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Updated, Tested, and Debugged module intlib
This commit is contained in:
Curtis F Kaylor
parent
3958d4b7c8
commit
f1cbe3a02b
@ -3,13 +3,15 @@
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; external zero page locations SRCLO and SRCHI
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; and external locations RANDOM, RDSEED, TEMP0, TEMP1, and TEMP2.
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SUBROUTINE INTLIB
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;iabs(n) - Get Integer ABSolute Value
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;Args: Y,X = Integer to get Absolute Value Of
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;Sets: TEMP1, TEMP2
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;Affects: C, N, Z
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;Returns: A = Absolute Value of Argument
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IABS: CPY #$80 ;If Negative (High Bit Set)
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BCC IABSX ; Carry will Already be Set
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BCC .RETURN ; Carry will Already be Set
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JSR SAVRXY ; Copy LSB, MSB to TEMP1. TEMP2
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LDA #0 ; Subtract LSB
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SBC TEMP1 ; from 0
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@ -17,7 +19,7 @@ IABS: CPY #$80 ;If Negative (High Bit Set)
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LDA #0 ; Subtract MSB
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SBC TEMP2 ; from 0
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TAY ; and Copy to Y Register
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IABSX: RTS
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.RETURN RTS
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;imax(i) - Get MAXimum of Two Integers
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;Args: Y,X = Second Integer
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@ -25,10 +27,10 @@ IABSX: RTS
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;Affects: N,Z,C
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;Returns: Y,X = Larger of the Two Arguments
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IMAX: CPY SRCHI ;If Y < SRCHI
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BCC IMAXC ; Return SRCLO, SRCHI
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BCC .GETSRC ; Return SRCLO, SRCHI
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CPX SRCLO ;IF X >= SRCLO
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BCS IMINX ; Return Argument
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IMAXC: JMP GETSRC ;Return Integer in SRCLO, SRCHI
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BCS .RETURN ; Return Argument
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.GETSRC JMP GETSRC ;Return Integer in SRCLO, SRCHI
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;imin(i) - Get MINimum of Two Integers
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;Args: Y,X = Second Integer
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@ -36,11 +38,11 @@ IMAXC: JMP GETSRC ;Return Integer in SRCLO, SRCHI
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;Affects: N,Z,C
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;Returns: Y,X = Larger of the Two Arguments
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IMIN: CPY SRCHI ;If Y < SRCHI
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BCC IMINX ; Return Argument
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BNE IMAXC ;If Y > SRCHI Return SRCHI,SRCLO
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BCC .RETURN ; Return Argument
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BNE .GETSRC ;If Y > SRCHI Return SRCHI,SRCLO
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CPX SRCLO ;If X >= SRCLO
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BCS IMAXC ; Return SRCHI,SRCLO
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IMINX: RTS ;Return Argument
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BCS .GETSRC ; Return SRCHI,SRCLO
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RTS ;Return Argument
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;iaddc(c,i) - Add Byte c to Integer i
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IADDC: JSR SETSRC ;Save Integer and Clear Y
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@ -51,8 +53,8 @@ IADDC: JSR SETSRC ;Save Integer and Clear Y
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;Requires: setsrc(g) - Augend
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;Sets: TEMP1,TEMP2 = Addend
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;Affects: Z,C
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;Returns: A = Sum (Bits 16-23)
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; Y,X = Sum (Bits 0-15)
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;Returns: A = Carry
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; Y,X = Sum
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; N = Sign of Result
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IADD: CLC ;Clear Carry for Addition
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TXA ;Add Addend LSB
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@ -70,8 +72,8 @@ IADD: CLC ;Clear Carry for Addition
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;Requires: setsrc(m) - Minuend
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;Sets: TEMP1,TEMP2 = Subtrahend
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;Affects: Z,C
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;Returns: A = Differencee (Bits 16-23)
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; Y,X = Difference (Bits 0-15)
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;Returns: A = Carry
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; Y,X = Difference
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; N = Sign of Result
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ISUB: JSR SAVRXY ;Store Subtrahend in TEMP1,TEMP2
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SEC ;Set Carry for Subtraction
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@ -87,88 +89,111 @@ ISUB: JSR SAVRXY ;Store Subtrahend in TEMP1,TEMP2
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;imult(m) - MULTiply Two Integers
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;Args: Y,X - Multiplier
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;Requires: DSTHI,DSTLO = Multiplicand
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;Requires: DSTPTR = Multiplicand
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;Sets: TEMP0-TEMP3 = 32 Bit Product
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;Destroys: SRCHI, SRCLO
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;Destroys: SRCPTR
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;Affects: A,C,Z,N
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;Returns: Y,X = 16 Bit Product
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;Returns: A,Y,X = 24 Bit Product
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IMULT: JSR SETSRC ;Save Multiplier
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STY TEMP2 ;Clear Upper Bits of Product
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STY TEMP3
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STY TEMP0+2 ;Clear Upper Bits of Product
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STY TEMP0+3
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LDX #16 ;Rotate Through 16 Bits
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IMULTS: LSR SRCHI ;Divide Multiplier by 2
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ROR SRCLO
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BCC IMULTR ;If Shifted out Bit is 1
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LDA TEMP2 ; Add Multiplicand
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.MSHFTR LSR SRCPTR+1 ;Divide Multiplier by 2
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ROR SRCPTR
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BCC .MROTR ;If Shifted out Bit is 1
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LDA TEMP0+2 ; Add Multiplicand
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CLC ; to Upper Half of Product
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ADC DSTLO
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STA TEMP2
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LDA TEMP3
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ADC DSTHI
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IMULTR: ROR ;Rotate Partial Product
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STA TEMP3
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ROR TEMP2
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ROR TEMP1
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ADC DSTPTR
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STA TEMP0+2
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LDA TEMP0+3
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ADC DSTPTR+1
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STA TEMP0+3
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.MROTR ROR TEMP0+3
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ROR TEMP0+2
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ROR TEMP0+1
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ROR TEMP0
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DEX ;Decrement Counter
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BNE IMULTS ;and Process Next Bit
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BNE .MSHFTR ;and Process Next Bit
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LDX TEMP0
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LDY TEMP1 ;Return Low 16 Bits of Product
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LDY TEMP1 ;Return Low 24 Bits of
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LDA TEMP2 ;Product in A, Y, and X
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RTS
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;idiv(d) - DIVide Two Numbers
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;idiv(d) - Integer DIVide
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;Args: Y,X - Divisor
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;Requires: DSTHI,DSTLO = Dividend
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;Sets: SRCHI,SRCLO = Divisor
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; DSTHI,DSTLO = Quotient
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;Requires: DSTPTR = Dividend
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;Sets: SRCPTR = Divisor
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; DSTPTR = Quotient
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; TEMP1,TEMP2 = Remainder
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;Affects: A,C,Z,N
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;Returns: Y,X = 16 Bit Quotient
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IDIV: JSR SETSRC ;Save Divisor
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STA TEMP1
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STA TEMP2
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IDIV: JSR .IDIV ;Do Division and
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JMP GETDST ;Return Quotient
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;imod(d) - Integer MODulus
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;Args: Y,X - Divisor
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;Requires: DSTPTR = Dividend
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;Sets: SRCPTR = Divisor
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; DSTPTR = Quotient
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; TEMP1,TEMP2 = Remainder
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;Affects: A,C,Z,N
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;Returns: Y,X = 16 Bit Remainder
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IMOD: JSR .IDIV ;Do Division and
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JMP RESRXY ;Return Remainder
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.IDIV JSR SETSRC ;Save Divisor
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STY TEMP1
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STY TEMP1+1
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LDX #16 ;repeat for each bit: ...
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IDIVL: ASL DSTLO ;dividend lb & hb*2, msb -> Carry
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ROL DSTHI
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.IDLOOP ASL DSTPTR ;dividend lb & hb*2, msb -> Carry
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ROL DSTPTR+1
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ROL TEMP1 ;remainder lb & hb * 2 + msb from carry
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ROL TEMP2
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ROL TEMP1+1
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LDA TEMP1
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SEC
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SBC SRCLO ;substract divisor to see if it fits in
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SBC SRCPTR ;subtract divisor to see if it fits in
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TAY ;lb result -> Y, for we may need it later
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LDA TEMP2
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SBC SRCHI
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BCC IDIVS ;if carry=0 then divisor didn't fit in yet
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STA TEMP2 ;else save substraction result as new remainder,
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LDA TEMP1+1
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SBC SRCPTR+1
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BCC .IDSKIP ;if carry=0 then divisor didn't fit in yet
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STA TEMP1+1 ;else save substraction result as new remainder,
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STY TEMP1
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INC DSTLO ;and INCrement result cause divisor fit in 1 times
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IDIVS: DEX
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BNE IDIVL
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INC DSTPTR ;and INCrement result cause divisor fit in 1 times
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.IDSKIP DEX
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BNE .IDLOOP
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RTS
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;ishftl(n,i) - Shift Integer i to the Left n Bits
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;Sets: TEMP1, TEMP2 = LSB, MSB of Result
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;Affects: A,Y,N,Z,C
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;Returns: Y,X = Shifted Integer
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;Returns: A = Bits Shifted out of Integer
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; Y,X = Shifted Integer
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ISHFTL: JSR SAVRXY ;Save X,Y in TEMP1,TEMP2
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TAY ;Set Counter to Number of Bits
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ASL TEMP1 ;Shift LSB to Left
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BEQ .RESRXY ;If Zero, Return
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LDA #0 ;Clear Overflow
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.LSLOOP ASL TEMP1 ;Shift LSB to Left
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ROL TEMP2 ;Rotate MSB to Left
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ROL ;Rotate Carry into A
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DEY ;Decrement Counter
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BNE ISHFTL ; and Loop if Not 0
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BEQ ISHFTX ;Return Shifted Integer
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BNE .LSLOOP ; and Loop if Not 0
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BEQ .RESRXY ;Return Shifted Integer
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;ishftr(n,i) - Shift Integer i to the Right n Bits
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;Sets: TEMP1, TEMP2 = LSB, MSB of Result
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;Affects: A,Y,N,Z,C
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;Returns: Y,X = Shifted Integer
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;Returns: A = Bits Shifted out of Integer
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; Y,X = Shifted Integer
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ISHFTR: JSR SAVRXY ;Save X,Y in TEMP1,TEMP2
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TAY ;Copy
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LSR TEMP1 ;Shift LSB to Right
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ROR TEMP2 ;Rotate MSB to Right
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TAY ;Set Counter to Number of Bits
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BEQ .RESRXY ;If Zero, Return
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LDA #0 ;Clear Overflow
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.RSLOOP LSR TEMP2 ;Shift MSB to Right
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ROR TEMP1 ;Rotate LSB to Right
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ROR ;Rotate Carry into A
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DEY ;Decrement Counter
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BNE ISHFTR ; and Loop if Not 0
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ISHFTX: JMP RESRXY ;Load Shifted Integer and Return
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BNE .RSLOOP ; and Loop if Not 0
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BEQ .RESRXY ;Load Shifted Integer and Return
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;atoi(&s) - ASCII string TO Integer
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;Args: Y,X = Address of String to Convert
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@ -179,11 +204,11 @@ ISHFTX: JMP RESRXY ;Load Shifted Integer and Return
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ATOI: JSR SETSRC ;Initialize Source String
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STY TEMP1 ;Initialize Result
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STY TEMP2
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ATOIL: LDA (SRCLO),Y ;Get Next Character
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.AILOOP LDA (SRCLO),Y ;Get Next Character
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CMP #$30 ;If Less Than '0'
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BCC ATOIX ; Exit
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BCC .AIDONE ; Exit
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CMP #$3A ;If Greater Than '9'
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BCS ATOIX ; Exit
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BCS .AIDONE ; Exit
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AND #$0F ;Convert to Binary Nybble
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STA TEMP0 ; and Save It
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LDA TEMP1 ;Load Result
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@ -208,25 +233,26 @@ ATOIL: LDA (SRCLO),Y ;Get Next Character
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ADC TEMP2
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STA TEMP2
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INY ;Increment Index
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BPL ATOIL ; and Loop
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ATOIX: TYA ;Return Number of Digits
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JMP RESRXY ;and Integer Value
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BPL .AILOOP ; and Loop
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.AIDONE TYA ;Return Number of Digits
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.RESRXY JMP RESRXY ;and Integer Value
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;itoa(n) - Integer TO ASCII string
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;Args: Y,X = Integer Value to Convert
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;Uses: DSTHI,DSTLO = Destination String
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;Affects: X
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;Returns: A,Y = Length of String
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ITOA: JSR CVIBCD ;Convert Integer to Packed BCD
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LDY #0 ;Initialize Index into String
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STY TEMP3
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ITOAA: LDY #4 ;Set Initial Digit Number
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ITOAZ: JSR UPBCDI ;Unpack Digit Y
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BNE ITOAS ;If Zero
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.ITOAA LDY #4 ;Set Initial Digit Number
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.IAZERO JSR UPBCDI ;Unpack Digit Y
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BNE .IASKIP ;If Zero
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DEY ; Decrement Digit Number
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BNE ITOAZ ; If Not Zero Loop
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BEQ ITOAS ; Else IDIVS Unpack
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ITOAL: JSR UPBCDI ;Unpack Digit #Y
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ITOAS: TAX ;Save Digit in X
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BNE .IAZERO ; If Not Zero Loop
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BEQ .IASKIP ; Else .IDSKIP Unpack
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.IALOOP JSR UPBCDI ;Unpack Digit #Y
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.IASKIP TAX ;Save Digit in X
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TYA ;Push Digit Number into Stack
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PHA
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TXA ;and Restore Digit
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@ -237,7 +263,7 @@ ITOAS: TAX ;Save Digit in X
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PLA ;Pull Digit Number off Stack
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TAY
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DEY ;Decrement Digit Number
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BPL ITOAL ;Loop if >= Zero
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BPL .IALOOP ;Loop if >= Zero
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LDA #0 ;Terminate String
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STA (DSTLO),Y
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TYA ;Return String Length
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@ -250,18 +276,20 @@ ITOAS: TAX ;Save Digit in X
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;Uses: TEMP0 = Low Byte
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; TEMP1 = Middle Byte
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; TEMP2 = High Nybble
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;Affects: X,C,N,Z
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;Affects: X,N,Z
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;Returns: A = Unpacked Digit
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UPBCDI: TYA ;Divide Digit Number by 2,
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LSR ; Setting Carry
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TAX ; if Digit Number is Odd
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LDA TEMP0,X ;Load BCD Byte
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BCC UPBCDS ;If Digit Number is Odd
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LSR ;Shift High Nybble to Low Nybble
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LSR
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LSR
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LSR
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UPBCDS: AND #$0F ;Strip Off High Nybble
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UPBCDI: PHP
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TYA ;Divide Digit Number by 2,
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LSR ; Setting Carry
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TAX ; if Digit Number is Odd
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LDA TEMP0,X ;Load BCD Byte
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BCC .UPSKIP ;If Digit Number is Odd
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LSR ; Shift High Nybble to Low Nybble
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LSR
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LSR
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LSR
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.UPSKIP PLP
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AND #$0F ;Strip Off High Nybble
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RTS
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;cvibcd(int) - ConVert Integer to packed Binary Coded Decimal
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@ -269,7 +297,7 @@ UPBCDS: AND #$0F ;Strip Off High Nybble
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;Sets: TEMP0 = Tens and Ones Digit
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; TEMP1 = Thousands and Hundreds Digit
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; TEMP2 = Ten-Thousands Digit
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;Affects: A,X,Y
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;Affects: A
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CVIBCD: LDA #0 ;Clear BCD Bytes
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STA TEMP0
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STA TEMP1
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@ -283,7 +311,7 @@ CVIBCD: LDA #0 ;Clear BCD Bytes
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PHA
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TSX ;Copy Stack Pointer to X
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LDY #16 ;Process 16 bits of Binary
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CVIBCL: ASL $101,X ;Shift High Bit Into Carry
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.CVLOOP ASL $101,X ;Shift High Bit Into Carry
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ROL $102,X
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LDA TEMP0 ;Add 6 Digit BCD Number Itself
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ADC TEMP0 ; Effectively Multiplying It by 2
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@ -295,8 +323,10 @@ CVIBCL: ASL $101,X ;Shift High Bit Into Carry
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ADC TEMP2
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STA TEMP2
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DEY ;Decrement Counter and
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BNE CVIBCL ; Process Next Bit
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PLA ;Restore Stack
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BNE .CVLOOP ; Process Next Bit
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PLA ;Restore X and Y Registers
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PLA
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PLP ;Restore Status Register
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RTS
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ENDSUBROUTINE
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@ -2,69 +2,77 @@
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* intlib - Standard Library Routines for Integer Values *
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*********************************************************/
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/* Absolute Value *
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* Args: w - Word to get absolute value of *
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* Returns: (int) Absolute value of w */
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/* Integer Absolute Value *
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* Args: int w - Integer to test *
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* Returns: int v -Absolute value of w */
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char iabs();
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/* Add Integers *
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* Requires: setsrc(g) - Augend *
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* Args: d - Addend *
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* Returns: (int) Sum */
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/* Integer Add *
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* Setup: setsrc(g) - Augend *
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* Args: int d - Addend *
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* Returns: char c - Carry *
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* int r - Sum */
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char iadd();
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/* Convert ASCII String to Unsigned Integer *
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* Args: &s - String to Convert *
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* Returns: (char) Number of digits parsed *
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* (int) Numeric value of string */
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/* ASCII to Integer *
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* Convert ASCII string to Unsigned Integer *
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* Args: &s - String to Convert *
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* Returns: char n - Number of digits parsed *
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* int v - Numeric value of string */
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char atoi();
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/* Convert Unsigned Integer to ASCII String *
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* Requires: setdst(s) - Destination String *
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* Args: w - Unsigned Byte to Convert *
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* Returns: Length of string */
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/* Integer to ASCII *
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* Convert Unsigned Integer to String *
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* Setup: setdst(s) - Destination String *
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* Args: int w - Unsigned Int to Convert *
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* Returns: char n - Length of string */
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void itoa();
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/* Divide Unsigned Integers *
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* Requires: setsrc(n) - Numerator *
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* Args: d - Denominator *
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* Returns: (int) Quotient */
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/* Integer Divide *
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* Divide Unsigned Integers *
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* Aetup: setdst(n) - Numerator *
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* Args: int d - Denominator *
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* Returns: int q - Quotient */
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char idiv();
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/* Maximum of Two Integers *
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/* Integer Maximum *
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* Return Largest of Two Integers *
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* Requires: setsrc(i) - First Integer *
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* Args: j - Second Integer *
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* Returns: (int) Greater of the Two */
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char max();
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* Args: int j - Second Integer *
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* Returns: int m - Greater of the Two */
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char imax();
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|
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/* Minimum of Two Integers *
|
||||
/* Integer Minimum *
|
||||
* Return smallest of Two Integers *
|
||||
* Requires: setsrc(i) - First Integer *
|
||||
* Args: j - Second Integer *
|
||||
* Returns: (int) Lesser of the Two */
|
||||
char min();
|
||||
* Args: int j - Second Integer *
|
||||
* Returns: int m - Lesser of the Two */
|
||||
char imin();
|
||||
|
||||
/* Multiply Unsigned Integers *
|
||||
* Requires: setsrc(m) - Muliplicand *
|
||||
* Args: r - Multiplier *
|
||||
* Returns: (char) Product (Bits 16-23) *
|
||||
* (int) Product (Bits 0-15) */
|
||||
char mult();
|
||||
/* Integer Multiply *
|
||||
* Multiply Unsigned Integers *
|
||||
* Requires: setdst(m) - Muliplicand *
|
||||
* Args: int r - Multiplier *
|
||||
* Returns: long p - Product */
|
||||
char imult();
|
||||
|
||||
/* Shift Integer Left *
|
||||
* Args: n - Number of Bits to Shift *
|
||||
* w - Integer Value to Shift *
|
||||
* Returns: Shifted Integer */
|
||||
/* Integer Left Shift *
|
||||
* Args: char n - Number of Bits *
|
||||
* int w - Value to Shift *
|
||||
* Returns: char v - Overflow Bits *
|
||||
int r - Shifted Integer */
|
||||
char ishftl();
|
||||
|
||||
/* Shift Byte Right *
|
||||
* Args: n - Number of Bits to Shift *
|
||||
* w - Integer Value to Shift *
|
||||
* Returns: Shifted Integer */
|
||||
/* Integer Shift Right *
|
||||
* Args: char n - Number of Bits *
|
||||
* int w - Value to Shift *
|
||||
* Returns: char v - Overflow Bits *
|
||||
int r - Shifted Integer */
|
||||
char ishftr();
|
||||
|
||||
/* Subtract Integers *
|
||||
/* Integer Subtract *
|
||||
* Requires: setsrc(m) - Minuend *
|
||||
* Args: s - Subtrahend *
|
||||
* Returns: (int) Difference */
|
||||
* Args: int s - Subtrahend *
|
||||
* Returns: char c - Carry *
|
||||
* int d - Difference */
|
||||
char isub();
|
||||
|
||||
|
||||
@ -14,9 +14,10 @@
|
||||
char size;
|
||||
char s[128]; //Test String
|
||||
|
||||
int ivar,ival; //Integer Variables
|
||||
int icmp,itot,ires; //Function Variables
|
||||
int less, more; //Test Values for imin() and imax()
|
||||
char cval,cnum,ctot; //Character Function Variables
|
||||
int ivar,ival; //Integer Variables
|
||||
int icmp,itot,ires; //Function Variables
|
||||
int less, more; //Test Values for imin() and imax()
|
||||
|
||||
int yx, dd; //Function Arguments and Variables
|
||||
|
||||
@ -53,35 +54,70 @@ void itaati(ivar) {
|
||||
setdst(s); size = itoa(ivar); puts(s); putln("\"");
|
||||
puts("ATOI(\""); puts(s); puts("\")=$");
|
||||
ival = atoi(s); putwrd(ival); newlin();
|
||||
//cpival(ivar);
|
||||
cpival(ivar);
|
||||
}
|
||||
|
||||
/* Test iadd() and isub() */
|
||||
//**needs iaddc()
|
||||
void addsub(ivar) {
|
||||
newlin();
|
||||
putint(ival); putchr('+'); putint(ivar); putchr('=');
|
||||
setsrc(ival); itot = iadd(ivar); putint(itot); newlin();
|
||||
putint(itot); putchr('-'); putint(ivar); putchr('=');
|
||||
setsrc(itot); ires = isub(ivar); putint(ires); newlin();
|
||||
putint(ival); putc('+'); putint(ivar); putc('=');
|
||||
setsrc(ival); ctot, itot = iadd(ivar);
|
||||
putint(itot); puts(" carry=$"); puthex(ctot); newlin();
|
||||
putint(itot); putc('-'); putint(ivar); putc('=');
|
||||
setsrc(itot); ires = isub(ivar);
|
||||
putint(itot); puts(" carry=$"); puthex(ctot); newlin();
|
||||
cpival(ires);
|
||||
}
|
||||
|
||||
/* Test imult() and idiv() */
|
||||
void mltdiv(ivar) {
|
||||
newlin();
|
||||
putint(ival); putchr('X'); putint(ivar); putchr('=');
|
||||
setsrc(ival); itot = imult(ivar); putint(itot); newlin();
|
||||
putint(itot); putchr('/'); putint(ivar); putchr('=');
|
||||
setsrc(itot); ires = idiv(ivar); putint(ires); newlin();
|
||||
putint(ival); putc('*'); putint(ivar); putc('=');
|
||||
setdst(ival); cval,itot = imult(ivar); putint(itot);
|
||||
if (cval) puts(" OVERFLOW!"); newlin();
|
||||
putint(itot); putc('/'); putint(ivar); putc('=');
|
||||
setdst(itot); ires = idiv(ivar); putint(ires); newlin();
|
||||
cpival(ires);
|
||||
ival>>; setsrc(ival); cval,itot = iadd(itot);
|
||||
if (cval) return; //Number to Large to Modulo
|
||||
putint(itot); putc('%'); putint(ivar); putc('=');
|
||||
setdst(itot); ires = imod(ivar); putint(ires); newlin();
|
||||
cpival(ires);
|
||||
}
|
||||
|
||||
void prshft() {
|
||||
puts(); putc('('); putdec(cval); puts(",%");
|
||||
cnum = >ivar; putbin(cnum); putspc();
|
||||
cnum = <ivar; putbin(cnum); puts(")=");
|
||||
}
|
||||
|
||||
void prctot() {putc('%'); putbin(ctot); putspc();}
|
||||
|
||||
void pritot() {
|
||||
putc('%'); cnum = >itot; putbin(cnum);
|
||||
putspc(); cnum = <itot; putbin(cnum); putspc();
|
||||
}
|
||||
|
||||
/* Test ishftl() and ishiftr() */
|
||||
void shftlr(cval, ivar) {
|
||||
newlin();
|
||||
ival = ivar; for (cnum = 0; cnum < cval; cnum++) ival<<; prshft("ISHFTL");
|
||||
ctot, itot = ishftl(cval, ivar); prctot(); pritot(); newlin();
|
||||
cpival(itot);
|
||||
ival = ivar; for (cnum = 0; cnum < cval; cnum++) ival>>; prshft("ISHFTR");
|
||||
ctot, itot = ishftr(cval, ivar); pritot(); prctot(); newlin();
|
||||
cpival(itot);
|
||||
}
|
||||
|
||||
|
||||
main:
|
||||
|
||||
less = $009A; more = $00DE; minmax();
|
||||
less = $789A; more = $78DE; minmax();
|
||||
less = $7800; more = $BC00; minmax();
|
||||
less = $789A; more = $BCDE; minmax();
|
||||
less = $F18F; more = $F18F; minmax();
|
||||
anykey();
|
||||
|
||||
itaati(&0);
|
||||
@ -97,9 +133,27 @@ ival = &1234; addsub(&5678);
|
||||
ival = &23456; addsub(&34567);
|
||||
ival = &$7700; addsub(&$6600);
|
||||
ival = &$7FFF; addsub(&$8000);
|
||||
ival = &$FDEC; addsub(&$CDEF);
|
||||
anykey();
|
||||
|
||||
//ival = &123; mltdiv(&234);
|
||||
ival = &23; mltdiv(&34);
|
||||
ival = &123; mltdiv(&234);
|
||||
ival = &255; mltdiv(&257);
|
||||
anykey();
|
||||
|
||||
shftlr(0,&$AA55);
|
||||
shftlr(1,&$A55A);
|
||||
shftlr(2,&$F00F);
|
||||
shftlr(3,&$0FF0);
|
||||
shftlr(4,&$AA55);
|
||||
shftlr(7,&$A55A);
|
||||
anykey();
|
||||
shftlr(8,&$AA55);
|
||||
shftlr(9,&$A55A);
|
||||
shftlr(11,&$0FF0);
|
||||
shftlr(12,&$AA55);
|
||||
shftlr(15,&$A55A);
|
||||
shftlr(16,&$F00F);
|
||||
|
||||
|
||||
goto exit;
|
||||
goto exit;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user