usr/src/sys/h/pcb.m

#
#       pcb.m   4.1     11/9/80
#
#
#       VAX process control block
#

        .set    PCB_KSP,0       # kernel stack pointer
        .set    PCB_ESP,4       # exec stack pointer
        .set    PCB_SSP,8       # supervisor stack pointer
        .set    PCB_USP,12      # user stack pointer
        .set    PCB_R0,16
        .set    PCB_R1,20
        .set    PCB_R2,24
        .set    PCB_R3,28
        .set    PCB_R4,32
        .set    PCB_R5,36
        .set    PCB_R6,40
        .set    PCB_R7,44
        .set    PCB_R8,48
        .set    PCB_R9,52
        .set    PCB_R10,56
        .set    PCB_R11,60
        .set    PCB_R12,64
        .set    PCB_R13,68
        .set    PCB_PC,72       # program counter
        .set    PCB_PSL,76      # program status longword
        .set    PCB_P0BR,80     # seg 0 base register
        .set    PCB_P0LR,84     # seg 0 length register and astlevel
        .set    PCB_P1BR,88     # seg 1 base register
        .set    PCB_P1LR,92     # seg 1 length register and pme

#
#       software pcb (extension)
#

        .set    PCB_SZPT,96     # number of pages of user page table
        .set    PCB_CMAP2,100
        .set    PCB_SSWAP,104
        .set    PCB_SIGC,108