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📄 dss_isr_evm62_stub.lst

📁 Using DSP/BIOS I/O in Multichannel Systems
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2        000000f8 008003A2          mvc     b0, csr                         ; globally enable interrupts
2                                                                           ; to allow nested interrupts
2                           
2        000000fc 01BC54F6          stw     b3, *SP--[2]                    ; save old IER
2                           
1                                   ; Save user registers (except ISR registers)
1        00000100                   C62_save C62_ABTEMPS & ~(C62_ISRAB), 0 & ~(C62_ISRC)
2                                   .asg    0, mask
2                                   .asg    0, bitn_a
2                                   .asg    0, bitn_b
2                                   .asg    -1, bitn_c
2                                   .asg    0, bitn_0
2                                   .asg    0, bitn_1
2                                   .asg    0, bitn_next
2                                   .asg    0, bitcount
2                                   .asg    0, a_bitcount
2                                   .asg    0, b_bitcount
2                                   .asg    0, c_bitcount
2                                   .asg    0, creg0
2                                   .asg    0, creg1
2                                   .asg    0, creg_next
2                           
2                                   .eval   C62_ABTEMPS & ~(C62_ISRAB) & 0x0000ffff, amask
2                                   .eval   (C62_ABTEMPS & ~(C62_ISRAB) >> 16) & 0xffff, bmask
2                                   .eval   1008 & ~(C62_B15 >> 16), bmask          ; don't save B15
2                                   .eval   0 & ~(C62_ISRC), cmask
2                           
TMS320C6x COFF Assembler         Version 4.00     Fri Sep 15 10:24:27 2000
Copyright (c) 1996-2000 Texas Instruments Incorporated
dss_isr_evm62_stub.s62                                               PAGE    5

2                                   .if     (1020 = 0) & (1008 = 0) & (0 = 0)
2                                       .mexit
2                                   .endif
2                           
2                                   ;
2                                   ; Count 1 bits in masks
2                                   ;
2        00000100                   NUM_BITS        amask, a_bitcount
3                                   .asg    0, BITCOUNT
3                                   .eval   1020, regmask
3                                   .loop   32
3                                       .if (regmask & 1)
3                                           .eval   BITCOUNT + 1, BITCOUNT
3                                       .endif
3                                       .eval       regmask >> 1, regmask
3                                   .endloop
4                                       .if (1020 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       1020 >> 1, regmask
4                                       .if (510 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       510 >> 1, regmask
4                                       .if (255 & 1)
4                                           .eval   0 + 1, BITCOUNT
4                                       .endif
4                                       .eval       255 >> 1, regmask
4                                       .if (127 & 1)
4                                           .eval   1 + 1, BITCOUNT
4                                       .endif
4                                       .eval       127 >> 1, regmask
4                                       .if (63 & 1)
4                                           .eval   2 + 1, BITCOUNT
4                                       .endif
4                                       .eval       63 >> 1, regmask
4                                       .if (31 & 1)
4                                           .eval   3 + 1, BITCOUNT
4                                       .endif
4                                       .eval       31 >> 1, regmask
4                                       .if (15 & 1)
4                                           .eval   4 + 1, BITCOUNT
4                                       .endif
4                                       .eval       15 >> 1, regmask
4                                       .if (7 & 1)
4                                           .eval   5 + 1, BITCOUNT
4                                       .endif
4                                       .eval       7 >> 1, regmask
4                                       .if (3 & 1)
4                                           .eval   6 + 1, BITCOUNT
4                                       .endif
4                                       .eval       3 >> 1, regmask
4                                       .if (1 & 1)
4                                           .eval   7 + 1, BITCOUNT
4                                       .endif
TMS320C6x COFF Assembler         Version 4.00     Fri Sep 15 10:24:27 2000
Copyright (c) 1996-2000 Texas Instruments Incorporated
dss_isr_evm62_stub.s62                                               PAGE    6

4                                       .eval       1 >> 1, regmask
4                                       .if (0 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       0 >> 1, regmask
4                                       .if (0 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       0 >> 1, regmask
4                                       .if (0 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       0 >> 1, regmask
4                                       .if (0 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       0 >> 1, regmask
4                                       .if (0 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       0 >> 1, regmask
4                                       .if (0 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       0 >> 1, regmask
4                                       .if (0 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       0 >> 1, regmask
4                                       .if (0 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       0 >> 1, regmask
4                                       .if (0 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       0 >> 1, regmask
4                                       .if (0 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       0 >> 1, regmask
4                                       .if (0 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       0 >> 1, regmask
4                                       .if (0 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       0 >> 1, regmask
4                                       .if (0 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       0 >> 1, regmask
4                                       .if (0 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
TMS320C6x COFF Assembler         Version 4.00     Fri Sep 15 10:24:27 2000
Copyright (c) 1996-2000 Texas Instruments Incorporated
dss_isr_evm62_stub.s62                                               PAGE    7

4                                       .endif
4                                       .eval       0 >> 1, regmask
4                                       .if (0 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       0 >> 1, regmask
4                                       .if (0 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       0 >> 1, regmask
4                                       .if (0 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       0 >> 1, regmask
4                                       .if (0 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       0 >> 1, regmask
4                                       .if (0 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       0 >> 1, regmask
4                                       .if (0 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       0 >> 1, regmask
4                                       .if (0 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       0 >> 1, regmask
4                                       .if (0 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       0 >> 1, regmask
2        00000100                   NUM_BITS        bmask, b_bitcount
3                                   .asg    0, BITCOUNT
3                                   .eval   1008, regmask
3                                   .loop   32
3                                       .if (regmask & 1)
3                                           .eval   BITCOUNT + 1, BITCOUNT
3                                       .endif
3                                       .eval       regmask >> 1, regmask
3                                   .endloop
4                                       .if (1008 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       1008 >> 1, regmask
4                                       .if (504 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       504 >> 1, regmask
4                                       .if (252 & 1)
4                                           .eval   BITCOUNT + 1, BITCOUNT
4                                       .endif
4                                       .eval       252 >> 1, regmask
TMS320C6x COFF Assembler         Version 4.00     Fri Sep 15 10:24:27 2000
Copyright (c) 1996-2000 Texas Instruments Incorporated
dss_isr_evm62_stub.s62                                               PAGE    8

4                                       .if (126 & 1)

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