www.pudn.com > miracl.zip > ARM.MCS
;
; ARM Macros file
;
; Interleaved Version
;
; Triple register is R4|R3|R2
; MUL_START. Initialise registers. Make R5 and R6 point to multipliers a
; and b. R7 points at result c.
; Initialise Triple register to 0
; See makemcs.txt for more information about this file
;
;
MACRO MUL_START
__asm {
MOV r5,a
MOV r6,b
MOV r7,c
MOV r4,#0
MOV r3,#0
MOV r2,#0
ENDM
;
; STEP macro. Calculates a double-register partial product
; and adds it to the triple register total
; Parameters 1 & 2: Indices i and j for partial product multipliers a[i]
; and b[j]
; STEP 1 even
MACRO STEP
LDR r0,[r5,#(4*%d)]
LDR r1,[r6,#(4*%d)]
UMULL r8,r9,r0,r1
ADDS r2,r2,r8
ADCS r3,r3,r9
ADC r4,r4,#0
ENDM
MACRO STEP1M
LDR r0,[r5,#(4*%d)]
LDR r1,[r6,#(4*%d)]
UMULL r8,r9,r0,r1
ENDM
MACRO STEP1A
ADDS r2,r2,r8
ADCS r3,r3,r9
ADC r4,r4,#0
ENDM
MACRO STEP2M
LDR r0,[r5,#(4*%d)]
LDR r1,[r6,#(4*%d)]
UMULL r11,r12,r0,r1
ENDM
MACRO STEP2A
ADDS r2,r2,r11
ADCS r3,r3,r12
ADC r4,r4,#0
ENDM
;
; MFIN macro. Finish column calculation. Store Sum for this column
; and get Carry for next
; Parameter 1: Index k for Column Sum c[k]
MACRO MFIN
STR r2,[r7,#(4*%d)]
MOV r2,r3
MOV r3,r4
MOV r4,#0
ENDM
;
; LAST
;
MACRO LAST
LDR r0,[r5,#(4*%d)]
LDR r1,[r6,#(4*%d)]
MLA r2,r0,r1,r2
ENDM
;
; MUL_END
; Parameter 1: Index for final carry c[.]
MACRO MUL_END
STR r2,[r7,#(4*%d)]
}
ENDM
;
; SQR_START
;
MACRO SQR_START
__asm {
MOV r5,a
MOV r7,c
MOV r4,#0
MOV r3,#0
MOV r2,#0
ENDM
;
; DSTEP macro. Calculates a double-register partial product
; and add it twice to a triple register total
; Parameters 1 & 2 : Indices of partial product multipliers
MACRO DSTEP
LDR r0,[r5,#(4*%d)]
LDR r1,[r5,#(4*%d)]
UMULL r8,r9,r0,r1
ADDS r2,r2,r8
ADCS r3,r3,r9
ADC r4,r4,#0
ADDS r2,r2,r8
ADCS r3,r3,r9
ADC r4,r4,#0
ENDM
MACRO DSTEP1M
LDR r0,[r5,#(4*%d)]
LDR r1,[r5,#(4*%d)]
UMULL r8,r9,r0,r1
ENDM
MACRO DSTEP1A
ADDS r2,r2,r8
ADCS r3,r3,r9
ADC r4,r4,#0
ADDS r2,r2,r8
ADCS r3,r3,r9
ADC r4,r4,#0
ENDM
MACRO DSTEP2M
LDR r0,[r5,#(4*%d)]
LDR r1,[r5,#(4*%d)]
UMULL r11,r12,r0,r1
ENDM
MACRO DSTEP2A
ADDS r2,r2,r11
ADCS r3,r3,r12
ADC r4,r4,#0
ADDS r2,r2,r11
ADCS r3,r3,r12
ADC r4,r4,#0
ENDM
;
; SELF macro. Calculate the double-register square and
; add it to a triple register total
; Parameter 1 : Index of diagonal element
MACRO SELF
LDR r0,[r5,#(4*%d)]
UMULL r8,r9,r0,r0
ADDS r2,r2,r8
ADCS r3,r3,r9
ADC r4,r4,#0
ENDM
;
; SFIN macro. Finish column calculation for squaring. Store Sum
; and get Carry for next column.
; Parameter 1: Index of Column Sum
MACRO SFIN
STR r2,[r7,#(4*%d)]
MOV r2,r3
MOV r3,r4
MOV r4,#0
ENDM
;
; SQR_END
; Parameter 1: Index for final carry
MACRO SQR_END
STR r2,[r7,#(4*%d)]
}
ENDM
;
; REDC_START macro
;
MACRO REDC_START
__asm {
MOV r5,a
MOV r6,b
MOV r7,ndash
MOV r4,#0
MOV r3,#0
LDR r2,[r5]
ENDM
;
; RFINU macro
;
MACRO RFINU
MUL r1,r7,r2
STR r1,[r5,#(4*%d)]
LDR r0,[r6]
UMULL r8,r9,r0,r1
ADDS r0,r2,r8
ADCS r2,r3,r9
ADC r3,r4,#0
LDR r0,[r5,#(4*(%d+1))]
ADDS r2,r2,r0
ADC r3,r3,#0
MOV r4,#0
ENDM
;
; RFIND macro
;
MACRO RFIND
STR r2,[r5,#(4*%d)]
LDR r0,[r5,#(4*(%d+1))]
ADDS r2,r3,r0
ADC r3,r4,#0
MOV r4,#0
ENDM
;
; REDC_END
;
MACRO REDC_END
STR r2,[r5,#(4*%d)]
STR r3,[r5,#(4*(%d+1))]
}
ENDM
;
; ADD_START macro - initialise for add/subtract, do first one
;
MACRO ADD_START
__asm {
MOV r6,a
MOV r7,b
MOV r8,c
LDR r0,[r6]
LDR r1,[r7]
ADDS r0,r0,r1
STR r0,[r8]
ENDM
;
; ADD macro. Add two numbers from memory and store result in memory.
; Don't forget carry bit
;
MACRO ADD
LDR r0,[r6,#(4*%d)]
LDR r1,[r7,#(4*%d)]
ADCS r0,r0,r1
STR r0,[r8,#(4*%d)]
ENDM
;
; ADD_END macro. Catch carry
;
MACRO ADD_END
MOV r0,#0
MOVCS r0,#1
MOV carry,r0
}
ENDM
;
; INC_START macro. Do first one
;
MACRO INC_START
__asm {
MOV r6,a
MOV r7,b
LDR r0,[r6]
LDR r1,[r7]
ADDS r0,r0,r1
STR r0,[r6]
ENDM
;
; INC macro. Add two numbers from memory and store result in memory.
; Don't forget carry bit
;
MACRO INC
LDR r0,[r6,#(4*%d)]
LDR r1,[r7,#(4*%d)]
ADCS r0,r0,r1
STR r0,[r6,#(4*%d)]
ENDM
;
; INC_END macro. Catch carry
;
MACRO INC_END
MOV r0,#0
MOVCS r0,#1
MOV carry,r0
}
ENDM
;
; SUB_START macro
;
MACRO SUB_START
__asm {
MOV r6,a
MOV r7,b
MOV r8,c
LDR r0,[r6]
LDR r1,[r7]
SUBS r0,r0,r1
STR r0,[r8]
ENDM
;
; SUB macro. Subtract two numbers in memory and store result in memory.
;
MACRO SUB
LDR r0,[r6,#(4*%d)]
LDR r1,[r7,#(4*%d)]
SBCS r0,r0,r1
STR r0,[r8,#(4*%d)]
ENDM
;
; SUB_END macro. Catch carry
;
MACRO SUB_END
MOV r0,#0
MOVCC r0,#1
MOV carry,r0
}
ENDM
;
; DEC_START macro
;
MACRO DEC_START
__asm {
MOV r6,a
MOV r7,b
LDR r0,[r6]
LDR r1,[r7]
SUBS r0,r0,r1
STR r0,[r6]
ENDM
;
; DEC macro. Subtract two numbers in memory and store result in memory.
;
MACRO DEC
LDR r0,[r6,#(4*%d)]
LDR r1,[r7,#(4*%d)]
SBCS r0,r0,r1
STR r0,[r6,#(4*%d)]
ENDM
;
; DEC_END macro. Catch carry
;
MACRO DEC_END
MOV r0,#0
MOVCC r0,#1
MOV carry,r0
}
ENDM
;
; KADD_START macro. Zero Carry flag
;
MACRO KADD_START
__asm {
MOV r6,a
MOV r7,b
MOV r8,c
MOV r9,n
MOV r0,#0
ADDS r0,r0,r0
k%d:
ENDM
;
; KASL macro. Important that carry flag is undisturbed!
;
MACRO KASL
SUB r9,r9,#1
TEQ r9,#0
BEQ k%d
ADD r6,r6,#(4*%d)
ADD r7,r7,#(4*%d)
ADD r8,r8,#(4*%d)
B k%d
k%d:
ENDM
;
; KADD_END macro
;
MACRO KADD_END
MOV r0,#0
MOVCS r0,#1
MOV carry,r0
}
ENDM
;
; KINC_START macro. Set carry to Zero
;
MACRO KINC_START
__asm {
MOV r6,a
MOV r7,b
MOV r9,n
MOV r0,#0
ADDS r0,r0,r0
k%d:
ENDM
;
; KIDL macro. Important that carry flag is undisturbed!
;
MACRO KIDL
SUB r9,r9,#1
TEQ r9,#0
BEQ k%d
ADD r6,r6,#(4*%d)
ADD r7,r7,#(4*%d)
B k%d
k%d:
ENDM
;
; KINC_END macro
;
MACRO KINC_END
MOV r0,#0
MOVCS r0,#1
MOV carry,r0
}
ENDM
;
; KDEC_START macro. Set carry
;
MACRO KDEC_START
__asm {
MOV r6,a
MOV r7,b
MOV r9,n
SUBS r0,r0,r0
k%d:
ENDM
;
; KDEC_END macro
;
MACRO KDEC_END
MOV r0,#0
MOVCC r0,#1
MOV carry,r0
}
ENDM