1480 lines
38 KiB
Scheme
1480 lines
38 KiB
Scheme
; Ubicom IP2K CPU description. -*- Scheme -*-
|
||
; Copyright (C) 2002, 2009, 2011 Free Software Foundation, Inc.
|
||
;
|
||
; Contributed by Red Hat Inc;
|
||
;
|
||
; This file is part of the GNU Binutils.
|
||
;
|
||
; This program is free software; you can redistribute it and/or modify
|
||
; it under the terms of the GNU General Public License as published by
|
||
; the Free Software Foundation; either version 3 of the License, or
|
||
; (at your option) any later version.
|
||
;
|
||
; This program is distributed in the hope that it will be useful,
|
||
; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
; GNU General Public License for more details.
|
||
;
|
||
; You should have received a copy of the GNU General Public License
|
||
; along with this program; if not, write to the Free Software
|
||
; Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
|
||
; MA 02110-1301, USA.
|
||
|
||
(define-rtl-version 0 8)
|
||
|
||
(include "simplify.inc")
|
||
|
||
; define-arch must appear first
|
||
|
||
(define-arch
|
||
(name ip2k) ; name of cpu family
|
||
(comment "Ubicom IP2000 family")
|
||
(default-alignment aligned)
|
||
(insn-lsb0? #t)
|
||
(machs ip2022 ip2022ext)
|
||
(isas ip2k)
|
||
)
|
||
|
||
; Attributes.
|
||
|
||
(define-attr
|
||
(for insn)
|
||
(type boolean)
|
||
(name EXT-SKIP-INSN)
|
||
(comment "instruction is a PAGE, LOADL, LOADH or BREAKX instruction")
|
||
)
|
||
|
||
(define-attr
|
||
(for insn)
|
||
(type boolean)
|
||
(name SKIPA)
|
||
(comment "instruction is a SKIP instruction")
|
||
)
|
||
|
||
; Instruction set parameters.
|
||
|
||
(define-isa
|
||
(name ip2k)
|
||
(comment "Ubicom IP2000 ISA")
|
||
|
||
(default-insn-word-bitsize 16)
|
||
(default-insn-bitsize 16)
|
||
(base-insn-bitsize 16)
|
||
)
|
||
|
||
; Cpu family definitions.
|
||
|
||
|
||
(define-cpu
|
||
; cpu names must be distinct from the architecture name and machine names.
|
||
(name ip2kbf)
|
||
(comment "Ubicom IP2000 Family")
|
||
(endian big)
|
||
(word-bitsize 16)
|
||
)
|
||
|
||
(define-mach
|
||
(name ip2022)
|
||
(comment "Ubicom IP2022")
|
||
(cpu ip2kbf)
|
||
)
|
||
|
||
(define-mach
|
||
(name ip2022ext)
|
||
(comment "Ubicom IP2022 extended")
|
||
(cpu ip2kbf)
|
||
)
|
||
|
||
|
||
; Model descriptions.
|
||
|
||
(define-model
|
||
(name ip2k) (comment "VPE 2xxx") (attrs)
|
||
(mach ip2022ext)
|
||
|
||
(unit u-exec "Execution Unit" ()
|
||
1 1 ; issue done
|
||
() ; state
|
||
() ; inputs
|
||
() ; outputs
|
||
() ; profile action (default)
|
||
)
|
||
)
|
||
|
||
|
||
; FIXME: It might simplify things to separate the execute process from the
|
||
; one that updates the PC.
|
||
|
||
; Instruction fields.
|
||
;
|
||
; Attributes:
|
||
; XXX: what VPE attrs
|
||
; PCREL-ADDR: pc relative value (for reloc and disassembly purposes)
|
||
; ABS-ADDR: absolute address (for reloc and disassembly purposes?)
|
||
; RESERVED: bits are not used to decode insn, must be all 0
|
||
; RELOC: there is a relocation associated with this field (experiment)
|
||
|
||
|
||
(dnf f-imm8 "imm8" () 7 8)
|
||
(dnf f-reg "reg" (ABS-ADDR) 8 9)
|
||
(dnf f-addr16cjp "addr16cjp" (ABS-ADDR) 12 13)
|
||
(dnf f-dir "dir" () 9 1)
|
||
(dnf f-bitno "bit number" () 11 3)
|
||
(dnf f-op3 "op3" () 15 3)
|
||
(dnf f-op4 "op4" () 15 4)
|
||
(dnf f-op4mid "op4mid" () 11 4)
|
||
(dnf f-op6 "op6" () 15 6)
|
||
(dnf f-op8 "op8" () 15 8)
|
||
(dnf f-op6-10low "op6-10low" () 9 10)
|
||
(dnf f-op6-7low "op6-7low" () 9 7)
|
||
(dnf f-reti3 "reti3" () 2 3)
|
||
(dnf f-skipb "sb/snb" (ABS-ADDR) 12 1)
|
||
(dnf f-page3 "page3" () 2 3)
|
||
;(define-ifield (name f-page3) (comment "page3") (attrs) (start 2) (length 3)
|
||
; (encode (value pc) (srl WI value 13))
|
||
; (decode (value pc) (sll WI value 13))
|
||
;)
|
||
; To fix the page/call asymmetry
|
||
;(define-ifield (name f-page3) (comment "page3") (attrs) (start 2) (length 3)
|
||
; (encode (value pc) (srl WI value 13))
|
||
; (decode (value pc) (sll WI value 13))
|
||
;)
|
||
|
||
|
||
|
||
; Enums.
|
||
|
||
; insn-op6: bits 15-10
|
||
(define-normal-insn-enum insn-op6 "op6 enums" () OP6_ f-op6
|
||
(OTHER1 OTHER2 SUB DEC OR AND XOR ADD
|
||
TEST NOT INC DECSZ RR RL SWAP INCSZ
|
||
CSE POP SUBC DECSNZ MULU MULS INCSNZ ADDC
|
||
- - - - - - - -
|
||
- - - - - - - -
|
||
- - - - - - - -
|
||
- - - - - - - -
|
||
- - - - - - - -
|
||
)
|
||
)
|
||
|
||
; insn-dir: bit 9
|
||
(define-normal-insn-enum insn-dir "dir enums" () DIR_ f-dir
|
||
; This bit specifies the polarity of many two-operand instructions:
|
||
; TO_W writes result to W regiser (eg. ADDC W,$fr)
|
||
; NOTTO_W writes result in general register (eg. ADDC $fr,W)
|
||
(TO_W NOTTO_W)
|
||
)
|
||
|
||
|
||
; insn-op4: bits 15-12
|
||
(define-normal-insn-enum insn-op4 "op4 enums" () OP4_ f-op4
|
||
(- - - - - - - LITERAL
|
||
CLRB SETB SNB SB - - - -
|
||
)
|
||
)
|
||
|
||
; insn-op4mid: bits 11-8
|
||
; used for f-op4=LITERAL
|
||
(define-normal-insn-enum insn-op4mid "op4mid enums" () OP4MID_ f-op4mid
|
||
(LOADH_L LOADL_L MULU_L MULS_L PUSH_L - CSNE_L CSE_L
|
||
RETW_L CMP_L SUB_L ADD_L MOV_L OR_L AND_L XOR_L)
|
||
)
|
||
|
||
; insn-op3: bits 15-13
|
||
(define-normal-insn-enum insn-op3 "op3 enums" () OP3_ f-op3
|
||
(- - - - - - CALL JMP)
|
||
)
|
||
|
||
|
||
|
||
; Hardware pieces.
|
||
|
||
; Bank-relative general purpose registers
|
||
|
||
; (define-pmacro (build-reg-name n) (.splice (.str "$" n) n))
|
||
|
||
(define-keyword
|
||
(name register-names)
|
||
(enum-prefix H-REGISTERS-)
|
||
(values
|
||
; These are the "Special Purpose Registers" that are not reserved
|
||
("ADDRSEL" #x2) ("ADDRX" #x3)
|
||
("IPH" #x4) ("IPL" #x5) ("SPH" #x6) ("SPL" #x7)
|
||
("PCH" #x8) ("PCL" #x9) ("WREG" #xA) ("STATUS" #xB)
|
||
("DPH" #xC) ("DPL" #xD) ("SPDREG" #xE) ("MULH" #xF)
|
||
("ADDRH" #x10) ("ADDRL" #x11) ("DATAH" #x12) ("DATAL" #x13)
|
||
("INTVECH" #x14) ("INTVECL" #x15) ("INTSPD" #x16) ("INTF" #x17)
|
||
("INTE" #x18) ("INTED" #x19) ("FCFG" #x1A) ("TCTRL" #x1B)
|
||
("XCFG" #x1C) ("EMCFG" #x1D) ("IPCH" #x1E) ("IPCL" #x1F)
|
||
("RAIN" #x20) ("RAOUT" #x21) ("RADIR" #x22) ("LFSRH" #x23)
|
||
("RBIN" #x24) ("RBOUT" #x25) ("RBDIR" #x26) ("LFSRL" #x27)
|
||
("RCIN" #x28) ("RCOUT" #x29) ("RCDIR" #x2A) ("LFSRA" #x2B)
|
||
("RDIN" #x2C) ("RDOUT" #x2D) ("RDDIR" #x2E)
|
||
("REIN" #x30) ("REOUT" #x31) ("REDIR" #x32)
|
||
("RFIN" #x34) ("RFOUT" #x35) ("RFDIR" #x36)
|
||
("RGOUT" #x39) ("RGDIR" #x3A)
|
||
("RTTMR" #x40) ("RTCFG" #x41) ("T0TMR" #x42) ("T0CFG" #x43)
|
||
("T1CNTH" #x44) ("T1CNTL" #x45) ("T1CAP1H" #x46) ("T1CAP1L" #x47)
|
||
("T1CAP2H" #x48) ("T1CMP2H" #x48) ("T1CAP2L" #x49) ("T1CMP2L" #x49) ; note aliases
|
||
("T1CMP1H" #x4A) ("T1CMP1L" #x4B)
|
||
("T1CFG1H" #x4C) ("T1CFG1L" #x4D) ("T1CFG2H" #x4E) ("T1CFG2L" #x4F)
|
||
("ADCH" #x50) ("ADCL" #x51) ("ADCCFG" #x52) ("ADCTMR" #x53)
|
||
("T2CNTH" #x54) ("T2CNTL" #x55) ("T2CAP1H" #x56) ("T2CAP1L" #x57)
|
||
("T2CAP2H" #x58) ("T2CMP2H" #x58) ("T2CAP2L" #x59) ("T2CMP2L" #x59) ; note aliases
|
||
("T2CMP1H" #x5A) ("T2CMP1L" #x5B)
|
||
("T2CFG1H" #x5C) ("T2CFG1L" #x5D) ("T2CFG2H" #x5E) ("T2CFG2L" #x5F)
|
||
("S1TMRH" #x60) ("S1TMRL" #x61) ("S1TBUFH" #x62) ("S1TBUFL" #x63)
|
||
("S1TCFG" #x64) ("S1RCNT" #x65) ("S1RBUFH" #x66) ("S1RBUFL" #x67)
|
||
("S1RCFG" #x68) ("S1RSYNC" #x69) ("S1INTF" #x6A) ("S1INTE" #x6B)
|
||
("S1MODE" #x6C) ("S1SMASK" #x6D) ("PSPCFG" #x6E) ("CMPCFG" #x6F)
|
||
("S2TMRH" #x70) ("S2TMRL" #x71) ("S2TBUFH" #x72) ("S2TBUFL" #x73)
|
||
("S2TCFG" #x74) ("S2RCNT" #x75) ("S2RBUFH" #x76) ("S2RBUFL" #x77)
|
||
("S2RCFG" #x78) ("S2RSYNC" #x79) ("S2INTF" #x7A) ("S2INTE" #x7B)
|
||
("S2MODE" #x7C) ("S2SMASK" #x7D) ("CALLH" #x7E) ("CALLL" #x7F))
|
||
)
|
||
|
||
(define-hardware
|
||
(name h-spr)
|
||
(comment "special-purpose registers")
|
||
(type register QI (128))
|
||
(get (index) (c-call QI "get_spr" index ))
|
||
(set (index newval) (c-call VOID "set_spr" index newval ))
|
||
)
|
||
|
||
|
||
;;(define-hardware
|
||
;; (name h-gpr-global)
|
||
;; (comment "gpr registers - global")
|
||
;; (type register QI (128))
|
||
;;)
|
||
|
||
; The general register
|
||
|
||
(define-hardware
|
||
(name h-registers)
|
||
(comment "all addressable registers")
|
||
(attrs VIRTUAL)
|
||
(type register QI (512))
|
||
(get (index) (c-call QI "get_h_registers" index ))
|
||
(set (index newval) (c-call VOID "set_h_registers" index newval ))
|
||
)
|
||
|
||
; The hardware stack.
|
||
; Use {push,pop}_pc_stack c-calls to operate on this hardware element.
|
||
|
||
(define-hardware
|
||
(name h-stack)
|
||
(comment "hardware stack")
|
||
(type register UHI (16))
|
||
)
|
||
|
||
(dsh h-pabits "page bits" () (register QI))
|
||
(dsh h-zbit "zero bit" () (register BI))
|
||
(dsh h-cbit "carry bit" () (register BI))
|
||
(dsh h-dcbit "digit-carry bit" () (register BI))
|
||
(dnh h-pc "program counter" (PC PROFILE) (pc) () () ())
|
||
|
||
|
||
; Operands
|
||
|
||
(define-operand (name addr16cjp) (comment "13-bit address") (attrs)
|
||
(type h-uint) (index f-addr16cjp) (handlers (parse "addr16_cjp") (print "dollarhex_cj"))) ; overload lit8 printer
|
||
(define-operand (name fr) (comment "register") (attrs)
|
||
(type h-registers) (index f-reg) (handlers (parse "fr") (print "fr")))
|
||
(define-operand (name lit8) (comment "8-bit signed literal") (attrs)
|
||
(type h-sint) (index f-imm8) (handlers (parse "lit8") (print "dollarhex8")))
|
||
(define-operand (name bitno) (comment "bit number") (attrs)
|
||
(type h-uint) (index f-bitno) (handlers (parse "bit3")(print "decimal")))
|
||
(define-operand (name addr16p) (comment "page number") (attrs)
|
||
(type h-uint) (index f-page3) (handlers (parse "addr16_cjp") (print "dollarhex_p")))
|
||
(define-operand (name addr16h) (comment "high 8 bits of address") (attrs)
|
||
(type h-uint) (index f-imm8) (handlers (parse "addr16") (print "dollarhex_addr16h")))
|
||
(define-operand (name addr16l) (comment "low 8 bits of address") (attrs)
|
||
(type h-uint) (index f-imm8) (handlers (parse "addr16") (print "dollarhex_addr16l")))
|
||
(define-operand (name reti3) (comment "reti flags") (attrs)
|
||
(type h-uint) (index f-reti3) (handlers (print "dollarhex")))
|
||
(dnop pabits "page bits" () h-pabits f-nil)
|
||
(dnop zbit "zero bit" () h-zbit f-nil)
|
||
(dnop cbit "carry bit" () h-cbit f-nil)
|
||
(dnop dcbit "digit carry bit" () h-dcbit f-nil)
|
||
;;(dnop bank "bank register" () h-bank-no f-nil)
|
||
|
||
(define-pmacro w (reg h-spr #x0A))
|
||
(define-pmacro mulh (reg h-spr #x0F))
|
||
(define-pmacro dph (reg h-spr #x0C))
|
||
(define-pmacro dpl (reg h-spr #x0D))
|
||
(define-pmacro sph (reg h-spr #x06))
|
||
(define-pmacro spl (reg h-spr #x07))
|
||
(define-pmacro iph (reg h-spr #x04))
|
||
(define-pmacro ipl (reg h-spr #x05))
|
||
(define-pmacro addrh (reg h-spr #x10))
|
||
(define-pmacro addrl (reg h-spr #x11))
|
||
|
||
|
||
|
||
; Pseudo-RTL for DC flag calculations
|
||
; "DC" = "digit carry", ie carry between nibbles
|
||
(define-pmacro (add-dcflag a b c)
|
||
(add-cflag (sll QI a 4) (sll QI b 4) c)
|
||
)
|
||
|
||
(define-pmacro (sub-dcflag a b c)
|
||
(sub-cflag (sll QI a 4) (sll QI b 4) c)
|
||
)
|
||
|
||
; Check to see if an fr is one of IPL, SPL, DPL, ADDRL, PCL.
|
||
(define-pmacro (LregCheck isLreg fr9bit)
|
||
(sequence()
|
||
(set isLreg #x0) ;; Assume it's not an Lreg
|
||
(if (or (or (eq fr9bit #x5) (eq fr9bit #x7))
|
||
(or (eq fr9bit #x9)
|
||
(or (eq fr9bit #xd) (eq fr9bit #x11))))
|
||
(set isLreg #x1)
|
||
)
|
||
)
|
||
)
|
||
|
||
|
||
; Instructions, in order of the "Instruction Set Map" table on
|
||
; pp 19-20 of IP2022 spec V1.09
|
||
|
||
(dni jmp "Jump"
|
||
()
|
||
"jmp $addr16cjp"
|
||
(+ OP3_JMP addr16cjp)
|
||
(set pc (or (sll pabits 13) addr16cjp))
|
||
()
|
||
)
|
||
|
||
; note that in call, we push pc instead of pc + 1 because the ip2k increments
|
||
; the pc prior to execution of the instruction
|
||
(dni call "Call"
|
||
()
|
||
"call $addr16cjp"
|
||
(+ OP3_CALL addr16cjp)
|
||
(sequence ()
|
||
(c-call "push_pc_stack" pc)
|
||
(set pc (or (sll pabits 13) addr16cjp)))
|
||
()
|
||
)
|
||
|
||
(dni sb "Skip if bit set"
|
||
()
|
||
"sb $fr,$bitno"
|
||
(+ OP4_SB bitno fr)
|
||
(if (and fr (sll 1 bitno))
|
||
(skip 1))
|
||
()
|
||
)
|
||
|
||
(dni snb "Skip if bit clear"
|
||
()
|
||
"snb $fr,$bitno"
|
||
(+ OP4_SNB bitno fr)
|
||
(if (not (and fr (sll 1 bitno)))
|
||
(skip 1))
|
||
()
|
||
)
|
||
|
||
(dni setb "Set bit"
|
||
()
|
||
"setb $fr,$bitno"
|
||
(+ OP4_SETB bitno fr)
|
||
(set fr (or fr (sll 1 bitno)))
|
||
()
|
||
)
|
||
|
||
(dni clrb "Clear bit"
|
||
()
|
||
"clrb $fr,$bitno"
|
||
(+ OP4_CLRB bitno fr)
|
||
(set fr (and fr (inv (sll 1 bitno))))
|
||
()
|
||
)
|
||
|
||
(dni xorw_l "XOR W,literal"
|
||
()
|
||
"xor W,#$lit8"
|
||
(+ OP4_LITERAL OP4MID_XOR_L lit8)
|
||
(sequence ()
|
||
(set w (xor w lit8))
|
||
(set zbit (zflag w)))
|
||
()
|
||
)
|
||
|
||
(dni andw_l "AND W,literal"
|
||
()
|
||
"and W,#$lit8"
|
||
(+ OP4_LITERAL OP4MID_AND_L lit8)
|
||
(sequence ()
|
||
(set w (and w lit8))
|
||
(set zbit (zflag w)))
|
||
()
|
||
)
|
||
|
||
(dni orw_l "OR W,literal"
|
||
()
|
||
"or W,#$lit8"
|
||
(+ OP4_LITERAL OP4MID_OR_L lit8)
|
||
(sequence ()
|
||
(set w (or w lit8))
|
||
(set zbit (zflag w)))
|
||
()
|
||
)
|
||
|
||
(dni addw_l "ADD W,literal"
|
||
()
|
||
"add W,#$lit8"
|
||
(+ OP4_LITERAL OP4MID_ADD_L lit8)
|
||
(sequence ()
|
||
(set cbit (add-cflag w lit8 0))
|
||
(set dcbit (add-dcflag w lit8 0))
|
||
(set w (add w lit8))
|
||
(set zbit (zflag w)))
|
||
()
|
||
)
|
||
|
||
(dni subw_l "SUB W,literal"
|
||
()
|
||
"sub W,#$lit8"
|
||
(+ OP4_LITERAL OP4MID_SUB_L lit8)
|
||
(sequence ()
|
||
(set cbit (not (sub-cflag lit8 w 0)))
|
||
(set dcbit (not (sub-dcflag lit8 w 0)))
|
||
(set zbit (zflag (sub w lit8)))
|
||
(set w (sub lit8 w)))
|
||
()
|
||
)
|
||
|
||
(dni cmpw_l "CMP W,literal"
|
||
()
|
||
"cmp W,#$lit8"
|
||
(+ OP4_LITERAL OP4MID_CMP_L lit8)
|
||
(sequence ()
|
||
(set cbit (not (sub-cflag lit8 w 0)))
|
||
(set dcbit (not (sub-dcflag lit8 w 0)))
|
||
(set zbit (zflag (sub w lit8))))
|
||
()
|
||
)
|
||
|
||
(dni retw_l "RETW literal"
|
||
()
|
||
"retw #$lit8"
|
||
(+ OP4_LITERAL OP4MID_RETW_L lit8)
|
||
(sequence ((USI new_pc))
|
||
(set w lit8)
|
||
(set new_pc (c-call UHI "pop_pc_stack"))
|
||
(set pabits (srl new_pc 13))
|
||
(set pc new_pc))
|
||
()
|
||
)
|
||
|
||
(dni csew_l "CSE W,literal"
|
||
()
|
||
"cse W,#$lit8"
|
||
(+ OP4_LITERAL OP4MID_CSE_L lit8)
|
||
(if (eq w lit8)
|
||
(skip 1))
|
||
()
|
||
)
|
||
|
||
(dni csnew_l "CSNE W,literal"
|
||
()
|
||
"csne W,#$lit8"
|
||
(+ OP4_LITERAL OP4MID_CSNE_L lit8)
|
||
(if (not (eq w lit8))
|
||
(skip 1))
|
||
()
|
||
)
|
||
|
||
(dni push_l "Push #lit8"
|
||
()
|
||
"push #$lit8"
|
||
(+ OP4_LITERAL OP4MID_PUSH_L lit8)
|
||
(sequence ()
|
||
(c-call "push" lit8)
|
||
(c-call VOID "adjuststackptr" (const -1))
|
||
|
||
)
|
||
()
|
||
)
|
||
|
||
(dni mulsw_l "Multiply W,literal (signed)"
|
||
()
|
||
"muls W,#$lit8"
|
||
(+ OP4_LITERAL OP4MID_MULS_L lit8)
|
||
(sequence ((SI tmp))
|
||
(set tmp (mul (ext SI w) (ext SI (and UQI #xff lit8))))
|
||
(set w (and tmp #xFF))
|
||
(set mulh (srl tmp 8)))
|
||
()
|
||
)
|
||
|
||
(dni muluw_l "Multiply W,literal (unsigned)"
|
||
()
|
||
"mulu W,#$lit8"
|
||
(+ OP4_LITERAL OP4MID_MULU_L lit8)
|
||
(sequence ((USI tmp))
|
||
(set tmp (and #xFFFF (mul (zext USI w) (zext USI lit8))))
|
||
(set w (and tmp #xFF))
|
||
(set mulh (srl tmp 8)))
|
||
()
|
||
)
|
||
|
||
(dni loadl_l "LoadL literal"
|
||
(EXT-SKIP-INSN)
|
||
"loadl #$lit8"
|
||
(+ OP4_LITERAL OP4MID_LOADL_L lit8)
|
||
(set dpl (and lit8 #x00FF))
|
||
()
|
||
)
|
||
|
||
(dni loadh_l "LoadH literal"
|
||
(EXT-SKIP-INSN)
|
||
"loadh #$lit8"
|
||
(+ OP4_LITERAL OP4MID_LOADH_L lit8)
|
||
(set dph (and lit8 #x00FF))
|
||
()
|
||
)
|
||
|
||
(dni loadl_a "LoadL addr16l"
|
||
(EXT-SKIP-INSN)
|
||
"loadl $addr16l"
|
||
(+ OP4_LITERAL OP4MID_LOADL_L addr16l)
|
||
(set dpl (and addr16l #x00FF))
|
||
()
|
||
)
|
||
|
||
(dni loadh_a "LoadH addr16h"
|
||
(EXT-SKIP-INSN)
|
||
"loadh $addr16h"
|
||
(+ OP4_LITERAL OP4MID_LOADH_L addr16h)
|
||
(set dph (and addr16l #x0FF00))
|
||
()
|
||
)
|
||
|
||
;; THIS NO LONGER EXISTS -> Now LOADL
|
||
;;(dni bank_l "Bank literal"
|
||
;; ()
|
||
;; "bank #$lit8"
|
||
;; (+ OP4_LITERAL OP4MID_BANK_L lit8)
|
||
;; (set bank lit8)
|
||
;; ()
|
||
;;)
|
||
|
||
(dni addcfr_w "Add w/carry fr,W"
|
||
()
|
||
"addc $fr,W"
|
||
(+ OP6_ADDC DIR_NOTTO_W fr)
|
||
(sequence ((QI result) (BI newcbit) (QI isLreg) (HI 16bval))
|
||
(set newcbit (add-cflag w fr cbit))
|
||
(set dcbit (add-dcflag w fr cbit))
|
||
;; If fr is an Lreg, then we have to do 16-bit arithmetic.
|
||
;; We can take advantage of the fact that by a lucky
|
||
;; coincidence, the address of register xxxH is always
|
||
;; one lower than the address of register xxxL.
|
||
(LregCheck isLreg (ifield f-reg))
|
||
(if (eq isLreg #x1)
|
||
(sequence()
|
||
(set 16bval (reg h-spr (sub (ifield f-reg) 1)))
|
||
(set 16bval (sll 16bval 8))
|
||
(set 16bval (or 16bval (and (reg h-spr (ifield f-reg)) #xFF)))
|
||
(set 16bval (addc HI 16bval w cbit))
|
||
(set (reg h-spr (ifield f-reg)) (and 16bval #xFF))
|
||
(set (reg h-spr (sub (ifield f-reg) 1))
|
||
(and (srl 16bval 8) #xFF))
|
||
(set result (reg h-spr (ifield f-reg)))
|
||
)
|
||
(set result (addc w fr cbit)) ;; else part
|
||
)
|
||
|
||
(set zbit (zflag result))
|
||
(set cbit newcbit)
|
||
(set fr result))
|
||
()
|
||
)
|
||
|
||
(dni addcw_fr "Add w/carry W,fr"
|
||
()
|
||
"addc W,$fr"
|
||
(+ OP6_ADDC DIR_TO_W fr)
|
||
(sequence ((QI result) (BI newcbit))
|
||
(set newcbit (add-cflag w fr cbit))
|
||
(set dcbit (add-dcflag w fr cbit))
|
||
(set result (addc w fr cbit))
|
||
(set zbit (zflag result))
|
||
(set cbit newcbit)
|
||
(set w result))
|
||
()
|
||
)
|
||
|
||
|
||
(dni incsnz_fr "Skip if fr++ not zero"
|
||
()
|
||
"incsnz $fr"
|
||
(+ OP6_INCSNZ DIR_NOTTO_W fr)
|
||
(sequence ((QI isLreg) (HI 16bval))
|
||
(LregCheck isLreg (ifield f-reg))
|
||
;; If fr is an Lreg, then we have to do 16-bit arithmetic.
|
||
;; We can take advantage of the fact that by a lucky
|
||
;; coincidence, the address of register xxxH is always
|
||
;; one lower than the address of register xxxL.
|
||
(if (eq isLreg #x1)
|
||
(sequence()
|
||
; Create the 16 bit value
|
||
(set 16bval (reg h-spr (sub (ifield f-reg) 1)))
|
||
(set 16bval (sll 16bval 8))
|
||
(set 16bval (or 16bval (and (reg h-spr (ifield f-reg)) #xFF)))
|
||
; Do 16 bit arithmetic.
|
||
(set 16bval (add HI 16bval 1))
|
||
; Separate the 16 bit values into the H and L regs
|
||
(set (reg h-spr (ifield f-reg)) (and 16bval #xFF))
|
||
(set (reg h-spr (sub (ifield f-reg) 1))
|
||
(and (srl 16bval 8) #xFF))
|
||
(set fr (reg h-spr (ifield f-reg)))
|
||
)
|
||
(set fr (add fr 1)) ; Do 8 bit arithmetic.
|
||
)
|
||
(if (not (zflag fr))
|
||
(skip 1)))
|
||
()
|
||
)
|
||
|
||
(dni incsnzw_fr "Skip if W=fr+1 not zero"
|
||
()
|
||
"incsnz W,$fr"
|
||
(+ OP6_INCSNZ DIR_TO_W fr)
|
||
(sequence ()
|
||
(set w (add fr 1))
|
||
(if (not (zflag w))
|
||
(skip 1)))
|
||
()
|
||
)
|
||
|
||
(dni mulsw_fr "Multiply W,fr (signed)"
|
||
()
|
||
"muls W,$fr"
|
||
(+ OP6_MULS DIR_TO_W fr)
|
||
(sequence ((SI tmp))
|
||
(set tmp (mul (ext SI w) (ext SI fr)))
|
||
(set w (and tmp #xFF))
|
||
(set mulh (srl tmp 8)))
|
||
()
|
||
)
|
||
|
||
(dni muluw_fr "Multiply W,fr (unsigned)"
|
||
()
|
||
"mulu W,$fr"
|
||
(+ OP6_MULU DIR_TO_W fr)
|
||
(sequence ((USI tmp))
|
||
(set tmp (and #xFFFF (mul (zext USI w) (zext USI fr))))
|
||
(set w (and tmp #xFF))
|
||
(set mulh (srl tmp 8)))
|
||
()
|
||
)
|
||
|
||
(dni decsnz_fr "Skip if fr-- not zero"
|
||
()
|
||
"decsnz $fr"
|
||
(+ OP6_DECSNZ DIR_NOTTO_W fr)
|
||
(sequence ((QI isLreg) (HI 16bval))
|
||
(LregCheck isLreg (ifield f-reg))
|
||
;; If fr is an Lreg, then we have to do 16-bit arithmetic.
|
||
;; We can take advantage of the fact that by a lucky
|
||
;; coincidence, the address of register xxxH is always
|
||
;; one lower than the address of register xxxL.
|
||
(if (eq isLreg #x1)
|
||
(sequence()
|
||
; Create the 16 bit value
|
||
(set 16bval (reg h-spr (sub (ifield f-reg) 1)))
|
||
(set 16bval (sll 16bval 8))
|
||
(set 16bval (or 16bval (and (reg h-spr (ifield f-reg)) #xFF)))
|
||
; New 16 bit instruction
|
||
(set 16bval (sub HI 16bval 1))
|
||
; Separate the 16 bit values into the H and L regs
|
||
(set (reg h-spr (ifield f-reg)) (and 16bval #xFF))
|
||
(set (reg h-spr (sub (ifield f-reg) 1))
|
||
(and (srl 16bval 8) #xFF))
|
||
(set fr (reg h-spr (ifield f-reg)))
|
||
)
|
||
; Original instruction
|
||
(set fr (sub fr 1))
|
||
)
|
||
(if (not (zflag fr))
|
||
(skip 1)))
|
||
()
|
||
)
|
||
|
||
(dni decsnzw_fr "Skip if W=fr-1 not zero"
|
||
()
|
||
"decsnz W,$fr"
|
||
(+ OP6_DECSNZ DIR_TO_W fr)
|
||
(sequence ()
|
||
(set w (sub fr 1))
|
||
(if (not (zflag w))
|
||
(skip 1)))
|
||
()
|
||
)
|
||
|
||
(dni subcw_fr "Subract w/carry W,fr"
|
||
()
|
||
"subc W,$fr"
|
||
(+ OP6_SUBC DIR_TO_W fr)
|
||
(sequence ((QI result) (BI newcbit))
|
||
(set newcbit (not (sub-cflag fr w (not cbit))))
|
||
(set dcbit (not (sub-dcflag fr w (not cbit))))
|
||
(set result (subc fr w (not cbit)))
|
||
(set zbit (zflag result))
|
||
(set cbit newcbit)
|
||
(set w result))
|
||
()
|
||
)
|
||
|
||
(dni subcfr_w "Subtract w/carry fr,W"
|
||
()
|
||
"subc $fr,W"
|
||
(+ OP6_SUBC DIR_NOTTO_W fr)
|
||
(sequence ((QI result) (BI newcbit) (QI isLreg) (HI 16bval))
|
||
(set newcbit (not (sub-cflag fr w (not cbit))))
|
||
(set dcbit (not (sub-dcflag fr w (not cbit))))
|
||
(LregCheck isLreg (ifield f-reg))
|
||
;; If fr is an Lreg, then we have to do 16-bit arithmetic.
|
||
;; We can take advantage of the fact that by a lucky
|
||
;; coincidence, the address of register xxxH is always
|
||
;; one lower than the address of register xxxL.
|
||
(if (eq isLreg #x1)
|
||
(sequence()
|
||
; Create the 16 bit value
|
||
(set 16bval (reg h-spr (sub (ifield f-reg) 1)))
|
||
(set 16bval (sll 16bval 8))
|
||
(set 16bval (or 16bval (and (reg h-spr (ifield f-reg)) #xFF)))
|
||
; New 16 bit instruction
|
||
(set 16bval (subc HI 16bval w (not cbit)))
|
||
; Separate the 16 bit values into the H and L regs
|
||
(set (reg h-spr (ifield f-reg)) (and 16bval #xFF))
|
||
(set (reg h-spr (sub (ifield f-reg) 1))
|
||
(and (srl 16bval 8) #xFF))
|
||
(set result (reg h-spr (ifield f-reg)))
|
||
)
|
||
; Original instruction
|
||
(set result (subc fr w (not cbit)))
|
||
)
|
||
|
||
|
||
(set zbit (zflag result))
|
||
(set cbit newcbit)
|
||
(set fr result))
|
||
()
|
||
)
|
||
|
||
|
||
(dni pop_fr "Pop fr"
|
||
()
|
||
"pop $fr"
|
||
(+ OP6_POP (f-dir 1) fr)
|
||
(sequence()
|
||
(set fr (c-call QI "pop"))
|
||
(c-call VOID "adjuststackptr" (const 1))
|
||
)
|
||
()
|
||
)
|
||
|
||
(dni push_fr "Push fr"
|
||
()
|
||
"push $fr"
|
||
(+ OP6_POP (f-dir 0) fr)
|
||
(sequence()
|
||
(c-call "push" fr)
|
||
(c-call VOID "adjuststackptr" (const -1))
|
||
)
|
||
()
|
||
)
|
||
|
||
(dni csew_fr "Skip if equal W,fr"
|
||
()
|
||
"cse W,$fr"
|
||
(+ OP6_CSE (f-dir 1) fr)
|
||
(if (eq w fr)
|
||
(skip 1))
|
||
()
|
||
)
|
||
|
||
(dni csnew_fr "Skip if not-equal W,fr"
|
||
()
|
||
"csne W,$fr"
|
||
(+ OP6_CSE (f-dir 0) fr)
|
||
(if (not (eq w fr))
|
||
(skip 1))
|
||
()
|
||
)
|
||
|
||
;;(dni csaw_fr "Skip if W above fr"
|
||
;; ((MACH ip2022ext))
|
||
;; "csa W,$fr"
|
||
;; (+ OP6_CSAB (f-dir 1) fr)
|
||
;; (if (gt w fr)
|
||
;; (skip 1))
|
||
;; ()
|
||
;;)
|
||
|
||
;;(dni csbw_fr "Skip if W below fr"
|
||
;; ((MACH ip2022ext))
|
||
;; "csb W,$fr"
|
||
;; (+ OP6_CSAB (f-dir 0) fr)
|
||
;; (if (lt w fr)
|
||
;; (skip 1))
|
||
;; ()
|
||
;;)
|
||
|
||
(dni incsz_fr "Skip if fr++ zero"
|
||
()
|
||
"incsz $fr"
|
||
(+ OP6_INCSZ DIR_NOTTO_W fr)
|
||
(sequence ((QI isLreg) (HI 16bval))
|
||
(LregCheck isLreg (ifield f-reg))
|
||
;; If fr is an Lreg, then we have to do 16-bit arithmetic.
|
||
;; We can take advantage of the fact that by a lucky
|
||
;; coincidence, the address of register xxxH is always
|
||
;; one lower than the address of register xxxL.
|
||
(if (eq isLreg #x1)
|
||
(sequence()
|
||
; Create the 16 bit value
|
||
(set 16bval (reg h-spr (sub (ifield f-reg) 1)))
|
||
(set 16bval (sll 16bval 8))
|
||
(set 16bval (or 16bval (and (reg h-spr (ifield f-reg)) #xFF)))
|
||
; New 16 bit instruction
|
||
(set 16bval (add HI 16bval 1))
|
||
; Separate the 16 bit values into the H and L regs
|
||
(set (reg h-spr (ifield f-reg)) (and 16bval #xFF))
|
||
(set (reg h-spr (sub (ifield f-reg) 1))
|
||
(and (srl 16bval 8) #xFF))
|
||
(set fr (reg h-spr (ifield f-reg)))
|
||
)
|
||
; Original instruction
|
||
(set fr (add fr 1))
|
||
)
|
||
(if (zflag fr)
|
||
(skip 1)))
|
||
()
|
||
)
|
||
|
||
(dni incszw_fr "Skip if W=fr+1 zero"
|
||
()
|
||
"incsz W,$fr"
|
||
(+ OP6_INCSZ DIR_TO_W fr)
|
||
(sequence ()
|
||
(set w (add fr 1))
|
||
(if (zflag w)
|
||
(skip 1)))
|
||
()
|
||
)
|
||
|
||
(dni swap_fr "Swap fr nibbles"
|
||
()
|
||
"swap $fr"
|
||
(+ OP6_SWAP DIR_NOTTO_W fr)
|
||
(set fr (or (and (sll fr 4) #xf0)
|
||
(and (srl fr 4) #x0f)))
|
||
()
|
||
)
|
||
|
||
(dni swapw_fr "Swap fr nibbles into W"
|
||
()
|
||
"swap W,$fr"
|
||
(+ OP6_SWAP DIR_TO_W fr)
|
||
(set w (or (and (sll fr 4) #xf0)
|
||
(and (srl fr 4) #x0f)))
|
||
()
|
||
)
|
||
|
||
(dni rl_fr "Rotate fr left with carry"
|
||
()
|
||
"rl $fr"
|
||
(+ OP6_RL DIR_NOTTO_W fr)
|
||
(sequence ((QI newfr) (BI newc))
|
||
(set newc (and fr #x80))
|
||
(set newfr (or (sll fr 1) (if QI cbit 1 0)))
|
||
(set cbit (if QI newc 1 0))
|
||
(set fr newfr))
|
||
()
|
||
)
|
||
|
||
(dni rlw_fr "Rotate fr left with carry into W"
|
||
()
|
||
"rl W,$fr"
|
||
(+ OP6_RL DIR_TO_W fr)
|
||
(sequence ((QI newfr) (BI newc))
|
||
(set newc (and fr #x80))
|
||
(set newfr (or (sll fr 1) (if QI cbit 1 0)))
|
||
(set cbit (if QI newc 1 0))
|
||
(set w newfr))
|
||
()
|
||
)
|
||
|
||
(dni rr_fr "Rotate fr right with carry"
|
||
()
|
||
"rr $fr"
|
||
(+ OP6_RR DIR_NOTTO_W fr)
|
||
(sequence ((QI newfr) (BI newc))
|
||
(set newc (and fr #x01))
|
||
(set newfr (or (srl fr 1) (if QI cbit #x80 #x00)))
|
||
(set cbit (if QI newc 1 0))
|
||
(set fr newfr))
|
||
()
|
||
)
|
||
|
||
(dni rrw_fr "Rotate fr right with carry into W"
|
||
()
|
||
"rr W,$fr"
|
||
(+ OP6_RR DIR_TO_W fr)
|
||
(sequence ((QI newfr) (BI newc))
|
||
(set newc (and fr #x01))
|
||
(set newfr (or (srl fr 1) (if QI cbit #x80 #x00)))
|
||
(set cbit (if QI newc 1 0))
|
||
(set w newfr))
|
||
()
|
||
)
|
||
|
||
(dni decsz_fr "Skip if fr-- zero"
|
||
()
|
||
"decsz $fr"
|
||
(+ OP6_DECSZ DIR_NOTTO_W fr)
|
||
(sequence ((QI isLreg) (HI 16bval))
|
||
(LregCheck isLreg (ifield f-reg))
|
||
;; If fr is an Lreg, then we have to do 16-bit arithmetic.
|
||
;; We can take advantage of the fact that by a lucky
|
||
;; coincidence, the address of register xxxH is always
|
||
;; one lower than the address of register xxxL.
|
||
(if (eq isLreg #x1)
|
||
(sequence()
|
||
; Create the 16 bit value
|
||
(set 16bval (reg h-spr (sub (ifield f-reg) 1)))
|
||
(set 16bval (sll 16bval 8))
|
||
(set 16bval (or 16bval (and (reg h-spr (ifield f-reg)) #xFF)))
|
||
; New 16 bit instruction
|
||
(set 16bval (sub HI 16bval 1))
|
||
; Separate the 16 bit values into the H and L regs
|
||
(set (reg h-spr (ifield f-reg)) (and 16bval #xFF))
|
||
(set (reg h-spr (sub (ifield f-reg) 1))
|
||
(and (srl 16bval 8) #xFF))
|
||
(set fr (reg h-spr (ifield f-reg)))
|
||
)
|
||
; Original instruction
|
||
(set fr (sub fr 1))
|
||
)
|
||
(if (zflag fr)
|
||
(skip 1)))
|
||
()
|
||
)
|
||
|
||
(dni decszw_fr "Skip if W=fr-1 zero"
|
||
()
|
||
"decsz W,$fr"
|
||
(+ OP6_DECSZ DIR_TO_W fr)
|
||
(sequence ()
|
||
(set w (sub fr 1))
|
||
(if (zflag w)
|
||
(skip 1)))
|
||
()
|
||
)
|
||
|
||
(dni inc_fr "Increment fr"
|
||
()
|
||
"inc $fr"
|
||
(+ OP6_INC DIR_NOTTO_W fr)
|
||
(sequence ((QI isLreg) (HI 16bval))
|
||
(LregCheck isLreg (ifield f-reg))
|
||
;; If fr is an Lreg, then we have to do 16-bit arithmetic.
|
||
;; We can take advantage of the fact that by a lucky
|
||
;; coincidence, the address of register xxxH is always
|
||
;; one lower than the address of register xxxL.
|
||
(if (eq isLreg #x1)
|
||
(sequence()
|
||
; Create the 16 bit value
|
||
(set 16bval (reg h-spr (sub (ifield f-reg) 1)))
|
||
(set 16bval (sll 16bval 8))
|
||
(set 16bval (or 16bval (and (reg h-spr (ifield f-reg)) #xFF)))
|
||
; New 16 bit instruction
|
||
(set 16bval (add HI 16bval 1))
|
||
; Separate the 16 bit values into the H and L regs
|
||
(set (reg h-spr (ifield f-reg)) (and 16bval #xFF))
|
||
(set (reg h-spr (sub (ifield f-reg) 1))
|
||
(and (srl 16bval 8) #xFF))
|
||
(set fr (reg h-spr (ifield f-reg)))
|
||
)
|
||
; Original instruction
|
||
(set fr (add fr 1))
|
||
)
|
||
(set zbit (zflag fr)))
|
||
()
|
||
)
|
||
|
||
(dni incw_fr "Increment fr into w"
|
||
()
|
||
"inc W,$fr"
|
||
(+ OP6_INC DIR_TO_W fr)
|
||
(sequence ()
|
||
(set w (add fr 1))
|
||
(set zbit (zflag w)))
|
||
()
|
||
)
|
||
|
||
(dni not_fr "Invert fr"
|
||
()
|
||
"not $fr"
|
||
(+ OP6_NOT DIR_NOTTO_W fr)
|
||
(sequence ()
|
||
(set fr (inv fr))
|
||
(set zbit (zflag fr)))
|
||
()
|
||
)
|
||
|
||
(dni notw_fr "Invert fr into w"
|
||
()
|
||
"not W,$fr"
|
||
(+ OP6_NOT DIR_TO_W fr)
|
||
(sequence ()
|
||
(set w (inv fr))
|
||
(set zbit (zflag w)))
|
||
()
|
||
)
|
||
|
||
(dni test_fr "Test fr"
|
||
()
|
||
"test $fr"
|
||
(+ OP6_TEST DIR_NOTTO_W fr)
|
||
(sequence ()
|
||
(set zbit (zflag fr)))
|
||
()
|
||
)
|
||
|
||
(dni movw_l "MOV W,literal"
|
||
()
|
||
"mov W,#$lit8"
|
||
(+ OP4_LITERAL OP4MID_MOV_L lit8)
|
||
(set w lit8)
|
||
()
|
||
)
|
||
|
||
(dni movfr_w "Move/test w into fr"
|
||
()
|
||
"mov $fr,W"
|
||
(+ OP6_OTHER1 DIR_NOTTO_W fr)
|
||
(set fr w)
|
||
()
|
||
)
|
||
|
||
(dni movw_fr "Move/test fr into w"
|
||
()
|
||
"mov W,$fr"
|
||
(+ OP6_TEST DIR_TO_W fr)
|
||
(sequence ()
|
||
(set w fr)
|
||
(set zbit (zflag w)))
|
||
()
|
||
)
|
||
|
||
|
||
(dni addfr_w "Add fr,W"
|
||
()
|
||
"add $fr,W"
|
||
(+ OP6_ADD DIR_NOTTO_W fr)
|
||
(sequence ((QI result) (QI isLreg) (HI 16bval))
|
||
(set cbit (add-cflag w fr 0))
|
||
(set dcbit (add-dcflag w fr 0))
|
||
(LregCheck isLreg (ifield f-reg))
|
||
|
||
;; If fr is an Lreg, then we have to do 16-bit arithmetic.
|
||
;; We can take advantage of the fact that by a lucky
|
||
;; coincidence, the address of register xxxH is always
|
||
;; one lower than the address of register xxxL.
|
||
(if (eq isLreg #x1)
|
||
(sequence()
|
||
(set 16bval (reg h-spr (sub (ifield f-reg) 1)))
|
||
(set 16bval (sll 16bval 8))
|
||
(set 16bval (or 16bval (and (reg h-spr (ifield f-reg)) #xFF)))
|
||
(set 16bval (add HI (and w #xFF) 16bval))
|
||
(set (reg h-spr (ifield f-reg)) (and 16bval #xFF))
|
||
(set (reg h-spr (sub (ifield f-reg) 1))
|
||
(and (srl 16bval 8) #xFF))
|
||
(set result (reg h-spr (ifield f-reg)))
|
||
)
|
||
(set result (addc w fr 0)) ;; else part
|
||
)
|
||
(set zbit (zflag result))
|
||
(set fr result))
|
||
()
|
||
)
|
||
|
||
(dni addw_fr "Add W,fr"
|
||
()
|
||
"add W,$fr"
|
||
(+ OP6_ADD DIR_TO_W fr)
|
||
(sequence ((QI result))
|
||
(set cbit (add-cflag w fr 0))
|
||
(set dcbit (add-dcflag w fr 0))
|
||
(set result (addc w fr 0))
|
||
(set zbit (zflag result))
|
||
(set w result))
|
||
()
|
||
)
|
||
|
||
(dni xorfr_w "XOR fr,W"
|
||
()
|
||
"xor $fr,W"
|
||
(+ OP6_XOR DIR_NOTTO_W fr)
|
||
(sequence ()
|
||
(set fr (xor w fr))
|
||
(set zbit (zflag fr)))
|
||
()
|
||
)
|
||
|
||
(dni xorw_fr "XOR W,fr"
|
||
()
|
||
"xor W,$fr"
|
||
(+ OP6_XOR DIR_TO_W fr)
|
||
(sequence ()
|
||
(set w (xor fr w))
|
||
(set zbit (zflag w)))
|
||
()
|
||
)
|
||
|
||
(dni andfr_w "AND fr,W"
|
||
()
|
||
"and $fr,W"
|
||
(+ OP6_AND DIR_NOTTO_W fr)
|
||
(sequence ()
|
||
(set fr (and w fr))
|
||
(set zbit (zflag fr)))
|
||
()
|
||
)
|
||
|
||
(dni andw_fr "AND W,fr"
|
||
()
|
||
"and W,$fr"
|
||
(+ OP6_AND DIR_TO_W fr)
|
||
(sequence ()
|
||
(set w (and fr w))
|
||
(set zbit (zflag w)))
|
||
()
|
||
)
|
||
|
||
(dni orfr_w "OR fr,W"
|
||
()
|
||
"or $fr,W"
|
||
(+ OP6_OR DIR_NOTTO_W fr)
|
||
(sequence ()
|
||
(set fr (or w fr))
|
||
(set zbit (zflag fr)))
|
||
()
|
||
)
|
||
|
||
(dni orw_fr "OR W,fr"
|
||
()
|
||
"or W,$fr"
|
||
(+ OP6_OR DIR_TO_W fr)
|
||
(sequence ()
|
||
(set w (or fr w))
|
||
(set zbit (zflag w)))
|
||
()
|
||
)
|
||
|
||
(dni dec_fr "Decrement fr"
|
||
()
|
||
"dec $fr"
|
||
(+ OP6_DEC DIR_NOTTO_W fr)
|
||
(sequence ((QI isLreg) (HI 16bval))
|
||
(LregCheck isLreg (ifield f-reg))
|
||
;; If fr is an Lreg, then we have to do 16-bit arithmetic.
|
||
;; We can take advantage of the fact that by a lucky
|
||
;; coincidence, the address of register xxxH is always
|
||
;; one lower than the address of register xxxL.
|
||
(if (eq isLreg #x1)
|
||
(sequence()
|
||
; Create the 16 bit value
|
||
(set 16bval (reg h-spr (sub (ifield f-reg) 1)))
|
||
(set 16bval (sll 16bval 8))
|
||
(set 16bval (or 16bval (and (reg h-spr (ifield f-reg)) #xFF)))
|
||
; New 16 bit instruction
|
||
(set 16bval (sub HI 16bval 1))
|
||
; Separate the 16 bit values into the H and L regs
|
||
(set (reg h-spr (ifield f-reg)) (and 16bval #xFF))
|
||
(set (reg h-spr (sub (ifield f-reg) 1))
|
||
(and (srl 16bval 8) #xFF))
|
||
(set fr (reg h-spr (ifield f-reg)))
|
||
)
|
||
; Original instruction
|
||
(set fr (sub fr 1))
|
||
)
|
||
(set zbit (zflag fr)))
|
||
()
|
||
)
|
||
|
||
(dni decw_fr "Decrement fr into w"
|
||
()
|
||
"dec W,$fr"
|
||
(+ OP6_DEC DIR_TO_W fr)
|
||
(sequence ()
|
||
(set w (sub fr 1))
|
||
(set zbit (zflag w)))
|
||
()
|
||
)
|
||
|
||
(dni subfr_w "Sub fr,W"
|
||
()
|
||
"sub $fr,W"
|
||
(+ OP6_SUB DIR_NOTTO_W fr)
|
||
(sequence ((QI result) (QI isLreg) (HI 16bval))
|
||
(set cbit (not (sub-cflag fr w 0)))
|
||
(set dcbit (not (sub-dcflag fr w 0)))
|
||
(LregCheck isLreg (ifield f-reg))
|
||
;; If fr is an Lreg, then we have to do 16-bit arithmetic.
|
||
;; We can take advantage of the fact that by a lucky
|
||
;; coincidence, the address of register xxxH is always
|
||
;; one lower than the address of register xxxL.
|
||
(if (eq isLreg #x1)
|
||
(sequence()
|
||
; Create the 16 bit value
|
||
(set 16bval (reg h-spr (sub (ifield f-reg) 1)))
|
||
(set 16bval (sll 16bval 8))
|
||
(set 16bval (or 16bval (and (reg h-spr (ifield f-reg)) #xFF)))
|
||
; New 16 bit instruction
|
||
(set 16bval (sub HI 16bval (and w #xFF)))
|
||
; Separate the 16 bit values into the H and L regs
|
||
(set (reg h-spr (ifield f-reg)) (and 16bval #xFF))
|
||
(set (reg h-spr (sub (ifield f-reg) 1))
|
||
(and (srl 16bval 8) #xFF))
|
||
(set result (reg h-spr (ifield f-reg)))
|
||
)
|
||
; Original instruction
|
||
(set result (subc fr w 0))
|
||
)
|
||
(set zbit (zflag result))
|
||
(set fr result))
|
||
()
|
||
)
|
||
|
||
(dni subw_fr "Sub W,fr"
|
||
()
|
||
"sub W,$fr"
|
||
(+ OP6_SUB DIR_TO_W fr)
|
||
(sequence ((QI result))
|
||
(set cbit (not (sub-cflag fr w 0)))
|
||
(set dcbit (not (sub-dcflag fr w 0)))
|
||
(set result (subc fr w 0))
|
||
(set zbit (zflag result))
|
||
(set w result))
|
||
()
|
||
)
|
||
|
||
(dni clr_fr "Clear fr"
|
||
()
|
||
"clr $fr"
|
||
(+ OP6_OTHER2 (f-dir 1) fr)
|
||
(sequence ()
|
||
(set fr 0)
|
||
(set zbit (zflag fr)))
|
||
()
|
||
)
|
||
|
||
(dni cmpw_fr "CMP W,fr"
|
||
()
|
||
"cmp W,$fr"
|
||
(+ OP6_OTHER2 (f-dir 0) fr)
|
||
(sequence ()
|
||
(set cbit (not (sub-cflag fr w 0)))
|
||
(set dcbit (not (sub-dcflag fr w 0)))
|
||
(set zbit (zflag (sub w fr))))
|
||
()
|
||
)
|
||
|
||
(dni speed "Set speed"
|
||
()
|
||
"speed #$lit8"
|
||
(+ (f-op8 1) lit8)
|
||
(set (reg h-registers #x0E) lit8)
|
||
()
|
||
)
|
||
|
||
(dni ireadi "Insn memory read with increment"
|
||
()
|
||
"ireadi"
|
||
(+ OP6_OTHER1 (f-op6-10low #x1D))
|
||
(c-call "do_insn_read")
|
||
()
|
||
)
|
||
|
||
(dni iwritei "Insn memory write with increment"
|
||
()
|
||
"iwritei"
|
||
(+ OP6_OTHER1 (f-op6-10low #x1C))
|
||
(c-call "do_insn_write")
|
||
()
|
||
)
|
||
|
||
(dni fread "Flash read"
|
||
()
|
||
"fread"
|
||
(+ OP6_OTHER1 (f-op6-10low #x1B))
|
||
(c-call "do_flash_read")
|
||
()
|
||
)
|
||
|
||
(dni fwrite "Flash write"
|
||
()
|
||
"fwrite"
|
||
(+ OP6_OTHER1 (f-op6-10low #x1A))
|
||
(c-call "do_flash_write")
|
||
()
|
||
)
|
||
|
||
(dni iread "Insn memory read"
|
||
()
|
||
"iread"
|
||
(+ OP6_OTHER1 (f-op6-10low #x19))
|
||
(c-call "do_insn_read")
|
||
()
|
||
)
|
||
|
||
(dni iwrite "Insn memory write"
|
||
()
|
||
"iwrite"
|
||
(+ OP6_OTHER1 (f-op6-10low #x18))
|
||
(c-call "do_insn_write")
|
||
()
|
||
)
|
||
|
||
(dni page "Set insn page"
|
||
(EXT-SKIP-INSN)
|
||
;"page $page3"
|
||
"page $addr16p"
|
||
;(+ OP6_OTHER1 (f-op6-7low #x2) page3)
|
||
;(set pabits (srl page3 13))
|
||
(+ OP6_OTHER1 (f-op6-7low #x2) addr16p)
|
||
(set pabits addr16p)
|
||
()
|
||
)
|
||
|
||
(dni system "System call"
|
||
()
|
||
"system"
|
||
(+ OP6_OTHER1 (f-op6-10low #xff))
|
||
(c-call "do_system")
|
||
()
|
||
)
|
||
|
||
(dni reti "Return from interrupt"
|
||
()
|
||
"reti #$reti3"
|
||
(+ OP6_OTHER1 (f-op6-7low #x1) reti3)
|
||
(c-call "do_reti" reti3)
|
||
()
|
||
)
|
||
|
||
(dni ret "Return"
|
||
()
|
||
"ret"
|
||
(+ OP6_OTHER1 (f-op6-10low #x07))
|
||
(sequence ((USI new_pc))
|
||
(set new_pc (c-call UHI "pop_pc_stack"))
|
||
(set pabits (srl new_pc 13))
|
||
(set pc new_pc))
|
||
()
|
||
)
|
||
|
||
(dni int "Software interrupt"
|
||
()
|
||
"int"
|
||
(+ OP6_OTHER1 (f-op6-10low #x6))
|
||
(nop)
|
||
()
|
||
)
|
||
|
||
(dni breakx "Breakpoint with extended skip"
|
||
(EXT-SKIP-INSN)
|
||
"breakx"
|
||
(+ OP6_OTHER1 (f-op6-10low #x5))
|
||
(c-call "do_break" pc)
|
||
()
|
||
)
|
||
|
||
(dni cwdt "Clear watchdog timer"
|
||
()
|
||
"cwdt"
|
||
(+ OP6_OTHER1 (f-op6-10low #x4))
|
||
(c-call "do_clear_wdt")
|
||
()
|
||
)
|
||
|
||
(dni ferase "Flash erase"
|
||
()
|
||
"ferase"
|
||
(+ OP6_OTHER1 (f-op6-10low #x3))
|
||
(c-call "do_flash_erase")
|
||
()
|
||
)
|
||
|
||
(dni retnp "Return, no page"
|
||
()
|
||
"retnp"
|
||
(+ OP6_OTHER1 (f-op6-10low #x2))
|
||
(sequence ((USI new_pc))
|
||
(set new_pc (c-call UHI "pop_pc_stack"))
|
||
(set pc new_pc))
|
||
()
|
||
)
|
||
|
||
(dni break "Breakpoint"
|
||
()
|
||
"break"
|
||
(+ OP6_OTHER1 (f-op6-10low #x1))
|
||
(c-call "do_break" pc)
|
||
()
|
||
)
|
||
|
||
(dni nop "No operation"
|
||
()
|
||
"nop"
|
||
(+ OP6_OTHER1 (f-op6-10low #x0))
|
||
(nop)
|
||
()
|
||
)
|
||
|
||
|
||
; Macro instructions
|
||
(dnmi sc "Skip on carry"
|
||
()
|
||
"sc"
|
||
(emit sb (bitno 0) (fr #xB)) ; sb status.0
|
||
)
|
||
|
||
(dnmi snc "Skip on no carry"
|
||
()
|
||
"snc"
|
||
(emit snb (bitno 0) (fr #xB)) ; snb status.0
|
||
)
|
||
|
||
(dnmi sz "Skip on zero"
|
||
()
|
||
"sz"
|
||
(emit sb (bitno 2) (fr #xB)) ; sb status.2
|
||
)
|
||
|
||
(dnmi snz "Skip on no zero"
|
||
()
|
||
"snz"
|
||
(emit snb (bitno 2) (fr #xB)) ; snb status.2
|
||
)
|
||
|
||
(dnmi skip "Skip always"
|
||
(SKIPA)
|
||
"skip"
|
||
(emit snb (bitno 0) (fr 9)) ; snb pcl.0 | (pcl&1)<<12
|
||
)
|
||
|
||
(dnmi skipb "Skip always"
|
||
(SKIPA)
|
||
"skip"
|
||
(emit sb (bitno 0) (fr 9)) ; sb pcl.0 | (pcl&1)<<12
|
||
)
|
||
|