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Section 2 Software Specifications when Using the SH7339

2.1 Differences between the SH7339 and the Emulator

1. When the emulator system is initiated, it initializes the general registers and part of the control

registers as shown in table 2.1. The initial values of the actual SH7339 registers are undefined.

When the emulator is initiated from the workspace, a value to be entered is saved in a session.

Table 2.1 Register Initial Values at Emulator Link Up

Register Emulator at Link Up
R0 to R14 H'00000000
R15 (SP) H'A0000000
R0_BANK to R7_BANK H'00000000
PC H'A0000000
SR H'700000F0
GBR H'00000000
VBR H'00000000
MACH H'00000000
MACL H'00000000
PR H'00000000
SPC H'00000000
SSR H'000000F0
RS H'00000000
RE H'00000000
MOD H'00000000
A0G, A1G H'00000000
A0, A1 H'00000000
X0, X1 H'00000000
Y0, Y1 H'00000000
M0, M1 H'00000000
DSR H'00000000

2. The emulator uses the H-UDI; do not access the H-UDI.