Commodore Amiga A500 Technical Reference Manual page 139

; Syscall86—how the 8086/8088 wants its parameter block
arranged:
STRUCTURE Syscall86,0
UWORD s86_AX
UWORD s86_BX
UWORD s86_CX
UWORD s86_DX
UWORD s86_SI
UWORD s86_DS
UWORD s86_DI
UWORD s86_ES
UWORD s86_BP
UWORD S86-PSW
UWORD s86_INT
; Syscall68— the way the 68000 wants its parameters arranged:
STRUCTURE Syscall68.0
ULONG s68_D0
ULONG s68_Dl
ULONG s68_D2
ULONG s68_D3
ULONG s68_D4
ULONG s68_D5
ULONG s68_D6
ULONG s68_D7
ULONG s68_A0
ULONG s68_A1
ULONG s68_A2
ULONG s68_A3
ULONG s68_A4
ULONG s68_A5
ULONG s68_A6
ULONG s68_PC
ULONG s68_ArgStack
ULONG s68_ArgLength
ULONG s68LMinStack
ULONG S68CCR
ULONG s68Process
UWORD s68_Command
UWORD s68_Status
UWORD s68_SigNum
136
; 8086 int # that will be
called
; pc to start execution from
; array to be pushed onto
stack
; number of bytes to be
pushed (must be even)
; minimum necessary stack
(0 = use default)
; condition code register
; ptr to process for this
block.
; special commands: see
below
;
; internal use: signal to
wake up process