+;
+;
+;============================================================================
+; MACRO NAME: cp_advance_temps
+;
+; WRITTEN BY: Bob Perlman
+;
+; MOST RECENT UPDATE: April 17, 1988
+;
+; FUNCTION: Transfers the contents of Am29027 registers R-Temp, S-Temp,
+; and I-Temp to register R, register S, and the instruction
+; register, respectively.
+;
+; PARAMETERS: none
+;
+; USAGE:
+;
+; cp_advance_temps
+;
+;
+;
+;============================================================================
+;
+ .macro cp_advance_temps
+;
+;
+ .if $narg!=0
+ .err
+ .print "cp_advance_temp: takes no parameters"
+ .else
+ store 1,CP_ADV_TEMPS,gr1,0 ; use gr1 because it's never protected
+ .endif
+;
+ .endm
+;
+;
+;
+;
+;============================================================================
+; MACRO NAME: cp_write_mode
+;
+; WRITTEN BY: Bob Perlman
+;
+; MOST RECENT UPDATE: April 17, 1988
+;
+; FUNCTION: Transfers a 64-bit mode specification to the Am29027 mode
+; register
+;
+; PARAMETERS:
+; reg - the Am29000 g.p. register containing the 32 MSBs of the
+; 64-bit mode specification to be transferred.
+;
+; LSB_reg - the Am29000 g.p. register containing the 32 LSBs of the
+; 64-bit mode specification to be transferred.
+;
+; USAGE:
+;
+; cp_write_mode reg [,LSB_reg]
+;
+; Either of two forms is acceptable:
+;
+; cp_write_mode reg
+; or cp_write_mode reg, LSB_reg
+;
+; If LSB_reg is omitted, the LSBs are taken from the next g.p.
+; register.
+;
+; Ex: cp_write_mode lr2 Transfers the contents of lr2 to
+; the most-significant half of the Am29027
+; mode register, and the contents of lr3
+; to the least-significant half.
+;
+; cp_write_mode lr2,lr5 Transfers the contents of lr2 to
+; the most-significant half of the Am29027
+; mode register, and the contents of lr5
+; to the least-significant half.
+;
+;
+;
+;============================================================================
+;
+ .macro cp_write_mode,p1,p2
+;
+ .if $narg==0
+ .err
+ .print "cp_write_mode: missing parameter(s)"
+ .endif
+;
+;
+ .if $narg==1
+ store 1,CP_WRITE_MODE,%%((&p1)+1),p1
+ .exitm
+ .endif
+;
+;
+ .if $narg==2
+ store 1,CP_WRITE_MODE,p2,p1
+ .exitm
+ .endif
+;
+;
+ .if $narg>=3
+ .err
+ .print "cp_write_mode: too many parameters"
+ .endif
+;
+ .endm
+;
+;
+;
+;============================================================================
+; MACRO NAME: cp_read_dp
+;
+; WRITTEN BY: Bob Perlman
+;
+; MOST RECENT UPDATE: April 17, 1988
+;
+; FUNCTION: Transfers the current Am29027 double-precison floating-point
+; result to the Am29000
+;
+; PARAMETERS:
+; reg - the Am29000 g.p. register into which the 32 MSBs of the
+; current Am29027 result are to be written.
+;
+; LSB_reg - the Am29000 g.p. register into which the 32 LSBs of the
+; current Am29027 result are to be written.
+;
+; NO_ERR - indicates that exception reporting is to be suppressed for this
+; transfer.
+;
+; USAGE:
+;
+; cp_read_dp reg [,LSB_reg] [,START]
+;
+; Either of two forms is acceptable:
+;
+; cp_read_dp reg
+; or cp_read_dp reg, LSB_reg
+;
+; If LSB_reg is omitted, the LSBs are written to the next g.p. register.
+;
+; Ex: cp_read_dp lr2 Transfers the 32 MSBs of the current
+; Am29027 result to lr2, and the 32 LSBs
+; to lr3.
+;
+; cp_read_dp lr2,lr5 Transfers the 32 MSBs of the current
+; Am29027 result to lr2, and the 32 LSBs
+; to lr5.
+;
+; Exception reporting can be suppressed by appending NO_ERR to either
+; of the above, e.g.:
+;
+; cp_read_dp lr2,NO_ERR
+; cp_read_dp lr2,lr5,NO_ERR
+;
+;
+;============================================================================
+;
+ .macro cp_read_dp,p1,p2,p3
+;
+ .if $narg==0
+ .err
+ .print "cp_read_dp: missing parameter(s)"
+ .endif
+;
+;
+ .if $narg==1
+ load 1,CP_READ_LSBS,%%((&p1)+1),0
+ load 1,CP_READ_MSBS,p1,0
+ .exitm
+ .endif
+;
+;
+ .if $narg==2
+;
+ .ifeqs "@p2@","NO_ERR"
+ load 1,CP_READ_LSBS|CP_NO_ERR,%%((&p1)+1),0
+ load 1,CP_READ_MSBS|CP_NO_ERR,p1,0
+ .exitm
+ .endif
+;
+ load 1,CP_READ_LSBS,p2,0
+ load 1,CP_READ_MSBS,p1,0
+ .exitm
+;
+ .endif
+;
+;
+ .if $narg==3
+;
+ .ifeqs "@p3@","NO_ERR"
+ load 1,CP_READ_LSBS|CP_NO_ERR,p2,0
+ load 1,CP_READ_MSBS|CP_NO_ERR,p1,0
+ .else
+ .err
+ .print "cp_read_dp: bad parameter list"
+ .endif
+ .exitm
+;
+ .endif
+;
+;
+ .if $narg>=4
+ .err
+ .print "cp_read_dp: too many parameters"
+ .endif
+;
+ .endm
+;
+;
+;
+;============================================================================
+; MACRO NAME: cp_read_sp
+;
+; WRITTEN BY: Bob Perlman
+;
+; MOST RECENT UPDATE: April 17, 1988
+;
+; FUNCTION: Transfers the current Am29027 single-precison floating-point
+; result to the Am29000
+;
+; PARAMETERS:
+; reg - the Am29000 g.p. register into which the current Am29027
+; result is to be written.
+;
+; NO_ERR - indicates that exception reporting is to be suppressed for this
+; transfer.
+;
+; USAGE:
+;
+; cp_read_sp reg [,START]
+;
+; Ex: cp_read_sp lr2 Transfers the current Am29027 result
+; to lr2.
+;
+; cp_read_sp lr2,NO_ERR Transfers the current Am29027 result
+; to lr2, and suppresses exception
+; reporting for this transfer.
+;
+;
+;============================================================================
+;
+ .macro cp_read_sp,p1,p2
+;
+ .if $narg==0
+ .err
+ .print "cp_read_sp: missing parameter(s)"
+ .endif
+;
+;
+ .if $narg==1
+ load 1,CP_READ_MSBS,p1,0
+ .exitm
+ .endif
+;
+;
+ .if $narg==2
+;
+ .ifeqs "@p2@","NO_ERR"
+ load 1,CP_READ_MSBS|CP_NO_ERR,p1,0
+ .else
+ .err
+ .print "cp_read_sp: bad parameter list"
+ .endif
+ .exitm
+;
+ .endif
+;
+;
+ .if $narg>=3
+ .err
+ .print "cp_read_sp: too many parameters"
+ .endif
+;
+ .endm
+;
+;
+;
+;============================================================================
+; MACRO NAME: cp_read_int
+;
+; WRITTEN BY: Bob Perlman
+;
+; MOST RECENT UPDATE: April 17, 1988
+;
+; FUNCTION: Transfers the current Am29027 integer result to the Am29000
+;
+; PARAMETERS:
+; reg - the Am29000 g.p. register into which the current Am29027
+; result is to be written.
+;
+; NO_ERR - indicates that exception reporting is to be suppressed for this
+; transfer.
+;
+; USAGE:
+;
+; cp_read_int reg [,START]
+;
+; Ex: cp_read_int lr2 Transfers the current Am29027 result
+; to lr2.
+;
+; cp_read_int lr2,NO_ERR Transfers the current Am29027 result
+; to lr2, and suppresses exception
+; reporting for this transfer.
+;
+;
+;============================================================================
+;
+ .macro cp_read_int,p1,p2
+;
+ .if $narg==0
+ .err
+ .print "cp_read_int: missing parameter(s)"
+ .endif
+;
+;
+ .if $narg==1
+ load 1,CP_READ_LSBS,p1,0
+ nop ; leave a cycle for the MSBs to come out
+ .exitm
+ .endif
+;
+;
+ .if $narg==2
+;
+ .ifeqs "@p2@","NO_ERR"
+ load 1,CP_READ_LSBS|CP_NO_ERR,p1,0
+ nop ; leave a cycle for the MSBs to come out
+ .else
+ .err
+ .print "cp_read_int: bad parameter list"
+ .endif
+ .exitm
+;
+ .endif
+;
+;
+ .if $narg>=3
+ .err
+ .print "cp_read_int: too many parameters"
+ .endif
+;
+ .endm
+;
+;
+;
+;============================================================================
+; MACRO NAME: cp_read_flags
+;
+; WRITTEN BY: Bob Perlman
+;
+; MOST RECENT UPDATE: April 17, 1988
+;
+; FUNCTION: Transfers the contents of the Am29027 flag register
+; to the Am29000
+;
+; PARAMETERS:
+; reg - the Am29000 g.p. register into which the current Am29027
+; flag register contents are to be written.
+;
+; NO_ERR - indicates that exception reporting is to be suppressed for this
+; transfer.
+;
+; USAGE:
+;
+; cp_read_flags reg [,START]
+;
+; Ex: cp_read_flags lr2 Transfers the Am29027 flag register
+; contents to lr2.
+;
+; cp_read_flags lr2,NO_ERR Transfers the Am29027 flag register
+; contents to lr2, and suppresses
+; exception reporting for this
+; transfer.
+;
+;
+;============================================================================
+;
+ .macro cp_read_flags,p1,p2
+;
+ .if $narg==0
+ .err
+ .print "cp_read_flags: missing parameter(s)"
+ .endif
+;
+;
+ .if $narg==1
+ load 1,CP_READ_FLAGS,p1,0
+ .exitm
+ .endif
+;
+;
+ .if $narg==2
+;
+ .ifeqs "@p2@","NO_ERR"
+ load 1,CP_READ_FLAGS|CP_NO_ERR,p1,0
+ .else
+ .err
+ .print "cp_read_flags: bad parameter list"
+ .endif
+ .exitm
+;
+ .endif
+;
+;
+ .if $narg>=3
+ .err
+ .print "cp_read_flags: too many parameters"
+ .endif
+;
+ .endm
+;
+;
+;
+;============================================================================
+; MACRO NAME: cp_read_status
+;
+; WRITTEN BY: Bob Perlman
+;
+; MOST RECENT UPDATE: April 18, 1988
+;
+; FUNCTION: Transfers the contents of the Am29027 status register
+; to the Am29000
+;
+; PARAMETERS:
+; reg - the Am29000 g.p. register into which the current Am29027
+; status register contents are to be written.
+;
+; NO_ERR - indicates that exception reporting is to be suppressed for this
+; transfer.
+;
+; USAGE:
+;
+; cp_read_status reg [,START]
+;
+; Ex: cp_read_status lr2 Transfers the Am29027 status register
+; contents to lr2.
+;
+; cp_read_status lr2,NO_ERR Transfers the Am29027 status register
+; contents to lr2, and suppresses
+; exception reporting for this
+; transfer.
+;
+;
+;============================================================================
+;
+ .macro cp_read_status,p1,p2
+;
+ .if $narg==0
+ .err
+ .print "cp_read_status: missing parameter(s)"
+ .endif
+;
+;
+ .if $narg==1
+ load 1,CP_READ_STATUS,p1,0
+ .exitm
+ .endif
+;
+;
+ .if $narg==2
+;
+ .ifeqs "@p2@","NO_ERR"
+ load 1,CP_READ_STATUS|CP_NO_ERR,p1,0
+ .else
+ .err
+ .print "cp_read_status: bad parameter list"
+ .endif
+ .exitm
+;
+ .endif
+;
+;
+ .if $narg>=3
+ .err
+ .print "cp_read_status: too many parameters"
+ .endif
+;
+ .endm
+;
+;
+;
+;============================================================================
+; MACRO NAME: cp_read_state_wd
+;
+; WRITTEN BY: Bob Perlman
+;
+; MOST RECENT UPDATE: April 18, 1988
+;
+; FUNCTION: Transfers the next Am29027 state word to the Am29000
+;
+; PARAMETERS:
+; reg - the Am29000 g.p. register into which the next Am29027
+; state word contents are to be written.
+;
+; USAGE:
+;
+; cp_read_state_wd reg
+;
+; Ex: cp_read_state_wd lr2 Transfers the next Am29027 state word
+; to lr2.
+;
+;============================================================================
+;
+ .macro cp_read_state_wd,p1
+;
+ .if $narg==0
+ .err
+ .print "cp_read_state_wd: missing parameter"
+ .endif
+;
+;
+ .if $narg==1
+ load 1,CP_SAVE_STATE,p1,0
+ .exitm
+ .endif
+;
+;
+ .if $narg>=2
+ .err
+ .print "cp_read_state_wd: too many parameters"
+ .endif
+;
+ .endm
+;
+;
+;
+;============================================================================
+; MACRO NAME: cp_save_state
+;
+; WRITTEN BY: Bob Perlman
+;
+; MOST RECENT UPDATE: April 18, 1988
+;
+; FUNCTION: Transfers the current Am29027 state to the Am29000
+;
+; PARAMETERS:
+; reg - the first of 30 Am29000 g.p. registers in which Am29027 state
+; is saved.
+;
+; USAGE:
+;
+; cp_save_state reg
+;
+; This macro transfers the current Am29027 state to a block of 30 Am29000
+; registers. State is stored in the following order:
+;
+; reg instruction register
+; reg+1 I-Temp
+; reg+2 R MSBs
+; reg+3 R LSBs
+; reg+4 S MSBs
+; reg+5 S LSBs
+; reg+6 R-Temp MSBs
+; reg+7 R-Temp LSBs
+; reg+8 S-Temp MSBs
+; reg+9 S-Temp LSBs
+; reg+10 status
+; reg+11 precision
+; reg+12 RF0 MSBs
+; reg+13 RF0 LSBs
+; . .
+; . .
+; . .
+; reg+26 RF7 MSBs
+; reg+27 RF7 LSBs
+; reg+28 mode MSBs
+; reg+29 mode LSBs
+;
+;
+; Ex: cp_save_state lr2 Transfers the current Am29027 state to
+; the Am29000, starting at lr2.
+;
+; NOTES:
+; 1) This macro stores all 64-bit quantities in "big-endian" order,
+; i.e. MSBs first. For example, the 32 MSBs of register R are
+; stored in reg+2, and the 32 LSBs are stored in reg+3. The Am29027
+; transfers these quantites in "little-endian" order; the macro
+; is responsible for swapping MS and LS words.
+;
+;============================================================================
+;
+ .macro cp_save_state,p1
+;
+ .if $narg==0
+ .err
+ .print "cp_save_state: missing parameter"
+ .endif
+;
+;
+ .if $narg==1
+ cp_read_sp p1,NO_ERR
+ ;guarantee that we're at beginning of
+ ; save state sequence
+ cp_read_state_wd %%((&p1)+ 0) ; instruction
+ cp_read_state_wd %%((&p1)+ 1) ; I-Temp
+ cp_read_state_wd %%((&p1)+ 3) ; R MSBs
+ cp_read_state_wd %%((&p1)+ 2) ; R LSBs
+ cp_read_state_wd %%((&p1)+ 5) ; S MSBs
+ cp_read_state_wd %%((&p1)+ 4) ; S LSBs
+ cp_read_state_wd %%((&p1)+ 7) ; R-Temp MSBs
+ cp_read_state_wd %%((&p1)+ 6) ; R-Temp LSBs
+ cp_read_state_wd %%((&p1)+ 9) ; S-Temp MSBs
+ cp_read_state_wd %%((&p1)+ 8) ; S-Temp LSBs
+ cp_read_state_wd %%((&p1)+10) ; status
+ cp_read_state_wd %%((&p1)+11) ; precision
+ cp_read_state_wd %%((&p1)+13) ; RF0 MSBs
+ cp_read_state_wd %%((&p1)+12) ; RF0 LSBs
+ cp_read_state_wd %%((&p1)+15) ; RF1 MSBs
+ cp_read_state_wd %%((&p1)+14) ; RF1 LSBs
+ cp_read_state_wd %%((&p1)+17) ; RF2 MSBs
+ cp_read_state_wd %%((&p1)+16) ; RF2 LSBs
+ cp_read_state_wd %%((&p1)+19) ; RF3 MSBs
+ cp_read_state_wd %%((&p1)+18) ; RF3 LSBs
+ cp_read_state_wd %%((&p1)+21) ; RF4 MSBs
+ cp_read_state_wd %%((&p1)+20) ; RF4 LSBs
+ cp_read_state_wd %%((&p1)+23) ; RF5 MSBs
+ cp_read_state_wd %%((&p1)+22) ; RF5 LSBs
+ cp_read_state_wd %%((&p1)+25) ; RF6 MSBs
+ cp_read_state_wd %%((&p1)+24) ; RF6 LSBs
+ cp_read_state_wd %%((&p1)+27) ; RF7 MSBs
+ cp_read_state_wd %%((&p1)+26) ; RF7 LSBs
+ cp_read_state_wd %%((&p1)+29) ; mode MSBs
+ cp_read_state_wd %%((&p1)+28) ; mode LSBs
+ .exitm
+ .endif
+;
+;
+ .if $narg>=2
+ .err
+ .print "cp_save_state: too many parameters"
+ .endif
+;
+ .endm
+;
+;
+;
+;
+;
+;============================================================================
+; MACRO NAME: cp_restore_state
+;
+; WRITTEN BY: Bob Perlman
+;
+; MOST RECENT UPDATE: April 18, 1988
+;
+; FUNCTION: Restores Am29027 state
+;
+; PARAMETERS:
+; reg - the first of 30 Am29000 g.p. registers containing Am29027
+; state.
+;
+; temp - a scratch register used by cp_restore_state
+;
+; USAGE:
+;
+; cp_restore_state reg,temp
+;
+; This macro restores Am29027 state by transferring 30 words to the
+; Am29027; these words are taken from a block of Am29000 g.p. registers
+; starting at "reg." The words are assumed to be stored in the following
+; order:
+;
+; reg instruction register
+; reg+1 I-Temp
+; reg+2 R MSBs
+; reg+3 R LSBs
+; reg+4 S MSBs
+; reg+5 S LSBs
+; reg+6 R-Temp MSBs
+; reg+7 R-Temp LSBs
+; reg+8 S-Temp MSBs
+; reg+9 S-Temp LSBs
+; reg+10 status
+; reg+11 precision
+; reg+12 RF0 MSBs
+; reg+13 RF0 LSBs
+; . .
+; . .
+; . .
+; reg+26 RF7 MSBs
+; reg+27 RF7 LSBs
+; reg+28 mode MSBs
+; reg+29 mode LSBs
+;
+;
+; Ex: cp_restore_state lr2,gr70 Restores Am29027 state by
+; transferring a block of 30 words
+; that begins at lr2. Register gr70
+; is used as scratch storage by this
+; macro.
+;
+;
+;============================================================================
+;
+ .macro cp_restore_state,p1,p2
+;
+ .if $narg<=1
+ .err
+ .print "cp_restore_state: missing parameter(s)"
+ .endif
+;
+;
+ .if $narg==2
+
+ const p2,0 ;clear the status register
+ cp_write_status p2
+;
+ cp_write_mode %%((&p1)+28) ;restore the mode register
+;
+ const p2,0x80000018 ; restore RF0
+ consth p2,0x80000018
+ cp_write_inst p2
+ cp_write_r %%((&p1)+12),START
+;
+ consth p2,0x90000018 ; restore RF1
+ cp_write_inst p2
+ cp_write_r %%((&p1)+14),START
+;
+ consth p2,0xA0000018 ; restore RF2
+ cp_write_inst p2
+ cp_write_r %%((&p1)+16),START
+;
+ consth p2,0xB0000018 ; restore RF3
+ cp_write_inst p2
+ cp_write_r %%((&p1)+18),START
+;
+ consth p2,0xC0000018 ; restore RF4
+ cp_write_inst p2
+ cp_write_r %%((&p1)+20),START
+;
+ consth p2,0xD0000018 ; restore RF5
+ cp_write_inst p2
+ cp_write_r %%((&p1)+22),START
+;
+ consth p2,0xE0000018 ; restore RF6
+ cp_write_inst p2
+ cp_write_r %%((&p1)+24),START
+;
+ consth p2,0xF0000018 ; restore RF7
+ cp_write_inst p2
+ cp_write_r %%((&p1)+26),START
+;
+ cp_read_sp p2 ; do a dummy read, to guarantee that
+ ; the last operation is complete
+;
+ cp_write_prec %%((&p1)+11) ; restore precision
+;
+ cp_write_r %%((&p1)+2) ; restore R
+ cp_write_s %%((&p1)+4) ; restore S
+ cp_write_inst %%((&p1)+0) ; restore instruction
+ cp_advance_temps ; move R,S, and inst. to working registers
+;
+ cp_write_r %%((&p1)+6) ; restore R-Temp
+ cp_write_s %%((&p1)+8) ; restore S-Temp
+ cp_write_inst %%((&p1)+1) ; restore I-Temp
+;
+; restore the status register, retime last operation
+;
+ cp_write_status %%((&p1)+10),RESTORE
+;
+ .exitm
+ .endif
+;
+;
+ .if $narg>=3
+ .err
+ .print "cp_restore_state: too many parameters"
+ .endif
+;
+ .endm
+;
+;
+;
+;============================================================================
+; MACRO NAME: cp_build_inst
+;
+; WRITTEN BY: Bob Perlman
+;
+; MOST RECENT UPDATE: April 24, 1988
+; : January 4, 1989 Rich Parker
+;
+; FUNCTION: Builds a 32-bit Am29027 instruction in an Am29000 g.p.
+; register.
+;
+; PARAMETERS:
+; reg - the Am29000 g.p. register into which the instruction word
+; is to be written
+;
+; op_code - mnemonic specifying the operation to be performed
+; (e.g. FADD, P_TIMES_Q)
+;
+; precision - precision specification for destination, source operands:
+; D_S - double-prec. result, single-prec. input(s)
+; D_D - double-prec. result, double-prec. input(s)
+; S_S - single-prec. result, single-prec. input(s)
+; S_D - single-prec. result, double-prec. input(s)
+;
+; dest - destination for the operation result:
+; RF0 - store result in Am29027 register file location RF0
+; RF1 - store result in Am29027 register file location RF1
+; RF2 - store result in Am29027 register file location RF2
+; RF3 - store result in Am29027 register file location RF3
+; RF4 - store result in Am29027 register file location RF4
+; RF5 - store result in Am29027 register file location RF5
+; RF6 - store result in Am29027 register file location RF6
+; RF7 - store result in Am29027 register file location RF7
+; GP - result is to be stored in an Am29000 g.p. register
+; with a read_dp, read_sp, or read_int macro.
+;
+; source1,
+; source2,
+; source3 - source operand specifications:
+; R - take source from Am29027 register R
+; S - take source from Am29027 register S
+; RF0 - take source from Am29027 register file location RF0
+; RF1 - take source from Am29027 register file location RF1
+; RF2 - take source from Am29027 register file location RF2
+; RF3 - take source from Am29027 register file location RF3
+; RF4 - take source from Am29027 register file location RF4
+; RF5 - take source from Am29027 register file location RF5
+; RF6 - take source from Am29027 register file location RF6
+; RF7 - take source from Am29027 register file location RF7
+; 0 - source is 0
+; ONE_HALF - source is constant .5 (f.p. operations only)
+; IMINUS1 - source is constant -1 (integer operations only)
+; 1 - source is constant 1
+; 2 - source is constant 2
+; 3 - source is constant 3
+; PI - source is constant pi (f.p. operations only)
+; IMINUSMAX - source is -(2**63) (integer operations only)
+;
+;
+; USAGE:
+;
+; cp_build_inst reg,op_code,[precision,]dest,source1[,source2][,source3]
+;
+; Op-codes fall into two categories: those that correspond to Am29000
+; floating-point op-codes, and for which the precision is implicit (e.g.
+; FADD, DMUL); and those that correspond to Am29027 base operations
+; (e.g. P_PLUS_T, P_TIMES_Q), and which require an explicit precision
+; specification.
+;
+; Every operation specified must have a destination; if the operation
+; does not write a result to the Am29027 register file, destination GP
+; must be specified. The number of source operands specified must agree
+; with the number of source operands required by the operation specified.
+;
+; Ex:
+;
+; cp_build_inst lr2,FADD,RF7,R,S
+; Builds an instruction word to
+; perform the operation:
+; RF7 <- R + S
+; where R, S, and RF7 are single-
+; precision f.p. operands. The
+; instruction word is placed in lr2.
+;
+; cp_build_inst gr119,DMUL,GP,R,ONE_HALF
+; Builds an instruction word to
+; perform the operation:
+; R * .5
+; where R, .5, and the result
+; are double-precision f.p. operands.
+; The result is not written to the
+; Am29027 register file. The
+; instruction word is written to
+; gr119.
+;
+;
+; cp_build_inst lr3,MIN_P_AND_T,S_D,RF7,R,S
+; Builds an instruction word to
+; perform the operation:
+; RF7 <- smaller of(R,S)
+; where R and S are double-precision
+; f.p. operands, and RF7 is a single-
+; precison f.p. operand. The
+; instruction word is written to
+; lr3.
+;
+;
+; cp_build_inst gr97,I_P_TIMES_Q,S_S,GP,R,2
+; Builds an instruction word to
+; perform the operation:
+; R * 2
+; where R, .5, and the result
+; are single-precision integer operands.
+; The result is not written to the
+; Am29027 register file. The
+; instruction word is written to
+; gr97
+;
+;
+; cp_build_inst lr7,ABS_P,D_D,RF6,S
+; Builds an instruction word to
+; perform the operation:
+; RF6 <- |S|
+; where S and RF7 are double-precision
+; f.p. operands. The instruction
+; word is written to gr7.
+;
+;
+; cp_build_inst gr127,PQ_PLUS_T,D_D,RF6,R,S,RF6
+; Builds an instruction word to
+; perform the operation:
+; RF6 <- (R * S) + RF6
+; where R, S and the result are
+; double-precision f.p. operands.
+; The instruction word is written
+; to gr127.
+;
+;
+;
+;============================================================================
+;
+ .macro cp_build_inst,p1,p2,p3,p4,p5,p6,p7
+;
+ .if $narg<=3
+ .err
+ .print "cp_build_inst: missing parameter(s)"
+ .exitm
+ .endif
+;
+; classify operation type
+;
+ .set _cp_op_type,255
+
+ _cp_set_op_params p2,FADD,1,5,4,0,5
+ _cp_set_op_params p2,DADD,1,5,4,0,5
+ _cp_set_op_params p2,FSUB,1,5,4,0,5
+ _cp_set_op_params p2,DSUB,1,5,4,0,5
+ _cp_set_op_params p2,FMUL,1,5,4,5,0
+ _cp_set_op_params p2,DMUL,1,5,4,5,0
+ _cp_set_op_params p2,FEQ,1,5,4,0,5
+ _cp_set_op_params p2,DEQ,1,5,4,0,5
+ _cp_set_op_params p2,FGE,1,5,4,0,5
+ _cp_set_op_params p2,DGE,1,5,4,0,5
+ _cp_set_op_params p2,FGT,1,5,4,0,5
+ _cp_set_op_params p2,DGT,1,5,4,0,5
+ _cp_set_op_params p2,CONVERT_I_TO_F,1,4,0,0,4
+ _cp_set_op_params p2,CONVERT_I_TO_D,1,4,0,0,4
+ _cp_set_op_params p2,CONVERT_F_TO_I,1,4,0,0,4
+ _cp_set_op_params p2,CONVERT_D_TO_I,1,4,0,0,4
+;
+; The next two lines were corrected on 1-4-89, Rich Parker
+;
+ _cp_set_op_params p2,CONVERT_F_TO_D,1,4,4,0,0
+ _cp_set_op_params p2,CONVERT_D_TO_F,1,4,4,0,0
+;
+ _cp_set_op_params p2,PASS_P,0,5,5,0,0
+ _cp_set_op_params p2,MINUSP,0,5,5,0,0
+ _cp_set_op_params p2,ABSP,0,5,5,0,0
+ _cp_set_op_params p2,SIGNT_TIMES_ABSP,0,6,6,0,5
+ _cp_set_op_params p2,P_PLUS_T,0,6,5,0,6
+ _cp_set_op_params p2,P_MINUS_T,0,6,5,0,6
+ _cp_set_op_params p2,MINUSP_PLUS_T,0,6,5,0,6
+ _cp_set_op_params p2,MINUSP_MINUS_T,0,6,5,0,6
+ _cp_set_op_params p2,ABS_P_PLUS_T,0,6,5,0,6
+ _cp_set_op_params p2,ABS_P_MINUS_T,0,6,5,0,6
+ _cp_set_op_params p2,ABSP_PLUS_ABST,0,6,5,0,6
+ _cp_set_op_params p2,ABSP_MINUS_ABST,0,6,5,0,6
+ _cp_set_op_params p2,ABS_ABSP_MINUS_ABST,0,6,5,0,6
+ _cp_set_op_params p2,P_TIMES_Q,0,6,5,6,0
+ _cp_set_op_params p2,MINUSP_TIMES_Q,0,6,5,6,0
+ _cp_set_op_params p2,ABS_P_TIMES_Q,0,6,5,6,0
+ _cp_set_op_params p2,COMPARE_P_AND_T,0,6,5,0,6
+ _cp_set_op_params p2,MAX_P_AND_T,0,6,5,0,6
+ _cp_set_op_params p2,MAX_ABSP_AND_ABST,0,6,5,0,6
+ _cp_set_op_params p2,MIN_P_AND_T,0,6,5,0,6
+ _cp_set_op_params p2,MIN_ABSP_AND_ABST,0,6,5,0,6
+ _cp_set_op_params p2,LIMIT_P_TO_MAGT,0,6,5,0,6
+ _cp_set_op_params p2,CONVERT_T_TO_INT,0,5,0,0,5
+ _cp_set_op_params p2,SCALE_T_TO_INT_BY_Q,0,6,0,6,5
+ _cp_set_op_params p2,PQ_PLUS_T,0,7,5,6,7
+ _cp_set_op_params p2,MINUSPQ_PLUS_T,0,7,5,6,7
+ _cp_set_op_params p2,PQ_MINUS_T,0,7,5,6,7
+ _cp_set_op_params p2,MINUSPQ_MINUS_T,0,7,5,6,7
+ _cp_set_op_params p2,ABSPQ_PLUS_ABST,0,7,5,6,7
+ _cp_set_op_params p2,MINUSABSPQ_PLUS_ABST,0,7,5,6,7
+ _cp_set_op_params p2,ABSPQ_MINUS_ABST,0,7,5,6,7
+ _cp_set_op_params p2,ROUND_T_TO_INT,0,5,0,0,5
+ _cp_set_op_params p2,RECIPROCAL_OF_P,0,5,5,0,0
+ _cp_set_op_params p2,CONVERT_T_TO_ALT,0,5,0,0,5
+ _cp_set_op_params p2,CONVERT_T_FROM_ALT,0,5,0,0,5
+ _cp_set_op_params p2,I_PASS_P,0,5,5,0,0
+ _cp_set_op_params p2,I_MINUSP,0,5,5,0,0
+ _cp_set_op_params p2,I_ABSP,0,5,5,0,0
+ _cp_set_op_params p2,I_SIGNT_TIMES_ABSP,0,6,6,0,5
+ _cp_set_op_params p2,I_P_PLUS_T,0,6,5,0,6
+ _cp_set_op_params p2,I_P_MINUS_T,0,6,5,0,6
+ _cp_set_op_params p2,I_MINUSP_PLUS_T,0,6,5,0,6
+ _cp_set_op_params p2,I_ABS_P_PLUS_T,0,6,5,0,6
+ _cp_set_op_params p2,I_ABS_P_MINUS_T,0,6,5,0,6
+ _cp_set_op_params p2,I_P_TIMES_Q,0,6,5,6,0
+ _cp_set_op_params p2,I_COMPARE_P_AND_T,0,6,5,0,6
+ _cp_set_op_params p2,I_MAX_P_AND_T,0,6,5,0,6
+ _cp_set_op_params p2,I_MIN_P_AND_T,0,6,5,0,6
+ _cp_set_op_params p2,I_CONVERT_T_TO_FLOAT,0,5,0,0,5
+ _cp_set_op_params p2,I_SCALE_T_TO_FLOAT_BY_Q,0,6,0,6,5
+ _cp_set_op_params p2,I_P_OR_T,0,6,5,0,6
+ _cp_set_op_params p2,I_P_AND_T,0,6,5,0,6
+ _cp_set_op_params p2,I_P_XOR_T,0,6,5,0,6
+ _cp_set_op_params p2,I_NOT_T,0,5,0,0,5
+ _cp_set_op_params p2,I_LSHIFT_P_BY_Q,0,6,5,6,0
+ _cp_set_op_params p2,I_ASHIFT_P_BY_Q,0,6,5,6,0
+ _cp_set_op_params p2,I_FSHIFT_PT_BY_Q,0,7,5,7,6
+ _cp_set_op_params p2,MOVE_P,0,5,5,0,0
+;
+;
+; if we couldn't find the op_code, flag an error
+;
+ .if _cp_op_type>=2
+ .err
+ .print "cp_build_inst: invalid Am29027 instruction mnemonic"
+ .exitm
+ .endif
+;
+; if number of parameters is incorrect, flag error
+;
+ .if $narg!=_cp_no_params
+ .err
+ .print "cp_build_inst: incorrect number of parameters"
+ .exitm
+ .endif
+;
+; find correct value for precision field, if appropriate
+;
+ .set _cp_prec_field,0 ; ** CORRECTION (1/4/89 ROP)
+ .if _cp_op_type==0 ; need to look for precision
+ .set _cp_found_precision,0
+ .ifeqs "@p3@","D_D"
+ .set _cp_prec_field,CP_@p3
+ .set _cp_found_precision,1
+ .endif
+ .ifeqs "@p3@","D_S"
+ .set _cp_prec_field,CP_@p3
+ .set _cp_found_precision,1
+ .endif
+ .ifeqs "@p3@","S_D"
+ .set _cp_prec_field,CP_@p3
+ .set _cp_found_precision,1
+ .endif
+ .ifeqs "@p3@","S_S"
+ .set _cp_prec_field,CP_@p3
+ .set _cp_found_precision,1
+ .endif
+ .if _cp_found_precision==0
+ .err
+ .print "cp_build_inst: missing precision field"
+ .exitm
+ .endif
+ .endif
+;
+; find value for destination field
+;
+ .if _cp_op_type==0
+ .set _cp_dest_field_val,CP_DEST_EQ_@p4
+ .else
+ .set _cp_dest_field_val,CP_DEST_EQ_@p3
+ .endif
+;
+; find correct value for p select field
+;
+ .if _cp_p_paramno==0
+ .set _cp_p_field_val,0x00000000
+ .endif
+ .if _cp_p_paramno==4
+ .set _cp_p_field_val,CP_P_EQ_@p4
+ .endif
+ .if _cp_p_paramno==5
+ .set _cp_p_field_val,CP_P_EQ_@p5
+ .endif
+ .if _cp_p_paramno==6
+ .set _cp_p_field_val,CP_P_EQ_@p6
+ .endif
+ .if _cp_p_paramno==7
+ .set _cp_p_field_val,CP_P_EQ_@p7
+ .endif
+ .ifeqs "@p2@","I_NOT_T"
+ .set _cp_p_field_val,CP_P_EQ_IMINUS1
+ .endif
+;
+; find correct value for q select field
+;
+ .if _cp_q_paramno==0
+ .set _cp_q_field_val,0x00000000
+ .endif
+ .if _cp_q_paramno==4
+ .set _cp_q_field_val,CP_Q_EQ_@p4
+ .endif
+ .if _cp_q_paramno==5
+ .set _cp_q_field_val,CP_Q_EQ_@p5
+ .endif
+ .if _cp_q_paramno==6
+ .set _cp_q_field_val,CP_Q_EQ_@p6
+ .endif
+ .if _cp_q_paramno==7
+ .set _cp_q_field_val,CP_Q_EQ_@p7
+ .endif
+;
+; find correct value for t select field
+;
+ .if _cp_t_paramno==0
+ .set _cp_t_field_val,0x00000000
+ .endif
+ .if _cp_t_paramno==4
+ .set _cp_t_field_val,CP_T_EQ_@p4
+ .endif
+ .if _cp_t_paramno==5
+ .set _cp_t_field_val,CP_T_EQ_@p5
+ .endif
+ .if _cp_t_paramno==6
+ .set _cp_t_field_val,CP_T_EQ_@p6
+ .endif
+ .if _cp_t_paramno==7
+ .set _cp_t_field_val,CP_T_EQ_@p7
+ .endif
+;
+;
+ .set _cp_inst_word,CP_@p2@|_cp_prec_field|_cp_dest_field_val
+ .set _cp_inst_word,_cp_inst_word|_cp_p_field_val
+ .set _cp_inst_word,_cp_inst_word|_cp_q_field_val
+ .set _cp_inst_word,_cp_inst_word|_cp_t_field_val
+
+ const p1,_cp_inst_word
+ consth p1,_cp_inst_word
+;
+ .endm
+;
+;
+;
+ .macro _cp_set_op_params,par1,par2,par3,par4,par5,par6,par7
+ .ifeqs "@par1@","@par2@"
+ .set _cp_op_type,par3
+ .set _cp_no_params,par4
+ .set _cp_p_paramno,par5
+ .set _cp_q_paramno,par6
+ .set _cp_t_paramno,par7
+ .endif
+ .endm
+;
+;
+;
+;============================================================================
+; MACRO NAME: cp_build_inst_h
+;
+; WRITTEN BY: Bob Perlman
+;
+; MOST RECENT UPDATE: April 24, 1988
+; : January 4, 1989 Rich Parker
+;
+; FUNCTION: Builds a 16 MSBs of a 32-bit Am29027 instruction in an
+; Am29000 g.p. register.
+;
+; PARAMETERS:
+; reg - the Am29000 g.p. register into which the instruction word
+; is to be written
+;
+; op_code - mnemonic specifying the operation to be performed
+; (e.g. FADD, P_TIMES_Q)
+;
+; precision - precision specification for destination, source operands:
+; D_S - double-prec. result, single-prec. input(s)
+; D_D - double-prec. result, double-prec. input(s)
+; S_S - single-prec. result, single-prec. input(s)
+; S_D - single-prec. result, double-prec. input(s)
+;
+; dest - destination for the operation result:
+; RF0 - store result in Am29027 register file location RF0
+; RF1 - store result in Am29027 register file location RF1
+; RF2 - store result in Am29027 register file location RF2
+; RF3 - store result in Am29027 register file location RF3
+; RF4 - store result in Am29027 register file location RF4
+; RF5 - store result in Am29027 register file location RF5
+; RF6 - store result in Am29027 register file location RF6
+; RF7 - store result in Am29027 register file location RF7
+; GP - result is to be stored in an Am29000 g.p. register
+; with a read_dp, read_sp, or read_int macro.
+;
+; source1,
+; source2,
+; source3 - source operand specifications:
+; R - take source from Am29027 register R
+; S - take source from Am29027 register S
+; RF0 - take source from Am29027 register file location RF0
+; RF1 - take source from Am29027 register file location RF1
+; RF2 - take source from Am29027 register file location RF2
+; RF3 - take source from Am29027 register file location RF3
+; RF4 - take source from Am29027 register file location RF4
+; RF5 - take source from Am29027 register file location RF5
+; RF6 - take source from Am29027 register file location RF6
+; RF7 - take source from Am29027 register file location RF7
+; 0 - source is 0
+; ONE_HALF - source is constant .5 (f.p. operations only)
+; IMINUS1 - source is constant -1 (integer operations only)
+; 1 - source is constant 1
+; 2 - source is constant 2
+; 3 - source is constant 3
+; PI - source is constant pi (f.p. operations only)
+; IMINUSMAX - source is -(2**63) (integer operations only)
+;
+;
+; USAGE:
+;
+; cp_build_inst_h reg,op_code,[precision,]dest,source1[,source2][,source3]
+;
+; This macro is similar to cp_build_inst, but creates only the 16 MSBs
+; of the 32-bit Am29027 instruction word. This macro is useful in cases
+; where the 16 LSBs of instruction word, which specify the operation
+; to be performed, already exist in an Am29000 g.p. register, but where
+; the 16 MSBs, which specify operand sources and destination, must be
+; changed. In such cases, one Am29000 instruction can be saved by using
+; cp_build_inst_h instead of cp_build_inst.
+;
+; Syntax and usage are identical to that of cp_build_inst.
+;
+; NOTE: This macro references macro _cp_set_op_params, which appears
+; in the assembly listing for macro _cp_build_inst.
+;
+;
+;
+;
+;============================================================================
+;
+ .macro cp_build_inst_h,p1,p2,p3,p4,p5,p6,p7
+;
+ .if $narg<=3
+ .err
+ .print "cp_build_inst_h: missing parameter(s)"
+ .exitm
+ .endif
+;
+; classify operation type
+;
+ .set _cp_op_type,255
+
+ _cp_set_op_params p2,FADD,1,5,4,0,5
+ _cp_set_op_params p2,DADD,1,5,4,0,5
+ _cp_set_op_params p2,FSUB,1,5,4,0,5
+ _cp_set_op_params p2,DSUB,1,5,4,0,5
+ _cp_set_op_params p2,FMUL,1,5,4,5,0
+ _cp_set_op_params p2,DMUL,1,5,4,5,0
+ _cp_set_op_params p2,FEQ,1,5,4,0,5
+ _cp_set_op_params p2,DEQ,1,5,4,0,5
+ _cp_set_op_params p2,FGE,1,5,4,0,5
+ _cp_set_op_params p2,DGE,1,5,4,0,5
+ _cp_set_op_params p2,FGT,1,5,4,0,5
+ _cp_set_op_params p2,DGT,1,5,4,0,5
+ _cp_set_op_params p2,CONVERT_I_TO_F,1,4,0,0,4
+ _cp_set_op_params p2,CONVERT_I_TO_D,1,4,0,0,4
+ _cp_set_op_params p2,CONVERT_F_TO_I,1,4,0,0,4
+ _cp_set_op_params p2,CONVERT_D_TO_I,1,4,0,0,4
+;
+; The next two lines were corrected on 1-4-89, Rich Parker
+;
+ _cp_set_op_params p2,CONVERT_F_TO_D,1,4,4,0,0
+ _cp_set_op_params p2,CONVERT_D_TO_F,1,4,4,0,0
+;
+ _cp_set_op_params p2,PASS_P,0,5,5,0,0
+ _cp_set_op_params p2,MINUSP,0,5,5,0,0
+ _cp_set_op_params p2,ABSP,0,5,5,0,0
+ _cp_set_op_params p2,SIGNT_TIMES_ABSP,0,6,6,0,5
+ _cp_set_op_params p2,P_PLUS_T,0,6,5,0,6
+ _cp_set_op_params p2,P_MINUS_T,0,6,5,0,6
+ _cp_set_op_params p2,MINUSP_PLUS_T,0,6,5,0,6
+ _cp_set_op_params p2,MINUSP_MINUS_T,0,6,5,0,6
+ _cp_set_op_params p2,ABS_P_PLUS_T,0,6,5,0,6
+ _cp_set_op_params p2,ABS_P_MINUS_T,0,6,5,0,6
+ _cp_set_op_params p2,ABSP_PLUS_ABST,0,6,5,0,6
+ _cp_set_op_params p2,ABSP_MINUS_ABST,0,6,5,0,6
+ _cp_set_op_params p2,ABS_ABSP_MINUS_ABST,0,6,5,0,6
+ _cp_set_op_params p2,P_TIMES_Q,0,6,5,6,0
+ _cp_set_op_params p2,MINUSP_TIMES_Q,0,6,5,6,0
+ _cp_set_op_params p2,ABS_P_TIMES_Q,0,6,5,6,0
+ _cp_set_op_params p2,COMPARE_P_AND_T,0,6,5,0,6
+ _cp_set_op_params p2,MAX_P_AND_T,0,6,5,0,6
+ _cp_set_op_params p2,MAX_ABSP_AND_ABST,0,6,5,0,6
+ _cp_set_op_params p2,MIN_P_AND_T,0,6,5,0,6
+ _cp_set_op_params p2,MIN_ABSP_AND_ABST,0,6,5,0,6
+ _cp_set_op_params p2,LIMIT_P_TO_MAGT,0,6,5,0,6
+ _cp_set_op_params p2,CONVERT_T_TO_INT,0,5,0,0,5
+ _cp_set_op_params p2,SCALE_T_TO_INT_BY_Q,0,6,0,6,5
+ _cp_set_op_params p2,PQ_PLUS_T,0,7,5,6,7
+ _cp_set_op_params p2,MINUSPQ_PLUS_T,0,7,5,6,7
+ _cp_set_op_params p2,PQ_MINUS_T,0,7,5,6,7
+ _cp_set_op_params p2,MINUSPQ_MINUS_T,0,7,5,6,7
+ _cp_set_op_params p2,ABSPQ_PLUS_ABST,0,7,5,6,7
+ _cp_set_op_params p2,MINUSABSPQ_PLUS_ABST,0,7,5,6,7
+ _cp_set_op_params p2,ABSPQ_MINUS_ABST,0,7,5,6,7
+ _cp_set_op_params p2,ROUND_T_TO_INT,0,5,0,0,5
+ _cp_set_op_params p2,RECIPROCAL_OF_P,0,5,5,0,0
+ _cp_set_op_params p2,CONVERT_T_TO_ALT,0,5,0,0,5
+ _cp_set_op_params p2,CONVERT_T_FROM_ALT,0,5,0,0,5
+ _cp_set_op_params p2,I_PASS_P,0,5,5,0,0
+ _cp_set_op_params p2,I_MINUSP,0,5,5,0,0
+ _cp_set_op_params p2,I_ABSP,0,5,5,0,0
+ _cp_set_op_params p2,I_SIGNT_TIMES_ABSP,0,6,6,0,5
+ _cp_set_op_params p2,I_P_PLUS_T,0,6,5,0,6
+ _cp_set_op_params p2,I_P_MINUS_T,0,6,5,0,6
+ _cp_set_op_params p2,I_MINUSP_PLUS_T,0,6,5,0,6
+ _cp_set_op_params p2,I_ABS_P_PLUS_T,0,6,5,0,6
+ _cp_set_op_params p2,I_ABS_P_MINUS_T,0,6,5,0,6
+ _cp_set_op_params p2,I_P_TIMES_Q,0,6,5,6,0
+ _cp_set_op_params p2,I_COMPARE_P_AND_T,0,6,5,0,6
+ _cp_set_op_params p2,I_MAX_P_AND_T,0,6,5,0,6
+ _cp_set_op_params p2,I_MIN_P_AND_T,0,6,5,0,6
+ _cp_set_op_params p2,I_CONVERT_T_TO_FLOAT,0,5,0,0,5
+ _cp_set_op_params p2,I_SCALE_T_TO_FLOAT_BY_Q,0,6,0,6,5
+ _cp_set_op_params p2,I_P_OR_T,0,6,5,0,6
+ _cp_set_op_params p2,I_P_AND_T,0,6,5,0,6
+ _cp_set_op_params p2,I_P_XOR_T,0,6,5,0,6
+ _cp_set_op_params p2,I_NOT_T,0,5,0,0,5
+ _cp_set_op_params p2,I_LSHIFT_P_BY_Q,0,6,5,6,0
+ _cp_set_op_params p2,I_ASHIFT_P_BY_Q,0,6,5,6,0
+ _cp_set_op_params p2,I_FSHIFT_PT_BY_Q,0,7,5,7,6
+ _cp_set_op_params p2,MOVE_P,0,5,5,0,0
+;
+;
+; if we couldn't find the op_code, flag an error
+;
+ .if _cp_op_type>=2
+ .err
+ .print "cp_build_inst_h: invalid Am29027 instruction mnemonic"
+ .exitm
+ .endif
+;
+; if number of parameters is incorrect, flag error
+;
+ .if $narg!=_cp_no_params
+ .err
+ .print "cp_build_inst_h: incorrect number of parameters"
+ .exitm
+ .endif
+;
+; find correct value for precision field, if appropriate
+;
+ .set _cp_prec_field,0 ; ** CORRECTION (1-4-89 Rich Parker)
+ .if _cp_op_type==0 ; need to look for precision
+ .set _cp_found_precision,0
+ .ifeqs "@p3@","D_D"
+ .set _cp_prec_field,CP_@p3
+ .set _cp_found_precision,1
+ .endif
+ .ifeqs "@p3@","D_S"
+ .set _cp_prec_field,CP_@p3
+ .set _cp_found_precision,1
+ .endif
+ .ifeqs "@p3@","S_D"
+ .set _cp_prec_field,CP_@p3
+ .set _cp_found_precision,1
+ .endif
+ .ifeqs "@p3@","S_S"
+ .set _cp_prec_field,CP_@p3
+ .set _cp_found_precision,1
+ .endif
+ .if _cp_found_precision==0
+ .err
+ .print "cp_build_inst_h: missing precision field"
+ .exitm
+ .endif
+ .endif
+;
+; find value for destination field
+;
+ .if _cp_op_type==0
+ .set _cp_dest_field_val,CP_DEST_EQ_@p4
+ .else
+ .set _cp_dest_field_val,CP_DEST_EQ_@p3
+ .endif
+;
+; find correct value for p select field
+;
+ .if _cp_p_paramno==0
+ .set _cp_p_field_val,0x00000000
+ .endif
+ .if _cp_p_paramno==4
+ .set _cp_p_field_val,CP_P_EQ_@p4
+ .endif
+ .if _cp_p_paramno==5
+ .set _cp_p_field_val,CP_P_EQ_@p5
+ .endif
+ .if _cp_p_paramno==6
+ .set _cp_p_field_val,CP_P_EQ_@p6
+ .endif
+ .if _cp_p_paramno==7
+ .set _cp_p_field_val,CP_P_EQ_@p7
+ .endif
+ .ifeqs "@p2@","I_NOT_T"
+ .set _cp_p_field_val,CP_P_EQ_IMINUS1
+ .endif
+;
+; find correct value for q select field
+;
+ .if _cp_q_paramno==0
+ .set _cp_q_field_val,0x00000000
+ .endif
+ .if _cp_q_paramno==4
+ .set _cp_q_field_val,CP_Q_EQ_@p4
+ .endif
+ .if _cp_q_paramno==5
+ .set _cp_q_field_val,CP_Q_EQ_@p5
+ .endif
+ .if _cp_q_paramno==6
+ .set _cp_q_field_val,CP_Q_EQ_@p6
+ .endif
+ .if _cp_q_paramno==7
+ .set _cp_q_field_val,CP_Q_EQ_@p7
+ .endif
+;
+; find correct value for t select field
+;
+ .if _cp_t_paramno==0
+ .set _cp_t_field_val,0x00000000
+ .endif
+ .if _cp_t_paramno==4
+ .set _cp_t_field_val,CP_T_EQ_@p4
+ .endif
+ .if _cp_t_paramno==5
+ .set _cp_t_field_val,CP_T_EQ_@p5
+ .endif
+ .if _cp_t_paramno==6
+ .set _cp_t_field_val,CP_T_EQ_@p6
+ .endif
+ .if _cp_t_paramno==7
+ .set _cp_t_field_val,CP_T_EQ_@p7
+ .endif
+;
+;
+ .set _cp_inst_word,CP_@p2@|_cp_prec_field|_cp_dest_field_val
+ .set _cp_inst_word,_cp_inst_word|_cp_p_field_val
+ .set _cp_inst_word,_cp_inst_word|_cp_q_field_val
+ .set _cp_inst_word,_cp_inst_word|_cp_t_field_val
+;
+ consth p1,_cp_inst_word
+;
+ .endm
+;
+;
+;
+;
+;============================================================================
+; MACRO NAME: cp_build_inst_l
+;
+; WRITTEN BY: Bob Perlman
+;
+; MOST RECENT UPDATE: April 24, 1988
+; : January 4, 1989 Rich Parker
+;
+; FUNCTION: Builds a 16 LSBs of a 32-bit Am29027 instruction in an
+; Am29000 g.p. register; the 16 MSBs of the register are
+; set to 0..
+;
+; PARAMETERS:
+; reg - the Am29000 g.p. register into which the instruction word
+; is to be written
+;
+; op_code - mnemonic specifying the operation to be performed
+; (e.g. FADD, P_TIMES_Q)
+;
+; precision - precision specification for destination, source operands:
+; D_S - double-prec. result, single-prec. input(s)
+; D_D - double-prec. result, double-prec. input(s)
+; S_S - single-prec. result, single-prec. input(s)
+; S_D - single-prec. result, double-prec. input(s)
+;
+; dest - destination for the operation result:
+; RF0 - store result in Am29027 register file location RF0
+; RF1 - store result in Am29027 register file location RF1
+; RF2 - store result in Am29027 register file location RF2
+; RF3 - store result in Am29027 register file location RF3
+; RF4 - store result in Am29027 register file location RF4
+; RF5 - store result in Am29027 register file location RF5
+; RF6 - store result in Am29027 register file location RF6
+; RF7 - store result in Am29027 register file location RF7
+; GP - result is to be stored in an Am29000 g.p. register
+; with a read_dp, read_sp, or read_int macro.
+;
+; source1,
+; source2,
+; source3 - source operand specifications:
+; R - take source from Am29027 register R
+; S - take source from Am29027 register S
+; RF0 - take source from Am29027 register file location RF0
+; RF1 - take source from Am29027 register file location RF1
+; RF2 - take source from Am29027 register file location RF2
+; RF3 - take source from Am29027 register file location RF3
+; RF4 - take source from Am29027 register file location RF4
+; RF5 - take source from Am29027 register file location RF5
+; RF6 - take source from Am29027 register file location RF6
+; RF7 - take source from Am29027 register file location RF7
+; 0 - source is 0
+; ONE_HALF - source is constant .5 (f.p. operations only)
+; IMINUS1 - source is constant -1 (integer operations only)
+; 1 - source is constant 1
+; 2 - source is constant 2
+; 3 - source is constant 3
+; PI - source is constant pi (f.p. operations only)
+; IMINUSMAX - source is -(2**63) (integer operations only)
+;
+;
+; USAGE:
+;
+; cp_build_inst_l reg,op_code,[precision,]dest,source1[,source2][,source3]
+;
+; This macro is similar to cp_build_inst, but creates only the 16 LSBs
+; of the 32-bit Am29027 instruction word; the 16 MSBs of the target
+; register are set to 0. This macro is useful in cases
+; where it is helpful to specify instruction LSBs and MSBs separately,
+; to improve instruction scheduling.
+;
+; Syntax and usage are identical to that of cp_build_inst.
+;
+; NOTE: This macro references macro _cp_set_op_params, which appears
+; in the assembly listing for macro _cp_build_inst.
+;
+;
+;============================================================================
+;
+ .macro cp_build_inst_l,p1,p2,p3,p4,p5,p6,p7
+;
+ .if $narg<=3
+ .err
+ .print "cp_build_inst_h: missing parameter(s)"
+ .exitm
+ .endif
+;
+; classify operation type
+;
+ .set _cp_op_type,255
+
+ _cp_set_op_params p2,FADD,1,5,4,0,5
+ _cp_set_op_params p2,DADD,1,5,4,0,5
+ _cp_set_op_params p2,FSUB,1,5,4,0,5
+ _cp_set_op_params p2,DSUB,1,5,4,0,5
+ _cp_set_op_params p2,FMUL,1,5,4,5,0
+ _cp_set_op_params p2,DMUL,1,5,4,5,0
+ _cp_set_op_params p2,FEQ,1,5,4,0,5
+ _cp_set_op_params p2,DEQ,1,5,4,0,5
+ _cp_set_op_params p2,FGE,1,5,4,0,5
+ _cp_set_op_params p2,DGE,1,5,4,0,5
+ _cp_set_op_params p2,FGT,1,5,4,0,5
+ _cp_set_op_params p2,DGT,1,5,4,0,5
+ _cp_set_op_params p2,CONVERT_I_TO_F,1,4,0,0,4
+ _cp_set_op_params p2,CONVERT_I_TO_D,1,4,0,0,4
+ _cp_set_op_params p2,CONVERT_F_TO_I,1,4,0,0,4
+ _cp_set_op_params p2,CONVERT_D_TO_I,1,4,0,0,4
+;
+; The next two lines were corrected on 1-4-89, Rich Parker
+;
+ _cp_set_op_params p2,CONVERT_F_TO_D,1,4,4,0,0
+ _cp_set_op_params p2,CONVERT_D_TO_F,1,4,4,0,0
+;
+ _cp_set_op_params p2,PASS_P,0,5,5,0,0
+ _cp_set_op_params p2,MINUSP,0,5,5,0,0
+ _cp_set_op_params p2,ABSP,0,5,5,0,0
+ _cp_set_op_params p2,SIGNT_TIMES_ABSP,0,6,6,0,5
+ _cp_set_op_params p2,P_PLUS_T,0,6,5,0,6
+ _cp_set_op_params p2,P_MINUS_T,0,6,5,0,6
+ _cp_set_op_params p2,MINUSP_PLUS_T,0,6,5,0,6
+ _cp_set_op_params p2,MINUSP_MINUS_T,0,6,5,0,6
+ _cp_set_op_params p2,ABS_P_PLUS_T,0,6,5,0,6
+ _cp_set_op_params p2,ABS_P_MINUS_T,0,6,5,0,6
+ _cp_set_op_params p2,ABSP_PLUS_ABST,0,6,5,0,6
+ _cp_set_op_params p2,ABSP_MINUS_ABST,0,6,5,0,6
+ _cp_set_op_params p2,ABS_ABSP_MINUS_ABST,0,6,5,0,6
+ _cp_set_op_params p2,P_TIMES_Q,0,6,5,6,0
+ _cp_set_op_params p2,MINUSP_TIMES_Q,0,6,5,6,0
+ _cp_set_op_params p2,ABS_P_TIMES_Q,0,6,5,6,0
+ _cp_set_op_params p2,COMPARE_P_AND_T,0,6,5,0,6
+ _cp_set_op_params p2,MAX_P_AND_T,0,6,5,0,6
+ _cp_set_op_params p2,MAX_ABSP_AND_ABST,0,6,5,0,6
+ _cp_set_op_params p2,MIN_P_AND_T,0,6,5,0,6
+ _cp_set_op_params p2,MIN_ABSP_AND_ABST,0,6,5,0,6
+ _cp_set_op_params p2,LIMIT_P_TO_MAGT,0,6,5,0,6
+ _cp_set_op_params p2,CONVERT_T_TO_INT,0,5,0,0,5
+ _cp_set_op_params p2,SCALE_T_TO_INT_BY_Q,0,6,0,6,5
+ _cp_set_op_params p2,PQ_PLUS_T,0,7,5,6,7
+ _cp_set_op_params p2,MINUSPQ_PLUS_T,0,7,5,6,7
+ _cp_set_op_params p2,PQ_MINUS_T,0,7,5,6,7
+ _cp_set_op_params p2,MINUSPQ_MINUS_T,0,7,5,6,7
+ _cp_set_op_params p2,ABSPQ_PLUS_ABST,0,7,5,6,7
+ _cp_set_op_params p2,MINUSABSPQ_PLUS_ABST,0,7,5,6,7
+ _cp_set_op_params p2,ABSPQ_MINUS_ABST,0,7,5,6,7
+ _cp_set_op_params p2,ROUND_T_TO_INT,0,5,0,0,5
+ _cp_set_op_params p2,RECIPROCAL_OF_P,0,5,5,0,0
+ _cp_set_op_params p2,CONVERT_T_TO_ALT,0,5,0,0,5
+ _cp_set_op_params p2,CONVERT_T_FROM_ALT,0,5,0,0,5
+ _cp_set_op_params p2,I_PASS_P,0,5,5,0,0
+ _cp_set_op_params p2,I_MINUSP,0,5,5,0,0
+ _cp_set_op_params p2,I_ABSP,0,5,5,0,0
+ _cp_set_op_params p2,I_SIGNT_TIMES_ABSP,0,6,6,0,5
+ _cp_set_op_params p2,I_P_PLUS_T,0,6,5,0,6
+ _cp_set_op_params p2,I_P_MINUS_T,0,6,5,0,6
+ _cp_set_op_params p2,I_MINUSP_PLUS_T,0,6,5,0,6
+ _cp_set_op_params p2,I_ABS_P_PLUS_T,0,6,5,0,6
+ _cp_set_op_params p2,I_ABS_P_MINUS_T,0,6,5,0,6
+ _cp_set_op_params p2,I_P_TIMES_Q,0,6,5,6,0
+ _cp_set_op_params p2,I_COMPARE_P_AND_T,0,6,5,0,6
+ _cp_set_op_params p2,I_MAX_P_AND_T,0,6,5,0,6
+ _cp_set_op_params p2,I_MIN_P_AND_T,0,6,5,0,6
+ _cp_set_op_params p2,I_CONVERT_T_TO_FLOAT,0,5,0,0,5
+ _cp_set_op_params p2,I_SCALE_T_TO_FLOAT_BY_Q,0,6,0,6,5
+ _cp_set_op_params p2,I_P_OR_T,0,6,5,0,6
+ _cp_set_op_params p2,I_P_AND_T,0,6,5,0,6
+ _cp_set_op_params p2,I_P_XOR_T,0,6,5,0,6
+ _cp_set_op_params p2,I_NOT_T,0,5,0,0,5
+ _cp_set_op_params p2,I_LSHIFT_P_BY_Q,0,6,5,6,0
+ _cp_set_op_params p2,I_ASHIFT_P_BY_Q,0,6,5,6,0
+ _cp_set_op_params p2,I_FSHIFT_PT_BY_Q,0,7,5,7,6
+ _cp_set_op_params p2,MOVE_P,0,5,5,0,0
+;
+;
+; if we couldn't find the op_code, flag an error
+;
+ .if _cp_op_type>=2
+ .err
+ .print "cp_build_inst_h: invalid Am29027 instruction mnemonic"
+ .exitm
+ .endif
+;
+; if number of parameters is incorrect, flag error
+;
+ .if $narg!=_cp_no_params
+ .err
+ .print "cp_build_inst_h: incorrect number of parameters"
+ .exitm
+ .endif
+;
+; find correct value for precision field, if appropriate
+;
+ .set _cp_prec_field,0 ; CORRECTION (1-4-89 Rich Parker)
+ .if _cp_op_type==0 ; need to look for precision
+ .set _cp_found_precision,0
+ .ifeqs "@p3@","D_D"
+ .set _cp_prec_field,CP_@p3
+ .set _cp_found_precision,1
+ .endif
+ .ifeqs "@p3@","D_S"
+ .set _cp_prec_field,CP_@p3
+ .set _cp_found_precision,1
+ .endif
+ .ifeqs "@p3@","S_D"
+ .set _cp_prec_field,CP_@p3
+ .set _cp_found_precision,1
+ .endif
+ .ifeqs "@p3@","S_S"
+ .set _cp_prec_field,CP_@p3
+ .set _cp_found_precision,1
+ .endif
+ .if _cp_found_precision==0
+ .err
+ .print "cp_build_inst_h: missing precision field"
+ .exitm
+ .endif
+ .endif
+;
+; find value for destination field
+;
+ .if _cp_op_type==0
+ .set _cp_dest_field_val,CP_DEST_EQ_@p4
+ .else
+ .set _cp_dest_field_val,CP_DEST_EQ_@p3
+ .endif
+;
+; find correct value for p select field
+;
+ .if _cp_p_paramno==0
+ .set _cp_p_field_val,0x00000000
+ .endif
+ .if _cp_p_paramno==4
+ .set _cp_p_field_val,CP_P_EQ_@p4
+ .endif
+ .if _cp_p_paramno==5
+ .set _cp_p_field_val,CP_P_EQ_@p5
+ .endif
+ .if _cp_p_paramno==6
+ .set _cp_p_field_val,CP_P_EQ_@p6
+ .endif
+ .if _cp_p_paramno==7
+ .set _cp_p_field_val,CP_P_EQ_@p7
+ .endif
+ .ifeqs "@p2@","I_NOT_T"
+ .set _cp_p_field_val,CP_P_EQ_IMINUS1
+ .endif
+;
+; find correct value for q select field
+;
+ .if _cp_q_paramno==0
+ .set _cp_q_field_val,0x00000000
+ .endif
+ .if _cp_q_paramno==4
+ .set _cp_q_field_val,CP_Q_EQ_@p4
+ .endif
+ .if _cp_q_paramno==5
+ .set _cp_q_field_val,CP_Q_EQ_@p5
+ .endif
+ .if _cp_q_paramno==6
+ .set _cp_q_field_val,CP_Q_EQ_@p6
+ .endif
+ .if _cp_q_paramno==7
+ .set _cp_q_field_val,CP_Q_EQ_@p7
+ .endif
+;
+; find correct value for t select field
+;
+ .if _cp_t_paramno==0
+ .set _cp_t_field_val,0x00000000
+ .endif
+ .if _cp_t_paramno==4
+ .set _cp_t_field_val,CP_T_EQ_@p4
+ .endif
+ .if _cp_t_paramno==5
+ .set _cp_t_field_val,CP_T_EQ_@p5
+ .endif
+ .if _cp_t_paramno==6
+ .set _cp_t_field_val,CP_T_EQ_@p6
+ .endif
+ .if _cp_t_paramno==7
+ .set _cp_t_field_val,CP_T_EQ_@p7
+ .endif
+;
+;
+ .set _cp_inst_word,CP_@p2@|_cp_prec_field|_cp_dest_field_val
+ .set _cp_inst_word,_cp_inst_word|_cp_p_field_val
+ .set _cp_inst_word,_cp_inst_word|_cp_q_field_val
+ .set _cp_inst_word,_cp_inst_word|_cp_t_field_val
+;
+ const p1,_cp_inst_word
+;
+ .endm
+;
+; end of file fpsymbol.h