Datasheet

ARMulator Reference
ARM DUI0058D Copyright © 1999-2001 ARM Limited. All rights reserved. 4-5
4.2.2 ARMulif_GetReg
This function reads a register for a specified processor mode.
Syntax
ARMword ARMulif_GetReg(RDI_ModuleDesc *mdesc, ARMword mode, unsigned reg)
where:
mdesc is the handle for the core.
mode is the processor mode. Values for mode are defined in armdefs.h (see
Mode numbers on page 4-4).
reg is the register to read. Valid values are 0 to 14 for registers r0 to r14, PC,
or CPSR.
Return
The function returns the value in the given register for the specified mode.
4.2.3 ARMulif_SetReg
This function writes a register for a specified processor mode.
Syntax
void ARMulif_SetReg(RDI_ModuleDesc *mdesc, ARMword mode,
unsigned reg, ARMword value)
where:
mdesc is the handle for the core.
mode is the processor mode. Mode numbers are defined in armdefs.h (see Mode
numbers on page 4-4).
reg is the register to write. Valid values are 0 to 14 for registers r0 to r14, PC,
or CPSR.
value is the value to be written to register reg for the specified processor mode.
Usage
You can use this function to write to any of the general purpose registers r0 to r14, the
PC, or CPSR.