1. Jet Set Radio, called Jet Grind Radio in the US. See also Jet Set Radio Future.
2. A 6502 instruction that pushes the program counter and
jumps to a new instruction stream. It can be parsed as "Jump to SubRoutine" or "Jump and Save Return."
- Function: PC - 1 => Stack; N => PC
- Updates flags: none
- Opcode numbers:
abs JSR $5597 (6 cycles)
Note that because JSR pushes the address minus 1, you must
account for this when retrieving the arguments from calls
of the form
...
jsr prodos_entry
.dcb write
.dcw write_args
...
Super Mario Brothers uses this technique for its
switch statements;
ProDOS uses it for syscalls.
Similar: JMP | BRK | RTS
See also: 6502 instructions | 6502 addressing modes