mirror of
https://github.com/KarolS/millfork.git
synced 2024-12-25 06:29:17 +00:00
136 lines
2.9 KiB
Plaintext
136 lines
2.9 KiB
Plaintext
import stdio
|
|
|
|
struct reg {
|
|
pointer name
|
|
byte size
|
|
}
|
|
|
|
#if ARCH_6502
|
|
|
|
const array(reg) reg_defs = [reg("A"z, 1),reg("X"z, 1),reg("Y"z, 1),reg("S"z, 1),reg("P"z, 1),reg("PC"z, 2)]
|
|
|
|
macro asm void save_regs() {
|
|
JSR save_regs_inner
|
|
save_regs_inner:
|
|
STA reg_values
|
|
STX reg_values + 2
|
|
STY reg_values + 4
|
|
PHP
|
|
PLA
|
|
STA reg_values + 8
|
|
TSX
|
|
STX reg_values + 6
|
|
PLA
|
|
TAY
|
|
PLA
|
|
TAX
|
|
CPY #2
|
|
BCS save_regs_pcl_large
|
|
DEX
|
|
save_regs_pcl_large:
|
|
DEY
|
|
DEY
|
|
STY reg_values + 10
|
|
STX reg_values + 11
|
|
}
|
|
|
|
#elseif ARCH_6809
|
|
|
|
const array(reg) reg_defs = [reg("D"z, 2),reg("X"z, 2),reg("Y"z, 2),reg("U"z, 2),reg("S"z, 2),reg("CC"z, 1),reg("DP"z, 1),reg("PC"z, 2)]
|
|
|
|
macro asm void save_regs() {
|
|
PSHS PC
|
|
STD reg_values
|
|
TFR CC,B
|
|
STB reg_values+10
|
|
STB reg_values+11
|
|
STX reg_values+2
|
|
STY reg_values+4
|
|
STU reg_values+6
|
|
PULS D
|
|
SUBD #2
|
|
STD reg_values+14
|
|
STS reg_values+8
|
|
TFR DP,B
|
|
STB reg_values+12
|
|
STB reg_values+13
|
|
}
|
|
|
|
#elseif CPUFEATURE_Z80
|
|
|
|
#pragma zilog_syntax
|
|
const array(reg) reg_defs = [reg("AF"z, 2),reg("BC"z, 2),reg("DE"z, 2),reg("HL"z, 2),reg("SP"z, 2),reg("IX"z, 2),reg("IY"z, 2),reg("PC"z, 2)]
|
|
|
|
macro asm void save_regs() {
|
|
CALL save_regs_inner
|
|
save_regs_inner:
|
|
LD (reg_values+6),HL
|
|
PUSH AF
|
|
POP HL
|
|
LD (reg_values+0),HL
|
|
LD (reg_values+2),BC
|
|
LD (reg_values+3),DE
|
|
POP HL
|
|
LD B, $ff
|
|
LD C, $fd
|
|
ADD HL,BC
|
|
LD (reg_values+14),HL
|
|
LD (reg_values+10),IX
|
|
LD (reg_values+12),IY
|
|
}
|
|
|
|
#elseif ARCH_I80
|
|
|
|
#pragma intel_syntax
|
|
const array(reg) reg_defs = [reg("AF"z, 2),reg("BC"z, 2),reg("DE"z, 2),reg("HL"z, 2),reg("SP"z, 2),reg("PC"z, 2)]
|
|
|
|
macro asm void save_regs() {
|
|
CALL save_regs_inner
|
|
save_regs_inner:
|
|
LD (reg_values+6),HL
|
|
PUSH AF
|
|
POP HL
|
|
LD (reg_values+0),HL
|
|
LD H,B
|
|
LD L,C
|
|
LD (reg_values+2),HL
|
|
EX HL,DE
|
|
LD (reg_values+3),HL
|
|
POP HL
|
|
LD B, $ff
|
|
LD C, $fd
|
|
ADD HL,BC
|
|
LD (reg_values+10),HL
|
|
}
|
|
|
|
#else
|
|
|
|
#error unsupported architecture
|
|
|
|
#endif
|
|
|
|
array(word) reg_values[reg_defs.length]
|
|
|
|
void main() {
|
|
word w
|
|
byte i
|
|
pointer.reg r
|
|
save_regs()
|
|
ensure_mixedcase()
|
|
for i,r:reg_defs {
|
|
putstrz(r->name)
|
|
putchar('=')
|
|
w = reg_values[i]
|
|
if r->size == 1 {
|
|
putchar(hi_nibble_to_hex(w.lo))
|
|
putchar(lo_nibble_to_hex(w.lo))
|
|
} else {
|
|
putchar(hi_nibble_to_hex(w.hi))
|
|
putchar(lo_nibble_to_hex(w.hi))
|
|
putchar(hi_nibble_to_hex(w.lo))
|
|
putchar(lo_nibble_to_hex(w.lo))
|
|
}
|
|
new_line()
|
|
}
|
|
while true {}
|
|
} |